wa-public-works-records

WOODLAND PARK ZOO — public works contracts

449 public works projects and 771 intents to pay prevailing wages name WOODLAND PARK ZOO as the awarding agency, in the L&I file of Oct 1, 2026. L&I classes it as: Other.

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
323225193360551029770

Latest contracts (200)

Intent filedContractPrime contractorAmount declared
Sep 16, 2026Stork & Vulture Support Space
2026-740-082
TURNSTONE CONSTRUCTION$237,548
Sep 16, 2026South Roof Replacement and Restroom Improvements
2026-950-010
FORMA CONSTRUCTION COMPANY$943,123
Sep 11, 2026(title withheld)
263087PS
CHAMPION TREE CARE LLC$6,000
Sep 7, 2026(title withheld)
2026-740-002
NORTHEND EXCAVATING INC$10,000
Sep 7, 2026Wild Encounters Contact Yard
2026-970-004
NORTHEND EXCAVATING INC$34,400
Sep 6, 2026Lion Fence Installation
2025-740-022
NORTHEND EXCAVATING INC$21,216
Sep 6, 2026North Meadow Gravel Path Decommissioning
2026-970-002
NORTHEND EXCAVATING INC$11,055
Aug 26, 2026Domestic Pump House Electrical
2026-740-016
SEQUOYAH ELECTRIC LLC$14,175
Aug 20, 2026Hyena Habitat Upgrades
2026-740-004
TURNSTONE CONSTRUCTION$61,825
Aug 19, 2026Conservation Aviary Mesh Upgrade
2026-740-005
TURNSTONE CONSTRUCTION$103,871
Aug 19, 2026WPZ Flamingo Install
N/A
TURNSTONE CONSTRUCTION$9,995
Aug 19, 2026(title withheld)
2026 Annual PO
FROULA ALARM SYSTEMS INC—
Aug 14, 2026Savanna Aviary Repairs
2026-740-007
TURNSTONE CONSTRUCTION$82,450
Aug 14, 2026Forest Trailhead Drinker Covers
2026-970-001
TURNSTONE CONSTRUCTION$24,895
Aug 6, 2026(title withheld)
WPZ #727
TURNSTONE CONSTRUCTION$87,550
Aug 2, 2026WPZ #6 Partition | Exhibit Glass Restoration
2026-740-001
NORTHWEST GLASS RESCUE LLC$3,985
Aug 2, 2026WPZ #6 | Exhibit Glass Restoration
2026-740-001
NORTHWEST GLASS RESCUE LLC$5,930
Jul 29, 2026Woodland Park Zoo Wolf/Elk Barn
S2607-105
VENTILATION POWER CLEANING INC—
Jul 22, 2026WPZ RFI #11 | Exhibit Glass Restoration
2026-740-001
NORTHWEST GLASS RESCUE LLC$6,710
Jul 14, 2026WPZ FTH-D | Exhibit Glass Restoration
2026-740-001
NORTHWEST GLASS RESCUE LLC$1,550
Jul 14, 2026WPZ RFI#4 | Exhibit Glass Restoration
2026-740-001
NORTHWEST GLASS RESCUE LLC$4,325
Jul 14, 2026WPZ RFI#9 | Exhibit Glass Restoration
2026-740-001
NORTHWEST GLASS RESCUE LLC$5,130
Jul 9, 2026Repaving Parking Lot
01
THE SEALCOAT KING$26,176
Jul 5, 2026WPZ RFI #3 | Exhibit Glass Restoration
2026-740-001
NORTHWEST GLASS RESCUE LLC$7,943
Jun 29, 2026Goat Barn Retrofit
2026-970-005
G-Three Builders Corp$51,234
Jun 29, 2026Chicken Coop Demo and Retrofit
2026-970-006
G-Three Builders Corp$10,981
Jun 28, 2026WPZ RFI#16 | Exhibit Glass Restoration
2026-740-1
NORTHWEST GLASS RESCUE LLC$4,400
May 30, 2026WPZ RFI#6 | Exhibit Glass Restoration
2026-740-001
NORTHWEST GLASS RESCUE LLC$4,760
May 21, 2026WPZ RFI#5+7 | Exhibit Glass Restoration
2026-740-001
NORTHWEST GLASS RESCUE LLC$4,835
May 15, 2026South Roof Pre-construction and Restroom Updates
