SEATTLE, PORT OF — public works contracts
5,065 public works projects and 13,246 intents to pay prevailing wages name SEATTLE, PORT OF as the awarding agency, in the L&I file of Oct 1, 2026. L&I classes it as: Port 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
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|---|---|
| 827 | 719 | 751 | 710 | 630 | 648 | 1,014 | 976 | 1,030 | 694 |
Latest contracts (200)
| Intent filed | Contract | Prime contractor | Amount declared |
|---|---|---|---|
| Sep 28, 2026 | General Contractor Unit Price (Second Year) SW-0322467 | LUMANK INC | $217,973 |
| Sep 21, 2026 | T-102 Janitorial Services S-00320668 | Buenavista Services Inc. | $35,000 |
| Sep 21, 2026 | Port of Seattle FD Training SQ34133 | ONE WORKPLACE | $40,523 |
| Sep 16, 2026 | Flooring and Wall Covering Unit Price Portwide 2026 SW-0322927 | PRIMECOM USA LLC | $350,000 |
| Sep 16, 2026 | Port of Seattle: MW C-0000294634 | Motorola Solutions, Inc | $1,355,486 |
| Sep 15, 2026 | SeaTac TWVPS Dante Test System A-0000303009 | ELECTROCOM | $142,198 |
| Sep 14, 2026 | Biohazardous Clean-up SEATTLE, PORT OF | BIO CLEAN INC | — |
| Sep 12, 2026 | Terminal 30 Police Offices Janitorial C-00321601 | Buenavista Services Inc. | $10,593 |
| Sep 11, 2026 | FV NEW ST JOSEPH REMOVAL | GLOBAL DIVING AND SALVAGE INC | $640,000 |
| Sep 9, 2026 | General Contractor Unit Price Portwide 2026-1 SW-0322909 | LUMANK INC | $350,000 |
| Sep 9, 2026 | Electrical Unit Price Portwide 2026-2 SW-0322919 | VETS POWER ELECTRIC LLC | $350,000 |
| Sep 9, 2026 | Innspace Seattle Office TI 1 | INNSPACE | — |
| Sep 8, 2026 | Electrical Unit Price Portwide 2026-1 SW-0322908 | CLINTON & SONS ELECTRIC INC | $350,000 |
| Sep 1, 2026 | Pier 90-91 PR-41710 | NESS CRANES | $9,908 |
| Sep 1, 2026 | Landscape Maintenance S STIA Unit Price 2023 SW-0321588 | PLANTSCAPES INC | $350,000 |
| Aug 31, 2026 | 1650088 Port of Seattle T91 Berths 6&8 Building A C-0000302892 | GUARDIAN SECURITY SYSTEMS INC | $3,673 |
| Aug 31, 2026 | Shilshole Bay Marina Service A-0000302370 | A&R SOLAR | $2,470 |
| Aug 31, 2026 | 1650089 Port of Seattle T91 Berths 6&8 Building B C-0000302892 | GUARDIAN SECURITY SYSTEMS INC | $3,673 |
| Aug 27, 2026 | (title withheld) 2405-002 | ATLAS COPCO COMPRESSORS LLC | $1,000 |
| Aug 27, 2026 | T106 MONTHLY MAINT. AUGUST 2026 N/A | FLYNN BEC LP | $5,000 |
| Aug 27, 2026 | Medium Voltage Electrical Repair and Maintenance Unit Price 2026 MC-0322827 | Apex Electric Group LLC | $2,000,000 |
| Aug 27, 2026 | Mechanical & Plumbing SW-0322235 | MORGAN MECHANICAL INC | $350,000 |
| Aug 26, 2026 | Reserved Parking Updates PR-41379 | FOLEY SIGN CO | $18,279 |
| Aug 25, 2026 | MT3 Sewage Clean and Sanitize | BIO CLEAN INC | $8,138 |
| Aug 25, 2026 | 2 Rooms/Ramp Area Sanitization | BIO CLEAN INC | $7,600 |
| Aug 21, 2026 | Exterior Painting Air Cargo Road Building SW-0322875 | PURCELL PAINTING & COATINGS | $350,000 |
| Aug 20, 2026 | Mechanical Rooms - Airport | BIO CLEAN INC | $9,216 |
