Company lists · Data refreshed September 2026

Top 25 Climate responsive architecture firms based in the United States

Name: Climate responsive architecture 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 16, 2026 4,589 companies tracked

RevenueBase identified 4,589 climate responsive architecture firms headquartered in the United States as of September 2026 and tracks 93,279 professional contacts across them, including 46,806 with verified work emails. New York is the largest hub.

This list covers climate responsive architecture 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 16, 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 16, 2026 86% judged on-target in blind review

4,589Companies

93,279Contacts tracked

46,806Verified emails

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The 25 largest climate responsive architecture firms based in the United States

Ranked by team size

Top 25 of 4,589 climate responsive architecture firms based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to climate responsive architecture 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	Gensler	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	5,001-10,000	7,900 contacts →
	Partial evidence “Gensler is a global architecture, design, and planning firm with 57 locations across the Americas, Europe, Greater China, Asia Pacific, and the Middle East.” Source: RevenueBase Database · checked Sep 16, 2026
2	Perkins&will	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,958 contacts →
	Indirect evidence “Since 1935, we’ve believed that design has the power to make the world a better, more beautiful place.” Source: RevenueBase Database · checked Sep 16, 2026
3	HOK	Indirect evidence	New York, NY, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,614 contacts →
	Indirect evidence “HOK is a global interdisciplinary design firm.” Source: RevenueBase Database · checked Sep 16, 2026
4	Hks, INC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,462 contacts →
	Indirect evidence “We are a global firm of architects, designers, planners and advisors who create places noted for their beauty and performance.” Source: RevenueBase Database · checked Sep 16, 2026
5	DLR Group	Partial evidence	30 Offices, MN, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,992 contacts →
	Partial 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 16, 2026
6	Skidmore, Owings & Merrill SOM	Partial evidence	New York, NY, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,967 contacts →
	Partial evidence “Skidmore, Owings & Merrill (SOM) is a global practice of architects, designers, engineers, and planners, responsible for some of the world’s most technically and environmentally…” Source: RevenueBase Database · checked Sep 16, 2026
7	PAGE	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,191 contacts →
	Indirect evidence “Performance by Design.” Source: RevenueBase Database · checked Sep 16, 2026
8	OLA	Indirect evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	n/a	1,145 contacts →
	Indirect 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 16, 2026
9	The Beck Group	Partial evidence	Dallas, TX, United StatesHQ checked Sep 16, 2026	501-1,000	1,054 contacts →
	Partial evidence “We integrate architecture, construction, sustainability, and technology to transform how our clients design and build.” Source: RevenueBase Database · checked Sep 16, 2026
10	KPF	Indirect evidence	New York, NY, United StatesHQ checked Sep 16, 2026	501-1,000	970 contacts →
	Indirect evidence “KPF is dedicated to transforming cities through impactful design, collaborating closely with the world’s most forward-thinking clients to create high performing, carefully crafted…” Source: RevenueBase Database · checked Sep 16, 2026
11	PBK	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	1,001-5,000	892 contacts →
	Partial evidence “PBK is an award-winning architecture, engineering and consulting practice that has been a leader in design solutions for education, healthcare, corporate, government and…” Source: RevenueBase Database · checked Sep 16, 2026
12	ZGF Architects	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	501-1,000	829 contacts →
	Indirect evidence “With our origins in Oregon, attention to craft and beauty is elemental to the ZGF culture.” Source: RevenueBase Database · checked Sep 16, 2026
13	Introba	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 16, 2026	1,001-5,000	822 contacts →
	Indirect evidence “Introba is one of the world’s largest building engineering and consulting firms with more than employees in offices across the United States, Canada, the United Kingdom, Serbia…” Source: RevenueBase Database · checked Sep 16, 2026
14	Nbbj Design	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	501-1,000	808 contacts →
	Partial evidence “NBBJ is an ideas-driven architecture and design firm dedicated to creating connected communities, healthier buildings and a more resilient environment.” Source: RevenueBase Database · checked Sep 16, 2026
15	PAE	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	201-500	744 contacts →
	Indirect evidence “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Source: RevenueBase Database · checked Sep 16, 2026