2026-950-006
FORMA CONSTRUCTION COMPANY$96,118
May 7, 2026North Meadow Upgrade
2026-310-001
SEQUOYAH ELECTRIC LLC$170,622
Apr 13, 2026Rose Garden Paver Edge
2026-950-004
FORMA CONSTRUCTION COMPANY$38,500
Apr 7, 2026Southwest Holdings Pull Station Replacement
QTE 68022
FROULA ALARM SYSTEMS INC$2,712
Mar 22, 2026Lynx's Service Fence
2025-950-009
NORTHEND EXCAVATING INC$6,200
Mar 22, 2026Family Farm Aviary Selective Demolition
WPZ Project Number 727
NORTHEND EXCAVATING INC$7,800
Mar 22, 2026TRF3 Exterior Mesh Upgrade
2025-740-016
NORTHEND EXCAVATING INC$10,000
Mar 18, 2026(title withheld)
S2603-067
VENTILATION POWER CLEANING INC—
Mar 9, 2026Animal hospital - boiler pump & motor replacement
15809
CASCADE BOILER SERVICES INC$9,138
Mar 4, 2026(title withheld)
S2603-010
VENTILATION POWER CLEANING INC—
Feb 17, 2026Forest Trailhead Interpretive Fabrication
2025-970-004
INTENTION SPACE$750,000
Feb 14, 2026WPZ Ailanthus removal
WPZ Ailanthus removal
CHAMPION TREE CARE LLC$4,750
Feb 13, 2026Penguin Gravel Removal and Shotcrete Wall Installation
2026-9501
FORMA CONSTRUCTION COMPANY$48,820
Feb 2, 2026(title withheld)
2025-720-003
BAYLEY CONSTRUCTION LP$778,982
Jan 27, 2026Snow Leopard Area Catch Basin Cleaning
S2601-111
VENTILATION POWER CLEANING INC—
Jan 13, 2026(title withheld)
730 Patas
VITAL MECHANICAL INC$6,417
Jan 6, 2026Carousel Bearing Replacement
2025-740-021
PEASE PIPING INC$229,546
Dec 19, 2025Habitat Maintenance and Upgrades
2025-740-018
TURNSTONE CONSTRUCTION—
Dec 18, 2025(title withheld)
S2512-080
VENTILATION POWER CLEANING INC—
Dec 16, 2025Forest Trailhead Interpretive Fabrication
2025-970-004
MACH 2 ARTS INC$750,000
Dec 12, 2025WPZ Heat Pad Replacement - Patas & Warty Pig
2025-950-018
TURNSTONE CONSTRUCTION$53,603
Dec 12, 2025WPZ Tapir Heat Pad Repair
T&M-1
TURNSTONE CONSTRUCTION—
Dec 8, 2025Tortoise Holding and Yard Upgrade
2025-970-005
G-Three Builders Corp$119,864
Nov 13, 2025Woodland Park Zoo
SA 12680
MCKINSTRY CO LLC$7,220
Nov 13, 2025Woodland Park Zoo
SA 12680
MCKINSTRY CO LLC$2,503
Nov 11, 2025BWA2 BPS EnergynWPZ - Green Mig
SII - 44OP-338906
SIEMENS INDUSTRY INC$199,519
Nov 11, 2025CWC Bldg Access Control
JST67024
FROULA ALARM SYSTEMS INC$4,429
Nov 9, 2025Zoo Cottonwood Trees in Family Farm
Zoo Cottonwood trees in family Farm
CHAMPION TREE CARE LLC$18,580
Nov 4, 2025North Restroom ADA Improvements
2025-950-017
JTM CONSTRUCTION INC$177,420
Nov 4, 2025Asian Small-clawed Otter Anti-Climb Shield
2025-740-008
MACH 2 ARTS INC$8,086
Oct 30, 2025(title withheld)
2025-740-007
MACH 2 ARTS INC$9,920
Oct 30, 2025FTH - FLAMINGO LOT POWER CONVERSION
2025-970-003
Veca Electric & Tech LLC$50,488
Oct 8, 2025West Entry Access Control
IT3119
FROULA ALARM SYSTEMS INC$27,642
Sep 22, 2025Zoo Elk Exhibit
Zoo Elk Exhibit
CHAMPION TREE CARE LLC$1,587
Sep 22, 2025(title withheld)
Zoo Wolf Exhibit
CHAMPION TREE CARE LLC$1,589
Sep 22, 2025Rhino Drain Line Repair
2025-730-001