| Aug 20, 2026 | 188th Duct Bank Crossing MC-0322665 | GARY MERLINO CONST CO INC | $5,987,000 |
| Aug 20, 2026 | NSAT Replacement Bottom Steps A-0000302828 | SCHNEIDER SIMPSON SHEET METAL | $9,621 |
| Aug 20, 2026 | (title withheld) PR-41538 | ATLAS COPCO COMPRESSORS LLC | $2,275 |
| Aug 18, 2026 | Remove and dispose of 5 derelict vessels at Salmon Bay Marina A-0000302758 | NEWALEN LLC | $56,791 |
| Aug 18, 2026 | Remove and dispose of a Sea Doo located at Shilshole Bay Marina. A-0000302770 | NEWALEN LLC | $3,818 |
| Aug 12, 2026 | Sound Insulation R&R Group 1(Bergstrom, Smith, and Tuor) MC-0322259 | G L Y CONSTRUCTION INC | $485,422 |
| Aug 12, 2026 | Seatac zone 3 C-00321808 | FLAGSHIP FACILITY SERVICES LLC | $5,699,477 |
| Aug 5, 2026 | ITB#26-58 PIER 69 CPT & UPHOLSTERY CLEANING S-00322857 | NFI ENTERPRISES LLC | $34,212 |
| Aug 4, 2026 | Phragmites Control A-0000302727 | Woodland Resource Services Inc | — |
| Aug 4, 2026 | Electrical Unit Price Portwide 2025-2 SW-0322394 | LIGHTS INC | — |
| Aug 3, 2026 | South Concourse Evolution SCE A Concourse Relocation MC-0322259 | G L Y CONSTRUCTION INC | $302,787 |
| Jul 31, 2026 | Commercial Kitchen Exhaust Cleaning AUGUST2026 | APEX HOOD CLEANING INC | $1,971 |
| Jul 30, 2026 | WO# 407242 International Place (Formerly SeaTac Office Center) Valve Replacement - Zone 5 407242 | SIGNATURE LANDSCAPE SVCS LLC | $704 |
| Jul 28, 2026 | PCS Yard Crew Break Trailer C-0000302682 / 1647885 / 27323 | GUARDIAN SECURITY SYSTEMS INC | $3,668 |
| Jul 28, 2026 | SFH 2026 Program Group 1 (Hoang and Pankratz) MC-0322259 | G L Y CONSTRUCTION INC | $287,445 |
| Jul 27, 2026 | BWA2 FIS Port of Seattle NFPA 25 Insp P-00322124 SII - 44OP-416395 | SIEMENS INDUSTRY INC | $199,995 |
| Jul 25, 2026 | BAS LOST COMM W/ALL DEVICES 260709-0143 | MACDONALD-MILLER FAC SOLNS LLC | $1,034 |
| Jul 24, 2026 | 26-47 Crew Gangways #13 and #14 A-0000302542 | CMI / DBA Mantle Industries LLC | $80,181 |
| Jul 24, 2026 | (title withheld) PR-41163 | COLE INDUSTRIAL INC | $2,754 |
| Jul 24, 2026 | (title withheld) PR-41163 | COLE INDUSTRIAL INC | $2,754 |
| Jul 24, 2026 | REGULATED MATERIALS ABATEMENT PORTWIDE UNIT PRICE MC-0322347-001 | NORTHWEST ABATEMENT SRVCS INC | — |
| Jul 22, 2026 | T106 PRESSURE WASH ROOF N/A | FLYNN BEC LP | $14,703 |
| Jul 21, 2026 | T106 MONTHLY MAINT. JULY 2026 N/A | FLYNN BEC LP | $5,000 |
| Jul 16, 2026 | Annual Services & Troubleshooting C-0000302501 | POWER SYSTEMS WEST LLC | $48,395 |
| Jul 15, 2026 | Preventative Maintenance C-00322884 | Erickson Refrigeration LLC | $10,714 |
| Jul 15, 2026 | Ticketing Level - TSA Specical Items Signage Update PR-40950 | EVERGREEN SIGN COMPANY | $10,000 |
| Jul 14, 2026 | Crane repairs PR-40311 | E&H FLUID POWER LLC | $7,000 |
| Jul 13, 2026 | TERM 91 - DIAG LOW OIL PRESSURE - FAULT - TS ALARM PO#: A-0000301887 | PACIFIC POWER GROUP LLC | $5,688 |
| Jul 8, 2026 | SeaTac zone 2 C-00320728 | FLAGSHIP FACILITY SERVICES LLC | $12,117,660 |
