Licensed Irrigation Contractors in Washington
750 companies and license holders with a current, active Washington license, listed longest-licensed first. Source: official state records, refreshed 2026-08-25.
Rain Tech Llc20+ yrs
Tumwater, WA 98511
RAINTL*944BA · licensed since 2006
Kooy's Irrigation INC3+ yrs
Quincy, WA 98848
KOOYSII785US · licensed since 2023
Al'S Sprinkler Co Inc25+ yrs
Covington, WA 98042
ALSSPCI997BC · licensed since 2001
M-K Waterwell Drilling Inc7+ yrs
Dallesport, WA 98617
MKWATWD822RR · licensed since 2019
H2o Management Services Inc3+ yrs
Shelton, WA 98584
H2OMAMS779BD · licensed since 2023
Alternate Rain Company20+ yrs
Olympia, WA 98501
ALTERRC943BE · licensed since 2006
Blue Mtn Backflow Testing Llc9+ yrs
Milton Freewater, WA 97862
BLUEMMB831BF · licensed since 2017
River City Sprinkler38+ yrs
Spokane, WA 99208
RIVERS*120BG · licensed since 1988
Aqua Pumps & Well Drilling Inc17+ yrs
Port Angeles, WA 98363
AQUAPPW910BH · licensed since 2009
Rob'S Sprinkler Svc & Inst Inc22+ yrs
Lakewood, WA 98498
ROBSSSS969BZ · licensed since 2004
Skone Irrigation Inc3+ yrs
Warden, WA 98857
SKONEII773WL · licensed since 2023
Bayview Pumps Inc3+ yrs
Port Hadlock, WA 98339
BAYVIPI78598 · licensed since 2023
Skone Irrigation Inc3+ yrs
Warden, WA 98857
SKONEII777BL · licensed since 2023
Bayview Pumps Inc3+ yrs
Port Hadlock, WA 98339
BAYVIPI785R8 · licensed since 2023
Jim Purswell'S Pump Co Inc4+ yrs
Hermiston, WA 97838
JIMPUPP785KC · licensed since 2022
Jim Purswell'S Pump Co Inc4+ yrs
Hermiston, WA 97838
JIMPUPP7852C · licensed since 2022
Columbia Pump Inc3+ yrs
Pasco, WA 99301
COLUMPI784R2 · licensed since 2023
Columbia Pump Inc3+ yrs
Pasco, WA 99301
COLUMPI78492 · licensed since 2023
Western Oilfields Supply Co28+ yrs
Bakersfield, WA 93303
WESTEOS025BN · licensed since 1998
Nicholson Drilling Inc3+ yrs
Port Orchard, WA 98366
NICHODI783KB · licensed since 2023
Grays Harbor Equipment Co Inc3+ yrs
Aberdeen, WA 98520
GRAYSHE780R8 · licensed since 2023
B&C Well Drlng & Pump Srvs Inc3+ yrs
Bellingham, WA 98226
BCWELWD7891H · licensed since 2023
Pump Division3+ yrs
Spokane Valley, WA 99212
PUMPDD*773WT · licensed since 2023
Pump Division3+ yrs
Spokane Valley, WA 99212
PUMPDD*771BT · licensed since 2023
Aquarius Pump Co Inc3+ yrs
Seabeck, WA 98380
AQUARPC778BR · licensed since 2023
Washington Water Srvc Co3+ yrs
Gig Harbor, WA 98332
WASHIWS774WO · licensed since 2023
Washington Water Srvc Co3+ yrs
Gig Harbor, WA 98332
WASHIWS778BO · licensed since 2023
General Pump Mechanics Inc3+ yrs
Naches, WA 98937
GENERPM777WE · licensed since 2023
General Pump Mechanics Inc3+ yrs
Naches, WA 98937
GENERPM771BE · licensed since 2023
Steves Pump & Well Service INC3+ yrs
Port Orchard, WA 98366
STEVEPW7809N · licensed since 2023
A & A Well Drilling Inc3+ yrs
Lopez Island, WA 98261
WELLD*W772BT · licensed since 2023
Steves Pump & Well Service INC3+ yrs