NORTHEND EXCAVATING INC—
Sep 9, 2025Tropical Rainforest Boiler Gasket Replacement
2025-950-007
CASCADE BOILER SERVICES INC$12,548
Aug 26, 2025Zoo Tunes Area
Zoo tunes area
CHAMPION TREE CARE LLC$5,360
Aug 21, 2025Woodland Park Zoo Small Works Wolf Exhibit
2025-950-010
TURNER CONSTRUCTION COMPANY$142,608
Aug 20, 2025West Entry Access Control
IT3119
FROULA ALARM SYSTEMS INC$27,642
Aug 10, 2025Banyan Wilds Play Area Fence Demo
2025-740-011
NORTHEND EXCAVATING INC$6,952
Aug 10, 2025Hippo Exhibit Fence Construction
2025-740-014
NORTHEND EXCAVATING INC$10,814
Aug 10, 2025Hippo Substrate Modification
2025-740-013
NORTHEND EXCAVATING INC$10,704
Jul 28, 2025Browse Garden Lower Deer-WPZ 351
2025-950-012
CHAPMAN CONSTRUCTION LLC$275,000
Jul 16, 2025Orangutan Indoor Mesh Modifications
2025-740-009
BALLARD SHEET METAL WORKS INC$65,866
Jul 13, 2025Forest Trailhead Temp Pedestrian Pathway Refresh
2025-970-014
NORTHEND EXCAVATING INC$7,780
Jul 13, 2025Winter Browse Garden Demolition Project
WPZ Project Number 876
NORTHEND EXCAVATING INC$10,814
Jul 13, 2025VR Experience Slab/Gravel Pathway/Shed Demo
WPZ 2025-700-003/005
NORTHEND EXCAVATING INC$13,021
Jul 2, 2025Forest Trailhead Bridge/Branch Welding and Patina
2025-970-001
MACH 2 ARTS INC$69,832
Jun 26, 2025Woodland Park Zoo Penguin LSS Cooling
2024-950-012
PSF MECHANICAL INC$879,270
Jun 23, 2025SSV WPZ Drywall Patching
8194.053
SELLEN CONSTR CO INC$2,968
Jun 2, 2025VR Experience - 400amp Elec. Panel
2025-700-001
SEQUOYAH ELECTRIC LLC$56,950
Jun 2, 2025(title withheld)
740
Ground Penetrating Radar Systems, Inc—
May 30, 2025(title withheld)
2025-740-001
HERZOG INDUSTRIES LLC$33,500
May 15, 2025Tapir Exhibit Heated Concrete
406-1
Phase 3 Electric LLC$3,237
May 15, 2025Woodland Park Zoo
25048
NYS ENTERPRISES INC$14,130
May 9, 2025Woodland Park Zoo
700MT
POWER SYSTEMS WEST LLC$3,680
Apr 23, 2025(title withheld)
2025-970-001
TURNSTONE CONSTRUCTION INC$123,375
Apr 23, 2025WPZ Tapir Refresh
2025-950-011
TURNSTONE CONSTRUCTION INC$49,885
Apr 23, 2025WPZ Tapir Heating Pad Replacement
2025-950-002
TURNSTONE CONSTRUCTION INC$9,720
Apr 22, 2025TRF Bird Holding Floor Renovation
2025-750-003
LONG PAINTING CO$22,888
Mar 24, 2025Rhino Pump House Re-Roofing
2024-950-016
STANLEY ROOFING CO INC$25,840
Mar 20, 2025Storm Drain Cleaning
S2503-082
VENTILATION POWER CLEANING INC—
Mar 19, 2025Smoke Supervision in Animal Barns & Commissary
64718-19 64690 64500
FROULA ALARM SYSTEMS INC$12,905
Mar 19, 2025Ambassador Animal Bldg
050924
FROULA ALARM SYSTEMS INC$4,873
Mar 11, 2025Forest Trailhead Security System
2024-970-017
FROULA ALARM SYSTEMS INC$48,926
Mar 11, 2025Woodland Park Zoo - Clinic Fan
2025-950-004
MACDONALD-MILLER FAC SOLNS LLC$137,256
Mar 7, 2025Woodland Park Zoological Society
700MT
POWER SYSTEMS WEST LLC$13,221
Mar 3, 2025Tapir Floor Renovation
2024-950-019
NORTHEND EXCAVATING INC$9,800
Feb 26, 2025Tiger Case Paint RemovalLONG PAINTING CO$10,908
Feb 10, 2025February Tree Work
