| Aztech Electric, Inc.: Northwest electrical contractor company founded in 1968. Links and information on services, projects, and affiliations. Offices in Spokane and Woodinville. |
| Dependable Building Maintenance: Building maintenance and janitorial service with offices in Bellevue, Everett, Kelso, Longview, Redmond, Seattle, Silverdale, Tacoma, Vancouver and Portland, Oregon. |
| Lydig Construction Inc.: Commercial contractors and construction management company specializing in industrial, building and concrete projects, with offices in Bellevue and Spokane. |
| National Electrical Contractors Association - NECA - Cascade Chapter: Organization for electrical contractors located in or traveling to northwestern and north central Washington. |
| Northwest Architectural Company: A firm of over 120 professionals led by 17 principal architects with offices in Seattle and Spokane. |
| Southwest Washington Chapter - NECA: Serves six southwest Washington counties. Member-firms are electrical contractors serving many communities in the South Puget Sound area. |
| The Jacob Flooring Directory of Washington State: A directory of flooring dealers for the state |
| Thermall Heating & Cooling: Install, maintain, and repair residential climate control systems in new and older homes. Offices in Woodinville and Ellensburg. |
| TNJ Resource.com - Washington State Construction Directory: Directory includes architects, engineers, contractors, construction supplies, home furnishings and planning/building departments. |
| Washington Asphalt Pavement Association - WAPA: Represents hot mix asphalt producers within the state. Features pavement guides, conferences and scholarships. |
| Washington State Floor Covering Association: Their mission is to educate, inform and unify the floor covering industry in the state. |
| Washington State House Cleaners Association: An association of companies providing house cleaning, maid service and housekeeping services. |
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