| Jul 8, 2026 | (title withheld) A-0000302478 | COLE INDUSTRIAL INC | $13,823 |
| Jul 6, 2026 | Dewater, remove and store sailboat A-0000302549 | NEWALEN LLC | $4,146 |
| Jul 2, 2026 | 2024 Flight Corridor Management Program MC-0322845 | BRIGHTVIEW LANDSCAPES LLC | $1,159,721 |
| Jul 1, 2026 | TELECOMMUNICATIONS UNIT PRICE PORTWIDE 2026-1 SW-0322771 | EVERGREEN TECHNOLOGIES INC | $350,000 |
| Jun 29, 2026 | Emergency Repair Construction for Fender Repairs Terminal 18 NE MC-0322874 | MANSON CONSTRUCTION CO | $2,000,000 |
| Jun 26, 2026 | (title withheld) 260617-0116 | MACDONALD-MILLER FAC SOLNS LLC | $2,109 |
| Jun 26, 2026 | T106 MONTHLY MAINT. JUNE 2026 N/A | FLYNN BEC LP | $5,000 |
| Jun 17, 2026 | DECEASED MAMMAL RECOVERY - SHILSHOAL BAY MARINA | GLOBAL DIVING AND SALVAGE INC | $3,500 |
| Jun 17, 2026 | PORT OF SEATTLE STS REFACING PHASE 2 OS-150035 | TUBE ART DISPLAYS INC | $19,556 |
| Jun 17, 2026 | Seatac zone 3 C-00321808 | FLAGSHIP FACILITY SERVICES LLC | $6,662,822 |
| Jun 17, 2026 | FISHERMANS SKIFF RECOVERY | GLOBAL DIVING AND SALVAGE INC | $6,000 |
| Jun 15, 2026 | (title withheld) 003913 | TROWBRIDGE LLC | $500,000 |
| Jun 15, 2026 | Telecommunications Unit Price Portwide 2025-1 SW-0322071 - 01 | EVERGREEN TECHNOLOGIES INC | $350,000 |
| Jun 9, 2026 | Global Entry A-0000302321 | GDS SIGN & AWNING LLC | $15,000 |
| Jun 9, 2026 | DECEASED MAMMAL RECOVERY - SHILSHOAL BAY MARINA | GLOBAL DIVING AND SALVAGE INC | $3,000 |
| Jun 8, 2026 | Generator Controls - BES MC-0322063 | E C COMPANY | $4,085,880 |
| Jun 7, 2026 | TERM 91 - Diagnose low oil troubleshoot alarm with load PO#: A-0000301887 | PACIFIC POWER GROUP LLC | $2,369 |
| Jun 5, 2026 | HVAC Mechanical and Plumbing Portwide Unit Price 2025-2 MC-0322362 | HOLADAY PARKS INC | $1,500,000 |
| Jun 5, 2026 | EV Charging Stations Unit Price 2025 SW-0322232 | Apex Electric Group LLC | $349,999 |
| Jun 4, 2026 | North STIA Monthly Landscape Maintenance - Extension to SW-0322285 SEATTLE, PORT OF | BRIGHTVIEW LANDSCAPES LLC | $350,000 |
| Jun 4, 2026 | Regulated Materials Abatement (RMM) Unit Price Portwide 2026 SW-0322291 | PERFORMANCE ABATEMENT SRVC INC | $350,000 |
| Jun 2, 2026 | PROJECT N99944 C-00322084 | Underground Detection Services, Corp | $3,400 |
| Jun 2, 2026 | PROJECT 4100 C-00322084 | Underground Detection Services, Corp | $1,700 |
| May 29, 2026 | Boiler Room Upgrades MC-0322277 | APEX MECHANICAL LLC | $1,924,000 |
| May 28, 2026 | D5 PLB Replacement - Mechanical Subcontracts MC-0321199 | PSF MECHANICAL INC | $88,000 |
| May 28, 2026 | D5 PLB Replacement - Mechanical Self-Perform MC-0321199 | PSF MECHANICAL INC | $96,000 |
| May 26, 2026 | WO# 382097 International Place (Formerly SeaTac Office Center) Irrigation Startup Eval 2026 382097 | SIGNATURE LANDSCAPE SVCS LLC | $3,498 |
| May 20, 2026 | D5 PLB Removal/Install PR-40476 | NESS CRANES | $835 |
| May 18, 2026 | Compactor Maintenance C-00321425 | BLANKENSHIP EQUIP REPAIR INC | $165,600 |