202402
CHAMPION TREE CARE LLC—
Jan 6, 2025January Tree Work
20250108
CHAMPION TREE CARE LLC—
Dec 3, 2024Conservation Aviary + Tower Barn
080524
FROULA ALARM SYSTEMS INC$10,078
Nov 19, 2024(title withheld)
0805241
FROULA ALARM SYSTEMS INC$1,664
Nov 19, 2024(title withheld)
080524
FROULA ALARM SYSTEMS INC$4,879
Nov 19, 2024December Tree Work
2024121112
CHAMPION TREE CARE LLC—
Nov 1, 2024Catch Basin and Vault Cleaning at Rhino Enclosure
S10-144
VENTILATION POWER CLEANING INC—
Oct 23, 2024Oct/Nov Tree Work
20241023
CHAMPION TREE CARE LLC—
Sep 23, 2024Elms Maintenance
20240925
CHAMPION TREE CARE LLC—
Sep 4, 2024Phinney Tree Removals
20240911
CHAMPION TREE CARE LLC—
Sep 4, 2024London Planes & Catalpa Trimming
2024090813
CHAMPION TREE CARE LLC$6,900
Sep 3, 2024Snow Leopard Viewing Re-roofing
2024-950-014
STANLEY ROOFING CO INC$25,016
Aug 21, 2024Zoo Restaurant Catch Basin
S8-064
VENTILATION POWER CLEANING INC—
Aug 12, 2024Asian Bear Floor
None
CONCRETE RESTORATION INC$15,000
Aug 2, 2024(title withheld)
2023-950-012
CRESSY DOOR CO INC$120,836
Aug 1, 2024Turtle Trailer Roof Replacement
Project Number #322
PREFERRED ROOF SERVICES INC$29,353
Jul 25, 2024WPZ Reptile Exhibit - Interpretive Wall
2024-720-001
MOON CONSTRUCTION COMPANY$26,427
Jul 15, 2024Gorilla Generator, Service
700MT
E C COMPANY$1,808
Jun 20, 2024Education Center Fire Panel Replacement
2024-950-011
FROULA ALARM SYSTEMS INC$58,555
Jun 20, 2024Tiger Case Paint Removal
Tiger Case Paint Removal
LONG PAINTING CO$9,785
Jun 12, 2024WPZ Reptile Room
2024-720-002
LONG PAINTING CO$23,727
Jun 11, 2024June 13 Tree Work
20240613
CHAMPION TREE CARE LLC—
Jun 11, 2024WPZ Tower Emon Dmon Bug World
signed proposal
VITAL MECHANICAL INC$5,560
May 23, 2024Woodland Park Zoo Trailer Office Mod
signed proposal
VITAL MECHANICAL INC$1,528
May 21, 2024May 22 Tree Work
20240522
CHAMPION TREE CARE LLC—
May 10, 2024Tropical Rainforest Asphalt Work
2024-950-006
NORTHEND EXCAVATING INC$14,566
May 10, 2024Forest Trailhead Temp Pedestrian Pathway
2024-970-003
NORTHEND EXCAVATING INC$20,939
May 8, 2024(title withheld)
2024-950-005
TURNSTONE CONSTRUCTION INC$20,165
Apr 24, 2024April 24 Tree Work
20240424
CHAMPION TREE CARE LLC—
Apr 22, 2024Woodland Park Zoo-Perform combustion analysis on boiler after customer self-performed repair
WO# 9943088
MCKINSTRY CO LLC$718
Apr 10, 2024(title withheld)
S4-077
VENTILATION POWER CLEANING INC—
Apr 9, 2024WPZ Reptile Exhibit Asphalt Patching
2024-950-004
A A ASPHALTING LLC$7,996
Mar 26, 2024March 27 Tree Work
20240327
CHAMPION TREE CARE LLC—
Feb 21, 2024WPZ Forest Trailhead
009� 950-2024
SELLEN CONSTR CO INC$25,000,000
Feb 20, 2024February 28 Tree Work
20240228
CHAMPION TREE CARE LLC—
Feb 20, 2024Automatic Transfer Switch - Basecamp NW
2024-950-008
VITAL MECHANICAL INC$18,527
Feb 14, 2024Access Control for Animal Health
58399
FROULA ALARM SYSTEMS INC$25,240
Feb 7, 2024WPZ BUTTERFLY RE-ROOF
JUSTIN HELM
