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

377 Builders

PO Box 483
Housatonic , Massachusetts 01236
Phone: 413-429-6075

We are a member-owned general contracting company based in the Berkshires of Western Massachusetts. Our expertise is in residential and light commercial construction, including additions and full-scale renovations for your home or building. We also specialize in custom cabinetry and sustainable practices. We are a tech-savvy group that uses web-based project management tools which make collaboration an easy and enjoyable experience. We'll present you with the best options to suit your vision and resources whether innovative, traditional, or a blend of both.

Sectors: Single Family
Service Area: Massachusetts
Professional Specialties: Carpentry/Cabinetry, Design/Build, General Contractor, Remodeling/Renovation

475 High Performance Building Supply

334 Douglass St.
Brooklyn , New York 11217
Phone: 917-837-8487

475 High Performance Building Supply provides essential building knowledge and components to building professionals. 475 helps make more durable, resilient, ecological, and energy-efficient buildings that optimize occupant comfort and health. We enable the building improvements required to dramatically reduce our energy demand and address our climate crisis. We are an e-commerce-based catalyst in the transformation of US construction to high-performance, low-energy, and Passive House buildings. The name “475” is a reference to the heat demand requirement of the Passive House Standard, 4.75 kilo BTUs per square foot per year. Passive House is the gold standard for high performance construction today.

Sectors: Commercial, Institutional, Industrial, Multifamily, Single Family
Service Area: Entire Northeast Region
Professional Specialties: Building Supply, Healthy Materials, Insulation, Passive House, Windows

603 Solar

One New Hampshire Ave.
Suite 125
Portsmouth , New Hampshire 03801
Phone: 603-570-2607

603 Solar is a solar energy service based in Portsmouth, NH. We wanted to begin a solar company based on the values of integrity and honesty, providing an amazing customer experience and getting people the best return on investment. We pride ourselves on our educative approach to showing people the advantages of solar, and strive to get people the best return on investment.

Sectors: Single Family
Service Area: New Hampshire
Professional Specialties: Photovoltaics

A Yard & A Half Landscaping Cooperative, Inc.

26 Thayer Rd.
Waltham , Massachusetts 02453
Phone: 781-788-8855

A Yard & A Half Landscaping Cooperative was formed in 2013 to preserve and continue to develop a locally-owned, safe, just, and democratic workplace in an industry where workers often face exploitation, wage theft, and hazardous working conditions. Participation in the cooperative is a financial and career investment for members, not just a job. Worker-owners participate in professional development, learning transferable skills and creating economic growth and self-sufficiency. We also share in the profits of our labor, allowing us to reinvest in our own local economy, communities, and families.

Sectors: Single Family
Service Area: Massachusetts
Professional Specialties: Consulting, Landscape Design, Pavement/Masonry

Abode Energy Management

555 Virginia Rd.
Suite 202
Concord , Massachusetts 01742
Phone: 339-707-0984

Abode Energy Management is a boutique energy consulting firm driving efficiency improvements for New England’s built environment. We are passionate about helping our industry grow through a training-based, collaborative approach. Our collective experience in building performance, renewables, clean energy financing, utility program implementation, community engagement, and workforce development form the foundation that enables us to deliver data-driven results for our partners and clients.

Sectors: Multifamily, Single Family
Service Area: Massachusetts
Professional Specialties: Building Envelope, Certification/Commissioning, Consulting, Consumer Information, Deep Energy Retrofit, Education, Energy Auditing, Energy Modeling, Finance, Geothermal, HERS Rater, HVAC, Incentives, Insulation, Mechanical Systems, Net Zero, Photovoltaics, Public Policy, Research, Solar Thermal

Ace Energy Services, Inc. – Applied Building Science

1780 County St.
Taunton , Massachusetts 02718
Phone: 781-369-5921

At Ace Energy Services we understand building science and how to apply it to help builders and homeowners achieve maximum comfort and energy savings at the lowest cost possible. Whether it's single family, townhouses, or multi-family buildings we utilize our knowledge to provide solutions. Often, we help implement solutions by conducting effective air-sealing or the installation of air-source heat pump systems.

