ኃላፊነት ያለባቸው ኮንትራክተሮች

የአየር ማረፊያ መንገደኞች አገልግሎቶች

Air Serv/ABM አቪዬሽን

Bags Inc.

C&W Industries

ERMC

G2

Huntleigh

Prospect Air

Whayne ኢንተርፕራይዞች

የፅዳት ስራ ተቋራጮች

A&A Maintenance Enterprise

Able Building Maintenance

ABM (King County, Eastside Tacoma)

ABM Aviation

ABM/Spokane

Alliance Building Services

Aramark Lumen Field

Blackstone

C & W አገልግሎቶች

Cascadian Building Maintenance, Ltd.

Diversified/Environmental አገልግሎቶች

EcoStaff Building Services

Evergreen የህንፃ አገልግሎቶች

Flagship የተቋም አገልግሎቶች

GDI Integrated የተቋም አገልግሎቶች

IFS (የፈጠራ የተቋም አገልግሎቶች, LLC)

Metropolitan የህንፃ ጥገና

Nationwide Janitorial Services, Inc. (NJSI)

Pacific Building Services, Inc.

Priority 1 ጥገና

SBM Site አገልግሎቶች (Somers)

WFF

Whayne ኢንተርፕራይዞች

Will’s የፅዳት አገልግሎቶች

የደህንነት ተቋራጮች

Allied Universal Security Services

American Guard አገልግሎቶች

B-Force

G4S Secure Solutions

Inter-con

PalAmerican Security

Securitas USA Inc.

Star Protection

ሌላ

Labor 1992 Corporation

Lakeside Schools

Prudent (formerly four Freedoms house)

Ryther Schools

Salon Bobbi and Guy

የሲያትል ቤቶች ባለስልጣን

የሲያትል ዩኒቨርሲቲ

የዋሽንግተን ግዛት የስብሰባ ማዕከል

Washington State Ferries

በጋራ ጠንካራ ነን።