TURNSTONE CONSTRUCTION INC$115,950
Jan 31, 2024January 31 - Tree Work
20230131
CHAMPION TREE CARE LLC—
Jan 22, 2024Tapir Barn Gutter Replacement
2023-950-015
NORTHSHORE EXTERIORS INC$9,350
Jan 22, 2024Woodland Park Zoo Replace Back
2023-950-019
MACDONALD-MILLER FAC SOLNS LLC$108,327
Jan 16, 2024Penguin Exhibit filter pod cleaning
S1-036
VENTILATION POWER CLEANING INC—
Dec 28, 2023Woodland Park Zoo Commissary
77341872/2128
HOBART$51,042
Dec 13, 2023(title withheld)
2023-950-024
TURNSTONE CONSTRUCTION INC$16,835
Nov 10, 2023Woodland Park Server Room Split System
2023-950-006
MCKINSTRY CO LLC$28,271
Nov 3, 2023Woodland Park Zoo Commissary
77341872
HOBART$44,608
Nov 2, 2023November/December ASAP Fall Work
202311
CHAMPION TREE CARE LLC—
Oct 26, 2023Oct 24 Tree Work
20231024
CHAMPION TREE CARE LLC—
Sep 27, 2023WPZ Snow Leopard
2023-950-017
TURNSTONE CONSTRUCTION INC$159,220
Sep 18, 2023September 26 Tree Work
20230926
CHAMPION TREE CARE LLC—
Sep 3, 2023Woodland Park Zoo-Boiler Diagnose and Repair (General)
WO 9923907
MCKINSTRY CO LLC$1,176
Aug 30, 2023WPZ Bird Enclosure
1
TURNSTONE CONSTRUCTION INC$19,415
Aug 28, 2023August 29 Tree Work
20230829
CHAMPION TREE CARE LLC—
Aug 24, 2023MXL Upgrade
2023-950-008
FROULA ALARM SYSTEMS INC$24,962
Aug 12, 2023Aug 16 Tree Work
20230816
CHAMPION TREE CARE LLC—
Jun 23, 2023Western Pond Turtle & Silverspot Trailer HVAC Upgrade
2023.950.007
VITAL MECHANICAL INC$42,510
Jun 8, 2023WPZ Rainforest BoilerBurn Repl
2023-950-009
MACDONALD-MILLER FAC SOLNS LLC$39,598
Jun 6, 2023June 13 Tree Work
20230613
CHAMPION TREE CARE LLC—
May 2, 2023May 9 Tree Work
20230509
CHAMPION TREE CARE LLC—
Apr 21, 2023WPZ Forest For All - Preconstruction
2022-970-011
SELLEN CONSTR CO INC$200,000
Apr 12, 2023Lions Locust Trees
20230414
CHAMPION TREE CARE LLC—
Apr 11, 2023(title withheld)
2023-970-004
TURNER CONSTRUCTION COMPANY$144,867
Mar 29, 2023April 4 Tree Work
20230404
CHAMPION TREE CARE LLC—
Mar 29, 2023WPZ Forest for All Demo and Grading
2023-970-002
SELLEN CONSTR CO INC$1,225,491
Mar 27, 2023(title withheld)
20230328
CHAMPION TREE CARE LLC—
Mar 9, 2023March 14 & 15 Tree Work Including Elm
2023031415
CHAMPION TREE CARE LLC—
Feb 21, 2023Woodland Park Zoo Chiller
23-12NG
MACDONALD-MILLER FAC SOLNS LLC$89,915
Feb 15, 2023Turtle Exhibit HVAC
2023-950-003
VITAL MECHANICAL INC$21,405
Feb 13, 2023Feb 28 Tree Work
20230228
CHAMPION TREE CARE LLC—
Jan 22, 2023greenhouse renovation
Zoo CapEx Projects
PRECISION CONTRACTING SVCS LLC$37,422
Jan 10, 2023Geotechnical Engineering - Woodland Park Zoo Forest For All Pavillion
2022-970-001
GEOENGINEERS INC$37,875
Jan 4, 2023January 17 Tree Work
20230117
CHAMPION TREE CARE LLC—
Dec 8, 2022Big leaf maple and Cherry tree removal
40679699
THE FA BARTLETT TREE EXPERT CO—
Dec 5, 2022December 13 Tree Work
20221213
CHAMPION TREE CARE LLC—
Nov 11, 2022(title withheld)
2022.950.11
MACDONALD-MILLER FAC SOLNS LLC$9,260
Nov 11, 2022WPZ Paint Shop Eye Wsh Equip.
