NESEA Business Member Directory

The NESEA Business Member Directory includes all organizations that are NESEA Business and Academic Members. The directory is accessible to the public. Please let people know when you learned about their business through NESEA.

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Stephen Turner, Inc.

317 Hope St.
Providence , Rhode Island 02906
Phone: 401-273-1935

Stephen Turner, Inc. is dedicated to providing comprehensive commissioning services. Commissioning is a quality process which ensures, verifies, and documents that a completed project or existing building meets the owner’s needs and expectations. Our firm provides commissioning services in all forms – new building commissioning, renovation commissioning, retro commissioning, ongoing commissioning of existing buildings, and commissioning of system retrofits.

Sectors: Institutional, Multifamily
Service Area: Massachusetts, Rhode Island
Professional Specialties: Certification/Commissioning, Construction Management, Energy Auditing

  Industry Leader NESEA Member  

Steven Winter Associates, Inc.

307 7th Ave., Ste. 1701
New York , New York 10001
Phone: 203-857-0200 ext.2100

Steven Winter Associates, Inc. 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 & 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, 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

At Steveworks, we expect all our jobs to exemplify craftsmanship, durability, and value. These principles are important to the customers who frequently come back to us or pass us along to new clients, and they are the pillars of sustainable building. Being sustainable requires us to take into account energy performance, the sources and quantity of materials and resources, and how often those materials or other parts of your home will last. We believe quality craftsmanship, durability, value, and sustainability can all be implemented with a practical approach that will fit in any budget.

Sectors: Single Family
Service Area: Massachusetts
Professional Specialties: Building Envelope, 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 of 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 world-wide for its engineering and manufacturing expertise and its 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


25 Jones Rd.
Pelham , Massachusetts 01002
Phone: 413-992-2932

A residential design firm focusing on high performance housing, deep energy retrofits, net zero homes, passive new construction and existing buildings in Western New England.

Sectors: Single Family
Service Area: Massachusetts, New Hampshire, Vermont
Professional Specialties: Building Envelope, Deep Energy Retrofit, Insulation, Net Zero, Passive House, Project Management, Remodeling/Renovation

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

Sullivan County Office of Sustainable Energy

100 North St.
Monticello , New York 12701
Phone: 845-807-0578

The Sullivan County Office of Sustainable Energy (OSE) works to develop cost effective projects, policies and practices that make County operations and our surrounding community more sustainable, resilient, healthy, energy efficient and environmentally responsible. The OSE works to achieve these goals in County operations and throughout the community by providing research, analysis, strategies, informational outreach and project support on a range of issues relating to sustainability, and by working in close coordination with numerous County departments, local and state agencies and community organizations to maximize the resources available to the County and its residents.

Sectors: Commercial, Institutional, Industrial, Multifamily, Single Family
Service Area: New York
Professional Specialties: Public Policy

SumZero Energy Systems, LLC

31 Granite St., Ste. 7
Milford , Massachusetts 01757
Phone: 508-965-0046

We are home energy improvement experts that are focused on reducing the carbon footprint in your home, while also improving the comfort, energy efficiency, and indoor air quality. We strive to make long-lasting improvements to your home to give you the best HVAC experience possible. With an extensive knowledge about science-driven HVAC technologies, we are able to give you tangible data that we then use to create the appropriate HVAC solutions for your home. We offer a large range of services so that we can assist you with any and all of your HVAC needs.

Sectors: Single Family
Service Area: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont
Professional Specialties: Energy Auditing, HVAC, Indoor Air Quality, Insulation

Sun Bandit

340 W. 32nd St.
Yuma , Arizona 85364
Phone: 800-741-0247

Sun Bandit® provides simple, clean, and dependable renewable energy that is easy to enjoy for everyone. It is now possible for more people in more places to enjoy the benefits of an off-grid on-site energy storage solution. Sun Bandit® technologies provide the most economical and user-friendly way to utilize the free energy of the sun. Independent third-party tested and certified for safety, performance, and peace of mind. Our patented technology provides solar energy without the need of utility approval, net metering, or batteries.

Sectors: Single Family
Service Area: Entire Northeast Region
Professional Specialties: Energy Storage, Photovoltaics

  Industry Leader NESEA Member  

SunBug Solar

1165 Mass Ave.
Ste. 201
Arlington , Massachusetts 02476
Phone: 617-500-3938

Founded in 2009, SunBug Solar has designed and installed over 800 solar systems all across Massachusetts, ranging in size from 1kW to over 500kW. We deliver the highest-quality solar solutions in conjunction 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.

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

Sustainable Comfort, Inc.

146 Main St.
Ste. 301
Worcester , Massachusetts 01608
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 hold the conviction 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 multifamily market to conscious development and management that results in sustainable buildings that support the people who build them, 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 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.