NESEA Business Member Directory

The NESEA Business Member Directory includes all organizations that are NESEA Business, Academic, and Non-Profit/Government Members.  Please let people know that you learned about their services from the directory.

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Stephens and Company, Inc.

61 Old South Road, PMB 119
Nantucket , Massachusetts 02554
Phone: (508) 325-5736

At Stephens and Company, we are committed to a culture of sustainable construction principles, integrating energy efficiency and industry-tested best practices across all disciplines of residential construction. Whether you are building a new home or renovating an existing building, we can help you make it a “fiscally environmental” home that performs at its maximum potential. We can help you understand and navigate state and town regulations, and we can help you take full advantage of all incentive programs available to you.

Sectors: Commercial, Single Family
Service Area: Massachusetts
Professional Specialties: Carpentry/Cabinetry, General Contractor, HERS Rater, Remodeling/Renovation

  Industry Leader NESEA Member  

Steven Winter Associates, Inc.

307 7th Ave., Ste. 1701
New York , New York 10001
Phone: (212) 564-5800

Steven Winter Associates provides research, consulting, and advisory services to improve commercial, residential, and multifamily built environments for private and public sector clients. We specialize in energy, sustainability, and accessibility consulting, as well as certification, research and development, and compliance services. Our engineers and architects have led the way since 1972 in the development of best practices to achieve high-performance buildings. As a matter of course, we collaborate with our clients to produce the most cost-effective and innovative solutions.

Sectors: Commercial, Institutional, Multifamily, Single Family
Service Area: Entire Northeast Region
Professional Specialties: Architecture/Design, Certification/Commissioning, Community Planning, Consulting, Design/Build, Education, Energy Auditing, Engineering, HERS Rater, HVAC, Indoor Air Quality, Insulation, Net Zero, Passive House, Photovoltaics, Research

Steveworks, LLC

108 Cabot St.
Newton , Massachusetts 02458
Phone: (617) 201-0121

Steveworks is a family-owned residential remodeling contractor working in Newton, MA, and the surrounding area. Our company was founded in 2000 and is committed to quality, diversity, and sustainability. We consider energy performance, the carbon footprint of materials and resources, universal design principles, durability, functionality, and beauty in designing and executing projects our clients can enjoy for many years to come. We are proud to receive high marks both for the quality of our work and for the personality and integrity of our crew.

Sectors: Single Family
Service Area: Massachusetts
Professional Specialties: Building Envelope, Carpentry/Cabinetry, Deep Energy Retrofit, Design/Build, General Contractor, Remodeling/Renovation

Stiebel Eltron, Inc.

17 West St.
West Hatfield , Massachusetts 01088
Phone: (413) 247-3380

Stiebel Eltron is the world leader in advanced water heating technology. Founded in Germany in 1924 by Dr. Theodor Stiebel, the company is still family owned. The product line has grown to include whole house and point-of-use tankless electric water heaters, including the Tempra® Plus with German-patented Advanced Flow Control™, commercial/industrial three-phase water heaters, mini-tank and wall-mounted water heaters, air-to-water heat pump water heaters, plus small, quiet electric space heaters and contemporary, high efficiency touchless hand dryers. Stiebel Eltron is known worldwide for its engineering and manufacturing expertise and drive to develop innovative products with greater energy efficiency, convenience, and reliability.

Sectors: Commercial, Institutional, Industrial, Multifamily, Single Family
Service Area: Entire Northeast Region
Professional Specialties: Solar Thermal, Water Heating

  Midsize NESEA Business Member  

Studio G Architects

179 Boylston St.
Jamaica Plain , Massachusetts 02130
Phone: (617) 524-5558

We are Studio G Architects: a group of designers building sustainable communities, one project at a time, with a vibrant, multi-disciplinary capacity and broad client base. Our design services range from planning and pre-design to construction administration. We tackle each project with a fresh and creative approach tailored to each client’s agenda. The firm is certified as a woman-owned business by the Commonwealth of Massachusetts and the City of Boston.

Sectors: Commercial, Institutional, Industrial, Multifamily
WMBE: Women or BIPOC Owned
Service Area: Massachusetts
Professional Specialties: Architecture/Design

studio2sustain inc

412 County St.
New Bedford , Massachusetts 02740
Phone: (508) 999-5145

studio2sustain is an architecture and design practice committed to sustainability. We develop projects that foster creativity, sustainability leadership, and ecological balance. Our architecture projects are energy efficient, restorative, healthy, and fun. s2s strives for simplicity and an ethos of respecting clients, communities, and the environments we are entrusted and honored to work within.