2022.950-012
MACDONALD-MILLER FAC SOLNS LLC$5,240
Nov 11, 2022WPZ Paint Shop Piping Install
2022.950.012 E-51NG
MACDONALD-MILLER FAC SOLNS LLC$9,000
Nov 8, 2022November 8 Tree Work
20221108
CHAMPION TREE CARE LLC—
Oct 25, 2022(title withheld)
2022-950-#099-007
MOON CONSTRUCTION COMPANY$4,254
Oct 24, 2022Basecamp Northwest Exhibit
099-006
ALPHAPRINT, INC$42,813
Oct 18, 2022October 18 Tree Work
20221018
CHAMPION TREE CARE LLC—
Oct 18, 2022WPZ Lynx Slab
099-008
TURNSTONE CONSTRUCTION INC$10,104
Sep 29, 2022Woodland Park Zoo Patching
3816
A A ASPHALTING LLC$83,374
Sep 14, 2022WPZ Pond Turtle
099-002
TURNSTONE CONSTRUCTION INC$103,555
Sep 14, 2022September 19 Tree Work
20220919
CHAMPION TREE CARE LLC—
Sep 8, 2022(title withheld)
Project Number #345
PREFERRED ROOF SERVICES INC$30,884
Sep 7, 2022WPZ RIVER OTTER
740.2022.004
TURNSTONE CONSTRUCTION INC$8,835
Sep 1, 2022Sound Barrier Installation
2022.740.012
SELLEN CONSTR CO INC$5,200
Sep 1, 2022Family Farm Restroom ADA Modifications
2022.950.01
SELLEN CONSTR CO INC$69,594
Aug 24, 2022(title withheld)
099
A THRU Z CONSULTING & DIST INC$531,075
Aug 11, 2022Woodland Park Zoo Commissary 22085
950.2022.002
ACTIVE ENGINEERING$8,240
Aug 10, 2022(title withheld)
099
TURNSTONE CONSTRUCTION INC$40,435
Jul 27, 2022Woodland Park Zoo - WPZ Reptile Exhibit Adaptation Building Renovation
2023-970-010
TURNER CONSTRUCTION COMPANY$1,615,638
Jul 18, 2022Education Center 2nd Floor Refresh
357
Tera Painting & Construction$14,553
Jul 14, 2022July 14 Tree Work
20220714
CHAMPION TREE CARE LLC—
Jun 17, 2022Penguin Irrigation Valve Replacement
740.2022.011
L W SUNDSTROM INC$12,000
Jun 10, 2022June 14 Tree Work
20220614
CHAMPION TREE CARE LLC—
May 12, 2022(title withheld)
099-01
SELLEN CONSTR CO INC$612,346
May 11, 2022May 17 Tree Work
20220517
CHAMPION TREE CARE LLC—
Apr 18, 2022Apr 19 Tree Work
20220419
CHAMPION TREE CARE LLC—
Apr 11, 2022WPZ - 1899 Grove Grab-n-Go Refresh
343
SELLEN CONSTR CO INC$79,479

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 CITY FENCE CO10
CASCADE SAWING & DRILLING INC8
CHAMPION TREE CARE LLC69
CRAWFORD ELECTRIC LLC6
E C COMPANY6
FORMA CONSTRUCTION COMPANY18
FROULA ALARM SYSTEMS INC15
GARLAND/DBS INC9
LINCOLN INDUSTRIAL CORP INC5
LONG PAINTING CO7
MACDONALD-MILLER FAC SOLNS LLC7
MACH 2 ARTS INC5
MCKINSTRY CO LLC13
NORTHEND EXCAVATING INC32
NORTHWEST GLASS RESCUE LLC10
PERFORMANCE CONTRACTING INC6
SEATTLE TREE PRESERVATION INC16
SELLEN CONSTR CO INC9
SEQUOYAH ELECTRIC LLC9
SIEMENS INDUSTRY INC7
THE FA BARTLETT TREE EXPERT CO16
TURNSTONE CONSTRUCTION11
TURNSTONE CONSTRUCTION INC24
VENTILATION POWER CLEANING INC17
VITAL MECHANICAL INC7

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