Company lists · Data refreshed September 2026

Top 25 Net-zero building design firms based in the United States

Name: Net-zero building design firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 939 companies tracked

RevenueBase identified 939 net-zero building design firms headquartered in the United States as of September 2026 and tracks 12,817 professional contacts across them, including 6,380 with verified work emails. New York is the largest hub.

This list covers net-zero building design firms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

939Companies

12,817Contacts tracked

6,380Verified emails

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The 25 largest net-zero building design firms based in the United States

Ranked by team size

Top 25 of 939 net-zero building design firms based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to net-zero building design firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Mckinstry	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,213 contacts →
	Indirect evidence “We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Source: RevenueBase Database · checked Sep 17, 2026
2	DLR Group	Strong evidence	30 Offices, MN, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,992 contacts →
	Strong evidence “DLR Group is an integrated design firm delivering architecture, engineering, interiors, planning, and building optimization for new construction, renovation, and adaptive reuse.” Source: RevenueBase Database · checked Sep 17, 2026
3	OLA	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	n/a	1,145 contacts →
	Partial evidence “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Source: RevenueBase Database · checked Sep 17, 2026
4	PAE	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	201-500	744 contacts →
	Partial evidence “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Source: RevenueBase Database · checked Sep 17, 2026
5	Performance Services	Strong evidence	Indianapolis, IN, United StatesHQ checked Sep 17, 2026	201-500	328 contacts →
	Strong evidence “We design and construct high-performing buildings and systems.” Source: RevenueBase Database · checked Sep 17, 2026
6	AMA Group	Indirect evidence	New York, NY, United StatesHQ checked Sep 17, 2026	201-500	233 contacts →
	Indirect evidence “As of November of 2025, AMA Group has merged with CMTA!” Source: RevenueBase Database · checked Sep 17, 2026
7	Setty & Associates	Indirect evidence	Washington, DC, United StatesHQ checked Sep 17, 2026	201-500	220 contacts →
	Indirect evidence “Established in 1984, SETTY is headquartered in Fairfax, VA, with offices in Atlanta, GA, Baltimore, MD, Charlottesville, VA, Fairfax, VA, Los Angeles, CA, New York, NY…” Source: RevenueBase Database · checked Sep 17, 2026
8	Steven Winter Associates	Indirect evidence	Norwalk, CT, United StatesHQ checked Sep 17, 2026	51-200	142 contacts →
	Indirect evidence “For over five decades, we’ve been at the forefront of transforming the built environment to be more energy efficient, accessible, healthy, and resilient.” Source: RevenueBase Database · checked Sep 17, 2026
9	EHDD	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 17, 2026	51-200	86 contacts →
	Indirect evidence “We create transformative places of belonging and impact.” Source: RevenueBase Database · checked Sep 17, 2026
10	Gsbs Architects	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 17, 2026	51-200	85 contacts →
	Indirect evidence “GSBS is at the forefront of architecture's bright, sustainable future, fostering healthier lives, more positive interactions and a brighter environment.” Source: RevenueBase Database · checked Sep 17, 2026
11	Adrian Smith Gordon Gill Architecture	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	51-200	85 contacts →
	Partial evidence “Adrian Smith + Gordon Gill Architecture is dedicated to the design of high-performance, sustainable architecture on an international scale.” Source: RevenueBase Database · checked Sep 17, 2026
12	Magrann Associates	Partial evidence	Mount Laurel, NJ, United StatesHQ checked Sep 17, 2026	51-200	81 contacts →
	Partial evidence “MaGrann Associates is an innovative energy efficiency and green building consulting and engineering firm headquartered in Mount Laurel, New Jersey with additional offices in…” Source: RevenueBase Database · checked Sep 17, 2026
13	Dextall	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 17, 2026	51-200	78 contacts →
	Indirect evidence “Our Mission: To accelerate decarbonization of the environment TODAY by bringing affordable and efficient solutions to build sustainably.” Source: RevenueBase Database · checked Sep 17, 2026
14	Bensonwood	Strong evidence	Walpole, NH, United StatesHQ checked Sep 17, 2026	51-200	76 contacts →
	Strong evidence “Bensonwood is a design/build firm producing sustainable, energy-efficient residential and commercial buildings with a strong emphasis on offsite fabrication and minimization of…” Source: RevenueBase Database · checked Sep 17, 2026
15	Home Front Build	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 17, 2026	11-50	75 contacts →
