Chamber of Commerce
- City of Bellevue - Bellevue Chamber of Commerce
- City of Bothell - Bothell Chamber of Commerce
- City of Edmonds - Edmonds Chamber of Commerce
- City of Everett - Everett Chamber of Commerce
- City of Issaquah - Issaquah Chamber of Commerce
- City of Kirkland - Kirkland Chamber of Commerce
- City of Redmond - Greater Redmond Chamber of Commerce
- City of Seattle - Seattle Chamber of Commerce
- City of Snohomish - Snohomish Chamber of Commerce
- Bellevue School District - Beaux Arts, Bellevue, Clyde Hill, Hunts Point, Kirkland, Medina, New Castle, Redmond, Yarrow Point
- Edmonds School District - Brier, Edmonds, Lynnwood, Mill Creek, Mount Lake Terrace, Woodway
- Everett School District - Everett, Mill Creek
- Issaquah School District - Bellevue, Issaquah, New Castle, Renton, Sammamish
- Lake Stevens School District - Lake Stevens, Marysville
- Lake Washington School District - Bellevue, Bothell, Kenmore, Kirkland, Redmond, Sammamish, Woodinville
- Monroe School District - Monroe
- Mukilteo School District - Everett, Mill Creek, Mukilteo
- Northshore School District - Bothell, Kenmore, Lake Forest Park, Woodinville
- Riverview School District - Carnation, Duvall
- Seattle School District - Tukwila, Seattle
- Shoreline School District - Lake Forest Park, Shoreline
- Snohomish School District - Everett, Monroe, Snohomish
Everett AquaSox - Mariners' Class "B" affiliate- Everett Silvertips - WHL
- Rat City Roller Girls - All-female flat-track roller derby league
- Seattle Mariners - MLB - American League
- Seattle Seahawks Football - NFL
- Seattle Sounders - Men's Soccer, A-League
- Seattle Storm Basketball - Women's NBA
- Seattle Thunderbirds - WHL
- Tacoma Raniers - Mariners' "AAA" affiliate
- Washington Stealth - NLL
- Seattle Weather - King 5 News Weather Report