16	Lpa, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 16, 2026	501-1,000	728 contacts →
	Indirect evidence “Since LPA was founded in 1965, it's been our mission to deliver timeless, sustainable designs that benefit the environment, generate lasting value, enrich the human experience and…” Source: RevenueBase Database · checked Sep 16, 2026
17	Ls3p Associates LTD	Partial evidence	Charleston, SC, United StatesHQ checked Sep 16, 2026	201-500	530 contacts →
	Partial evidence “LS3P is an architecture, interiors, and planning firm celebrating more than 60 years of design excellence.” Source: RevenueBase Database · checked Sep 16, 2026
18	Ewingcole	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 16, 2026	201-500	509 contacts →
	Partial evidence “EwingCole is a nationally recognized architecture, engineering, interior design, and planning firm with offices in Atlanta, Baltimore, Charlotte, Fort Worth, Irvine, New York…” Source: RevenueBase Database · checked Sep 16, 2026
19	Little Diversified Architectural Consulting	Partial evidence	Little Global, VA, United StatesHQ checked Sep 16, 2026	201-500	509 contacts →
	Partial evidence “At Little, we deliver results far beyond architecture-results you wouldn’t expect from an architectural firm.” Source: RevenueBase Database · checked Sep 16, 2026
20	Rockwell Group	Partial evidence	New York, NY, United StatesHQ checked Sep 16, 2026	201-500	481 contacts →
	Partial evidence “Rockwell Group is a multidisciplinary architecture and design firm that balances creativity, innovation, and thought leadership with every undertaking.” Source: RevenueBase Database · checked Sep 16, 2026
21	TVS	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 16, 2026	51-200	467 contacts →
	Partial evidence “TVS is an award-winning architecture and interior design firm headquartered in Atlanta, GA with global project expertise.” Source: RevenueBase Database · checked Sep 16, 2026
22	Estudio Architecture	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	n/a	390 contacts →
	Partial evidence “eStudio is a specialized full service architectural and boutique design firm.” Source: RevenueBase Database · checked Sep 16, 2026
23	Glumac	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	201-500	386 contacts →
	Indirect evidence “Glumac, a Tetra Tech Company, is a global leader in building engineering, committed to delivering a low carbon future for all.” Source: RevenueBase Database · checked Sep 16, 2026
24	Newcomb & Boyd, LLP	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 16, 2026	201-500	363 contacts →
	Indirect evidence “We help clients design and operate facilities that remain resilient, reliable, and ready for what's next.” Source: RevenueBase Database · checked Sep 16, 2026
25	Ramsa Robert A.M. Stern Architects	Indirect evidence	New York, NY, United StatesHQ checked Sep 16, 2026	201-500	352 contacts →
	Indirect evidence “RAMSA \| Robert A.M.” Source: RevenueBase Database · checked Sep 16, 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: climate responsive architecture 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 climate responsive architecture firms.
Partial evidence: Its own public description names part of climate responsive architecture firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate responsive architecture 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 4,589 climate responsive architecture firms based in the United States

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Climate responsive architecture firms based in the United States at a glance

As of Sep 16, 2026

50.2%Verified-email coverage

20.3Average contacts per company

1-10Median size (employees)

7.7%Largest-city concentration · New York

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

2,918

11-50

1,364

51-200

238

201-500

501-1,000

1,001-5,000

5,001-10,000

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 4,589 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 climate responsive architecture 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 “climate responsive architecture 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 climate responsive architecture 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 climate responsive architecture 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, 46,806 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 16, 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.

Climate responsive architecture firms by metro

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 climate responsive architecture 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 climate responsive architecture firms are there based in the United States?

RevenueBase identified 4,589 climate responsive architecture 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?

Gensler, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most climate responsive architecture firms?

New York leads with 354 headquartered companies, followed by Los Angeles (141) and Seattle (123).

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 46,806 verified decision-maker contacts tracked across these 4,589 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 16, 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.