wa-public-works-records

WHATCOM COUNTY PUBLIC UTILITY DISTRICT — public works contracts

543 public works projects and 780 intents to pay prevailing wages name WHATCOM COUNTY PUBLIC UTILITY DISTRICT as the awarding agency, in the L&I file of Oct 1, 2026. L&I classes it as: Public Utility District.

Bidding, hiring a subcontractor or checking a competitor? A dated public works report ($19) on one contractor — or an agency's awards, every month.

Intents filed, by year

2017201820192020202120222023202420252026
35394552804240374373

Latest contracts (200)

Intent filedContractPrime contractorAmount declared
Sep 16, 2026Emergency Unick Line Rebuild - East Leg
EULR-001
P & P EXCAVATING LLC$10,000,000
Sep 13, 2026Emergency Unick Line Rebuild - Electrical
EULR-005
MILLS ELECTRIC$700,000
Sep 9, 2026Whatcom County PUD 115K Transmission Trimming
WCP1102F
XYLEM I LLC$44,950
Sep 8, 2026Emergency Unick Line Rebuild - HDPE Fusion
EULR-004
HD FOWLER COMPANY$10,000,000
Sep 8, 2026(title withheld)
26-039
LEN HONCOOP GRAVEL INC$6,400
Sep 8, 2026RW-M-2 Plant No. 2 East Settling Pond Cleaning
RW-M-2
LEN HONCOOP GRAVEL INC$88,209
Sep 2, 2026Easement and Plant Mowing
26-034
J T I COMMERCIAL SERVICES LLC$9,665
Sep 1, 2026Emergency Unick Line Rebuild - Center Leg
EULR-002
INTERWEST CONSTRUCTION INC$10,000,000
Aug 26, 2026Plant 2 Operations Area Asphalt Seal Coat
082026
WESTERN REFINERY SERVICES INC$8,650
Aug 17, 2026Emergency Unick Line Rebuild
Emergency Unick Line Rebuild
P & P EXCAVATING LLC—
Aug 14, 2026Emergency Unick Line RebuildWESTERN REFINERY SERVICES INC—
Aug 10, 2026Plant 2 Window Replacement
26-019
PACIFIC FACILITY SOLUTIONS INC$28,525
Aug 3, 2026Whatcom County River Intake Pump
Signed Contract
PUMPTECH LLC$27,962
Jul 31, 2026Test pits at Plant 2
26-035
LEN HONCOOP GRAVEL INC—
Jul 23, 2026Imhoff Hydrant Replacement
25-035
WESTERN REFINERY SERVICES INC$22,781
Jul 14, 2026Nooksack River Plant #1 Intake Facility Sediment Removal
5042
INTEGRATED UNDERWATER SRVS LLC$104,404
Jul 9, 2026(title withheld)
Douglas Rd
P & P EXCAVATING LLC—
Jun 26, 2026WPUD HDPE Basin Repair
26-031
WESTERN REFINERY SERVICES INC$93,710
Jun 24, 2026Brush Clearing Slater Road 1-5 Transmission Towers
260110-1
J T I COMMERCIAL SERVICES LLC$835
Jun 18, 2026RW-33 Meter Relocation
RW-33
LEN HONCOOP GRAVEL INC$471,098
Jun 18, 2026URGENT - Repair admin bathroom urinal at Plant 2
26-032
PACIFIC FACILITY SOLUTIONS INC$1,224
Jun 12, 2026Brush Cutting for Intertie Area
26-027
NORTHWEST BRUSH CUTTING LLC$2,725
May 29, 2026Test Pits for Douglas Rd
26-025
LEN HONCOOP GRAVEL INC—
Apr 28, 2026Nooksack River Plant #2 Underwater Inspection
5041
INTEGRATED UNDERWATER SRVS LLC$29,409
Apr 27, 2026PLANT 2 INTAKE PUMP #3
26-016
Delta Electric Motors, Inc.$16,039
Apr 22, 20262026 Landscape Maintenance - Admin Building
26-01
NATIONAL FACILITY CONTR LLC$4,665
Apr 20, 2026HVAC Maintenance Services for WHatcom PUD
HVAC26
WESTERN MECHANICAL & CONTROLS$3,301
Apr 17, 2026Plant 1 Roof Leak
26-013
HYTECH ROOFING INC$765
Mar 25, 2026Northgate Potable Facility
26-008
WESTERN REFINERY SERVICES INC$97,865
Mar 23, 2026Wreck Out And Replace Fiber Optic Cable
25-040
SOUND DRILLING LLC$40,735
Mar 6, 2026Whatcom PUD Emergency Fiber Repair � Church Road
IS-15
SOUND DRILLING LLC—
Feb 25, 2026Plant 2 intake road turnout
