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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CT Custom Interiors

18 Sherman St.
Sandyhook , Connecticut 06482
Phone: (203) 505-1032

Passive House CT Custom Interiors is a PHIUS-certified passive house builder and offers residential and commercial new construction and deep thermal envelope retrofit remodeling services for existing, traditionally constructed buildings. We have a team of advanced carpenters, finishers, insulators, roofers, siders, electricians, plumbers, and all electricity-based mechanical contractors for almost any sized project. We believe our builds should meet or exceed all known wall assembly and code changes coming so our clients stay current throughout the climate change electrical revolution using construction practices that, if done well, reduce the need and costs for a total second gut renovation.

Service Area: Connecticut
Professional Specialties: Remodeling/Renovation

  Industry Leader NESEA Member  

Curtis + Ginsberg Architects

One Battery Park Plaza Suite 2700
New York , New York 10004
Phone: (212) 929-4417

Curtis + Ginsberg Architects (C+GA) is an award-winning architecture and planning firm whose work focuses on serving the needs of our clients, the community, and the environment. The firm was founded in 1990 on the belief that everyone deserves access to quality design. This mission-driven approach guides our innovation in sustainable design and commitment to equitable neighborhoods as we work across multifamily, mixed-use, institutional, nonprofit, and cultural projects at all scales. C+GA has significant experience with Passive House, Enterprise Green Communities, and LEED certification. C+GA is a certified woman-owned business enterprise (WBE).

Sectors: Commercial, Institutional, Multifamily
WMBE: Women or BIPOC Owned
Service Area: New York
Professional Specialties: Architecture/Design, Passive House

  Industry Leader NESEA Member  


475 Fifth Ave.
New York , New York 10017
Phone: (212) 340-7400

Daikin is a leading innovator and worldwide provider of advanced, high-quality air conditioning and heating solutions for residential, commercial, and industrial applications. With more than 90 years of operation, Daikin has sold millions of systems throughout 140 countries. But what makes us great isn't just our HVAC systems. It's our personal service, commitment to quality, and technological innovations that allow us to be a leading HVAC manufacturer.

Sectors: Commercial, Institutional, Industrial, Multifamily, Single Family
Service Area: Entire Northeast Region
Professional Specialties: HVAC

Dannick Carpentry LLC

197 Ethan Allen highway
Ridgefield , Connecticut 06877
Phone: (203) 512-1211

Remodeling, restoration, kitchens, bathrooms, and additions. General contracting and project management.

Sectors: Single Family
Service Area: Connecticut
Professional Specialties: Carpentry/Cabinetry, General Contractor, Remodeling/Renovation

David Matero Architecture

49 Centre St.
Bath , Maine 04530
Phone: (207) 389-4278

David Matero Architecture is a full-service LEED AP architect specializing in residential, commercial, historic, green, and restaurant architecture.

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

David Murray Architect

61 Church Hill Rd.
New Paltz , New York 12561
Phone: (845) 768-2095

David Murray is a NYS licensed Architect based in New Paltz, New York. His practice consists of residential and commercial projects in traditional and contemporary styles. The designs utilize green strategies and products with superinsulated, energy-efficient design as a priority. This is a small firm with great ideas and excellent client service.

Sectors: Commercial, Institutional, Single Family
Service Area: New York
Professional Specialties: Architecture/Design, Net Zero, Passive House

Daystar Builders

32 Rand RD.
Henniker , New Hampshire 03242
Phone: (603) 428-7979

With many decades of experience, we can help you design and build your home or addition through an iterative process using 3D modeling. As both designers and builders we are afforded a unique perspective when helping to determine priorities and strike a balance between cost, performance and aesthetics.

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


94 S Pine Ave
Albany , New York 12208
Phone: (607) 351-6798

Providing design services for all phases of a project, from site layout to interior design, I incorporate the tenets of sustainable design into each project I create. My projects span from boutique office interiors to historic restorations and renovations. Simplicity, quality, and timelessness are the tenets that inform my design sense.

Sectors: Commercial, Single Family
WMBE: Women or BIPOC Owned
Service Area: New York
Professional Specialties: Architecture/Design, Historic Restoration

Decumanus Green Design/Build, Inc.

29 Edgewood Dr., Ste. 2
Lenox , Massachusetts 01240
Phone: (413) 281-0046

Decumanus Green provides both design and construction services. Whether you are looking to build new or remodel, we can help you visualize and realize a new home that fits within your budget. At Decumanus Green, we strive to make all of our building practices as environmentally responsible as possible and our homes and additions as energy-efficient as possible. We keep ourselves abreast of the constantly developing world of sustainable design and building.

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

  Midsize NESEA Business Member  

Delphi Construction

255 Bear Hill Rd.
Waltham , Massachusetts 02451
Phone: (781) 879-3603

At Delphi, we are committed to green building and sustainability. We provide training for all staff and work to improve our ability to deliver green/sustainable buildings to our clients. We strive to make Delphi an ever more sustainable company through improved corporate governance.

Sectors: Commercial, Institutional, Industrial, Multifamily
Service Area: Massachusetts
Professional Specialties: Construction Management, General Contractor

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


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.