| co_pseudo | company | address | cty_st_zip | telephone | Website | e_mail | active | Contact Name | Owner |
| 2S Well Drilling | 2S Well Drilling | PO Box 186 | Davidsonville, MD 21035 | 410-921-9300 | www.2SDrilling.com | Info@2SDrilling.com | | Shane Salta | Shane Salta |
| SCHULTES-NJ | A C Schultes Inc | 664 South Evergreen Ave | Woodbury, NJ 08097 | 856-845-5656 | www.acschultes.com | charlotte@acschultes.com | | | Jim Schultes |
| SCHULTES-DE | A C Schultes of Delaware | PO Box 188 | Bridgeville, DE 19933 | 302-337-8254 | www.acschultes.com/delaware-office | bunny@acsde.net | | | R Michael Collison |
| SCHULTES-MD | A C Schultes of Maryland, Inc. | 8221 Cloverleaf Dr | Millersville, MD 21108 | 410-841-6710 | www.acshcultes.com/maryland-office | Manager@acschultes.net | | Eileen | Richard Schultes |
| AC REIDER | A.C. Reider Drilling Company,Inc | 51 Frederick St | Dallastown, PA 17313 | 717-244-4521 | | acreiderdrilling@comcast.net | | | Michael Cochran |
| A-1 PUMP | A-1 Pump Services | 3414A Hughes Rd | Darlington, MD 21034 | 410-679-4622 | www.a1pumpservice.com | a1pumpservice@yahoo.com | | Lisa | Anthony Johnson |
| ABLE | Able Well & Pump Services | 8156 Solley Rd | Pasadena, MD 21122 | 410-255-1436 | www.ablewellandpumpservice.com | awpservice@verizon.net | | | John Youngbar |
| ADAMS | Adams Environmental | 8055 Ritchie Highway Suite 207 | Pasadena, MD 21122 | | | | | | |
| AEC | Advanced Environmental Concepts, Inc. | 1751-1 Pulaski Highway | Havre De Grace, MD 21078 | 410-939-5550 | www.aecenviro.com | gregb@aecenviro.com | | | Greg Beal |
| ADAISEY | Alan Daisey Well Drilling, Inc | 32647 Lighthouse road | Selbyville, DE 19975 | | | | | | Alan Daisey |
| ALEXANDER | Alexander's Plumbing & Pumps | 4236 Fairfield Rd | Fairfield, PA 17320 | 717-642-5285 | www.alexandersplumbingandpumps.org | alexandersplumbing@comcast.net | | | Chuck Alexander |
| ALEXANDER'S | Alexander's Well Drilling | P. O. Box 443 | Fairfield, PA 17320 | 717-642-5963 | www.alexanderswelldrilling.com | alexanderswell@comcast.net | | | Randall Alexander |
| AAG | All American Geotech, Inc | 43515 Wheadon Terrace | Chantilly, VA 20152 | 240-527-8395 | | kevin@allamericangeotech.com | | Kevin Kersh | Kevin Kersh |
| ALL AMERICAN | All American Well & Pump Service | 7709 Overhill Rd | Glen Burnie, MD 21060 | 410-766-2044 | | | | | Michael Ebert |
| Allied | Allied Environmental Services | P O Box 129 | Annapolis Junction, MD 20701 | 301-776-8370 | www.alliedwells.com | erin@alliedwells.com | | Erin Quick | Adam Santry |
| AMERICAN | American Water Well Systems | 20846 Camp Rd | Bridgeville, DE 19933 | 302-629-3796 | | awws@verizon.net | | | John McFarland |
| AMERIDRILL | AmeriDrill Inc | 1201 Edgely Rd | Levittown, PA 19057 | 215-269-7300 | www.drillingcompanypa.com | dlentz@ameridrill.com | | Deanna Lentz | Dennis Moore |
| BALDWIN | Andrew Bissett | 13575 Baldwin Road | Baldwin, MD | 443-956-0694 | | | | | Andrew Bissett |
| AQUA WORKS | Aqua Works | 11416 Greensboro Road | Denton, MD 21629 | 410-924-2770 | www.aquaworksmd.com | aquaworks123@yahoo.com | | | Michael Hause |
| AQUATECH | AquaTech Water Specialties | 22482 Camp Arrowhead Rd | Lewes, DE 19958 | 302-684-5045 | aquatechwaterspecialties.com | aquatech@verizon.net | | Lisa | Brian White |
| ARUNDEL GAS | Arundel Gas & Water Conditioning Co | PO Box 88 | Edgewater, MD 21037 | 410-956-2400 | www.agwc.com | tom@agwc.net | | | Tom Parlett, Sr. |
| ARUNDEL WELL | Arundel Well & Pump Services | PO Box 667 | Deale, MD 20751 | 410-867-3445 | www.arundelwell.com | awps88@hotmail.com | | | Brian Kloby |
| ATLANTICBLUE | Atlantic Blue Water Service | 1802 Baltimore Blvd | Westminster, MD 21157 | | | info@atlanticblue.net | | | |
| ATLANTIC | Atlantic Well Drilling | 10872 Concord Road | Seaford, DE 19973 | 302-875-5017 | | well105@comcast.net | | Kelly | Mike Kelley |
| ATWATER | Atwater Drilling Enterprises | 3465 Birdsville Rd | Davidsonville, MD 21035 | 410-798-1237 | | | | | Jason Kwiatkowski |
| A-ZONE | A-Zone Environmental Services | 273 James Burr Blvd | Kearneysville, WV 25430 | 304-724-6458 | www.a-zoneenvironmental.com | kbraithwaite@a-zoneenvironmental.com | | | Adrienne Morgan |
| BACKWOOD | Backwoods Well Drilling, LLC | 4819 Dave Rill Road | Hampstead, MD 21074 | 240-496-5563 | | dochertyrt@gmail.com | | | |
| RAINSOFT | Baltimore Water Treatment | 8839 Kelsoo Dr Ste C | Baltimore MD 21221 | 410-836-0682 | www.rainsoft.com | no licensing info online | | | |
| BENNER | Benner GeoServices Inc | 1861 Mile Hill Rd | Sunbury, PA 17801 | 570-449-3358 | bennergeoservices.com | jason@bennergeoservices.com | | | Jason Benner |
| BETTS | Betts Environmental Recovery | 361 Airport Square | Adel, GA 31620 | 2298965572 | www.bettsenv.com | mharnage@bettsenv.com | | | Madison Harnage |
| BISCHOFFS | Bischoffs Well Services | 10913 Greensboro Rd | Denton, MD 21629 | 410-479-0004 | | jfbsr1961@yahoo.com | | Mindy | John Bischoff, Sr. |