| May 18, 2026 | T-91 Cruise Bldg. High Bay Lighting - Direct Contract SW-0322669 | LUMENAL LIGHTING LLC | $149,543 |
| May 18, 2026 | Asphalt Paving and Striping Unit Price Portwide 2026-2027 MC-0322307-C02 | NORTHWEST ASPHALT INC | — |
| May 15, 2026 | Door Issues 1089257 | Johnson Controls Bldg Sol LLC | $1,017 |
| May 14, 2026 | PLB Gate D5 Removal PR-40320 | NESS CRANES | $27,266 |
| May 14, 2026 | (title withheld) A-0000302030 | COLE INDUSTRIAL INC | $5,524 |
| May 14, 2026 | PLB Gate D5 Installation PR-40344 | NESS CRANES | $37,785 |
| May 13, 2026 | (title withheld) MC - 0322149 | PACIFIC PILE & MARINE LP | $12,000,000 |
| May 12, 2026 | SEATTLE TERMINAL 91-Diagnose low oil troubleshoot alarm A-0000301887 | PACIFIC POWER GROUP LLC | $1,605 |
| May 8, 2026 | General Contractor Unit Price Portwide 2026 SW-0322708 | LUMANK INC | $350,000 |
| May 7, 2026 | Airfield habitat improvement project C-00322774 | Timberline Silvics | — |
| May 2, 2026 | PoSMM JCI FA Tech Support S-0000301604 | JOHNSON CONTROLS FIRE PRTTN LP | $25,000 |
| Apr 29, 2026 | Seattle Tacoma International Airport Custodial Services Zone 1 C 00322274 | Diverse Facility Solutions WA LLC | $8,300,000 |
| Apr 29, 2026 | Seattle Tacoma International Airport Custodial Services Zone 5 C 00319907 | Diverse Facility Solutions WA LLC | $23,000,000 |
| Apr 28, 2026 | CONCOURSE C BUILDING HEAT PUMPS MAINTENANCE SERVICE C-00322748 | WESTERN MECHANICAL & CONTROLS | $49,263 |
| Apr 23, 2026 | (title withheld) 53086 | SCHNEIDER SIMPSON SHEET METAL | $9,494 |
| Apr 17, 2026 | (title withheld) A-0000301969 | COLE INDUSTRIAL INC | $3,045 |
| Apr 17, 2026 | (title withheld) A-0000301959 | COLE INDUSTRIAL INC | $3,045 |
| Apr 16, 2026 | (title withheld) 2120 | SME SOLUTIONS LLC | — |
| Apr 16, 2026 | WO# 311164 International Place (Formerly SeaTac Office Center) Valve Repair Controller 002B 311164 | SIGNATURE LANDSCAPE SVCS LLC | $315 |
| Apr 15, 2026 | Pier 66 Troubleshoot VRV Not Cooling PR-39756 | DAIKIN COMFORT TECH DISTR INC | $923 |
| Apr 13, 2026 | Remove and dispose of a 62' Vessel ' Captain Cook' from Fisherman's Terminal. 16122 PO# A-0000301716 | NEWALEN LLC | $69,603 |
| Apr 13, 2026 | Remove and dispose of 2 Category C vessels at Salmon Bay Marina. 16122 PO# A-0000301725 | NEWALEN LLC | $53,083 |
| Apr 13, 2026 | Remove and dispose of a 65' vessel 'Galant Lady' in Fisherman's Terminal. 16122 PO# A-0000301757 | NEWALEN LLC | $67,863 |
| Apr 13, 2026 | Remove and dispose of a 38' Sailboat (WN1725NF) from Harbor Island Marina. 16122 PO# A-0000301749 | NEWALEN LLC | $19,562 |
| Apr 13, 2026 | Remove and dispose of a 55' vessel 'Antonia' in Fisherman's Terminal. 16122 PO# A-0000301755 | NEWALEN LLC | $48,045 |
| Apr 10, 2026 | Mechanical and plumbing unit price Portwide SW-0322056 | PSF MECHANICAL INC | $350,000 |
| Apr 10, 2026 | 83220-3 - T5 Reefer Substations Fire System Radio Installs PO#a-0000301928 | GUARDIAN SECURITY SYSTEMS INC | $9,203 |