Plant 2 intake road turnout
P & P EXCAVATING LLC$20,275
Jan 12, 20262025 Annual Janitorial
Work Order no.11
Whatcom Janitorial, LLC$18,900
Jan 12, 20262024 Annual Janitorial
23-002
Whatcom Janitorial, LLC$17,160
Jan 12, 20262026 Annual Janitorial
Work Order no.11
Whatcom Janitorial, LLC$18,900
Jan 6, 2026Repair plant 2 intake building gravel
Plant 2 Intake Building Gravel
P & P EXCAVATING LLC$19,958
Dec 15, 2025Plant 2 Gate Maintenance 2026
EST#2011
GATEWAY CONTROLS INC$1,208
Dec 12, 2025Remove Fiber Optic Cable
25-039
SOUND DRILLING LLC$9,661
Nov 14, 2025(title withheld)
82489
SMITH MECHANICAL INC$1,547
Nov 11, 2025E6 Allans Road Transmission Line Improvements
E6
SALISH CONSTRUCTION COMPANY$140,545
Nov 7, 2025PUD Waterline Pothole
25155
LEN HONCOOP GRAVEL INC—
Nov 5, 2025FLOOR SERVICE
NONE
Floor Guy$2,800
Sep 15, 2025Emergency Work
N/A
POTELCO INC$12,550
Sep 9, 2025Imhoff Hydrant Replacement
25-035
WESTERN REFINERY SERVICES INC$22,781
Aug 25, 2025RW-M22 P2 Basin Cleaning
1515
INTERWEST CONSTRUCTION INC$113,152
Aug 20, 2025178690 Whatcom PUD
25-0049
GUARDIAN SECURITY SYSTEMS INC$2,500
Aug 15, 2025Buchanan Loop - Install Meter
25-033
LEN HONCOOP GRAVEL INC$21,000
Aug 15, 2025Douglas Road Vault
25-037
LEN HONCOOP GRAVEL INC$55,400
Aug 15, 2025Bender Park Tower Demolition
25127
LEN HONCOOP GRAVEL INC$15,000
Aug 8, 2025Van Wick Road Tree Trimming
Van Wick Road Tree Trimming
XYLEM 1 LLC$23,400
Jul 31, 2025Plant 2 Asphalt Repair and Seal Coat
072525
WESTERN REFINERY SERVICES INC$23,011
Jul 23, 2025Whatcom PUD Water Treatment Plant #1
RW-M-15
MODERN PAINTING GROUP LLC$42,214
Jul 3, 2025Nooksack River Intake Facility Sediment Removal
7005
INTEGRATED UNDERWATER SRVS LLC—
Jun 20, 2025INTAKE MOTOR RECONDITION
25-029
Delta Electric Motors, Inc.$12,000
Jun 17, 2025Imhoff Road Valve Locating
25-028
WESTERN REFINERY SERVICES INC$9,085
Jun 11, 20252025 Annual HVAC
25-002
SMITH MECHANICAL INC$11,840
Jun 3, 2025D Station Flow and Control
D Station Flow and Control
P & P EXCAVATING LLC$1,093,728
May 23, 2025Water Line Installation Homefire Logs
25-021
WESTERN REFINERY SERVICES INC$18,670
May 23, 2025Imhoff Road Guzzling
25-022
WESTERN REFINERY SERVICES INC$4,452
May 21, 2025Access Rd and ROW Clearing
05062025
J T I COMMERCIAL SERVICES LLC$15,796
Apr 28, 2025Administrative Office Roof Replacement
n/a
CREATIVE ROOF SOLUTIONS LLC$48,715
Mar 17, 2025171762 - PUD Dist #1 Fire Alarm System Testing
PO # 25-0014
GUARDIAN SECURITY SYSTEMS INC$2,580
Mar 10, 2025Plant 1 Gravel Repair
Plant 1 Gravel repair
P & P EXCAVATING LLC$21,162
Feb 18, 2025Hose Replacement
Estimate 202453
ENVIRO-TECH DIVING INC—
Jan 21, 2025Fence Installation & Repair
5431FDL
WESTERN PACIFIC FENCE LLC$32,488
Jan 13, 2025Turbidity Vault
Turbidity Vault
P & P EXCAVATING LLC$95,510
Dec 20, 2024No heat
80297
SMITH MECHANICAL INC$238
Nov 21, 2024GD PM service
PO 24-043
AIRWARE INC$13,175
Oct 30, 2024Plant one Eco block roof
Hoop Building
P & P EXCAVATING LLC$416,000
Oct 3, 2024PUMP 3 REPAIR AT PLANT 1
24-014
Paco Pumps$86,763
Sep 27, 2024Plant 1 Substation Plantings
Mitigation Plantings #2784
WINDWOOD ENTERPRISES INC$3,240
Aug 26, 2024Tree Management 115kV Line
PT425 - Ferndale Tree Trimming
KEMP WEST INC$32,635
Jul 31, 2024Easement and Plant mowing
Easement and Plant mowing
P & P EXCAVATING LLC$38,597