	Partial evidence “Home Front is a design/build construction company specializing in green construction and preservation.” Source: RevenueBase Database · checked Sep 17, 2026
16	King King Architects	Partial evidence	Syracuse, NY, United StatesHQ checked Sep 17, 2026	51-200	70 contacts →
	Partial evidence “We want to be the best architectural design firm.” Source: RevenueBase Database · checked Sep 17, 2026
17	Ashley Mcgraw Architects, D.P.C	Indirect evidence	Syracuse, NY, United StatesHQ checked Sep 17, 2026	51-200	69 contacts →
	Indirect evidence “Ashley McGraw is committed to the idea that equitable, sustainable communities form the foundation of a future where humans thrive.” Source: RevenueBase Database · checked Sep 17, 2026
18	Baumann Consulting	Indirect evidence	Washington, DC, United StatesHQ checked Sep 17, 2026	51-200	63 contacts →
	Indirect evidence “Baumann Consulting is driven to deliver solutions for a carbon-neutral real estate industry.” Source: RevenueBase Database · checked Sep 17, 2026
19	Epsten Group, A Salas O'brien Company	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 17, 2026	51-200	59 contacts →
	Indirect evidence “At Epsten Group, we pride ourselves on being a pioneer for sustainability in the built environment.” Source: RevenueBase Database · checked Sep 17, 2026
20	Fitzgerald	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	11-50	56 contacts →
	Partial evidence “With roots dating back more than 100 years, FitzGerald is a national architecture, interior design, and sustainability firm committed to the creation of exemplary environments…” Source: RevenueBase Database · checked Sep 17, 2026
21	Blue Star	Partial evidence	Washington, DC, United StatesHQ checked Sep 17, 2026	11-50	54 contacts →
	Partial evidence “Blue Star is a full service design build firm working in Washington, DC.” Source: RevenueBase Database · checked Sep 17, 2026
22	Infinity Group	Partial evidence	Hartford, CT, United StatesHQ checked Sep 17, 2026	51-200	53 contacts →
	Partial evidence “Austin \| Boston \| Chicago \| Hartford \| New York \| San Francisco Infinity Group is a design-driven architecture and construction firm.” Source: RevenueBase Database · checked Sep 17, 2026
23	Insight Homes	Indirect evidence	Bridgeville, DE, United StatesHQ checked Sep 17, 2026	11-50	48 contacts →
	Indirect evidence “Insight Homes is not your average builder in Southern Delaware.” Source: RevenueBase Database · checked Sep 17, 2026
24	Altura	Indirect evidence	Newport Beach, CA, United StatesHQ checked Sep 17, 2026	51-200	47 contacts →
	Indirect evidence “Altura is a new breed of engineering consulting firm, delivering everything it takes to guide owners to realizing climate and carbon goals by improving energy, environmental, and…” Source: RevenueBase Database · checked Sep 17, 2026
25	LDA Architecture & Interiors	Partial evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	11-50	46 contacts →
	Partial evidence “Founded in 1992, LDa has provided award-winning design solutions for a wide range of clients throughout New England, practicing in the residential, interior design, commercial…” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: net-zero building design firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names net-zero building design firms.
Partial evidence: Its own public description names part of net-zero building design firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name net-zero building design firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 939 net-zero building design firms based in the United States

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Net-zero building design firms based in the United States at a glance

As of Sep 17, 2026

49.8%Verified-email coverage

13.6Average contacts per company

1-10Median size (employees)

5.6%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

681

11-50

212

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 939 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among net-zero building design firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “net-zero building design firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names net-zero building design firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among net-zero building design firms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 6,380 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Net-zero building design firms by metro

Net-zero building design firms in New York53

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names net-zero building design firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many net-zero building design firms are there based in the United States?

RevenueBase identified 939 net-zero building design firms headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Mckinstry, headquartered in Seattle, tops this list with the largest team on record.

Which city has the most net-zero building design firms?

New York leads with 53 headquartered companies, followed by Portland (24) and Seattle (20).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 6,380 verified decision-maker contacts tracked across these 939 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.