Sectors: Single Family
WMBE: Women or BIPOC Owned
Service Area: Maine
Professional Specialties: Architecture/Design, Consulting

Sublime Windows, LLC

574 Bernardston Rd.
Greenfield , Massachusetts 01301
Phone: (413) 829-7923

Sublime Windows is making the most energy efficient European-style windows available to the Northeastern US. Our products have been carefully designed to optimize real-life performance for our specific climate.
Windows are a significant component of the larger building system, and our experience goes beyond the window products that we sell. We have a solid understanding of building science, energy modeling, architectural detailing, and construction techniques related to energy efficient buildings.

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

  Midsize NESEA Business Member  

SunBug Solar

2A Draper St.
Woburn , Massachusetts 01801
Phone: (617) 500-3938

Founded in 2009, SunBug Solar has designed and installed over 800 solar systems across Massachusetts, ranging in size from 1kW to over 500kW. We deliver the highest-quality solar solutions with the best possible customer experience. Our integrated approach—from initial education through consultative design to quality installation and ongoing support—has earned SunBug the highest reputation for customer service and a host of satisfied residential and commercial customers. Our service area covers both Eastern and Western Massachusetts.

Sectors: Commercial, Institutional, Multifamily, Single Family
Service Area: Massachusetts
Professional Specialties: Photovoltaics, Solar Thermal

  Industry Leader NESEA Member  


442 US-2
Waterbury , Vermont 05676
Phone: (802) 882-8181

Serving over 7000 homes, schools, and businesses in NY and Vermont, we’re building a resilient power system while using our business as a force for good. We break down barriers to clean energy every day by making it affordable for everyone to go solar at no upfront cost. And it’s easy – our experienced team goes to work for you using the highest quality equipment in the world.

Sectors: Commercial, Institutional, Multifamily, Single Family
Service Area: New York, Vermont
Professional Specialties: Photovoltaics

Sunergy Solutions, LLC

75 Gilcreast Rd.
Londonderry , New Hampshire 03053
Phone: (603) 387-9996

Sunergy Solutions is a solar installation company dedicated to helping homeowners and businesses in NH, MA, ME, and RI harness the power of the sun. We specialize in designing and installing custom solar systems that provide clean, renewable energy while reducing utility costs and carbon footprints. Our team of highly skilled professionals is committed to delivering exceptional customer service and quality workmanship. We understand that every project is unique, and we take the time to listen to your needs and goals to design a solar system that meets your specific requirements. From the initial consultation to the final installation, we work closely with our clients to ensure they are satisfied with the results.

Sectors: Commercial, Multifamily, Single Family
Service Area: Maine, Massachusetts, New Hampshire, Rhode Island
Professional Specialties: Photovoltaics

Superior Co-Op HVAC

2531 State Route 22
Cambridge , New York 12816
Phone: (518) 719-5614

Superior Co-Op HVAC is a veteran-owned Mitsubishi Diamond Contractor Elite located in NY, just a few miles from Vermont. Our mission is to provide heat pump solutions in Vermont, the entire Capital Region of New York including the Adirondacks, to eliminate the use of fossil fuels. Mitsubishi Hyper Heat Pumps can easily heat and cool their home or business, even when temperatures outside dip to -13F, without the help of any backup heating. Our commitment is to help our customers save on their energy bills and reduce energy consumption with practical HVAC solutions, quality products, and efficient service.

Sectors: Commercial, Multifamily, Single Family
Service Area: New York, Vermont
Professional Specialties: Geothermal, HVAC, Incentives, Indoor Air Quality, Mechanical Systems, Net Zero, Water Heating

Sustainable Comfort, Inc.

55 Linden St.
Worcester , Massachusetts 01609
Phone: (508) 713-6680

Sustainable Comfort is a consulting, development, and property management firm with expertise in energy-efficient multifamily housing. SCI specializes in ENERGY Star homes, LEED for homes, Enterprise Green Communities, Passive House, HERS Rating, state incentive programs, and code compliance. We are a small group who believe that through better construction practice and management, we can help developers, architects, contractors, and residents achieve healthier, resilient, and sustainable multi-family buildings. Our vision is to move the multi-family market to conscious development and management that results in sustainable buildings that support the people who build them and call them home, and the communities that surround them.

Sectors: Multifamily
Service Area: Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont
Professional Specialties: Affordable Housing, Building Envelope, Carpentry/Cabinetry, Certification/Commissioning, Community Planning, Construction Management, Consulting, Deep Energy Retrofit, Development, Energy Modeling, General Contractor, HERS Rater, Incentives, Living Building Challenge, Net Zero, Passive House, Property Management, Real Estate, Remodeling/Renovation


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 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 3500). If you would like to be included in the directory, join NESEA today as at one of our organization membership levels. Learn more.