| BTE | Bob Taylor Engineering, Inc. | 22688 Three Notch Road | Lexington Park, MD 20653 | 301-862-4300 | | bte@bobtaylorengineering.com | | | |
| BRENNEMAN | Brenneman Well Drilling | PO Box 245 | Accident, MD 21520 | 301-746-8666 | www.brennemanwelldrilling.com | larry@brennemanwelldrilling.com | | Julie | Larry Brenneman |
| BWOOD | Brian Wood | 210 N 6th Street | Denton, MD 21629 | | | | | | Brian Wood |
| BROWN BROS | Brown Brothers Drilling | 497 Kirks Mill Rd | Nottingham, PA 19362 | 717-548-2500 | brownbrosdrilling.com | katie@mbwd.us | | Christine Brown | Mark Brown |
| BROWN'S | Brown's Well & Pump Service | 1300 Suburban Way | Crownsville, MD 21032 | 410-437-0237 | | daphnedbrown@msn.com | | | Ralph A Brown |
| BRUTE | Brute, LLC | 1830 Senseny Road | Berryville, VA 22611 | 856-850-6745 | | | | | |
| DAUBACH | Bryan Daubach PC | 32482 Discovery Drive | Easton, MD 21601 | 410-829-4455 | | daubachwater@verizon.net | | | Bryan Daubach |
| BUNDICK | Bundick Well & Pump Co | PO Box 15 | Painter, VA 23420 | 757-442-5555 | www.bundickwellpump.com | bundickwellpump@verizon.net | | Fallon | Jimmy Bundick |
| C R HUGO | C R Hugo Inc | 19327 Grist Mill Ln | Knoxville, MD 21758 | 703-795-6294 | | Chugo13@msn.com | | | Carl Hugo |
| CALVERT | Calvert Well Drilling/Allied | 871 Solomons Island Road | Prince Frederick, MD 20678 | 410-535-2804 | calvertwelldrilling.com | | | | Adam Santry |
| CARROLL WATER | Carroll Water LLC | 12047 Falls Road | Cockeysville, MD 21030 | 410-876-5100 | www.carrollwater.com | bsmith@carrollwater.com | | Tracy | Brian Smith |
| CASCADE DRILL | Cascade Drilling, L.P. | 22722 29th Drive SE, Ste. 228 | Bothell, WA 98021 | | | communications@cascade-env.com | | | |
| CASCADE REMEDIATION | Cascade Remediation Services LLC | 22722 29th Drive SE, Ste 228 | Bothell, WA 98021 | 732-296-6620 | cascade-env.com | cauditor@cascade-env.com | | Cheryl Auditor | Tim Smith |
| CASWELL | Caswell Testing & Water Systems | 21429-A York Road | Freeland, MD 21053 | 410-557-9355 | caswelltesting.com | caswelltesting@verizon.net | | | Kristy Whipperman |
| CECIL COUNTY | Cecil County Well Drilling | 236 Johnstown Rd | Elkton, MD 21921 | 410-392-3424 | | teresa1@gmail.com | | Teresa | Robert Difilippo |
| CENTRAL WATER | Central Water & Air Solutions | 250 Englar Rd - Ste #8 | Westminster, MD 21157 | 410-833-4815 | www.rainsoftcentralmaryland.com | Robert Breighner will send | | | Robert Breighner |
| CERTIFIED | Certified Environmental Drilling | PO Box 6538 | Charlottesville, VA 22906 | 434-979-0123 | www.certifiedenvdrilling.com | gtingley@embarqmail.com | | | Tim & Gary Tingley |
| CGC GEOSERVICE | CGC Geoservices, LLC | 1000 Dawson Drive | Newark, DE 19713 | 302-489-2398 | www.cgcgeoservices.com | stacy@cgcgeoservices.com | | | Stacy Ziegler |
| CHC WATER | CHC Water Services | 313 George Street | Chesapeake City, MD 21915 | 410-459-7939 | chcwaterservice.com | chcwater@outlook.com | | | Arnold Gilbert |
| CEM | Chesapeake Environmental Mgmt | 42 North Main St | Bel Air, MD 21014 | 410-893-9016 | www.cemscience.com | info@cemscience.com | | | Stephanie Hau |
| CHESAPEAKE | Chesapeake GeoSystems Inc | 6720 Fort Smallwood Rd | Baltimore, MD 21226 | 410-789-5020 | chesapeakegeo.com | info@chesapeakegeo.com | | Tiffany Grey | Lisa Blanchett |
| BWT | Chesapeake Water Treatment | 4 Nashua Ct - Ste #6 | Baltimore, MD 21221 | 443-460-0002 | rainsoftbaltimore.com | crawford2598@msn.com | | | |
| CLARKS | Clark Foundations LLC | 7900 Westpark Drive | McClean, VA 22102 | 571-564-1392 | www.clarkconstruction.com | jorge.montes@clarkfoundationsllc.com | | | |
| CLEAR WATER | Clear Water Conditioning | 7110 Old Stage Coach Ln | Snow Hill, MD 21863 | 443-735-5958 | | erichunter441@gmail.com | | Eric Hunter | Eric Hunter |
| CLINE & DUVALL | Cline & Duvall | 8093 Hillmark Ct | Frederick, MD 21704 | 301-663-6095 | | robert.cline56@gmail.com | | | Robert Cline |
| CONNELLY | Connelly & Associates | 1513 Tilco Drive | Frederick, MD 21704 | 301-696-8820 | www.connellyandassociates.com | sam@connellyandassociates.com | | Emily, Lisa | Samuel Connelly |
| COSDEN WATER | Cosden Water Supply Co Inc. | 3433 Chapman Rd | Randallstown, MD 21133 | 410-922-2900 | | cosdenwatertreatment@verizon.net | | | |
| CRUMPS | Crumps Well Drilling | 29126 Naylor Mill Rd | Salisbury, MD 21801 | 410-742-5829 | | crumpwelldrilling@hotmail.com | | | Ellis Crump |
| CULLIGANMD | Culligan of Maryland | 441 Defense Hwy, Ste J | Annapolis, MD 21401 | 410-862-2180 | www.midatlanticculligan.com | no licensing info online | | | |
| D&DADVANCE | D & D Advanced Water Technologies | 1710 Clay Hammond Road | Prince Frederick, MD 20678 | 443-532-1728 | | ddgribble@comcast.net | | | Donnie Gribble |
| D & S DRILLING | D & S Drilling Inc | 10500 Gateridge Rd | Cockeysville, MD 21030 | 410-667-0435 | | DandSdrilling@gmail.com | | | Daily Price |
