NAICS 541330 · Washington

Certified Women-Owned Engineering Services in Washington

30 certified women-owned vendors in Washington under NAICS 541330 (Engineering Services), each with an active WOSB or EDWOSB certification reported from the U.S. SBA Small Business Search.

30 certified vendors · ranked by certification recency & profile depth

01RJS CONSTRUCTION INC

Construction & Trades · Union Gap, Washington
SBA-certified WOSB
WOSB

RJS Construction, Inc. is a Woman & Native American Owned Small Business (WOSB & ISBEE) full-service general contractor founded in 1990 by Shannon & Richard Sevigny. For 36 years, RJS has successfully delivered general…

02RJS CONSTRUCTION, INC

Construction & Trades · Vancouver, Washington
SBA-certified WOSB
WOSB

RJS Construction, Inc. is a Woman & Native American Owned Small Business (WOSB & ISBEE) full-service general contractor founded in 1990 by Shannon & Richard Sevigny. For 36 years, RJS has successfully delivered general…

03STELL ENVIRONMENTAL ENTERPRISES INC

Environmental & Waste Services · Redmond, Washington
SBA-certified WOSB, SDVOSB, VOSB
WOSBSDVOSBVOSB

Environmental Services: HTRW, Ecological Engineering, NEPA, Cultural, Natural, site characterization and assessments, geologic and hydrogeologic studies, remediation, MEP engineering, permitting, wetlands, NEPA…

05TETATZIN ENTERPRISES LLC

Engineering & Architecture · Tacoma, Washington
SBA-certified WOSB, SDVOSB, VOSB
WOSBSDVOSBVOSB

Engineering and management consulting services. Comprehensive solutions, program delivery and support for responsible growth in urban and rural towns, cities, counties, and military installations in the Puget Sound…

08GUARDIANX LLC

Professional & Management Consulting · Seattle, Washington
SBA-certified WOSB
WOSB

GuardianX LLC is a woman-owned small business based in Seattle, WA, specializing in advanced safety technologies, AI-driven research, and educational innovation. Our company designs and supplies intelligent protective…

12PACIFIC RIM ENVIRONMENTAL, INC.

Environmental & Waste Services · Seattle, Washington
SBA-certified WOSB
WOSB

PacRim specializes in hazardous material consulting and project management in the greater Seattle area. The firm is locally owned and brings a wealth of experience to its services. The team at PacRim includes skilled…

13DODDA CORPORATION

Construction & Trades · Bellevue, Washington
SBA-certified WOSB
WOSB

dodda.ai is a SaaS product for AEC industry to streamline the permit process by automatically flagging potential code compliance issues in building drawings, saving your valuable time by at least 50%. We combine our…

15OKEAN SOLUTIONS INC

Engineering & Architecture · Seattle, Washington
SBA-certified WOSB
WOSB

Operating since 2010 to provide: Aerospace Systems Engineering Consulting, Software Integration and Test, IT Development & IT Support, Business Apps. Our product line centers around a unique fault detection and…

16FTECH LLC

Engineering & Architecture · Tacoma, Washington
SBA-certified WOSB, EDWOSB
WOSBEDWOSB

F-TECH is a new, certified women-owned, engineering firm, with a core focus on fulfilling high-value machining and technical contracts for prime contractors. Bringing together decades of experience in aerospace…

18HARRIS ENVIRONMENTAL GROUP, INC.

Environmental & Waste Services · Fircrest, Washington
SBA-certified WOSB, HUBZone
WOSBHUBZone

Environmental clearance and permitting for natural and cultural resource management, National Environmental Policy Act and hazardous waste investigations/removal. Natural resource experience includes: endangered species…

19JW3 BIOTECHNOLOGIES LLC

Research & Scientific Services · Bothell, Washington
SBA-certified WOSB
WOSB

• Provide strategic, operational, procurement, quality, regulatory, and CMC, talent development and leadership mentoring in the fields of Biotechnology, Pharmaceutical R&D, Analytical Testing & Clinical Trials from…

21ELYON INTERNATIONAL, INC.

IT & Software Services · Vancouver, Washington
SBA-certified WOSB, VOSB
WOSBVOSB

ELYON provides mission-focused digital modernization and mission support services that help organizations improve operational performance, strengthen decision-making, and maximize return on technology investments. Our…

22INFINITY FABRICATION, INC.

Manufacturing & Production · Marysville, Washington
SBA-certified WOSB
WOSB

Supplier of structural airplane parts and precision components for the aerospace and defense industries. Products are machined, formed and fabricated from aluminum, titanium, steel and other alloys for commercial and…

23PLATEAU GEOSCIENCE GROUP LLC

Environmental & Waste Services · Battle Ground, Washington
SBA-certified WOSB, EDWOSB
WOSBEDWOSB

Geophysical surveys, ground penetrating radar, environmental investigation and remediation, landfill closure and monitoring, site investigation for property development or engineering projects, stormwater engineering…

25POLESTAR TECHNICAL SERVICES INC

Environmental & Waste Services · Richland, Washington
SBA-certified WOSB
WOSB

Polestar Technical Services, Inc., specializes in risk reduction and liability solutions with a focus on clean up of high-hazard work environments to safely accelerate progress and reduce long-term costs.

27RC CONSTRUCTION SERVICES INC

Professional & Management Consulting · Richland, Washington
SBA-certified WOSB
WOSB

RCECM is a WOSB. We provide engineering,construction management, project management, environmental remediation, demolition support, construction inspection, cost engineering, project controls, and related services for…

30MAKERS ARCHITECTURE AND URBAN DESIGN LLP

Engineering & Architecture · Seattle, Washington
SBA-certified WOSB
WOSB

MAKERS is an award-winning architectural and urban design firm providing services to clients throughout the Pacific Northwest and the United States. Founded in 1972, the firm provides a client-oriented business approach…

Frequently asked

Are there certified women-owned NAICS 541330 vendors in Washington?

Yes — 30 certified women-owned vendors in Washington list NAICS 541330 (Engineering Services), each with an active WOSB or EDWOSB certification reported from the U.S. SBA Small Business Search and dated on each listing.