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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  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 not only has a measurable impact on people’s lives, but also 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, Fl1
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 bring together 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: Single Family
WMBE: Women or BIPOC Owned
Service Area: Connecticut
Professional Specialties: Architecture/Design

TE2 Engineering

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

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.

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 1980's. 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

  Midsize NESEA Business Member  

The Green Engineer, Inc.

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

The Green Engineer is a design consulting firm specializing in energy efficient and sustainable design solutions for the built environment. Founded in 2005 by Chris Schaffner, PE, LEED Fellow, the firm has a technical staff of twenty LEED-Accredited Professionals. The expert team brings to the table experience and perspective from a variety of backgrounds, including engineering, architecture, construction, planning, development, and public policy. To date, we have managed or been involved in more than 200 LEED-certified projects in New England and around the country, including 14 LEED Platinum projects.

Sectors: Commercial, Institutional, Industrial, Multifamily
Service Area: Massachusetts
Professional Specialties: Certification/Commissioning, Construction Management, Consulting, Energy Modeling, Engineering, Project Management

The Turett Collaborative

277 Broadway, Studio 1300
New York , New York 10007
Phone: (917) 612-9086

Wayne Turett, founder and principal of The Turett Collaborative, is a licensed, LEED credentialed architect. Combining historic preservation and high-efficiency design has always been a passion for Wayne. With New York City enacting stricter standards for energy-efficient buildings, aiming to reduce building-based emissions by 30 percent by 2025 from a 2005 baseline, The Turett Collaborative is uniquely equipped to produce energy-efficient building designs that can adhere to Landmark and Preservation guidelines while also serving the needs of the client.

Sectors: Commercial, Institutional, Industrial, Multifamily, Single Family
Service Area: New York
Professional Specialties: Architecture/Design, Deep Energy Retrofit, Historic Restoration, 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


525 Massachusetts Ave., Ste. 204
Acton , Massachusetts 01720
Phone: (978) 263-6019

Thoughtforms Corporation specializes in building high-end custom homes and unique institutional buildings in eastern Massachusetts. Clients trust Thoughtforms to deliver custom quality in a transparent and informative way and to be a long term partner. The quality clients expect extends far beyond the level of finish and what can be seen in the here and now and includes the health and comfort of the indoor environment, energy use, durability, and technology, among other elements.

Sectors: Institutional, Single Family
Service Area: Massachusetts, New Hampshire
Professional Specialties: Carpentry/Cabinetry, Construction Management, Consulting, Passive House, Remodeling/Renovation

Threshold Building Co.

PO Box 103
Shelburne Falls , Massachusetts 01370
Phone: (413) 522-7949

With dedication to craft, people, and place, Threshold Building Co. offers the highest quality finish work, timber frames, and high-performance buildings to the community of Western Massachusetts and beyond. We lead a committed client, a forward-thinking design team, talented builders, and excellent subcontractors to complete projects with integrity and beauty. These projects combine form and function for how people live today, providing durability for the future. Threshold’s mission is to provide Western Massachusetts with comprehensive building services focusing on quality craftsmanship, sustainable building practices, and clear customer communication.

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


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.