Sectors: Multifamily, Single Family
Service Area: Massachusetts, New Hampshire
Professional Specialties: Energy Auditing, HERS Rater, HVAC, Indoor Air Quality

Action for Boston Community Development, Inc. (ABCD)

178 Tremont St.
4th Fl.
Boston , Massachusetts 02111
Phone: 617-348-6000

ABCD is a non-profit human services organization that provides low-income residents in the Greater Boston region with the tools and resources needed to transition from poverty to stability and from stability to success. Offering a number of heating and energy services to income eligible residents of Boston, Brookline, Newton and the Mystic Valley cities and towns of Malden, Medford, Everett, Melrose, Stoneham, Winchester and Woburn, ABCD can help you stay warm in winter and cool in summer. We’ll even help you go green!

Sectors: Multifamily, Single Family
Service Area: Massachusetts
Professional Specialties: Affordable Housing, Consumer Information, Energy Auditing, Incentives, Social Services

Advanced Building Analysis, LLC

2 Woodlawn St.
Amesbury , Massachusetts 01913
Phone: 978-270-3911

ABA is an industry leader of energy analysis, diagnostic, and verification services in Massachusetts and southern NH. We are an ENERGY STAR partner who helps builders of new single family and multi-family homes meet the challenges of higher energy efficiency standards and cost effectiveness. ABA consults with architects and builders to improve building energy efficiency to meet or exceed program goals established by EPA’s ENERGY STAR, MA Residential New Construction programs, as well as Building Code consultation and verification.

Sectors: Multifamily, Single Family
Service Area: Massachusetts, New Hampshire
Professional Specialties: Certification/Commissioning, Energy Auditing, Energy Modeling, HERS Rater, Passive House

Aegis Energy, EDF Group

55 Jackson St.
Holyoke , Massachusetts 01040
Phone: 413-536-1156

Aegis Energy is an innovative, full service Combined Heat and Power (CHP) company based in Holyoke, MA. Founded in 1985, Aegis Energy modular systems are currently utilized across the Northeast and Mid-Atlantic providing sustainable, clean power options for a wide array of customers. Aegis assists a variety of facilities in reducing both energy costs and emissions, from healthcare and assisted living facilities, to recreational and multi-unit residential complexes, and hotels. There are also institutional, educational, and industrial facility applications.

Sectors: Institutional, Industrial, Multifamily
Service Area: Entire Northeast Region
Professional Specialties: Cogeneration/CHP, Energy Monitoring

Air Barrier Solutions, Inc.

257 Middle Rd.
Crown Point , New York 12928
Phone: 518-597-4503

We provide air barrier and insulation inspection/audit services, including bulk foam installation, across the U.S. and Canada. All of our projects begin with a state-of-the-art diagnostic evaluation. Customized retrofit plans are developed for each building. Air Barrier Solution's crews and project managers use proprietary, quality assurance, and measurement verification methodologies to complete projects.

Sectors: Commercial, Institutional, Industrial, Multifamily, Single Family
Service Area: Entire Northeast Region
Professional Specialties: Building Envelope, Deep Energy Retrofit, Energy Auditing, Energy Monitoring, Insulation

Alfandre Architecture

231 Main St.
New Paltz , New York 12561
Phone: 845-255-4774

Alfandre Architecture specializes in the design of energy, resource-efficient, healthy buildings. Get the space that’s right for you, designed around how you live and work. One team that does it all, from sustainable design to complete construction. Creating spaces and places of lasting beauty.

Sectors: Commercial, Institutional, Multifamily, Single Family
Service Area: New York
Professional Specialties: Architecture, Design/Build

Allied Engineering, Inc.

160 Veranda St.
Portland , Maine 04103
Phone: 207-221-2260

Allied Engineering, Inc. (AEI) has been providing multi-discipline engineering support to our clients since 1958. Our experience lies in our knowledge and understanding of structural, mechanical, electrical and technology systems for new buildings and renovation design projects. Our expertise is demonstrated in our attention to detail, integrated designs, and our excellent reputation.

Sectors: Commercial, Institutional, Industrial
Service Area: Maine, New Hampshire
Professional Specialties: Certification/Commissioning, Consulting, Electrical, Engineering, Lighting, Mechanical Systems


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.