NESEA Business Member Directory

The NESEA Business Member Directory includes all organizations that are NESEA Business and Academic Members.  Please let companies know that you learned about their business from the directory.

Select any desired filters, then click Apply to see the results.

Search Filters

Check boxes to limit your search to specific sectors
Check boxes to limit your search to a specific states
Check boxes to limit your search to specific specialties

Whole Forest

431 Deep Run Rd
Perkasie , Pennsylvania 18944
Phone: 845-649-2458

Surround yourself with the lush aesthetic of sustainable beauty. With our carbon-negative wall tiles, countertops, and tables you can catch a glimpse of the biodiversity living in Ecuador’s rainforest. That right, we said carbon-negative. Whole Forest’s products have the potential to dramatically lower the embodied energy of your project.

We manage every facet of the process, from forestry, to product manufacturing, to distribution. This is how we guarantee the highest level of craftsmanship, the protection of Ecuador’s tropical rainforests, and the economic growth of forest communities.

Contact one of our design specialists to receive catalogs, samples, and design support.

Sectors: Commercial, Institutional, Industrial, Multifamily, Single Family
Service Area: Entire Northeast Region
Professional Specialties: Carpentry/Cabinetry, Design/Build, Healthy Materials, Living Building Challenge, Net Zero

Willco Sales & Service, Inc.

18 King St.
Stratford , Connecticut 06615
Phone: 203-366-3895

Willco Sales and Service has been providing specialty product solutions to New England since 1957. We specialize in space management, daylighting, and compactor/chute/recycling systems. Our daylighting systems save electricity, stop solar heat gain, and redirect natural daylight deep into buildings. With quality products like Solatube, you can bring natural sunlight to anywhere in your home or business, while reducing your consumption of electricity. We are the top Solatube distributor in New England.

Sectors: Commercial, Institutional, Industrial, Multifamily, Single Family
Service Area: Entire Northeast Region
Professional Specialties: Lighting

Wolfworks, Inc.

195 W Main St., Ste. K
Avon , Connecticut 06001
Phone: 860-676-9238

We are guides. We guide a process for clients who are prepared to design and build collaboratively and responsibly. Together we create spaces that look great, work well, and feel good to be in.

Sectors: Single Family
Service Area: Connecticut
Professional Specialties: Deep Energy Retrofit, Design/Build, Historic Restoration

Wood to Stone LLC

17 Mahaiwe St.
Great Barrington , Massachusetts 01230
Phone: 413-822-5779

It is our mission to provide professional building services in a personal, affordable process to enable our clients to build, repair, or improve their home. The Wood to Stone family consists of a diverse and talented crew. We foster a team approach, and take great pride in our professionalism, integrity, and enthusiasm. Striving for excellence, we merge a strong work ethic with talent, producing the highest quality work in the most efficient manner. Most small projects are designed by our talented in-house team. For larger projects, we have a close team of subcontractors that work with us every step of the way. We love to keep our business local and community-oriented.

Sectors: Single Family
Service Area: Massachusetts
Professional Specialties: Carpentry/Cabinetry, Deep Energy Retrofit, Design/Build, Pavement/Masonry

World Class Supply

375 Wedgewood Rd.
Newark , Delaware 19711
Phone: 302-737-1441

Our mission is to supply our customers with building science consulting as well representing high performance products that will help lead to a change toward zero-energy buildings. We are passionate when it comes to "Passive House" and have certified passive consultants and builders on staff to help you with your projects. We offer training on building envelope air tightness systems as well as WUFI Hygrothermal Analysis and THERM modeling.

Sectors: Commercial, Institutional, Multifamily, Single Family
Service Area: Entire Northeast Region
Professional Specialties: Building Supply, Consulting, Net Zero, Passive House

Wright Builders, Inc.

48 Bates St.
Northampton , Massachusetts 01060
Phone: 413-586-8287

Wright Builders has been a leader in sustainable and high performance construction for over 45 years. In Western MA and Southern VT, we continue to bring creativity and ingenuity to every project regardless of size, striving for the highest quality and enduring value with a strong commitment to net zero ready, carbon neutral and sustainable construction. Our buildings are designed and constructed to protect and promote the health and wellness of its occupants, while reducing the overall impact of the construction on the environment.