| DAISEY'S | Daisey's Well Drilling | 24119 Daisey Rd | Frankford, DE 19945 | 302-238-7847 | daiseyswelldrilling.com | MARAccountsupport@hilbgroup.com | | Mary | Michael Daisey |
| KYKER | Dana Kyker Jr II | PO Box 861 | Westminster, MD 21158 | | | | | | Dana Kyker II |
| DANDELION | Dandelion Energy, Inc. | 333 N Bedford Road | Mount Kisco, NY 10549 | 833-436-4255 | https://dandelionenergy.com/ | matthew@dandelionenergy.com | | | Matt Rigatti |
| D TULL | David Tull Well Drilling & Pump Co | PO Box 806 | Easton, MD 21601 | 410-820-2080 | | | | | W. David Tull |
| D E ABBOTT | Dean E Abbott | 15060 Eastview Dr | Upperco, MD 21155 | 410-429-8998 | | | | | |
| DELMARVA | Delmarva Water Solutions | 1039 Fowler Ct | Dover, DE 19901 | 443-783-7331 | delmarvawatersolutions.com | jsensi@delmarvawatersolutions.com | | | John Sensi |
| DRILLSAFE | Drilling & Safety Consultants | 35 Saint Mary Ave | Manahawkin, NJ 08050 | 609-548-1983 | | artdrillsafe@comcas.net | | | Art Becker |
| DTCI | DTCI | 1315 Wiley Oak Dr | Jarrettsville, MD 21084 | 443-417-0211 | | dtci@verizon.net | | | Robert Atkinson |
| E2CR INC | E2CR Inc | 1405-A Parker Rd | Baltimore, MD 21227 | 410-737-9100 | www.e2cr.com | email@e2cr.com | | | Siva Balu |
| E E PRESTON | Earl E Preston Jr Inc | 4045-C Federal Hill Rd | Jarrettsville, MD 210 84 | 410-557-8100 | | | | | Earl Preston |
| EARTH DATA | Earth Data Inc | 131 Comet Dr | Centreville, MD 21617 | 410-758-8160 | www.earthdatainc.com | ckunkowski@earthdatainc.com | | Christine Kunkowski | Mark Williams |
| EARTH MATTERS | Earth Matters Inc | 4943 Looking Glass Trail | Denver, NC 28037 | 410-747-4400 | www.earthmattersinc.com | mwilley@earthmattersinc.com | | | Mike Willey |
| EAST COAST | East Coast Drilling, Inc. | 200 Century Parkway, Ste. B | Mount Laurel, NJ 08054 | 856-722-1111 | www.eastcoastdrill.com | jschaub@eastcoastdrill.com | | Julie | James Duffy |
| EASTERDAY | Easterday Wilson Well Drilling, LLC | 9265 Brown Church Rd | Mt Airy, MD 21771 | 301-829-1640 | www.easterdaywells.net | Michael.easterday@ew-water.com | | Michael | George Easterday |
| EAST WILSON | Easterday-Wilson Water Service, LLC | 9265 Brown Church Road | Mt. Airy, MD 21771 | | www.ew-water.com | Michael.easterday@ew-water.com | | Sandy | George Easterday |
| POWELL PUMP | Edward Powell Pump & Well Drilling | 17-B Mount Pleasant Dr | Ashton, PA 19014 | 610-459-1098 | powellpumpandwell.com | | | | David Powell |
| EICHELBERGERS | Eichelbergers Inc | 107 Texaco Rd | Mechanicsburg, PA 17050 | 717-766-4800 | www.eichelbergers.com | Jason@eichelbergers.com | | Julie | Jerry Rice |
| ENVIROPROBE | Enviroprobe Service Inc | 81 Marter Ave | Mount Laurel, NJ 08054 | 856-858-8584 | www.enviroprobe.com | info@enviroprobe.com | | | Tim Gallagher |
| EVERSOFT | Ever-Soft Water Conditioning | PO Box 297 | Maugansville, MD 21767 | 301-733-4896 | | eversoft88@gmail.com | | Tessa, Dawn | Steven Keener |
| R L FEEZER | Feezer Water Systems | 6321 Barnett Ave | Sykesville, MD 21784 | 410-795-1405 | www.rlfeezer.com | ljones@rlfeezer.com | | Linda | Linda Jones |
| FELDMANN | Feldmann Brothers Contractors Inc | 6 Vista Dr | Newark, DE 19711 | 302-266-0897 | | | | | |
| FINDLING | Findling Inc | 3401 Carlins Park Dr | Baltimore, MD 21215 | 410-367-1400 | www.findling.com | info@findlinginc.com | | | Amsalu Duressa |
| FOGLE'S | Fogle's Well Drilling LLC | 580 Obrecht Rd | Sykesville, MD 21784 | 443-609-4195 | www.foglesseptic.com | theresa@foglesinc.com | | | |
| FOGLES2 | Fogle's Well Pump & Water Treatment, LLC | 7229 Woodbine Rd | Woodbine, MD 21797 | 410-795-1535 | www.fogleswellpump.com | carrie@fogleswellpump.com | | Theresa | |
| G FORD | Ford Well Drilling LLC | P O Box 156 | Corriganville, MD 21524 | 301-724-2751 | | | | | Glenn Ford |
| FRAME | Frame Well Drilling | PO Box 1907 | Elkins, WV 26241 | 304-636-6025 | | framedrilling@frontier.com | | | Jack Frame |
| FRANK'S | Frank's Well Drilling | 8260 Crain Hwy | La Plata, MD 20646 | 301-934-4240 | www.frankswelldrillingservices.com | frankswelldrill@verizon.net | | | |
| FREE STATE | Free State Drilling Inc | 9310 Cabbage Run Rd | Frederick, MD 21701 | 301-845-0824 | www.freestatedrillinginc.com | fsdinc@starpower.net | | | |
| F & R INC | Froehling & Robertson Inc | 3015 Dumbarton Rd | Richmond, VA 23228 | 703-996-0123 | www.fandr.com | omerida@fandr.com | | | Sam Proctor |
| CROOKS | G E Crooks Well Service | 40545 Breton Knolls Court | Leonardtown, MD 20650 | 301-399-1326 | | george.crooks@comcast.net | | | George Crooks |
| B H GALLUP | Gallup Well Services, Inc. | 1616 Providence Rd | Towson, MD 21286 | 410-321-7244 | www.brucegallup.com | info@atlanticblue.net | | | Randall McGill |
| GEOLOGIC | Geologic Exploration, Inc | 176 Commerce Blvd | Statesville, NC 28625 | | | | | | |