| Apr 9, 2026 | MT$F-5F Elevator Chilled Water Lines Relocaiton SW-0322056 | PSF MECHANICAL INC | $55,798 |
| Apr 9, 2026 | Pumphouse Valve and Vent Replacement SW-0322056 | PSF MECHANICAL INC | $175,000 |
| Apr 9, 2026 | Boiler Repair - Broadview Thompson PO# 7800002376 | PSF MECHANICAL INC | $12,422 |
| Apr 7, 2026 | WTC Suite 450 0 | CTI CONSTRUCTION INC | $41,000 |
| Apr 6, 2026 | (title withheld) C-00322084 | Underground Detection Services, Corp | $1,700 |
| Apr 4, 2026 | PORT OF SEATTLE - TERM 91 - DIAG LOW OIL PRESSURE FAULT WSC 06225 - PR-39690 | PACIFIC POWER GROUP LLC | $1,714 |
| Apr 4, 2026 | Port of Seattle Spot Light Dios A-0000301851 | Devil Dog Installations LLC | $15,000 |
| Apr 3, 2026 | 2026 Airfield Projects - Contract 1 MC-0322091 | SCARSELLA BROS INC | $16,944,944 |
| Apr 3, 2026 | TV service install/fber 206-789-7734 | VALLEJO ENTERPRISES | $30,824 |
| Apr 1, 2026 | Remove and dispose of a 54' vessel Viboco. A-0000301711 | NEWALEN LLC | $53,603 |
| Apr 1, 2026 | Remove and dispose of a 40' vessel at Shilshole Marina A-0000301745 | NEWALEN LLC | $30,729 |
| Apr 1, 2026 | (title withheld) CP12026 | M L FOX CONSTRUCTION LLC | $41,842 |
| Apr 1, 2026 | Remove and dispose of 2 vessels located at Salmon Bay Marina A-0000301731 | NEWALEN LLC | $21,046 |
| Mar 30, 2026 | Small Construction Projects 2023 MC-0321238 | CENTENNIAL CONTRACTORS ENT INC | $489,835 |
| Mar 27, 2026 | SeaTac Office Center 2026/2027 Landscape Maintenance SeaTac Office Center 2026/2027 Landscape Maintenance | SIGNATURE LANDSCAPE SVCS LLC | $41,097 |
| Mar 26, 2026 | PIER 69 UNDER DOCK PR #39465 | WESCO Distribution | — |
| Mar 26, 2026 | EV Chargers for Fleet MC-0322042 | RESOUND ENERGY LLC | $699,969 |
| Mar 25, 2026 | (title withheld) 39535 | INDUSTRY GRAPHICS | $7,088 |
| Mar 24, 2026 | T106 EMERGENCY ROOF CLEAN N/A | FLYNN BEC LP | $14,509 |
| Mar 24, 2026 | Remove & dispose of 3 Category B vessels from Shilshole Bay Marina 16122 PO#301669 | NEWALEN LLC | $17,020 |
| Mar 23, 2026 | Cruise Ship Shore Power Maintenance C-00322313 | WATTS MARINE LLC | $299,997 |
| Mar 23, 2026 | MIC FA System N10877 (75350-0043) MC-0321238 | CENTENNIAL CONTRACTORS ENT INC | $295,749 |
| Mar 19, 2026 | Port of Seattle - Concourse D Mop Sink Replacement SW-0322056 | PSF MECHANICAL INC | $7,427 |
| Mar 19, 2026 | Port of Seattle FIFA City Dressing PR-39474 | Devil Dog Installations LLC | $37,000 |
| Mar 19, 2026 | D7 PLB Column & Rotunda removal PR-39478 | NESS CRANES | $38,848 |
| Mar 19, 2026 | D7 Hauling from Seatac to Binford Metals PR-39418 | NESS CRANES | $835 |
| Mar 19, 2026 | Port of Seattle - PLB A2 Replacement MC-0321199 | PSF MECHANICAL INC | $191,000 |
| Mar 19, 2026 | 83220-1 Amenities Building A-0000301650 | GUARDIAN SECURITY SYSTEMS INC | $3,673 |
| Mar 17, 2026 | Fire Suppression Systems Maintenance and Repairs Unit Price - 2025 SW-0321746 | SIEMENS INDUSTRY INC | $350,000 |
