Company lists · Data refreshed September 2026

Top 25 Leed certified architects based in the United States

RevenueBase identified 5,816 leed certified architects headquartered in the United States as of September 2026 and tracks 99,237 professional contacts across them, including 49,399 with verified work emails. New York is the largest hub.

This list covers leed certified architects 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
5,816Companies
99,237Contacts tracked
49,399Verified emails
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The 25 largest leed certified architects based in the United States

Ranked by team size
Top 25 of 5,816 leed certified architects 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 leed certified architects: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNew York, NY, United StatesHQ checked Sep 17, 202610001+9,318 contacts →

Indirect evidence

“What if you could shape built and natural environments – and the future of those that use them?”

Source: RevenueBase Database · checked Sep 17, 2026
2Indirect evidenceChicago, IL, United StatesHQ checked Sep 17, 20261,001-5,0002,958 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 17, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 17, 20261,001-5,0002,614 contacts →

Indirect evidence

“HOK is a global interdisciplinary design firm.”

Source: RevenueBase Database · checked Sep 17, 2026
4Partial evidence30 Offices, MN, United StatesHQ checked Sep 17, 20261,001-5,0001,992 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 17, 2026
5Indirect evidenceRock Island, IL, United StatesHQ checked Sep 17, 20261,001-5,0001,985 contacts →

Indirect evidence

“Leaders in Engineering and Innovation.”

Source: RevenueBase Database · checked Sep 17, 2026
6Indirect evidenceAustin, TX, United StatesHQ checked Sep 17, 2026n/a1,145 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 17, 2026
7Partial evidenceDallas, TX, United StatesHQ checked Sep 17, 2026501-1,0001,054 contacts →

Partial evidence

“We integrate architecture, construction, sustainability, and technology to transform how our clients design and build.”

Source: RevenueBase Database · checked Sep 17, 2026
8Indirect evidenceNew York, NY, United StatesHQ checked Sep 17, 2026501-1,000970 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 17, 2026
9Indirect evidenceSt Louis, MO, United StatesHQ checked Sep 17, 20261,001-5,000822 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 17, 2026
10Indirect evidencePortland, OR, United StatesHQ checked Sep 17, 2026201-500744 contacts →

Indirect evidence

“PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.”

Source: RevenueBase Database · checked Sep 17, 2026
11Indirect evidenceIrvine, CA, United StatesHQ checked Sep 17, 2026501-1,000728 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 17, 2026
12Partial evidenceMelville, NY, United StatesHQ checked Sep 17, 2026501-1,000692 contacts →

Partial evidence

“About H2M H2M architects + engineers is a multi-disciplinary professional consulting and design firm, proud of its long history of client service and consistent ability to meet…”

Source: RevenueBase Database · checked Sep 17, 2026
13Partial evidenceBillings, MT, United StatesHQ checked Sep 17, 2026201-500618 contacts →

Partial evidence

“Cushing Terrell was founded in 1938 by architects Ralph Cushing and Everett Terrell.”

Source: RevenueBase Database · checked Sep 17, 2026
14Indirect evidenceBaraboo, WI, United StatesHQ checked Sep 17, 2026501-1,000602 contacts →

Indirect evidence

“As a full-service consulting firm, MSA Professional Services (MSA) is all about creating communities that work.”

Source: RevenueBase Database · checked Sep 17, 2026
15Partial evidenceCharleston, SC, United StatesHQ checked Sep 17, 2026201-500530 contacts →

Partial evidence

“LS3P is an architecture, interiors, and planning firm celebrating more than 60 years of design excellence.”

Source: RevenueBase Database · checked Sep 17, 2026
16Partial evidenceLittle Global, VA, United StatesHQ checked Sep 17, 2026201-500509 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 17, 2026
17Indirect evidenceRoyal Oak, MI, United StatesHQ checked Sep 17, 2026201-500508 contacts →

Indirect evidence

“At HED, great design is about thinking creatively to overcome challenges and improve real world outcomes.”

Source: RevenueBase Database · checked Sep 17, 2026
18Indirect evidenceMinneapolis, MN, United StatesHQ checked Sep 17, 2026501-1,000450 contacts →

Indirect evidence

“SitelogIQ provides design, engineering, and construction management services that help organizations nationwide modernize their facilities and infrastructure.”

Source: RevenueBase Database · checked Sep 17, 2026
19Partial evidenceHouston, TX, United StatesHQ checked Sep 17, 2026n/a390 contacts →

Partial evidence

“eStudio is a specialized full service architectural and boutique design firm.”

Source: RevenueBase Database · checked Sep 17, 2026
20Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 17, 2026201-500386 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 17, 2026
21Indirect evidenceLong Beach, CA, United StatesHQ checked Sep 17, 2026201-500375 contacts →

Indirect evidence

“P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.”

Source: RevenueBase Database · checked Sep 17, 2026
22Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 17, 2026201-500363 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 17, 2026
23Partial evidenceWilliamsville, NY, United StatesHQ checked Sep 17, 2026201-500355 contacts →

Partial evidence

“Wendel is an Architecture, Engineering, Energy Efficiency, and Construction Management Firm that delivers customized solutions and turnkey projects in innovative ways.”

Source: RevenueBase Database · checked Sep 17, 2026
24Partial evidenceAtlanta, GA, United StatesHQ checked Sep 17, 2026201-500336 contacts →

Partial evidence

“Cooper Carry is a national architecture firm that brings an internationally recognized team of design professionals to the wide variety of project types we engage in, all united…”

Source: RevenueBase Database · checked Sep 17, 2026
25Partial evidenceBaltimore, MD, United StatesHQ checked Sep 17, 2026201-500333 contacts →

Partial evidence

“Hord Coplan Macht is an integrated firm offering planning, architecture, landscape architecture, interior design and environmental graphic design with offices in Baltimore…”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 25 of 5,816 leed certified architects based in the United States

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Leed certified architects based in the United States at a glance

As of Sep 17, 2026
49.8%Verified-email coverage
17.1Average contacts per company
1-10Median size (employees)
5.1%Largest-city concentration · New York
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
3,769
11-50
1,684
51-200
279
201-500
47
501-1,000
9
1,001-5,000
10
5,001-10,000
1
10001+
4

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 5,816 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 leed certified architects, 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 “leed certified architects”. 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 leed certified architects), 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 leed certified architects, 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, 49,399 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.

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 leed certified architects, 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 leed certified architects are there based in the United States?

RevenueBase identified 5,816 leed certified architects 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?

WSP In The U.S, headquartered in New York, tops this list with the largest team on record.

Which city has the most leed certified architects?

New York leads with 294 headquartered companies, followed by Los Angeles (129) and Chicago (109).

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 49,399 verified decision-maker contacts tracked across these 5,816 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.