Green Business Listings

475's mission is to supply essential materials, building components, and knowledge that will lead a transformation of the North American construction industry toward making durable high-performance, Passive House and zero-energy buildings.

Balderston Associates provides comprehensive third-party verification, energy modeling, code compliance, training, and other sustainable building technical expertise. We participate in the following third-party certification programs: LEED, Built Green, Passive House (PHIUS+), ENERGY STAR, Net Zero Homes, HERS, and more. We work with builders, developers, non-profits, and homeowners to help provide sustainable building technical expertise for projects in WA.

Built Green is the green home certification program of the Master Builders Association of King and Snohomish Counties. In addition to certifying green homes, remodels, apartments, and communities, we host a membership network of companies and individuals involved in the green building industry.

Greenhome Solutions is a family owned and operated green building product supplier based in Seattle, Washington. We are passionate about the environment, conservation, design, and sustainable building practices. With over 20 years in the construction industry, we pride ourselves not only on product knowledge, but also on installation techniques and knowing which green building materials are right for your project.

Experienced designer of green, ultra-low energy residential renovations and new construction of houses, cabins, backyard cottages, multigenerational housing, outbuildings and more.

ming | architecture and design was founded by Grace Huang in 2001 to specialize in sustainable and healthy home building practices. Our projects are located throughout the Puget Sound region and our work has been recognized by green building programs and publications. Our custom home projects range from small remodels to whole new houses. We think of ourselves as the owners' coach and guide in the building process, and approach the house as a tailor would a well-fitted garment - the house needs to look and feel great for those living in it.

Northwest Partners offers a wide variety of products that help conserve electricity, reduce the use of fossil fuels, and increase building capacity for car charging, with the goal of creating a clean and sustainable environment in the Pacific Northwest, and beyond.

We are Solar Experts. Our lead electrician, Briggs Nieman, is a NABCEP-certified solar installer and a professional electrician who grew up living off-grid. He has been installing solar, as a supervising electrician for over 12 years.

The Tribal Healthy Homes Network team has a mission and that is to educate and empower tribal communities, enabling them to build healthy homes, prevent disease and promote wellness.

Our Mission...is to promote healthy tribal homes, families and communities, by bridging tribes with one another, and by serving as a clearinghouse for technical support, program guidance, resources, and funding. 

Our Philosophy... centers around the belief that one of the most expensive, harmful and intractable environmental challenges stems from the contaminants found in the indoor environment and ambient air. These contaminants are a contributing factor to the epidemic of asthma and lung diseases among American Indian/Alaska Native populations. 

Our Challenge...is to critically examine the underlying policies that contribute to the problem (housing, public health, economic development, energy), dialogue and partner with leaders in those sectors, then collectively work to develop cost-effective, evidence-based, sustainable programs and practices.