| GEOMATRIX | Geomatrix Drilling Inc | 3345 Hollins Ferry Rd | Baltimore, MD 21227 | 410-242-9220 | | geomatrixdrilling@verizon.net | | | Paul Suit |
| GEOPROBE | Geoprobe Systems, Kejr, Inc. | 1835 Wall St | Salina, KS 67401 | 732-674-0912 | | rotondav@geoprobe.com | | Victor Rotonda | Lori Christensen |
| GEOSEARCH | Geosearch Inc | 11 Chocksett Rd | Sterling, MA 01564 | 978-348-1989 | www.geosearchinc.info | mbovenzi@geosearchinc.com | | | Matthew Bovenzi |
| GEOSERVICES | GeoServices Corp | 8001 Cryden Way | Forestville, MD 20747 | 301-967-1942 | | japjr@geoservicescorp.com | | Shirley Marsh | Joyce A. Padgett, Jr |
| GTA | Geo-Technology Associates Inc | 3445 Box Hill Corporate Center Drive | Abingdon, MD 21009 | 410-792-9446 | www.gtaeng.com | jware@gta.com | | | Timothy Madden |
| GADS | Geothermal and Drilling Service (NO | 1824C Ridge Road | Westminster, Maryland 21157 | 204.446.4063 | | Division of Chesapeake Geosystems | | | |
| GERLACH | Gerlach Pump and Well Service | 2037 Yew Court | St Leonard, MD 20685 | | | | | | George Gerlach |
| GINN | Ginn's Water Pump Services | 356 Winding Oak Drive | Hagerstown, MD 21740 | 301-824-7525 | www.ginnswaterpumps.com | waterpump@myactv.net | | Messaging service | Richard Ginn |
| GRIBBLE HI | Gribble Home Improvement and Well Service | 12024 Double Tree Lane | Lusby, MD 20657 | | |
gribbleshome.well@yahoo.com | | | Michael Gribble |
| Griffin | Griffin Dewatering, LLC | 5303 Clinton Drive | Houston, TX 77020 | | | Matt.Voorhees@griffindewatering.com | | | |
| GROUND ZERO | Ground Zero Field Services, LLC | 11100 Astarita Ave | Partlow, VA 22534 | 703-399-0020 | | gzoperations@verizon.net | | | Gene Burke |
| GES | Groundwater & Environmental Srvcs | 1350 Blair Dr - Ste #A | Odenton, MD 21113 | 732-919-0100 | www.gzenvironmental.com | blovenberg@gesonline.com | | | William Lovenberg |
| GROUNDWATER | Groundwater Systems Inc | 3159 Mary Etta Ln | Herdon, VA 20171 | 703-620-2040 | www.groundwatersystemsinc.com | | | | |
| GSE | GSE, Inc | 3795 Gordon Terry Parkway | Trinity | 256-350-9754 | www.gseinc.com | cratley@gseinc.com | | | |
| GREEN | GSI Mid-Atlantic, Green Services | PO Box 929 | Bel Air, MD 21014 | 410-569-9310 | www.gsimidatlantic.com | tniblett@gsimidatlantic.com | | | Tim Niblett |
| G JONES | Gurvis Jones Well Drilling | 1220 Prospect Mill Rd | Bel Air, MD 21015 | 410-838-6747 | www.gurvisjoneswelldrillinginc.com | drillmasterrocks@aol.com | | | Gurvis Jones |
| H & H DRILLING | H & H Well Drilling | 10236 Sharpsburg Pike | Hagerstown, MD 21740 | 301-842-3563 | www.handwell.com | Clif@handhwell.com | | | Robert Hill |
| HAD INC | H A D Inc | 9797 Benner Rd | Rittman, OH 44270 | 330-925-1000 | hadinc.com | kaylas@hadinc.com | | | John Hatfield |
| GREER | H J Greer Drilling Company Inc. | PO Drawer A | Gambrills, MD 21054 | 410-923-2506 | www.greerwellandpump.com | greerdrillingco@aol.com | | | Harold J Greer |
| HAGUE | Hague Quality Water of MD Inc | 814 East College Pkwy | Annapolis, MD 21409 | 410-757-2992 | www.haguewaterofmd.com | sales@haguewaterofmd.com | | | Ronald Edwards |
| HARFORD | Harford Well Service | 400 Cherry Hill Road | Street, MD 21154 | 410-652-7851 | www.harfordwellservice.com | shawnbangledorf@gmail.com | | | shawn Bangledorf |
| HARLEY | Harley Drilling & Hydrofrac Inc. | PO Box 160 | Walkersville, MD 21793 | 301-898-1068 | | pharley1122@hotmail.com | | | Perry Harley |
| HEPACO | Hepaco, LLC | 9335 Harris Corner's Parkway, Suite 220 | Charlotte, NC 28269 | | | | | | |
| HILLIS-CARNES | Hillis-Carnes Engineering | 10975 Guildford Rd - Ste #A | Annapolis Junction, MD 20701 | 410-880-4788 | www.hcea.com | bvandoren@hcea.com | | | William Carnes |
| HOFE | Hofe's Well Drilling | 3271 Butlers Chapel Rd | Martinsburg, WV 25401 | 304-754-3961 | | | | | Paul Hofe |
| HOME LAND | Home Land Environmental LLC | 1220 East Joppa Road, Bldg C, Suite 505 | Towson, MD 21286 | 443-995-5385 | www.homelandhealthyhomes.com | info@mdwellandseptic.com | | Jessica Harrington | Timothy Shotzberger |
| HSA INC | HSA Inc | 1818 New York Ave NE - #106 | Washington, DC 20002 | 202-269-6110 | | harish.senapathy@hsainc.biz | | | Harish Senapathy |
| HYDROWELLS | Hydro-Wells, LLC | 22910 Mount Ephraim Rd | Dickerson, Md 20842 | 301-393-7090 | | hydrowells@gmail.com | | | Javier Castro |
| INACTIVE | INACTIVE STATUS - No Insurance | | | | | | | | |
| INNOVAT | Innovative Environmental Technologi | 6071 Easton Rd | Pipersville, PA 18947 | 215-766-1603 | www.iet-inc.net | ellen.devlin@iet-inc.net | | | Michael Scalzi |
| J D JOHNSON | JD Johnson Well Drilling | P.O. Box 154 | Flintsone, MD 21530 | 301-777-WELL | | jimdjohns@atlanticbb.net | | | James Johnson |
| JEFF'S | Jeff's Quality Pump & Water Treatme | 12417 Mt Savage Rd NW | Mt Savage, MD 21545 | 301-264-4744 | | | | | Jeffrey McCullough |
| J D HYNES | John D Hynes & Associates, Inc. | PO Box 1541 | Salisbury, MD 21804 | 410-546-6462 | johndhynesandassociatesinc.com | jdhgeo@jdhynesinc.com | | Candy Loren | John D Hynes |
