NESEA Business Member Directory

The NESEA Business Member Directory includes all organizations that are NESEA Business and Academic Members. The directory is open to the public.

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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. As a tech-savvy group we use web-based project management tools that 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.

Professional Specialties: Building Design & Construction

475 High Performance Building Supply

334 Douglass St.
Brooklyn , New York 11217
Phone: 9178378487

475 High Performance Building Supply (475) 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 ecommerce-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.

Professional Specialties: Envelope & Enclosure, Insulation, Manufacturing, Passive Housing, 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.

Professional Specialties: Alternative Energy, Photovoltaics, Single Family

  Industry Leader NESEA Member  

A.W. Hastings/Marvin

2 Pearson Way
Enfield , Connecticut 06082
Phone: 800-966-2784

As a leading distributor for Marvin Windows & Doors, A.W. Hastings & Co partners with its retailer network to bring their customers' vision to life throughout the northeast. Made in the USA and sold and serviced locally, Marvin products are manufactured with sustainability in mind, starting with design and continuing through the entire life cycle of every project, always with an emphasis on long-term durability, efficiency and quality. Whether your project is passive house, Net Zero, or a home that simply uses elements of sustainable design, the Marvin Family of Brands provides solutions you need - including dual pane and tri-pane options yielding total window U-Factor values as low as .15.

Professional Specialties: Single Family, Windows

A&B Cooling

660 Nutmeg Rd. N
PO Box 1356
South Windsor , Connecticut 06074
Phone: 860-528-4436

Geothermal specialists since 1995, LEED Gold and Silver designer and installer, custom fabricated duct systems, radiant floor systems, heat and energy recovery ventilation systems.

Professional Specialties: Geothermal, HVAC, Indoor Air Quality, Mechanical Systems & Lighting

A9 Green / Total Green Energy Solution, LLC

329 Massachusetts Ave.
Lexington , Massachusetts 02420
Phone: 781-357-2454

Since 2009, A9 Green has delivered HERS Ratings and energy efficiency consulting to developers, architects, and builders of single and multi-family residential projects in over 85 towns across eastern Massachusetts. Our expertise in energy modeling, architecture, and building science help build better homes while reducing costs and environmental impact.

Professional Specialties: Building Design & Construction, Construction Process, Consultancy, Design Process, Energy Auditing, Energy Conservation, Engineering, Envelope & Enclosure, Indoor Air Quality, Insulation, Multifamily, Research, Single Family

Abode Energy Management

395 Mass Ave.
Arlington , Massachusetts 02474
Phone: 339-707-0918

Our leadership team brings years of direct hands-on management experience in the Home Performance Contractor path. We bring diverse experience designing, implementing, and participating in energy efficiency programs throughout the Northeast.

Professional Specialties: Consultancy, Energy Auditing, Energy Conservation, Home Inspection, Single Family

Action for Boston Community Development, Inc. (ABCD)

178 Tremont St.
4th Fl.
Boston , Massachusetts 02111

Adirondack Battery & Solar, LLC

Phone: 315-212-2114

Advanced Building Analysis, LLC

2 Woodlawn St.
Amesbury , Massachusetts 01913
Phone: 9782703911

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 cost effectively meet the challenges of higher energy efficiency standards. 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.

Professional Specialties: Certifications & Standards, Energy Auditing, Multifamily, Single Family

Aegis Energy Services

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

Aegis Energy Services is an innovative, full service Combined Heat and Power (CHP) company based in Holyoke, MA. Founded in 1985, Aegis Energy Services' 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.

Professional Specialties: Alternative Energy, Energy Conservation, Manufacturing

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. The scope of the work is implemented by Air Barrier Solution's own crews and project managers, using proprietary, quality assurance, and measurement verification methodologies.

Professional Specialties: Consultancy, Energy Auditing, Insulation


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.