Company lists · Data refreshed September 2026

Top 25 Facilities consulting firms based in the United States

Name: Facilities consulting 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 28, 2026 6,329 companies tracked

RevenueBase identified 6,329 facilities consulting firms headquartered in the United States as of September 2026 and tracks 165,530 professional contacts across them, including 82,213 with verified work emails. New York is the largest hub.

This list covers facilities consulting 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 28, 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 28, 2026 86% judged on-target in blind review

6,329Companies

165,530Contacts tracked

82,213Verified emails

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The 25 largest facilities consulting firms based in the United States

Ranked by team size

Top 25 of 6,329 facilities consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to facilities consulting 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	Kimley-Horn	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 28, 2026	5,001-10,000	10,117 contacts →
	Partial evidence “Kimley-Horn is one of the nation’s premier planning and design consulting firms.” Source: RevenueBase Database · checked Sep 28, 2026
2	WSP In The U.S	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	10001+	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 28, 2026
3	Ips-Integrated Project Services	Partial evidence	Blue Bell, PA, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,577 contacts →
	Partial evidence “IPS, a Berkshire Hathaway company, is a global leader in technical consulting, architecture, engineering, procurement, construction management, commissioning, qualification…” Source: RevenueBase Database · checked Sep 28, 2026
4	DLR Group	Indirect evidence	30 Offices, MN, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,992 contacts →
	Indirect 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 28, 2026
5	IMEG	Indirect evidence	Rock Island, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,985 contacts →
	Indirect evidence “Leaders in Engineering and Innovation.” Source: RevenueBase Database · checked Sep 28, 2026
6	LJA	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,932 contacts →
	Indirect evidence “Employee-Owned.” Source: RevenueBase Database · checked Sep 28, 2026
7	Smithgroup	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,849 contacts →
	Indirect evidence “SmithGroup is an award-winning, multi-national integrated design firm that employs research, data, advanced technologies and design thinking to help clients solve their greatest…” Source: RevenueBase Database · checked Sep 28, 2026
8	Able Services	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	10001+	1,743 contacts →
	Indirect evidence “Able Services has joined ABM Industries, a historic acquisition that holds limitless potential for growth.” Source: RevenueBase Database · checked Sep 28, 2026
9	IA Interior Architects	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	501-1,000	1,584 contacts →
	Indirect evidence “Celebrating 40 years of visionary design and innovation, IA Interior Architects is the first global architecture firm focused exclusively on interiors.” Source: RevenueBase Database · checked Sep 28, 2026
10	Exponent	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,560 contacts →
	Partial evidence “In an era of accelerating change, Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most…” Source: RevenueBase Database · checked Sep 28, 2026
11	Davey Resource Group, INC	Partial evidence	Kent, OH, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,395 contacts →
	Partial evidence “Davey Resource Group, Inc.(DRG) provides innovative consulting and field services that support utility infrastructure and environmental stewardship.” Source: RevenueBase Database · checked Sep 28, 2026
12	PAGE	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,191 contacts →
	Indirect evidence “Performance by Design.” Source: RevenueBase Database · checked Sep 28, 2026
13	Henderson Engineers	Indirect evidence	Lenexa, KS, United StatesHQ checked Sep 28, 2026	501-1,000	1,040 contacts →
	Indirect evidence “Henderson Engineers is a national building systems design firm with a wide array of engineering services and a portfolio representing a full range of markets including business…” Source: RevenueBase Database · checked Sep 28, 2026
14	Ware Malcomb	Indirect evidence	International Design Firm, United StatesHQ checked Sep 28, 2026	501-1,000	992 contacts →
	Indirect evidence “Established in 1972, Ware Malcomb is a dynamic, forward-thinking design firm offering streamlined architecture, interior design, branding, and engineering services across the…” Source: RevenueBase Database · checked Sep 28, 2026
15	Savills North America	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	895 contacts →
	Indirect evidence “At Savills, we help organizations find the solutions that ensure employee success.” Source: RevenueBase Database · checked Sep 28, 2026
16	PBK	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 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 28, 2026
17	Coffman Engineers	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	501-1,000	859 contacts →
	Indirect evidence “The right team is more than an advantage.” Source: RevenueBase Database · checked Sep 28, 2026
18	Introba	Partial evidence	St Louis, MO, United StatesHQ checked Sep 28, 2026	1,001-5,000	822 contacts →
	Partial 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 28, 2026
19	Syska Hennessy Group	Indirect evidence	New York, United StatesHQ checked Sep 28, 2026	501-1,000	803 contacts →
	Indirect evidence “Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.” Source: RevenueBase Database · checked Sep 28, 2026
20	GPD Group	Indirect evidence	Akron, OH, United StatesHQ checked Sep 28, 2026	501-1,000	786 contacts →
	Indirect evidence “Founded in 1961, GPD Group (GPD) has grown from only a handful of people to over 870 professionals in 14 offices located in Akron, Atlanta, Cleveland, Columbus, Dallas…” Source: RevenueBase Database · checked Sep 28, 2026
21	Psomas	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	501-1,000	748 contacts →
	Indirect evidence “Our award-winning projects are produced through innovation, creativity, and technical expertise.” Source: RevenueBase Database · checked Sep 28, 2026
22	M3 Engineering & Technology Corp	Indirect evidence	Tucson, AZ, United StatesHQ checked Sep 28, 2026	501-1,000	707 contacts →
	Indirect evidence “M3 is a privately held full service design firm.” Source: RevenueBase Database · checked Sep 28, 2026
23	H2m Architects Engineers	Partial evidence	Melville, NY, United StatesHQ checked Sep 28, 2026	501-1,000	692 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 28, 2026
24	Fishbeck	Indirect evidence	Grand Rapids, MI, United StatesHQ checked Sep 28, 2026	501-1,000	671 contacts →
	Indirect evidence “We are engineers, architects, scientists, and constructors in the business of problem solving, inspiring results, and bringing ideas to life.” Source: RevenueBase Database · checked Sep 28, 2026
25	Ghafari Associates	Indirect evidence	Dearborn, MI, United StatesHQ checked Sep 28, 2026	501-1,000	670 contacts →
	Indirect evidence “An innovator since 1982, Ghafari embraces an integrated design approach to deliver solutions that synergize building operations, systems, and people.” Source: RevenueBase Database · checked Sep 28, 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: facilities consulting 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 facilities consulting firms.
Partial evidence: Its own public description names part of facilities consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name facilities consulting 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 6,329 facilities consulting firms based in the United States

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Facilities consulting firms based in the United States at a glance

As of Sep 28, 2026

49.7%Verified-email coverage

26.2Average contacts per company

1-10Median size (employees)

4.8%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

3,595

11-50

1,988

51-200

540

201-500

113

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 6,329 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 facilities consulting 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 “facilities consulting 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 facilities consulting 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 facilities consulting 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, 82,213 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 28, 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.

Facilities consulting 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 facilities consulting 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 facilities consulting firms are there based in the United States?

RevenueBase identified 6,329 facilities consulting 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?

Kimley-Horn, headquartered in Raleigh, tops this list with the largest team on record.

Which city has the most facilities consulting firms?

New York leads with 304 headquartered companies, followed by Chicago (131) and Houston (128).

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 82,213 verified decision-maker contacts tracked across these 6,329 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 28, 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.