| JOHNSON | Johnson Well Service | 26647 Morganza Turner Rd | Mechanicsville, MD 20659 | 301-481-2660 | | | | | |
| JONES | Jones Well Drilling Inc | 3700 Rush Rd | Jarrettsville, MD 21084 | 410-692-6981 | www.joneswelldrilling.com | jterzano@carrollwater.com | | | David Kelly |
| WTM | Kalyani Environmental Solutions | 1201 Bernard Dr | Baltimore, MD 21223 | 410-536-4200 | | jnelson1941@gmail.com | | Diane Nelson | John Nelson |
| KELLER | Kellers North America | 100 Stickle Ave | Rockaway, NJ 07866 | 973-627-2100 | | jkaiser@moretrench.com | | | |
| KERSHNER'S | Kershner's Water Pump Services | 16952 Broadfording Rd | Hagerstown, MD 21740 | 301-790-3310 | | kwps@outlook.com | | | Donald Kershner |
| KEYSER-GARVER | Keyser Garver Well Drilling | 9125-B Bethel Rd | Frederick, MD 21702 | 301-662-1949 | | | | | Austin Garver |
| KIM | Kim Engineering, Inc | 1667 Knecht Avenue, Suite L | Baltimore, MD 21227 | 240-542-4238 | www.kimengineering.com | richkimes@msn.com | | | Keith Brown |
| KOHL BROS | Kohl Bros | PO Box 350 | Myerstown, PA 17067 | 717-866-2161 | kohlbros.com | | | | David Gettle |
| L&M PUMP | L & M Well & Pump Services Inc. | 112 Bullet Run Drive | Queenstown, MD 21658 | 410-303-5246 | www.877wellguy.com | esnative@msn.com | | | Daniel Milligan |
| L PRICE | Lacy Price's Pump Services | 495 Plank Rd | New Freedom, PA 17349 | 717-235-5127 | | | | | Lacey L Price, Jr |
| L CHRISTENSEN | Layne Christensen Co | PO Box 917 | Schoharie, NY 12157 | 518-295-8288 | www.layne.com | | | | David A Brown |
| LESTER WATER | Lester Water Inc | 920 South Union St | Kennett Square, PA 19348 | 610-444-4660 | lesterwater.com | dave@lesterwater.com | | | David McKeon |
| LIBERTY PURE | Liberty Pure Solutions Inc | 2824-R Paper Mill Rd | Phoenix, MD 21131 | 410-527-1024 | | denise@libertypure.com | | | Douglas Workman |
| LIFETIME | Lifetime Well Drilling | 24321 Shore Hwy | Denton, MD 21629 | 410-479-0397 | www.lifetimewelldrilling.com | lifetimewells@hotmail.com | | | Ben Wood |
| LONG GREEN | Long Green Energy Inc | 2109 Emmorton Park Rd - #107 | Edgewood, MD 21040 | 443-372-5759 | www.longgreenenergy.com | | | | Tom Ward |
| M & R SOIL | M & R Soil Investigations | 6604 Delilah Rd - Ste #3 | Egg Harbor City, NJ 08234 | 609-677-9797 | | | | | |
| M & W | M & W Drilling LLC | 8321 Oak Ridge Highway | Knoxville, TN 37931 | 865-690-0128 | mwdrillingllc.com | mharkness@mwdrillingllc.com | | | Mark Harkness |
| MARTINWATER | Martin Water Conditioning | | | 800-887-7555 | www.martinwater.com | no licensing info online | | | |
| MARTIN | Martin Water Conditioning | 740 East Lincoln Ave | Myerstown, PA 17067 | 717-786-7373 | www.martinwater.com | sreimold@martinwater.com | | | Dennis Martin Family |
| MWC | Maryland Water Cond Water Doctor | 10983-E Guildford Road | Annapolis Junction, MD 20701 | | | | | | |
| MAYNE | Mayne Well Drilling, LLC | 6501 Buffalo Rd | Mt Airy, MD 21771 | 301-829-2164 | | maynewelldrilling@gmail.com | | | Joseph Mayne |
| MB | MB Drilling LLC | 328 Stafford Forge Road | PO Box 423 West Creek, NJ 08092 | 609-294-1110 | Abecker@MBDrillingllc.com | | | | Art Becker |
| MDA | MDA Drilling Inc | 1008 Old Joppa Rd | Joppa, MD 21085 | 443-463-1279 | | kenmanos@comcast.net | | | Kenneth Manos |
| MEADOW BROOK | Meadow Brook Water Treatment | 7410 Rossville Blvd | Rosedale, MD 21237 | 410-882-3929 | | | | | |
| MERMAID | Mermaid Water II Inc | 8846 Rixlew Ln | Manassas, VA 20109 | 703-368-3008 | www.watersoftenersystems.com | | | | Bruce King |
| MERSINO | Mersino Dewatering | 10162 E. Coldwater Rd | Davison, MI 48423 | 810-658-3472 | www.mersino.com | jeremy.white@mersino.com | | Jeremy | Marcus Mersino |
| BARLOW'S | Michael Barlow Well Drilling Service, Inc. | 522 Underwood Ln | Bel Air, MD 21014 | 410-838-6910 | www.michaelbarlowwelldrilling.com | lacie@mbwd.us | | Lacie, Katie | Michael Barlow |
| GREER M | Michael Greer | 343 S. Riverside Drive | Crownsville, MD 21032 | | | | | | Michael Greer |
| MGRIBBLE | Michael Gribble | 417 Overlook Dr | Lusby, MD 20657 | | | | | | Michael Gribble |
| Mid-Atlantic | Mid-Atlantic Water Services | 14 Hudson Street | Annapolis, MD 21401 | 888-987-7638 | www.mawaterservices.com | no licensing information on website | | | |
| MIDDLETOWN | Middletown Well Drilling Co | PO Box 461 | Odessa, DE 19730 | 302-378-9396 | | | | | Joseph Borrell |
| MID-SHORE | Mid-Shore Well Drilling | PO Box 43 | Secretary, MD 21664 | 410-943-4474 | | | | | Dennis Todd |
| MILLER | Miller Enterprises | PO Box 670 | Augusta, WV 26704 | 304-822-4092 | www.millerdrillingwv.com | | | | Jeffrey G Miller |
| MODERN PUMP | Modern Pump & Equipment | PO Box 200 | Liverpool, PA 17045 | 717-444-2200 | modernpumpinc.com | | | | |
| MORETRENCH | Moretrench American Corporation | 100 Stickle Avenue | Rockaway, NJ 07866 | | www.moretrench.com | | | | Art Corwin |