Sectors: Commercial, Institutional, Multifamily, Single Family
Service Area: Massachusetts, Vermont
Professional Specialties: Building Envelope, Construction Management, Deep Energy Retrofit, Design/Build, Historic Restoration, Living Building Challenge, Net Zero, Passive House, Project Management, Remodeling/Renovation

Wyeth Architects, LLC

94 W Main St.
Chester , Connecticut 06412
Phone: 860-526-5111

Wyeth Architects is a Connecticut-based architectural firm. We design for residential, institutional, and commercial clients. Our work has received numerous awards for design excellence. With decades of experience in new construction, renovation, and restoration, we know how to work within your budget to create designs that look good and feel right. We offer complete architectural services, from design consultation to construction documents and construction administration, as well as specialty services: energy conservation, historic preservation, and help with municipal approval processes.

Sectors: Commercial, Institutional, Single Family
Service Area: Connecticut, Massachusetts, New York
Professional Specialties: Architecture, Community Planning, Construction Management, Consulting, Historic Restoration, Landscape Design, Net Zero, Passive House

Yestermorrow Design/Build School

7865 Main St.
Waitsfield , Vermont 05673
Phone: 802-496-5545

We teach the arts of design and building as an integrated process, and provide instruction in fundamental skills. We offer nearly 100 classes in Land & Community Planning, Whole Structure Design/Build, Building Systems & Building Science, Woodworking & Craft and Tutorials.

Sectors: Multifamily, Single Family
Service Area: Vermont
Professional Specialties: Education

Zehnder America, Inc.

6 Merrill Industrial Dr.
Unit 7
Hampton , New Hampshire 03842
Phone: 888-778-6701

Zehnder America provides high quality heating and ventilation solutions to promote comfortable, healthy, and energy-efficient indoor living. Zehnder America is a division of the Zehnder Group, headquartered in Switzerland. The Zehnder Group is represented worldwide and specializes in advanced heating, cooling, and ventilation technology.

Sectors: Single Family
Service Area: Entire Northeast Region
Professional Specialties: HVAC, Indoor Air Quality

ZeroEnergy Design

156 Milk St.
Ste. 3
Boston , Massachusetts 02109
Phone: 617-720-5002

ZeroEnergy Design creates beautiful, healthy buildings to empower families, uplift communities, and improve our living world. ZED was founded in 2005 with a commitment to deliver ecologically sensible architectural design for all clients as a best practice. To date, the firm has worked on hundreds of projects ranging from selective renovations to large new construction. Clients include homeowners, housing authorities, non-profit organizations, developers, and institutions. Our services: Architecture + Mechanical Design for Homes and Residential Buildings.

Sectors: Multifamily, Single Family
Service Area: Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, Rhode Island, Vermont
Professional Specialties: Architecture, Consulting, HVAC, Mechanical Systems, Net Zero, Passive House

Zilkha Center for Environmental Initiatives of Williams College

55 Mission Park Dr.
Williamstown , Massachusetts 01267
Phone: 413-597-4462

The Zilkha Center for Environmental Initiatives is committed to protecting and enhancing the natural and built environment in which we learn, work, and live. We research, investigate, support, promote and implement sustainability programs and educational initiatives. We work with faculty, staff and students, and local and national organizations to deepen our understanding of our impact on the earth’s resources and our responsibilities for developing a sustainable future. In working towards that future, we aim to support the global effort to advance environmental sustainability. At the core of our approach is the belief that sustainability means meeting the needs of our current generation without compromising the ability of future generations to meet their needs.

Sectors: Commercial, Institutional, Industrial, Multifamily, Single Family
Service Area: Massachusetts
Professional Specialties: Community Planning, Education, Research


The NESEA Business Member Directory is the premier referral resource for consumers and professionals looking for high-performance building and renewable energy professionals in the Northeast.

A listing in this directory is a benefit of NESEA Business or Academic Membership that results in increased visibility and referrals for our member organizations. The NESEA Business Member Directory is published online and in print (fall issue of BuildingEnergy magazine, circulation 3750). If you would like to be included in the directory, join NESEA today as a business member. Learn more.