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.

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.

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.

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.

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.

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.

Sustainable Energy Analytics is a service company centered on energy efficiency and resiliency in the residential new construction sector. Our current product set includes HERS Ratings, LEED Certifications, Phius Certifications and testing, energy code compliance/verification, Mass Save incentive program support, various energy, air, and resiliency certifications, building science consulting, HVAC equipment & building envelope testing, and premium energy audits. We offer our services primarily in eastern Massachusetts, with occasional projects in the New England region.

SWTCH provides end-to-end EV charging and energy management solutions. Our smart EV charging platform streamlines the charging experience for drivers while optimizing usage and revenue for building owners. Significantly, all our technology is based on open communication standards to ensure scalable, future-proof charging infrastructure. Ultimately, our mission at SWTCH is to improve EV charging accessibility in urban multi-tenant settings and ensure the effective integration of EVs in our clean transportation future.

Symmetry Electric is a Boston-based electrical shop focused on bringing a new level of communication and quality to a wide range of residential and select commercial projects in and around the city. With over 20 years of electrical experience, Master Electrician Matt Doremus started Symmetry to provide Boston area architects, builders, contractors, and homeowners with an electrical contractor committed to partnership and excellence.

Southern Maine’s pioneer in cutting-edge, energy-efficient, green home construction and environmentally-friendly renovations. We specialize in building high-performance homes that thrive in all of Maine’s most rugged seasons.

Taitem Engineering undertakes consulting services in the areas of mechanical, electrical, plumbing, and structural engineering, commissioning, LEED, energy modeling, sustainability consulting, energy studies, and energy research. The company earned the national R&D 100 award for its work in developing TREAT energy modeling software. In 2006, Taitem Engineering led the technical effort to develop the EnergyStar rating system for new high-performance multifamily buildings, in conjunction with the U.S. Environmental Protection Agency and the New York State Energy Research and Development Authority. Taitem also provides technical training in energy code compliance, energy project construction management, and conducting energy audits.

TE2 grew out of an unfilled need to design “high-performance” HVAC systems that were Comfortable, Quiet, and promoted healthy Indoor Air Quality (IAQ). Established in 2010, the company has grown to provide a list of engineering services such as building/energy analysis, mechanical, electrical, plumbing, and fire protection (MEP/FP) design, and renewable energy design. The company also serves various markets such as residential, multi-family, office/retail, hotel, and data center projects, including LEED and Passive House projects. Comfort and Efficiency- One building at a time.