Jul 17, 2024D-Station Line stop and Valve replacement
D-Station
P & P EXCAVATING LLC$423,404
Jul 15, 2024Pump House Cleaning
Estimate 202429
ENVIRO-TECH DIVING INC—
Jul 15, 2024General Maintenance
79197
SMITH MECHANICAL INC$795
Jul 2, 2024Admin exterior cleaning
24-039
SUPER WINDOWS$665
Jun 26, 2024FLOOR SERVICE
NONE
Floor Guy$2,700
May 22, 2024(title withheld)
Trigg rd potholing
P & P EXCAVATING LLC$7,818
May 22, 2024IS-15 INTALCO/BPA FIBER PROJECT
IS-15
WAECO CONSTRUCTION LLC$323,556
May 22, 20241921 Main st Demo
1921 Main St.
P & P EXCAVATING LLC$141,776
May 1, 2024High Head 3 and 5 Base Repair
23-025
P & P EXCAVATING LLC$18,263
Apr 30, 202424-029 Plant 1 and Substation Card Readers
24-029
GATEWAY CONTROLS INC$47,540
Apr 12, 2024Repair Lennox Heat Pump
E025645-1
SMITH MECHANICAL INC$1,975
Apr 12, 2024Service call
78803
SMITH MECHANICAL INC$273
Apr 11, 2024Plant 1 wet well wood wall
Plant 1 wet well wood wall
P & P EXCAVATING LLC$24,839
Apr 11, 2024Plant 1 wet well wood picket barrier
Plant 1 wet well wood picket barrier
P & P EXCAVATING LLC$23,179
Apr 11, 2024Plant 1 wet well crack sealing
Plant 1 wet well crack sealing
P & P EXCAVATING LLC$7,503
Mar 20, 20242024 Annual HVAC
24-003
SMITH MECHANICAL INC$11,840
Mar 18, 2024(title withheld)
24-001
INDUSTRIAL RESOURCES INC$10,648
Feb 22, 2024Eco Block and Gravel Plant 1
23-002
P & P EXCAVATING LLC$24,980
Feb 21, 2024PUD Waterline Repair
C24-510 NJS
WESTERN REFINERY SERVICES INC—
Jan 29, 20242024 Annual Landscaping
24-004
PROSCAPES INC$6,800
Nov 29, 2023Whatcom PUD Anchor Installations
WO #6545
HYTECH ROOFING INC$10,643
Oct 4, 2023P1 Dredge and P2 Inspect
23-043
ENVIRO-TECH DIVING INC$57,000
Aug 7, 2023Alergrove Watermain Repair
07.28.2023
WESTERN REFINERY SERVICES INC—
Aug 2, 2023Plant 2 East Settling Pond Cleaning Project
360-384-4288
LEN HONCOOP GRAVEL INC$192,043
Jul 12, 2023Gravel Pad
Gravel Pad
P & P EXCAVATING LLC$6,370
Jul 12, 2023Plant 1 backfill
Plant 1
P & P EXCAVATING LLC$5,116
Jun 26, 2023Emergency repair 1808 Trigg Rd
1808 trigg rd
P & P EXCAVATING LLC—
Jun 14, 2023P2 Admin HVAC4
23-018
SMITH MECHANICAL INC$18,837
Jun 8, 2023Floor service
none
Floor Guy$2,800
May 31, 2023PAC Chomical Exhaust
23-022
STEEL RIVER PIPING & FAB LLC$16,184
May 19, 2023Whatcom PUD Solar
IS-19
WESTERN SOLAR$60,868
May 17, 20232023 Annual Landscaping Admin
23-013
MANAGEMENT SERVICES NW II LLC$7,740
May 15, 2023D-Station Potholing Aldergrove
Garrett Love-Smith
WESTERN REFINERY SERVICES INC$9,991
May 11, 2023E22 Substation Potholing
23-023
P & P EXCAVATING LLC$3,046
Apr 17, 2023Ferndale Sub Cameras
E26
GATEWAY CONTROLS INC$53,239
Mar 20, 2023Plant 1 High Head Pump 5 VFD
RW-35
MILLS ELECTRIC$513,146
Feb 3, 20232460 Salashan Loop
23-005
P & P EXCAVATING LLC—
Jan 28, 20232023 Annual HVAC
23-001
SMITH MECHANICAL INC$11,838
Jan 11, 20232023 Annual Janitorial
23-002
Whatcom Janitorial, LLC$17,160
Nov 22, 2022Duct Removal
Duct Removal
SMITH MECHANICAL INC$1,569
Oct 20, 2022P2 West Pond
none
P & P EXCAVATING LLC$47,900
Oct 20, 2022P2 West Pond Dirt Swap
none
P & P EXCAVATING LLC$49,850
Oct 12, 2022P2 West Pond Dig Out
none
P & P EXCAVATING LLC—
Sep 23, 2022Sophia Lane Tree Removal
none
ASPLUNDH TREE EXPERT LLC$42,784
Sep 20, 2022Plant 1 Weed Eat Mitigation Area
Plant 1
WINDWOOD ENTERPRISES INC$2,890
