NESEA Business Member Directory

CED Greentech East serves East of the Mississippi in the ever-expanding solar industry. We work closely with installers and have excellent service and extensive experience in the electrical and photovoltaic fields. Our goal is to meet your project requirements at a competitive price and to manage and deliver your system promptly and professionally. Our stock of materials and accessories will help complete your jobs without any holdups! Greentech personally handles daily deliveries throughout the region, ensuring that your complete system arrives on time and at no additional cost to you! We get low freight rates through our corporate account, and your order will be shipped out the same day!

Gregorio Sustainability LLC is a WBE that partners with private, public, non-profit, and government organizations to advance their ESG goals, with expertise in the commercial real estate sector. Whether a client is starting their first project or deepening the impact of an existing program, Gregorio Sustainability will develop and implement custom corporate responsibility strategies and sustainability solutions that add value to the organization's bottom line. With experience in strategic planning and program development, project management, compliance and reporting, certifications, marketing and communications, stakeholder engagement, and industry partnerships - our services will enhance sustainability efforts to meet key business goals.

We are a company of craftspeople. For 33 years, we have designed and built beautiful, custom timber frame structures for clients in Massachusetts, New England, and the United States. A family company in its second generation of leadership, we have been employing a group of timber framers year-round for more than three decades and are committed to our people. We are very eager to work with architects and builders who are on the front line of cutting-edge energy sustainability and want to pair their products with the beauty and tradition of a timber frame.

Building passive and high-performance homes in Seacoast New Hampshire and Southern Maine Our mission is to build high-quality, energy-efficient, and environmentally conscious houses and—most importantly—to build strong relationships with our clients as we construct their dream homes. We work with homeowners from the design phase through the final walk-through, handling all the construction management for a seamless construction process.

Haycon is an award-winning Design/Build firm dedicated to innovating and diversifying Boston's built environment through our high-performance and Passive House building. The company was founded by Patrick Haydon and David Bemiss, two architects with a passion for, and interest in, the building delivery process. Our broad scope of services include pre-construction, construction management, design-assist, construction, and general contracting. Haycon's approach to guiding the design and entitlement process is such that critical information for permitting, scheduling, and cost is prioritized. We make sure to eliminate unnecessary soft costs and planning efforts in order to produce high-quality finished products in a timely manner.

HELM offers innovative business consulting, coaching, project management, and training services. Our experienced team members work with owners, designers, and builders to create high-performance buildings and businesses throughout North America. HELM's purpose is to revolutionize the construction industry, centering the triple bottom-line principles of planet, people, and prosperity to become a catalyst for climate justice.

HGA is a national interdisciplinary design firm committed to making a positive, lasting impact for our clients and communities through research-based, holistic solutions. As the impacts of climate change intensify, this mindset has become even more crucial—there is no time to waste. Every act of sustainable design, engineering, planning, and construction shapes our common future, and at HGA, we see this as both a responsibility and an opportunity. Through vision and strategy, we have advanced our sustainability commitments, built a portfolio of innovative, elegant solutions, and aligned our internal processes to position both our company and clients for maximum impact.

We bring global energy-efficient technologies—including heat pumps, heat-pump water heaters, and geothermal systems—to commercial and high-rise multifamily buildings in our target markets. Further, we seek to electrify and decarbonize both retrofits and new construction. We specialize in the most demanding buildings in the following verticals: commercial, high-rise multifamily, office, industrial, education, hospitality, healthcare, and government. The markets we work in include the New York City metropolitan area (all five boroughs), Long Island, Northern New Jersey, and Westchester County. Contact us for more information.

HMFH is an architecture firm committed to creating spaces that elevate users’ experience. While each of our projects is different in its response to context and program, our approach, which is predicated on a belief that the best architecture builds community, unites us. We design spaces that connect people­—whether across a campus, in a civic building, public or private institution, or living or working space.

HoldFast Communications specializes in creating innovative sales and marketing campaigns for construction, infrastructure, chemical, and sustainability marketing programs, as well as building product manufacturers. Our portfolio features award-winning examples of Sustainable Communications, Green Building Marketing, Building Materials Marketing - our work showcases our commitment to quality and excellence.
​Established in 2000 by Mary MacLeod, our comprehensive range of services encompasses personalized consulting, support for product launches, rebranding initiatives, and sales representation. We proudly represent companies, nonprofits, and individuals who actively strive to make a positive impact on the world, one step at a time.

At Horizon, we are committed to helping Maine families enjoy healthy, comfortable, and efficient homes. From air sealing and insulation to heat pumps with robust Efficiency Maine rebates, we have the experience and expertise to fix problem areas and make your dream a reality on your budget. At Horizon we have the experience to help you make your home as efficient, functional, and comfortable as possible. Reach out, and one of our team leaders can assess your home and make a plan to bring your dreams to reality.

HTS New England runs the gamut of providing custom HVAC solutions for projects of all sizes in the commercial, institutional, and industrial sectors. We continue to succeed over the competition – whether our clients need energy-recovery systems or high-efficiency chillers – because our equipment is invariably dependable and consistently low on maintenance. Our engineering and technical specialists become heavily involved in every project's research and design phase to provide counsel, product education, specifications, a 24-hour turnaround on shop drawings, Revit® images, and any other support architectural and MEP teams need to accomplish their client goals.