| A |
| Anderson/Collier Architects | 1124 Northwest 50th Street, Phinney Ridge | acarchitect.com | | |
| Anima Architects, PLLC | 9030 35th Avenue Southwest, Delridge | animaarchitects.com | +1-206-552-5359 | |
| Atelier Drome LLP | 622 Western Avenue, Chinatown-International District | | | |
| B |
| B+H Architects | 225 Terry Avenue North, Cascade | bharchitects.com | | |
| bjarko serra | 7001 3rd Avenue Northwest, Phinney Ridge | bjarkoserra.com | | |
| Bosworth Hoedemaker | 6113 13th Avenue South, Van Asselt | | | |
| Brunner Architects | 85 Columbia Street, First Hill | | +1-206-371-8216 | |
| C |
| CB Anderson Architects | 7209 Greenwood Avenue North, Phinney Ridge | cba-arch.com | +1-206-782-2911 | |
| E |
| Ecco | 7413 Greenwood Avenue North, Greenwood | | | |
| Eggleston Farkasnot edited since 2021 | 1821 10th Avenue West, Queen Anne | eggfarkarch.com | | |
| F |
| Fora Landscape Architects | 1430 Northeast 65th Street, Ravenna | fora.land | +1 206-322-1732 | |
| G |
| Garret Cord Werner | 3132 Western Avenue, Belltown | garretcordwerner.com | | |
| GHA Landscape Architects | 1417 Northeast 80th Street, Green Lake | | +1-206-522-2334 | |
| H |
| H + dlT Collaborative LLC | 4200 Stone Way North, Wallingford | hdltcollaborative.com | +1-206-545-0700 | |
| I |
| Integrus Architecture | 117 South Main Street, Chinatown-International District | | +1-206-628-3137 | |
| J |
| Jackson | Main Architecture | 311 1st Avenue South, Chinatown-International District | | +1 206-324-4800 | |
| Jeffrey Taylor architects | Capitol Hill, no street on record | | | |
| JW Architects | 1257 South King Street, Yesler Terrace | jwaseattle.com | +1-206-953-1305 | |
| K |
| Krannitz/Gehl Architectsnot edited since 2015 | 765 Northeast Northlake Way, University District | | | |
| L |
| Lockhart Suver | 6201 Roosevelt Way Northeast, University Heights | | | |
| M |
| Mithun Architects | Belltown, no street on record | mithun.com | | |
| P |
| Patterson Whittaker Architectural Profilesnot edited since 2016 | 2716 Eastlake Avenue East, Wallingford | | | |
| Prentiss Architects | 220 West Galer Street, Queen Anne | | | |
| R |
| Runberg Architecture Group | 1 Yesler Way, Chinatown-International District | runberg.com | | |
| Ryan Rhodes Designs | 303 Nickerson Street, Fremont | ryanrhodesdesigns.com | | |
| S |
| Schemata Workshop | 1720 12th Avenue, Capitol Hill | schemataworkshop.com | +1-206-285-1589 | |
| SHKS Architectsnot edited since 2021 | 1050 North 38th Street, Fremont | | | |
| Shugart Wasse Wickwire Architects & Interiorsnot edited since 2019 | Fremont, no street on record | | | |
| SkB Architects | 2333 3rd Avenue, Belltown | skbarchitects.com | | |
| Sudo -Seattle | 3827 South Edmunds Street, Columbia City | | | |
| T |
| TCA | 6211 Roosevelt Way Northeast, Green Lake | | | |
| Thomas Cheney | 523 South Main Street, Chinatown-International District | thomascheneyarchitects.com | +1-206-708-5816 | |
| Tyler Engle Architects | 2126 Westlake Avenue, Cascade | tylerengle.com | | |
| U |
| Ueda Design Studio | 4022 Stone Way North, Wallingford | uedads.com | +1-206-485-3330 | |
| V |
| Vandeventer + Carlander Architects | 2956 Eastlake Avenue East, Wallingford | vc-arch.com | +1-206-323-8770 | |
| W |
| Weber Thompson | 900 North 34th Street, Fremont | | +1-206-344-5700 | |