Aug 22, 20222022 Plant 1 North Settling Pond Cleaning ProjectP & P EXCAVATING LLC$117,420
Jul 28, 2022P2 Parking Lot Seal Coat and Striping
N/A
WESTERN REFINERY SERVICES INC$6,100
Jun 23, 2022Plant 1 Weed Eat Mitigation Area
Weed Eat Mitiagation Area
WINDWOOD ENTERPRISES INC$3,144
Jan 26, 2022Old Intake Emergency Flood Repair
none
P & P EXCAVATING LLC—
Jan 12, 20222022 landscape Maintenance
none
NORTHWEST MOWING & GARDENING$6,489
Jan 12, 2022Emergency flood repair
none
P & P EXCAVATING LLC—
Jan 5, 2022Janitorial Services for PUD no.1
2022
Whatcom Janitorial, LLC$15,900
Nov 19, 2021Move Wall for Plant 2 Server Room
n/a
TIGER CONSTRUCTION LTD$17,458
Oct 20, 2021Expose pipe at D station
none
P & P EXCAVATING LLC$31,160
Sep 23, 2021Douglas Road Utility Locating
N/A
WESTERN REFINERY SERVICES INC—
Sep 16, 2021Grandview Road Water Crossing
none
TIGER CONSTRUCTION LTD$204,645
Sep 7, 2021Pond cleaning
NA
P & P EXCAVATING LLC$105,424
Aug 25, 2021Elec Easement mowing
1021
J T I COMMERCIAL SERVICES LLC$11,175
Jul 13, 2021Ferndale River Plant
ferndale
NESS CRANES—
Jun 29, 2021Pump Station No. 1 Substation
NA
POTELCO INC$3,989,363
Jun 9, 2021Install water piping at basins 5-6 at Plant 2
001
STEEL RIVER PIPING & FAB LLC$10,163
Jun 8, 2021Repair Front Gate Pedestals
21 0021
GATEWAY CONTROLS INC$4,791
May 12, 2021Replace Plant 2 Intake Power Poles
N/A
POTELCO INC$26,524
May 6, 20212021 - 115kV Transmission Line Pole Replacement
2021 - 01
TITAN ELECTRIC CONTRACTING INC$344,833
Apr 14, 2021Provide and Install Basin Brackets at P 1
0001
STEEL RIVER PIPING & FAB LLC$5,098
Apr 13, 2021Install Offices at Plant 2 Maintenance Building
n/a
TIGER CONSTRUCTION LTD$44,821
Apr 9, 2021Industrial Water Connection
none
P & P EXCAVATING LLC$65,932
Mar 10, 2021Research Economizer
71374
SMITH MECHANICAL INC$196
Mar 10, 2021Research Economizer Controls
71374
SMITH MECHANICAL INC$196
Mar 9, 2021Install Cameras at Plant No. 1
030421
GATEWAY CONTROLS INC$47,513
Feb 8, 20212021 landscape Maintenance
none
NORTHWEST MOWING & GARDENING$6,483
Feb 2, 2021Potable Blow Off Grandview
0
LARRY BROWN CONSTRUCTION INC$10,240
Jan 22, 2021Janitorial Services for PUD no. 1
2021
Whatcom Janitorial, LLC$15,000
Nov 18, 2020DE-ICING COMPRESSOR
PUD010
MILLS ELECTRIC$696,218
Nov 5, 2020Install Conduit for Plan #1 SCADA NetworkGATEWAY CONTROLS INC$18,446
Oct 22, 2020Transformer testing
NA
ELECTRICAL RELIABILTY SVCS INC$17,400
Oct 7, 2020STANDBY GENERATOR
20-0043
MILLS ELECTRIC$1,004,955
Sep 5, 2020Install Security Screens at Plant 1
001
STEEL RIVER PIPING & FAB LLC$3,935
Jul 28, 2020Ferndale River Plant
Ferndale
NESS CRANES—
Jun 29, 20202020-115kV Transmission Pole Replacement
2020-1
MICHELS CORP$298,751
Jun 15, 2020Freeze Protection Covers at Plant No. 2
19
STEEL RIVER PIPING & FAB LLC$22,914
Jun 15, 2020Replace Leaking Air Piping at P 2 Intake
3603844849
STEEL RIVER PIPING & FAB LLC$20,199
Apr 2, 2020Plant 2 Basin 5 & 6 Service Water Repairs
19-002
STEEL RIVER PIPING & FAB LLC$21,436
Mar 30, 2020Diving investigation & repair
n/a
Top To Bottom Diving & Marine Service Inc.$10,435
Mar 11, 2020Tree Trimming for fiber optic Line Clearance
NA
ASPLUNDH TREE EXPERT LLC$34,740
Mar 10, 2020Replace Ladders In Basins at Plant #1
18-0061
STEEL RIVER PIPING & FAB LLC$11,919
Mar 5, 2020Tree Trimming for Optic Line Clearnace
N/A
