Company lists · Data refreshed September 2026

Top 25 Facilities consulting firms worldwide

Name: Facilities consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 25,587 companies tracked

RevenueBase identified 25,587 facilities consulting firms worldwide as of September 2026 and tracks 385,159 professional contacts across them, including 141,221 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers facilities consulting firms worldwide, 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. Country and city lists for facilities consulting firms follow the table.

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

25,587Companies

385,159Contacts tracked

141,221Verified emails

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The 25 largest facilities consulting firms worldwide

Ranked by team size

Top 25 of 25,587 facilities consulting firms worldwide, 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	Khatib & Alami	Indirect evidence	Downtown, PolandHQ checked Sep 28, 2026	5,001-10,000	5,792 contacts →
	Indirect evidence “Khatib & Alami (K&A) is a multidisciplinary design consultancy which operates primarily across the Middle East & Africa, Levant, Central and South-East Asia, and Europe.” Source: RevenueBase Database · checked Sep 28, 2026
4	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
5	Drees & Sommer	Partial evidence	Stuttgart, GermanyHQ checked Sep 28, 2026	5,001-10,000	3,475 contacts →
	Partial evidence “Uniting opposites to create a world we want to live in Drees & Sommer is a partner-managed, global consulting company providing a single source of consultation and implementation…” Source: RevenueBase Database · checked Sep 28, 2026
6	Rider Levett Bucknall RLB	Indirect evidence	Sydney, United KingdomHQ checked Sep 28, 2026	1,001-5,000	3,299 contacts →
	Indirect evidence “RLB.” Source: RevenueBase Database · checked Sep 28, 2026
7	SJ Group	Indirect evidence	SingaporeHQ checked Sep 28, 2026	10001+	3,277 contacts →
	Indirect evidence “SJ designs spaces and systems that unlock human potential, delivering connection and certainty on shifting ground.” Source: RevenueBase Database · checked Sep 28, 2026
8	KEO International Consultants	Indirect evidence	Safat, KuwaitHQ checked Sep 28, 2026	1,001-5,000	3,038 contacts →
	Indirect evidence “From shaping iconic skylines to crafting sustainable communities, KEO builds legacies for a better tomorrow.” Source: RevenueBase Database · checked Sep 28, 2026
9	Servest SA	Partial evidence	Johannesburg, South AfricaHQ checked Sep 28, 2026	10001+	2,693 contacts →
	Partial evidence “Enhancing Facilities Ecosystems At Servest, we see facilities as living ecosystems – dynamic environments that support people, drive business efficiency and create value over time.” Source: RevenueBase Database · checked Sep 28, 2026
10	Multiconsult	Partial evidence	Oslo, NorwayHQ checked Sep 28, 2026	1,001-5,000	2,553 contacts →
	Partial evidence “Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.” Source: RevenueBase Database · checked Sep 28, 2026
11	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
12	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
13	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
14	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
15	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
16	Linesight	Indirect evidence	Dublin 4, IsraelHQ checked Sep 28, 2026	1,001-5,000	1,722 contacts →
	Indirect evidence “Linesight provides professional consultancy services, management support and strategic advice to the global construction industry.” Source: RevenueBase Database · checked Sep 28, 2026
17	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
18	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
19	DAR Engineering	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 28, 2026	1,001-5,000	1,444 contacts →
	Indirect evidence “DAR Engineering is a leading multidisciplinary consultancy firm providing design, architecture, engineering, project management, construction management and planning services…” Source: RevenueBase Database · checked Sep 28, 2026
20	Ridge And Partners LLP	Indirect evidence	Woodstock, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,427 contacts →
	Indirect evidence “Ridge is a built environment consultancy, helping clients turn complex briefs into buildings and infrastructure that perform in the real world.” Source: RevenueBase Database · checked Sep 28, 2026
21	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
22	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
23	Asplan Viak AS	Indirect evidence	Sandvika, NorwayHQ checked Sep 28, 2026	1,001-5,000	1,074 contacts →
	Indirect evidence “Asplan Viak er et av Norges ledende rådgivnings-selskaper innen plan, arkitektur- og ingeniørfag.” Source: RevenueBase Database · checked Sep 28, 2026
24	BTP Consultants	Indirect evidence	Montigny-le-bretonneux, FranceHQ checked Sep 28, 2026	201-500	1,066 contacts →
	Indirect evidence “BTP Consultants est un bureau de ̂, et présent à l'échelle nationale depuis plus de.” Source: RevenueBase Database · checked Sep 28, 2026
25	GSE	Indirect evidence	Avignon Cedex 1, FranceHQ checked Sep 28, 2026	501-1,000	1,065 contacts →
	Indirect evidence “A global player in Corporate real-estate, GSE ensures design, construction and / or renovation with a commitment of price, delay and quality of its achievements.” 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 25,587 facilities consulting firms worldwide

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Facilities consulting firms worldwide at a glance

As of Sep 28, 2026

36.7%Verified-email coverage

15.1Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

15,378

11-50

7,489

51-200

1,915

201-500

407

501-1,000

151

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for facilities consulting firms are linked below.
What qualifies: Companies worldwide 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.
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, 141,221 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 location

124 lists · largest first

Every Facilities consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 worldwide?

RevenueBase identified 25,587 facilities consulting firms worldwide 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 country has the most facilities consulting firms?

The United States leads with 6,329 companies, followed by France (1,362) and India (1,352). Every facilities consulting firms list by country and city is linked on this page.

Which city has the most facilities consulting firms?

New York leads with 304 headquartered companies, followed by Sao Paulo (275) and London (251).

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 141,221 verified decision-maker contacts tracked across these 25,587 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.