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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Demand Management Institute, Inc. (DMI)

300 Chestnut St., Ste. 150
Needham , Massachusetts 02492
Phone: (781) 449-5700

DMI specializes in providing expert consulting and engineering services to improve energy efficiency and operation of commercial, industrial, institutional, and large-scale residential facilities. DMI has established itself as one of the most respected energy engineering firms in New England, with unsurpassed attention to detail and quality.

Sectors: Commercial, Institutional, Industrial, Multifamily
Service Area: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont
Professional Specialties: Certification/Commissioning, Consulting, Energy Auditing, Engineering, Incentives

  Midsize NESEA Business Member  

Dietz & Company Architects, Inc.

55 Frank B. Murray St. Ste. 201
Springfield , Massachusetts 01103
Phone: (413) 733-6798

For over 35 years, Dietz & Company Architects has been serving the architectural needs of private and public institutions, including the housing, education, hospitality, commercial, and historic preservation sectors. We are dedicated to interpreting our clients’ ideas while building healthy, sustainable communities. We routinely design high-performance buildings and implement a “best practice” approach for energy conservation and sustainable materials whenever it can be cost-effective for our clients. Our sustainable design achievements include affordable housing developments designed to be zero net energy and others that meet Enterprise Green Communities certification criteria.

Sectors: Commercial, Institutional, Multifamily
WMBE: Women or BIPOC Owned
Service Area: Connecticut, Massachusetts
Professional Specialties: Affordable Housing, Architecture/Design, Education, Historic Restoration, Remodeling/Renovation

Dominic Paul Mercadante Architecture

68 Waldo Ave.
Belfast , Maine 04915
Phone: (207) 338-4089

With over 20 years of experience, I bring creativity and attention to detail to my practice of residential architecture, creating buildings that perform well environmentally, functionally, and aesthetically.

Sectors: Single Family
Service Area: Maine
Professional Specialties: Architecture/Design, Consulting

Dynamic Grid

148 Middle St. Suite 1D
Portland , Maine 04101
Phone: (207) 699-4051

We are software engineers and scientists with a passion for renewable energy. This passion leads to the creation of leading-edge software applications that include simulation tools for project feasibility, controls technology for storage devices, and AI-enabled optimization for microgrids and edge devices. Our product ecosystem is built on three principles: Transactive Energy, control at the edge, and dynamic intelligence for optimization. Whether you are a small community looking to build a microgrid or a homeowner interested in storage, contact us. We’d love to share our knowledge with you!

Sectors: Multifamily, Single Family
Service Area: Entire Northeast Region
Professional Specialties: Software

E2 Solar, Inc.

831 Main St., Rte. 6A
Dennis , Massachusetts 02638
Phone: (508) 694-7889

In 2008, E2 Solar was established to deliver high-quality photovoltaic systems to residents and businesses on Cape Cod and the South Shore. Since then, E2 has cultivated numerous local partnerships to help the community become more energy-independent. Jason Stoots and the entire staff at E2 Solar are committed to designing and installing exceptionally efficient, low-maintenance, long lasting solar energy systems. E2 offers SunPower PV modules with the highest efficiency and best warranty available. Talk with one of E2 Solar's qualified solar site analysts today.

Sectors: Commercial, Single Family
Service Area: Massachusetts
Professional Specialties: Photovoltaics


205 Newbury St., Ste. 203
Framingham , Massachusetts 01701
Phone: (774) 777-5121

We are bringing clean, efficient energy homes for every American. E4 = energy, economy, equity, environment. E4TheFuture promotes residential clean energy and sustainable resource solutions to advance climate protection and economic fairness by influencing federal, state, and local policies and by helping to build a resilient and vibrant energy efficiency and clean energy sector.

Sectors: Single Family
Service Area: Entire Northeast Region
Professional Specialties: Consumer Information, Education, Public Policy

  Midsize NESEA Business Member  

Earthshare Construction

20 West Park St. Ste. 309
Lebanon , New Hampshire 03766
Phone: (603) 790-3084

Earthshare Construction specializes in high-performance, energy-efficient, environmentally conscious building construction, retrofit, and weatherization. We offer design, build, energy auditing, and consulting services for new builds, renovation, retrofit, and weatherization projects. We are committed to using best practices in sustainable design and construction, incorporating natural, local, and nontoxic materials. We seek to constantly gain knowledge and expertise in contemporary environmentally responsible building methods and to create buildings that merge energy efficiency with durability, beauty, and functionality.