ASPLUNDH TREE EXPERT LLC$34,740
Feb 19, 2020Cleaning Services
2020
WHATCOM JANITORIAL LLC$15,000
Jan 21, 2020Greenheck exhaust fan
68463
SMITH MECHANICAL INC$4,773
Jan 2, 2020Repair sink hole at Pole 57
Repair sink hole at Pole 57
P & P EXCAVATING LLC$3,127
Jan 2, 2020Splice And Terminate Fiber At Enterprise SubstationCARPENTER CABLE SERVICES INC$3,131
Nov 4, 2019Whatcom County Public Utility District #1
None
HYTECH ROOFING INC$13,642
Oct 29, 2019REPAIR 600 HP VERTICAL MOTOR
PLANT 1 - PUMP 5
CENTER ELECTRIC ACQUISITIONS DBA CENTER ELECTRIC INC$23,626
Oct 18, 2019General Service
67758
SMITH MECHANICAL INC$3,686
Oct 3, 2019Douglas Rd. Utility Work
N/A
WESTERN REFINERY SERVICES INC—
Sep 26, 2019Inspect 115kV Transmission Line Steel Towers at I-5 Crossing
N/A
POTELCO INC$7,704
Sep 11, 20192019-Plant No.2 East Pond Cleaning
2019-Plant No.2
LEN HONCOOP GRAVEL INC$91,140
Aug 23, 2019Douglas Rd Vault
2019-08-12
FIBERNET INC$16,250
Aug 8, 2019Mowing Easment 2019
Mowing Easment
P & P EXCAVATING LLC$12,098
Aug 4, 2019(title withheld)
19-0040
STEEL RIVER PIPING & FAB LLC$26,447
Jul 29, 2019Grandview Utility Locating
N/A
WESTERN REFINERY SERVICES INC—
Jul 23, 20192019 Trigg Rd Mowing
Mowing
P & P EXCAVATING LLC$8,788
Jul 22, 2019Emergency Grandview Salishan loop waterline repair
On Call
P & P EXCAVATING LLC—
Jun 15, 2019Spring weed control 2019
19-0026
All Season Spraying$6,322
May 30, 2019Chemical Tanks Hatch Doors
19-0037
PARTNER INDUSTRIAL LP$10,761
May 28, 2019Whatcom Cnty Splicing/Testing on Existing Fiber Network
2019-0328
FIBERNET INC$24,592
May 15, 2019General Service
66368
SMITH MECHANICAL INC$3,671
May 9, 2019Relocate Aerial Fiber To Underground
2019-3-13
CARPENTER CABLE SERVICES INC$6,454
Apr 30, 20192019 - 115kV Transmission Pole Replacement
N/A
POTELCO INC$251,449
Apr 30, 2019Vista Drive & Grandview RD Watermain Extension Project
rw-32
TIGER CONSTRUCTION LTD$2,197,863
Apr 26, 2019Grandview Utility Locating
M19-531PW
WESTERN REFINERY SERVICES INC—
Apr 24, 2019Grandview & Vista Resplice
Grandview & Vista Resplice
FIBERNET INC$6,224
Apr 17, 2019Installation of Admin Security System
PO#19-0002
GATEWAY CONTROLS INC$26,117
Apr 2, 2019Diving investigation and repair at Plants 1 & 2
none
Top To Bottom Diving & Marine Service Inc.$9,783
Feb 28, 2019Repair/Restore Plant 2 Intake Transformer Connection
N/A
POTELCO, INC.$2,556
Feb 5, 2019Replace Ladders in Basins at Plant No. 1
N/A
Steel River Piping and Fabrication,LLC$11,919
Feb 5, 2019Replace Access Hatches at Plant No. 1
N/A
Steel River Piping and Fabrication,LLC$7,420
Jan 30, 20192019 General Landscape MaintenanceNORTHWEST MOWING & GARDENING$6,174
Jan 3, 2019Janitorial Services for PUD No. 1
2019
WHATCOM JANITORIAL LLC$15,000
Dec 21, 2018Gravel Placed Around PondP & P EXCAVATING LLC$17,344
Dec 21, 2018Grandview RD/Alderwood Rd Driveway upgradeP & P EXCAVATING LLC$5,506
Dec 19, 2018Plant 1 Door and Hardware
18-0070
DOORMAN COMMERCIAL LLC$1,456
Nov 15, 2018Build Overflow Enclosures with Gates at Plant No. 1
N/A
STEEL RIVER PIPING & FAB LLC$8,761
Nov 6, 2018Backbone Communications, BPA ConnectionMICHELS CORP$77,101
Oct 17, 2018(title withheld)
18-0058
APSCO LLC$22,335
Oct 9, 2018Trigg Rd FencingCARLSON STEELWORKS INC$15,444
Sep 27, 2018Seal Wall Crack at Plant#1
Plant #1
OLSON BROTHERS PRO-VAC LLC—