| MORRISON | Morrison Excavating | 63 Gambers Corner Road | Duncannon, PA 17020 | | www.morrisonexc.com | lopez.e@comcast.net | | | Mike Rasch |
| MR WATER | Mr Water LLC | 411 Guilford Ave | Hagerstown, MD 21740 | 301-416-8331 | www.ifixh2o.com | info@ifixh2o.com | | | Scott Handy |
| MYERS | Myers Energy LLC | P O Box 27143 | Baltimore, MD 21230 | 800-947-5552 | blmyers.com | | | | David B Myers |
| NATIONAL WATER | National Water Service Inc | P O Box 138 | Ashton, MD 20861 | 301-854-1333 | nationalwaterservice.com | david@nationalwaterservice.com | | | David Rycke |
| NAVARRO | Navarro & Wright Consulting | 151 Reno Ave | New Cumberland, PA 17070 | | www.navarrowright.com | | | | Paul J Navarro |
| NONE | NEEDS DOCUMENTATION | NONE | NONE | NONE | | | | | |
| NEGLEY | Negley's Well Drilling | 16199 Cumberland Hwy | Newburg, PA 17240 | 717-532-9190 | www.negelys.net | Jolynn@negleys.net | | | Neil C Negley |
| NEXTERRA | NexTerra Subterranean Inc. | 189 Old York Road | New Cumberland, PA 17070 | | | KBBassett@nexterradrilling.com | | | |
| NORTHERN VA | Northern Virginia Drilling Inc | 11356 Industrial Rd | Manassas, VA 20109 | 800-845-4148 | www.nvdinc.com | info@nvdinc.com | | | Jack Miller |
| NYEG | NYEG Drilling | 5664 Mud MIll Rd | Brewerton, NY 13029 | 315-752-0110 | | | | | |
| ODYSSEY | Odyssey Environmental Services | 1111 Gap View Road | Dauphin, PA 17018 | 717-561-0013 | www.odysseyenv.com | tara@odysseyenv.com | | | Jason Miller |
| STEPHENS | Palmer Stephens Drilling Associates | 6619 Winsdor Mill Rd | Gwynn Oak, MD 21207 | 443-463-3172 | | psdrilling@gmail.com | | | Palmer Stephens |
| PARRATT-WOLFF | Parratt-Wolff Inc | PO Box 56 Fisher Rd | East Syracuse, NY 13057 | 800-782-7260 | www.pwinc.com | info@pwinc.com | | | Mike Ellingsworth |
| PATTON | Patton Pump Services | 6810 Cornell Rd | Middle River, MD 21220 | 410-592-8662 | | pattonwelldrilling@comcast.net | | | Daniel Patton |
| PATUXENT2 | Patuxent Pump & Well Inc | 44205 Airport View Drive | Hollywood, MD 20636 | 301-373-8727 | | jackie0623@md.metrocast.net | | linda davis | James M Johnson Jr |
| PENINSULA | Peninsula Water Conditioning Inc | 404 A Irl Lane | Fruitland, MD 21826 | 410-341-6500 | www.peninsulawater.com | service@peninsulawater.com | | | William Porter, III |
| PERFORMANCE | Performance Water Systems | 29519 Canvasback Dr | Easton, MD 21601 | 410-770-4977 | https://performancewatersystems.com | pbroxson@pwsco.net | | | Mark Stanely |
| PEMS | Phelps Water Company | PO Box 117 | Edgewater, MD 21037 | 410-956-2522 | www.phelpswater.com | phelpswaterco@aol.com | | | Robert Kiehne |
| PHILLIPS & SON | Phillips & Son Drilling Inc | 2624 Kaetzel Rd | Knoxville, MD 21758 | 301-432-6669 | www.phillipsandsondrilling.com | phillipssondrill@aol.com | | | Franklin E Phillips |
| PIEDMONT | Piedmont Well Services LLC | P.O. Box 1787 | Sykvesville, MD 21784 | 240-924-8081 | | piedmontwellservice@outlook.com | | | |
| PIERSON'S | Pierson's Well & Pump Services | 11169 Webb Farm Rd | Greenwood, DE 19950 | 302-422-9482 | | | | | |
| POWELL | Powell Drilling Services | PO Box 545 | Chester Heights, PA 19017 | 610-459-1037 | www.powelldrillingandsevices.com | | | | David Powell |
| PREMIER | Premier Water Service | 4429 Mountain Road | Pasadena, MD 21123 | 410-437-3957 | www.premierwaterservices.com | rpc303@gmail.com | | | Robert Copsey |
| QUALITY | Quality Well & Septic Services | 520 Clay Hammond Rd | Prince Frederick, MD 20678 | 443-486-2584 | | dalrymple_roxanne09@comcast.net | | | Gary Dalrymple |
| QUEENSTOWN | Queenstown Well Drilling | 6454 Main St | Queenstown, MD 21658 | 410-827-7794 | | | | | |
| R & G WATER | R & G Water Systems | 1009 South Main St | Manchester, MD 21074 | 410-239-0700 | www.rgwater.com | info@rgwater.com | | Georgina Roos VP | Ricky Roos |
| SEWARD | R J Seward & Son | 120 Ebenezer Church Rd | Townsend, DE 19734 | 302-378-9414 | | | | | Timothy Seward |
| HARRELL'S | R W Harrell's Pump Service | 18809 Burnside Bridge Rd | Sharpsburg, MD 21782 | 301-432-8004 | www.harrellsservices.com | contact@harrellsservices.com | | | Travis Harrell |
| R MAYNE | Ralph Mayne Well Drilling | 17024 Hardy Rd | Mt Airy, MD 21771 | 301-829-0702 | | | | | |
| BRAND | Randolph K. Brand | 1511 Hidden Bridge Dr | Mt Pleasant, SC 29464 | | | | | | |
| RAUCH | Rauch Inc. | 106 North Harrison Street | Easton, MD 21601 | -410-770-9081 | https://rauch-inc.com/ | sue@raucheng.com | | | Sue Waite |
| BARBER | Rick Barber Well Service | 2928 Grier Nursery Rd | Forest Hill, MD 21050 | 410-879-3219 | www.pentairprodealer.com | cbarber1@zoominternet.net | | Cindy | Rick Barber |
| RORRER | Rorrer Well Drilling Inc | 450 Industrial Dr | Christiansburg, VA 24073 | 540-552-6029 | www.rorrerdrilling.com | erorrer@rorrerdrilling.com | | | Eric Rorrer |
| S&L WATER | S&L Water Solutions LLC | 14109 Cearfoss Pike | Hagerstown, MD 21740 | | | | | | |
