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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Synapse Energy Economics

Cambridge , Massachusetts 02139
Phone: (617) 661-3248

For over 25 years, we've equipped our clients with the tools and information to help shape the evolving energy sector to meet objectives for reliability, affordability, and equity. Our reports, expert witness testimony, modeling, presentations, factsheets, and white papers are all grounded in up-to-date knowledge and best practices in energy and environmental economics. Whether you need assistance scoping analysis, protecting ratepayer interests in a regulated utility proceeding, or creating a report to enhance public engagement in the energy transition, we can help. Together, we'll ensure the work scope aligns with your goals and the deliverables clearly communicate robust and data-driven analysis to maximize your impact.

Sectors: Commercial, Institutional, Industrial, Multifamily
Service Area: Connecticut, Delaware, Maine, Massachusetts, New Hampshire, New York, Pennsylvania, Rhode Island, Vermont
Professional Specialties: Consulting, Energy Modeling, Environmental Services

  Midsize NESEA Business Member  

Taggart Construction, Inc.

10 South St.
Freeport , Maine 04032
Phone: (207) 865-2281

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.

Sectors: Multifamily, Single Family
Service Area: Maine
Professional Specialties: Carpentry/Cabinetry, Construction Management, Deep Energy Retrofit, Design/Build, General Contractor, Healthy Materials, Historic Restoration, Net Zero, Passive House, Project Management, Property Management, Remodeling/Renovation

  Industry Leader NESEA Member  

Taitem Engineering

110 S Albany St.
Ithaca , New York 14850
Phone: (607) 277-1118

Taitem Engineering is a full-service consulting engineering firm at the forefront of innovative, sustainable design and building science. During 35 years of continuous operation, Taitem has continued to expand its offerings in energy efficiency and net-zero energy, leading the market while maintaining its commitment to its mission, as reflected in its name, “Technology As If The Earth Mattered.” The team carefully works with emerging technologies to determine their real-world value. As a B-Corp, our work has a measurable impact on people’s lives and contributes to improvements to industry best practices to help achieve carbon reduction goals.

Sectors: Commercial, Institutional, Industrial, Multifamily
Service Area: Maine, Massachusetts, New York, Pennsylvania, Vermont
Professional Specialties: Certification/Commissioning, Deep Energy Retrofit, Energy Modeling, Geothermal, HVAC, Net Zero, Passive House

TAMA Architecture PC

26 Lyme St
Old Lyme , Connecticut 06371
Phone: (860) 222-2658

( taa · mah ) In the Filipino language, the phrase “tamang tama” roughly translates to “just right.” Our commitment to finding the just right fit captures the golden thread of our practice— driving our dynamic process and influencing every decision we make. With our core value of partnership, we combine our client’s style, the specifics of a site, the budget, and the craft of today’s building technology into an architecture to be enjoyed for generations.

Sectors: Multifamily, Single Family
WMBE: Women or BIPOC Owned
Service Area: Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont
Professional Specialties: Advocacy, Architecture/Design, Deep Energy Retrofit, Interior Design, Net Zero, Passive House

TE2 Engineering

200 Reservoir St. Suite 204
Needham , Massachusetts 02494
Phone: (781) 334-8323

TE2 was founded in 2010 to address the growing need for high-performance HVAC systems that are Comfortable, Quiet, and promote healthy Indoor Air Quality (IAQ). Over the years, we have expanded our services to include comprehensive engineering solutions such as building and energy analysis, as well as mechanical, electrical, plumbing, and fire protection (MEP/FP) design, along with renewable energy design. We specialize in high-end residential homes and combine luxury, comfort, and efficiency to create tailored solutions for homeowners. Our expertise extends across diverse markets, including multi-family, office/retail, hotel, and data centers, with a strong focus on energy efficiency and sustainability in LEED and Passive House projects.

Sectors: Commercial, Multifamily, Single Family
Service Area: Connecticut, Massachusetts, New Hampshire, Rhode Island
Professional Specialties: Consulting, Engineering, General Contractor, HVAC, Mechanical Systems, Net Zero, Water Heating

Terra Design-Build

20 East St.
Dalton , Massachusetts 01226
Phone: (413) 464-2913

Terra Design-Build provides residential and light commercial design services for renovations, additions, adaptive reuse, new homes, building evaluations, and energy consultations. Our guiding principles are to use sustainable design principles, seek out earth-friendly material choices, and reduce fossil fuel use and carbon emissions. Owner/Architect Wendy Brown, AIA, has been involved in Berkshire County building since she started as a drafter for BETNR Construction at age 15 back in the 1980s. She's licensed in Massachusetts and Vermont. We prefer to have the Owner, Architect, and Contractor work as a team for collaborative results.