Most recent first. Each amount is the figure declared on the prime contractor's intent; amounts are not added up. Project addresses are not published.

Contractors that filed intents on its projects

ContractorIntents on this agency's projects
All Season Spraying11
ANDGAR CORPORATION13
ASPLUNDH TREE EXPERT CO14
BAYSIDE SERVICES7
COWDEN GRAVEL & READY MIX6
GATEWAY CONTROLS INC25
HYTECH ROOFING INC6
IVERSON EARTH WORKS LLC8
LEN HONCOOP GRAVEL INC12
MANAGEMENT SERVICES NW II LLC6
MICHELS CORP7
MILLS ELECTRIC9
NESS CRANES9
NORTHWEST FENCE INC7
NORTHWEST MOWING & GARDENING14
P & P EXCAVATING LLC95
POTELCO INC24
SMITH MECHANICAL INC25
STEEL RIVER PIPING & FAB LLC28
STREMLER GRAVEL INC15
Top To Bottom Diving & Marine Service Inc.13
WESTERN PACIFIC FENCE LLC10
WESTERN REFINERY SERVICES INC40
WHATCOM JANITORIAL LLC12
WINDWOOD ENTERPRISES INC9

Alphabetical order; the 25 contractors with the most filings on this agency's projects, prime and subcontractors together.