| Mar 16, 2026 | Electrical On-Call Portwide 2021 SW-0320738 | Apex Electric Group LLC | $288,757 |
| Mar 16, 2026 | FV QUAKER MAID REMOVAL | GLOBAL DIVING AND SALVAGE INC | $510,000 |
| Mar 13, 2026 | MARINE MAINTENANCE A-0000301602 | ALL CITY FENCE CO | $1,106 |
| Mar 12, 2026 | CNG Station Maintenance & Repair Services C-00320797 | CLEAN ENERGY CORP | $136,693 |
| Mar 12, 2026 | POS STIA AOB Flr 2 HVAC Mod SW-0320817 | PSF MECHANICAL INC | $300,000 |
| Mar 9, 2026 | ELECTRICAL ON-CALL PORTWIDE 2022-4 / 2022-5 SW-0321156 / SW-0321157 | Apex Electric Group LLC | $300,000 |
| Mar 9, 2026 | Electromagnetic Bird Deterrent Installation A-0000301562 | W B SPRAGUE CO INC | $23,586 |
| Mar 6, 2026 | T106 MONTHLY MAINT. MARCH N/A | FLYNN BEC LP | $5,000 |
| Mar 6, 2026 | (title withheld) C-00322084 | Underground Detection Services, Corp | $1,700 |
| Mar 5, 2026 | GREASE VAULT PUMP 0000300659 | CLEAN HARBORS ENVIRON SVC INC | — |
| Mar 4, 2026 | Pier 90-91 A-0000301598 | NESS CRANES | $16,709 |
| Mar 4, 2026 | D7 PLB Removal & Replacement - Mechanical MC-0322055 | PSF MECHANICAL INC | $180,000 |
| Feb 26, 2026 | General Contractor Unit Price Portwide 2024 SW-0322083 | LUMANK INC | $129,202 |
| Feb 26, 2026 | International Place Tenant Move out SA_02.11.2026 | J E CUMMING CORP | $7,960 |
| Feb 18, 2026 | Pier 66 BAS TS 26-13038892 | TRANE | $11,298 |
| Feb 18, 2026 | Terminal 5 BAS Troubleshoot 26-13038567 | TRANE | $2,513 |
| Feb 17, 2026 | Parking Lot A Sign A-0000301477 | INDUSTRY GRAPHICS | $7,163 |
| Feb 16, 2026 | Widen Arrivals Roadway Wall Art Project FA-0322237 | MIGHTY TIETON PRODUCTION LLC | $60,000 |
| Feb 13, 2026 | 81186-6 - FT MINC Building AES Radio Install PO#c-000300302 | GUARDIAN SECURITY SYSTEMS INC | $1,525 |
| Feb 12, 2026 | (title withheld) 1955 | SME SOLUTIONS LLC | — |
| Feb 11, 2026 | WO# 367591 International Place (Formerly SeaTac Office Center) Drip Irrigation Repair & Shrub Bed Restoration (Approx. 9 Linear Feet) 367591 | SIGNATURE LANDSCAPE SVCS LLC | $2,411 |
| Feb 11, 2026 | WO# 365070 International Place (Formerly SeaTac Office Center) Tree Staking and Stabilization 365070 | SIGNATURE LANDSCAPE SVCS LLC | $350 |
| Feb 11, 2026 | WO# 365181 International Place (Formerly SeaTac Office Center) Drip Irrigation Repair and Shrub Restoration 365181 | SIGNATURE LANDSCAPE SVCS LLC | $1,688 |
| Feb 6, 2026 | Shihole Bay Marina A-0000300709 | WESSCO | $142,876 |
| Feb 5, 2026 | On-Call Snow Removal Remove Landside Locations C-00321570 | S C I INFRASTRUCTURE LLC | $35,000 |
| Feb 5, 2026 | Bell St Garage Parking Equipment Replacement 0000 | FlashParking Inc | $239,730 |
| Feb 4, 2026 | 2026 Airfield Projects - Contract 2 MC-0322419 | KLB CONSTRUCTION LLC | $10,026,151 |
| Feb 3, 2026 | SUBSURFACE UTILITY ENGINEERING (SUE) SERVICES C-00322465 | RECONN HOLDINGS LLC | — |
| Feb 3, 2026 | (title withheld) C-00322084 | Underground Detection Services, Corp | $3,400 |
| Feb 3, 2026 | Snow Storage Expansion (SSE) Phase II MC-0321610 | SCARSELLA BROS INC | $3,972,697 |
