NAICS 221310 · Washington

Certified Women-Owned Water Supply and Irrigation Systems in Washington

7 certified women-owned vendors in Washington under NAICS 221310 (Water Supply and Irrigation Systems), each with an active WOSB or EDWOSB certification reported from the U.S. SBA Small Business Search.

7 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…

03GUARDIANX 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…

05JMG CONSTRUCTORS LLC

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

25 years Constuction background with strong presence in Project management. Works with owners and agencies to minimize costs and help customers realize the completion of their projects in timeframes that lessen the…

06PART WORKS INC

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

As a wholesale plumbing specialties distributor, we are dedicated to being your trusted partner in facilities maintenance. We provide solutions supported by personal, reliable, and technical expertise to ensure you…

Frequently asked

Are there certified women-owned NAICS 221310 vendors in Washington?

Yes — 7 certified women-owned vendors in Washington list NAICS 221310 (Water Supply and Irrigation Systems), each with an active WOSB or EDWOSB certification reported from the U.S. SBA Small Business Search and dated on each listing.