| S2C2 INC | S2C2 Inc | 5 Johnson Dr - Ste #12 | Raritan, NJ 08869 | 908-253-3200 | www.s2c2inc.com | tmorgan@s2c2inc.com | | | |
| SANO | Sano Drilling Inc. | 12 White Pine Drive | Sewell, NJ 08080 | | | | | | |
| SAUL | Saul Environmental Services | 1908 Wildwood Ave | Parkville, MD 21234 | 410-967-8321 | | swsaul@gmail.com | | | Stephen Saul |
| SCHAGRIN | Schagrin Gas Co | PO Box 427 | Middletown, DE 19709 | 302-378-2000 | schagringas.com | | | | E B Levinson |
| SCHOFIELD | Schofield Well Drilling | PO Box 3 | Piney Point, MD 20674 | 301-994-1900 | | | | | Earle Schofield III |
| ROGERS | Scott Rogers | 3426 Pike Ridge Rd | Edgewater, MD 21037 | 800-935-5654 | http://rogersandsonswellservice.com | rogersdawn2@aol.com | | | Scott Rogers |
| SEBRING | Sebring Operations | PO Box 1801 | Berlin, MD 21811 | | | mseb242689@aol.com | | | Michael Sebring |
| SEYMOUR | Seymour Well Services LLC | 6895 Bellevue Road | Royal Oak, MD 21662 | | | awellguy@gmail.com | | | John Seymour |
| SGS | SGS North America | PO Box 423 | West Creek, NJ 08092 | 609-294-1110 | www.sgs.com | | | | Sergio Marchionne |
| SHANNAHAN | Shannahan Artesian Well Co | PO Box 730 | St Michaels, MD 21663 | 410-745-5071 | www.shannahanwell.com | dawn@shannahanwell.com | | | Mike Hall |
| SHARPCULLIGAN | Sharp Water Culligan - Shannahan | 129 Columbia Road | Salisbury, MD 21801 | 410-202-2410 | www.sharpwater.com | djshannahan@sharpwater.com | | | D J Shannahan |
| SHARP WATER | Sharp Water Culligan Shannahan Wate | 129 Columbia Dr | Salisbury, MD 21801 | 800-439-3853 | | | | | |
| SHORE SERVICES | Shore Services Inc | 16363 Staytonville Rd | Lincoln, DE 19960 | 302-841-4625 | | genedec7@gmail.com | | | |
| SMITH | Smith & Smith | 3191 Deths Ford Road | Darlington, MD 21034 | | | no information | | | |
| SMW SALES | SMW Sales | 11432 Trussum Pond Rd | Laurel, DE 19956 | 302-875-7958 | https://smwsales.net | susan@smwsales.com | | | Richard Carmine |
| SOIL LAND | Soil & Land Use SaLUT-TLB | 1818 New York Ave NE Ste 231 | Washington, DC 20002 | | www.salut-tlb.com | tbrown@tlbinc.net | | | Thomas Brown |
| SOLUTIONS | Solutions in Aqua Services | 5257 Buckeystown Pike - #115 | Frederick, MD 21704 | 301-769-6939 | www.soltionsinaqua.com | gbittner@solutionsinaqua.com | | | Gene Bittner |
| SOMERSET | Somerset Well Drilling | PO Box 67 | Westover, MD 21871 | 410-651-3721 | www.somersetwell.com | drilling@somersetwell.com | | Melissa | Thomas Hall |
| SPERRY | Sperry Drilling Services | 1023 Cumberland Hwy | Berlin, PA 15530 | 814-267-3487 | www.sperrydrillinginc.com | | | | Judith A Bird |
| STARR HYDRO | Starr Hydro Inc | 33 Clinton Rd | Sterling, MA 01564 | 987-422-3341 | | | | tracy | |
| SWOOD | Stephen P Wood | 24321 Shore Hwy | Denton, MD | | | | | | Stephen Wood |
| STERLING | Sterling Quality Water | 835 Baltimore Blvd - Unit A | Westminster, MD 21157 | 410-848-1025 | www.sterlingqualitywater.net | | | | Chuck Sterling |
| SSAUL | Steve Saul | 1908 Wildwood Ave | Parkville, MD 21234 | | | | | | |
| STONER | Stoner Enterprises | 5201 Williamson Rd | Roanoke, VA 24012 | 301-797-0311 | | cullligan@stonerwater.com | | | John P. Stoner |
| STONER2 | Stoner Enterprises Culligan | 501 Maryland Ave | Hagerstown, Md 21740 | | www.culliganstoner.com | pstonerjr@stonerwater.com | | | John P Stoner |
| STONER QUALITY | Stoner Quality Water Inc | 273 Culligan Road | Friedens, PA 15541 | 301-777-3611 | | | | Margie Kelly | |
| SUBSURFACE | Subsurface Technologies | 40 Stone Castle Road | Rock Tavern NY | 757-487-7978 | www.subsurfacetech.com | twarner@pump-engineering.com | | | T Warner |
| SUMMIT | Summit Drilling, LLC | 81 Chimney Rock Rd | Bridgewater, NJ 08807 | 908-722-4266 | www.summitdrilling.com | DDillon@summitdrilling.com | | | Rick Davis |
| SUSSEX | Sussex Irrigation Company | 11323 Trussum Pond Rd | Laurel, DE 19956 | 302-875-3856 | www.sussexirrigation.com | | | | Barney Foxwell |
| SYDNOR | Sydnor Hydro Inc | PO Box 27186 | Richmond, VA 23261 | 804-643-2725 | www.sydnorhydro.com | personnel@sydnorhydro.com | | | Jay Royall |
| TALON | Talon Drilling Corp | 100 Lexington Ave | Trenton, NJ 08618 | 609-538-0580 | talondrillingcompany.com | info@talondrillingcompany.com | | | Jeff M Jaworski |
| TAPP | Tapp Water Systems | two addresses | | 410-956-8277 | www.tappwatersystems.com | no licensing info online | | | |
| TERRA | Terra Sonic | 27825 State Route 7 | Marietta, OH 45750 | 740-374-6608 | | wtk@terrasonicinternational.com | | | |
| TERRATEST | Terra Testing, Inc. | 260 Meadowlands Blvd | Washington, PA 15301 | 724-746-9100 | www.terratestinginc.com | ahajek@terratestinginc.com | | Angela Hajek | Angela Hajek |
| TERRACON | Terracon Consultings, Inc. | 10841 S. Ridgeview Road | Olathe, KS 66061 | (717) 636-5291 | Terracon.com | jj.mehalick@terracon.com | | | |