| Jan 30, 2026 | T106 MONTHLY MAINT. FEBRUARY N/A | FLYNN BEC LP | $5,000 |
| Jan 28, 2026 | Year 3 C-00321522 | FLOHAWKS | — |
| Jan 27, 2026 | Fishermen's Terminal (FT) C15 Plumbing Access & Investigation MC-0321238 | CENTENNIAL CONTRACTORS ENT INC | $477,339 |
| Jan 27, 2026 | (title withheld) PO0000020352 | MASCOTT EQUIPMENT CO INC | $6,256 |
| Jan 26, 2026 | Dock & Piling Repair Unit Price Seaport 2026 SW-0322590 | AMERICAN CONST CO INC | $350,000 |
| Jan 26, 2026 | Annual Compliance, Seaview and Horton | MASCOTT EQUIPMENT CO INC | $19,342 |
| Jan 23, 2026 | DECEASED MAMMAL RECOVERY - NEAR CENTENNIAL PARK | GLOBAL DIVING AND SALVAGE INC | $2,000 |
| Jan 21, 2026 | 18229f SBMA 1 Bldg 182295 | GUARDIAN SECURITY SYSTEMS INC | $597 |
| Jan 20, 2026 | (title withheld) 42468327 | KONE INC | $1,974 |
| Jan 20, 2026 | (title withheld) 1512022232 | KONE INC | $3,217 |
| Jan 16, 2026 | Utility Meter Networking MC-0322261 | Veca Electric & Tech LLC | $9,834,600 |
| Jan 16, 2026 | A4 PLB Removal & Replacement - Mechanical MC-0322055 | PSF MECHANICAL INC | $172,644 |
| Jan 16, 2026 | Flying Foods Water Meter and RPBP Upgrade SW-0322056 | PSF MECHANICAL INC | $25,860 |
| Jan 16, 2026 | 400 Hz Replacement Concourse C & D - BES MC-0322138 | M A MORTENSON COMPANY | $16,781,001 |
| Jan 15, 2026 | PIER 66 CH-1 OIL HEATER 26-12826812 | TRANE | $3,567 |
| Jan 14, 2026 | SEA CUSTODIAL SERVICES � ZONE 4 C-00321305 | Sanitors Services, Inc. | $14,330,517 |
| Jan 14, 2026 | Gasboy Islander Prime Upgrade A-0000298727 | NWESTCO LLC | $33,926 |
| Jan 13, 2026 | BA SERVICE AGREEMENT SEABASI-SEATTLE-TACOMA AIRPORT C-00320813 SII - 2600094124 | SIEMENS INDUSTRY INC | $912,446 |
| Jan 13, 2026 | T106 MONTHLY MAINT. JANUARY N/A | FLYNN BEC LP | $5,000 |
| Jan 12, 2026 | A4 Hauling from Seatac to Binford Metals PR-38454 | NESS CRANES | $685 |
| Jan 11, 2026 | TV service install 206-7897734 | VALLEJO ENTERPRISES | $6,800 |
| Jan 9, 2026 | 81186-4 - Aviation Blsg 154C AES Radio Install c-003225554 - PO c-0000301032 P | GUARDIAN SECURITY SYSTEMS INC | $3,785 |
| Jan 9, 2026 | Upper Drive Sidewalk Coatings Seattle-Tacoma International Airport (STIA) Unit Price 2025 SW-0322592 | F D THOMAS INC | $350,000 |
| Jan 7, 2026 | A4 PLB & Column Install PR-38294 | NESS CRANES | $29,159 |
| Jan 7, 2026 | A4 PLB & Column Removal PR-38466 | NESS CRANES | $30,006 |
| Jan 6, 2026 | (title withheld) C-00322084 | Underground Detection Services, Corp | $2,550 |
| Jan 6, 2026 | (title withheld) C-00322084 | Underground Detection Services, Corp | $2,250 |
| Jan 2, 2026 | Garage Directories 50 units 206-638-7644 | Graphic Display Sign & Awning | $35,650 |
| Dec 31, 2025 | Landscape Maintenance STIA South Area Unit Price - 2025 SW-0322310 | SIGNATURE LANDSCAPE SVCS LLC | $137,316 |
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
Alphabetical order; the 25 contractors with the most filings on this agency's projects, prime and subcontractors together.