Sectors: Single Family
WMBE: Women or BIPOC Owned, BuildingEnergy Access Program Participant
Service Area: Massachusetts, Vermont
Professional Specialties: Architecture/Design, Design/Build, Net Zero, Remodeling/Renovation

The Energy Federation, Inc.

1 Willow St.
Southborough , Massachusetts 01745
Phone: (508) 870-2277

For over 30 years, EFI has assisted people in their efforts to use less energy and water by providing energy-efficient products and delivering successful utility program services. Our mission is to encourage people to use our planet’s limited energy and water resources wisely. We assist people in these efforts by offering high-quality conservation products and services at affordable prices while communicating practical, objective information. EFI is a leading promoter of residential energy efficiency-related products, distributing products directly through our consumer and wholesale divisions and administrating utility-sponsored rebate programs through our incentive processing division.

Sectors: Commercial, Single Family
Service Area: Entire Northeast Region
Professional Specialties: Building Supply, Consumer Information, Incentives

  Midsize NESEA Business Member  

The Green Engineer, Inc.

23 Bradford St.
Concord , Massachusetts 01742
Phone: (978) 369-8978

The Green Engineer, Inc. is a sustainable design consulting firm specializing in energy-efficient and sustainable design solutions for the built environment. Founded in 2005 by Christopher Schaffner, PE, LEED Fellow, the firm currently has a staff of 26, with 24 LEED-accredited professionals. Our team members consist of sustainability consultants and building performance analysts. Our expert team brings to the table experience and perspective from a variety of backgrounds, including engineering, architecture, construction, planning, development, and public policy. An Employee-Owned, Massachusetts Benefit Corporation and B Corporation.

Sectors: Commercial, Institutional, Industrial, Multifamily
Service Area: Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont
Professional Specialties: Certification/Commissioning, Construction Management, Consulting, Energy Modeling, Engineering, Net Zero, Passive House, Project Management

The Turett Collaborative

277 Broadway, Studio 1300
New York , New York 10007
Phone: (212) 965-1244 ext. 413

Established in 1991 by Founder and Principal Wayne Turett, The Turett Collaborative is a diverse, environmentally-conscious, modern architecture and interior firm based in Tribeca. The firm’s portfolio of work over three decades reflects its longstanding commitment to green building and design, advocating for innovative and sustainable solutions across both commercial and residential projects. In addition to the NESEA, the firm is a USGBC member organization. A licensed, LEED-credentialed architect, Turett is also an active member of ADPSR, which works for peace, environmental protection, ecological building, and social justice.

Sectors: Commercial, Institutional, Multifamily, Single Family
Service Area: Connecticut, New Jersey, New York
Professional Specialties: Architecture/Design, Community Planning, Consulting, Deep Energy Retrofit, Historic Restoration, Interior Design, Passive House

The Valle Group

70 E Falmouth Hwy. Ste. 3
East Falmouth , Massachusetts 02536
Phone: (508) 548-1450

The Valle Group sets the standard for thoughtfully planned communities in southern New England. The company's special expertise is planning and creating communities of quality, energy-efficient homes and building and remodeling for homeowners.

Sectors: Commercial, Single Family
Service Area: Massachusetts
Professional Specialties: Construction Management, Deep Energy Retrofit, Design/Build, Passive House, Remodeling/Renovation

Thomas Douglas Architects, Inc.

196 Pleasant St
Northampton , Massachusetts 01060
Phone: (413) 585-0641

Our core belief is that architecture has the power to transform our lives. Our homes, offices, neighborhoods, and cities help shape who we are.

Every building project involves change. We strive to create positive change for our clients' businesses, brands, and homes—and for our society and generations to come.

Sectors: Commercial, Institutional, Industrial, Multifamily, Single Family
Service Area: Massachusetts
Professional Specialties: Architecture/Design, Historic Restoration, Interior Design, Remodeling/Renovation

  Industry Leader NESEA Member  

Thornton Tomasetti

14 York St., Ste. 201
Portland , Maine 04101
Phone: (207) 245-6060

Thornton Tomasetti collaborates on the design of sustainable buildings to provide innovative solutions that greatly reduce operational and embodied carbon and contribute to more resilient buildings and communities. Using whole building environmental and advanced energy analysis, we’ll help you make sure your buildings are performing at the highest level for optimal operational performance and occupant comfort. Our multidisciplinary staff consults on green building certifications, including Passive House Certification, Net Zero Energy Buildings, Living Building Challenge design, Embodied Carbon Optimization, and BECx Commissioning.

Sectors: Commercial, Institutional, Industrial, Multifamily
Service Area: Entire Northeast Region
Professional Specialties: Certification/Commissioning, Consulting, Energy Auditing, Energy Modeling, Engineering, Net Zero, Passive House

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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.