| TERRY | Terry Environmental Services, Inc. | P.O. Box 25 | Summerville, SC 29484 | 843-873-8200 | | randykbrand@gmail.com | | | |
| R B BALTER | The Robert B Balter Company | 18 Music Fair Rd | Owings Mills, MD 21117 | 410-363-1555 | balterco.com | info@balterco.com | | | |
| FISHER | Thomas D Fisher | 12239 Greensboro Rd | Greensboro, MD 21639 | 410-482-8754 | | tumus2@comcast.net | | | Thomas Fisher |
| TIDEWATERUTIL | Tidewater Utilities, Inc. | 1100 South Little Creek Road | Dover, DE 19901 | | | | | Steve Draper | |
| TIDEWATER | Tidewater, Inc. | 6625 Selnick Dr - Ste #A | Elkridge, MD 21075 | 410-540-8700 | www.tideh20.net | info@tideh2o.net | | | Jesus Garcia |
| TODD | Todd Environmental Associates | PO Box 296 | Fallston, MD 21047 | 410-877-9770 | | tthropp@gmail.com | | | Peggy Thropp |
| TRC ENGINEERS | TRC Engineers Inc | 16000 Commerce Pkwy - Ste #B | Mt Laurel, NJ 08054 | 856-273-1224 | www.trcsoltions.com | | | | Christopher P Vincze |
| TRICOUNTY | Tri-County Pump Services, Inc. | 6711 Old National Pike | Boonsboro, MD 21713 | | | | | | |
| TWIN OAKS | Twin Oaks Contracting | 324 Shady Ln | Pasadena, MD 21222 | 410-255-1401 | | | | | Macarthur Johns |
| UNI-TECH | Uni-Tech Drilling | PO Box 407 | Franklinville, NJ 08322 | 856-694-4200 | www.unitechdrilling.com | eugenestichlerunitech@gmail.com | | | Nicholas Thies |
| WALKER | Walker-Hill Environmental, Inc. | P O Box 1147 | Foxworth, MS 39483 | 601-736-3500 | | | | | |
| WALTON CORP | Walton Corporation | PO Box 1097 | Newark, DE 19715 | 302-737-6480 | | | | | |
| W GEORGE INC | Warren George Inc | PO Box 413 | Jersey City, NJ 07303 | 201-433-9797 | www.warrengeorge.com | carlos@warrengeorge.com | | | Anthony Tirro |
| MD WATER | Water Doctor | 10983 Guilford Rd, Ste. E | Annapolis Junction, MD 20701 | 877-776-8220 | www.water-doctor.com | vburtis@water-doctor.com | | Ted Geppert | Ted Geppert |
| WATER SYSTEMS | Water Systems Services Inc | 32251 Sugar Maple Ln | Frankford, DE 19945 | 302-732-1490 | | watsysinc@aol.com | | | Mark Mills |
| WATER WELL | Water Well Solutions | P O Box 3355 | Mechanicsville, VA 23116 | | | | | John O'Dell | |
| WATERGUYS | Waterguys | PO Box 31 | Upperco, MD 21155 | 443-507-6366 | | waterguysmd@hotmail.com | | | John Hallsmith |
| WATERTECH | Watertech, LLC | 16881 Heritage Hills Ln | Henderson, MD 21640 | 410-739-8908 | | Wtrtech@comcast.net | | | John Herbert |
| WATSON-JOHNSON | Watson & Johnson Well Drilling | PO Box 37 | Great Mills, MD 20634 | 410-829-5880 | marylandwell.com | watson.briane@gmail.com | | | Brian Watson |
| WATSON | Watson Pump and Well Drilling Inc | PO Box 37 | Great Mills, MD 20634 | | | info@MarylandWell.com | | | Brian Watson |
| watplumb | Watson's Plumbing Well | | | | watsonsplumbing.com | No Licensees | | | |
| WEBER | Wayne C Weber Well Drilling | 32815 DuPont Blvd | Dagsboro, DE 19939 | 302-732-6060 | | info@webberwelldrilling.com | | | Andrew Webber |
| HARLEY WELL | Wayne E Harley Well Drilling | 4019 Baptist Rd | Taneytown, MD 21787 | 410-259-1221 | | | | | Wayne Harley |
| WAYNES | Waynes Water N Wells Inc | 19139 Garrett Hwy | Oakland, MD 21550 | 301-387-7181 | wayneswells.com | water1@wayneswells.com | | Tina | Wayne Bolden |
| AWEBER | Weber Well Drilling | 34583 Frog Farm Lane | Dagsboro, DE 19939 | 302-732-6060 | | | | | Andrew Weber |
| WATERCHECK | Well Man Water Check LLC | P. O. Box 770 | Mayo, MD 21106 | | www.watercheck.net | dgilliam@watercheck.net | | Dawn Gilliam | Art Gilliam |
| WELL WATER | Well Water Services | 1908 Rencos Way | Forest Hill, MD 21050 | 410-557-0330 | www.wellwaterservices.net | wellwaterservices@gmail.com | | Carol | Damon Dwelley |
| WWS | Well Water Solutions | P O Box 3355 | Mechanicsville VA | | www.wellwatersolutions.net | No Licensees | | | |
| WENGER | Wenger Services LLC | 535 Honda Road | Littlestown, PA 17340 | 717-640-6442 | www.wengerservices.com | wengerservices@gmail.com | | | Glenn Wenger |
| WEST | West Well Pump Services | 24307 Red Blaze Dr | Damascus, MD 20872 | 301-482-1227 | www.westwellservice.com | westwellpumpservice@gmail.com | | Cindy | John West |
| WESTMINSTER | Westminster Rotary Drilling | PO Box 861 | Westminster, MD 21158 | 410-848-4170 | | | | | Ronald Kyker |
| WMBISCHOFF | William Bischoff, Sr | 11401 Greensboro Road | Denton, MD 21629 | | | | | | William Bischoff |
| REICHART | William W Reichart Inc | 1772 Baltimore Pike | Hanover, PA 17331 | 717-632-2249 | | billreichart@reichartwelldrilling.com | | | William Reichart |
| WILSONS | Wilsons Well & Pump | 8389 Elm Road | Millersville, MD 21108 | 410-647-6802 | www.wilsonwellandpump.com | robo6802@verizon.net | | | Robert Wilson |
| WINSLOW | Winslow Pump & Well Services | PO Box 521 | Hollywood, MD 20636 | 301-373-2200 | | contact@winslowpumpandwell.com | | Kelley Winslow | Jackline Winslow |
| WOOSTER | Wooster Drilling Co | 10930 Bridle Path Cir | Waldorf, MD 20601 | 301-843-7384 | | | | | Larry Wooster |