Sectors: Single Family
Service Area: New Hampshire, Vermont
Professional Specialties: Deep Energy Retrofit, Design/Build, Net Zero, Passive House, Remodeling/Renovation

East Branch Studio

634 Main Rd.
West Chesterfield , Massachusetts 01084
Phone: (413) 296-0123

Our clients often want both high quality and low environmental impact as they build, renovate, or restore their homes. They want to reduce energy costs, achieve greater energy independence, and protect their health from toxic chemicals. Whether you want to make your own energy, have a home energy consultation, live in a 'healthy' home, or protect the environment, we have the experience to help you choose the best design and materials for your high-performance home. We have up-to-date knowledge of products, construction materials, and building processes at all levels. Our team includes experienced trade contractors who can provide a full range of systems for efficient heating, cooling and ventilation, and for generating your own energy.

Sectors: Single Family
Service Area: Massachusetts
Professional Specialties: Carpentry/Cabinetry, Consulting, Deep Energy Retrofit, Design/Build, General Contractor, Healthy Materials, Historic Restoration, Indoor Air Quality, Net Zero, Passive House, Project Management, Remodeling/Renovation

Eco Air

273 Weymouth St.
Rockland , Massachusetts 02370
Phone: (781) 347-4735

Eco Air is a distributor of energy-efficient HVAC products in the Greater Boston market. We are dedicated to bringing new innovative solutions for heating, ventilation, and air conditioning as we are passionate about helping our customers achieve the highest standards of energy efficiency possible through high-quality, high-performing products. Through our relationship with Thermaduct, ECO Air provides pre-insulated ductwork solutions for indoors that are lightweight and low leakage or outdoors designed for the elements. ECO Air offers the patented Aeroseal process to seal medium-pressure ductwork to levels that exceed SMACNA Seal Class A requirements.

Sectors: Commercial, Institutional, Industrial, Multifamily, Single Family
WMBE: Women or BIPOC Owned
Service Area: Massachusetts
Professional Specialties: HVAC, Indoor Air Quality

eco_logic STUDIO, architecture & engineering, PLLC

2495 Main St., Ste. 431
Buffalo , New York 14214
Phone: (716) 834-9588

eco_logic STUDIO is an architecture, engineering, and planning firm focusing on green design and community revitalization. Specializing in high-performance new and retrofit design of custom homes, affordable housing, institutional facilities, commercial development, urban design and planning, and green infrastructure. Certified passive house designer, architects, and engineer on staff. Experience in natural building, solar systems, and living roofs. Architectural registration in NY, NJ, MI, NC, SC, and CT.

Sectors: Commercial, Institutional, Industrial, Multifamily, Single Family
Service Area: Connecticut, New Jersey, New York
Professional Specialties: Affordable Housing, Architecture/Design, Community Planning, Construction Management, Engineering


121 Surprise Hill
Freehold , New York 12431
Phone: (518) 291-6950

EcoCocon was founded with the idea to find a way to create real and affordable cradle to cradle buildings. Buildings that are made of renewable materials, and would last decades before being returned safely to nature after use. Buildings that would contain healthy, locally sourced materials and leave a minimal ecological footprint. Over the years, we have developed a unique modular straw-based construction system. On average, our panels consist of 89% straw and 10% wood. We have designed our panels to use as little wood as possible - just enough for the system to be structural. The wood we use is sourced from sustainably managed forests and the straw is a by-product of wheat production.

Sectors: Single Family
Service Area: Connecticut, Delaware, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Vermont
Professional Specialties: Insulation, Passive House, Prefab/Modular

Elevated Design Inc.

1212 Hancock St.
Quincy , Massachusetts 02169
Phone: (724) 561-6329

Elevated Design delivers MEP/FP design services for all building types. EDI has experience in multifamily, office, retail, restaurants, hotels, data centers, laboratories, research, higher education, prisons, and central plants. EDI has a particular focus on Microgrids and Combined Heat and Power (CHP) plants.

Sectors: Commercial, Institutional
Service Area: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont
Professional Specialties: Cogeneration/CHP, HVAC, Mechanical Systems


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 at one of our organization membership levels. Learn more.