Port Orchard, WA 98366
STEVEPW780RN · licensed since 2023
A & A Well Drilling Inc3+ yrs
Lopez Island, WA 98261
WELLD*W778WT · licensed since 2023
L W Smith Pump Service Inc3+ yrs
Pasco, WA 99301
LWSMIWS772BU · licensed since 2023
L W Smith Pump Service Inc3+ yrs
Pasco, WA 99301
LWSMIWS772WU · licensed since 2023
Green Frog Irrigation Llc2+ yrs
Shelton, WA 98584
GREENFI767B4 · licensed since 2024
Gresham Pump & Drilling Inc13+ yrs
Poulsbo, WA 98370
GRESHPD877W8 · licensed since 2013
Apb Irrigation Services Llc1+ yrs
Everett, WA 98203
APBIRIS762PP · licensed since 2025
Richardson Well Drlng Co Inc8+ yrs
Tacoma, WA 98448
RICHAWD820CE · licensed since 2018
Outwest Contracting & Elec3+ yrs
Napavine, WA 98565
OUTWECE776TL · licensed since 2023
Mauldin'S Well Service Inc3+ yrs
Friday Harbor, WA 98250
MAULDWS785UD · licensed since 2023
Mauldin'S Well Service Inc3+ yrs
Friday Harbor, WA 98250
MAULDWS785DD · licensed since 2023
Outwest Contracting & Elec3+ yrs
Napavine, WA 98565
OUTWECE776CL · licensed since 2023
Precision Water & Light Llc0+ yrs
Lake Stevens, WA 98258
PRECIWL745CE · licensed since 2026
Soundview Landscape & Irr Inc0+ yrs
Kenmore, WA 98028
SOUNDLI753R3 · licensed since 2026
French Landscape Irrigatn Llc19+ yrs
Edmonds, WA 98026
FRENCLI936CF · licensed since 2007
Shane's Diversified Pump SVC4+ yrs
Yakima, WA 98904
SHANEDP780C4 · licensed since 2022
Irrigators Inc3+ yrs
Moses Lake, WA 98837
IRRIGI*773WE · licensed since 2023
Irrigators Inc3+ yrs
Moses Lake, WA 98837
IRRIGI*771BE · licensed since 2023
Alpine Sprinklers Inc28+ yrs
Issaquah, WA 98027
ALPINSI029CJ · licensed since 1998
Greenleaf Landscaping 1 Inc29+ yrs
Tacoma, WA 98409
GREENL1034CM · licensed since 1997
Irrigation Tech & Control Inc1+ yrs
East Wenatchee, WA 98802
IRRIGTC755WW · licensed since 2025
Irrigation Tech & Control Inc1+ yrs
East Wenatchee, WA 98802
IRRIGTC759BW · licensed since 2025
Precision Electric & Irrig Llc2+ yrs
Othello, WA 99344
PRECIEI760C1 · licensed since 2024
Gemmell'S Machine Works Inc3+ yrs
Dayton, WA 99328
GEMMEMW778UC · licensed since 2023
Pilchuck Irrigation Llc19+ yrs
Marysville, WA 98270
PILCHIL936C3 · licensed since 2007
A & A Pump Sales Llc2+ yrs
The Dalles, WA 97058
PUMPS*P767TB · licensed since 2024
Westland Drilling & Constr Llc1+ yrs
Moses Lake, WA 98837
WESTLDC754C7 · licensed since 2025
Moerke & Sons Pump & Drlng Inc24+ yrs
Chehalis, WA 98532
MOERKSP981DA · licensed since 2002
Shane's Diversified Pump SVC4+ yrs
Yakima, WA 98904
SHANEDP780T4 · licensed since 2022
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About irrigation contractors in Washington
In Washington, this trade requires a current state credential — every listing here shows as active in the official record. A license proves accountability (an exam, a bond, a checkable record), not craftsmanship. Confirm status on the official state portal before you hire.