Company lists · Data refreshed September 2026

Top 25 Foundation consultants worldwide

Name: Foundation consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 17,021 companies tracked

RevenueBase identified 17,021 foundation consultants worldwide as of September 2026 and tracks 223,463 professional contacts across them, including 75,060 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers foundation consultants 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 19, 2026. Country and city lists for foundation consultants 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 19, 2026 86% judged on-target in blind review

17,021Companies

223,463Contacts tracked

75,060Verified emails

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The 25 largest foundation consultants worldwide

Ranked by team size

Top 25 of 17,021 foundation consultants worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to foundation consultants: 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	Terracon	Indirect evidence	Olathe, KS, United StatesHQ checked Sep 19, 2026	5,001-10,000	6,113 contacts →
	Indirect evidence “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Source: RevenueBase Database · checked Sep 19, 2026
2	Multiconsult	Indirect evidence	Oslo, NorwayHQ checked Sep 19, 2026	1,001-5,000	2,553 contacts →
	Indirect evidence “Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.” Source: RevenueBase Database · checked Sep 19, 2026
3	ECS Group Of Companies	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,210 contacts →
	Indirect evidence “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Source: RevenueBase Database · checked Sep 19, 2026
4	Baker Construction	Indirect evidence	Monroe, OH, United StatesHQ checked Sep 19, 2026	10001+	2,019 contacts →
	Indirect evidence “The nation's largest concrete contractor, Baker Construction specializes in all types of concrete construction and related solutions, including civil construction, deep…” Source: RevenueBase Database · checked Sep 19, 2026
5	UES	Indirect evidence	Orlando, FL, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,595 contacts →
	Indirect evidence “UES provides professional engineering, environmental, testing and inspection services to clients across the United States.” Source: RevenueBase Database · checked Sep 19, 2026
6	RENCO	Indirect evidence	Pesaro, ItalyHQ checked Sep 19, 2026	1,001-5,000	1,494 contacts →
	Indirect evidence “Renco S.p.A, an Italian company founded in 1979, is continually committed to providing its Clients with sound business solutions in an ever increasingly complex and challenging…” Source: RevenueBase Database · checked Sep 19, 2026
7	GPI Greenman-Pedersen, INC	Indirect evidence	Melville, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,354 contacts →
	Indirect evidence “With a staff of over 1,800 professionals, Greenman-Pedersen, Inc.(GPI) is a leading engineering consulting firm that specializes in the innovative design and construction of…” Source: RevenueBase Database · checked Sep 19, 2026
8	Atwell, LLC	Indirect evidence	Southfield, MI, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,290 contacts →
	Indirect evidence “Atwell is a full-service consulting, engineering and construction services firm that delivers a broad range of creative solutions to clients in the real estate and land…” Source: RevenueBase Database · checked Sep 19, 2026
9	Rimkus	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,184 contacts →
	Partial evidence “Consultants.” Source: RevenueBase Database · checked Sep 19, 2026
10	Simpson Gumpertz & Heger SGH	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 19, 2026	501-1,000	942 contacts →
	Indirect evidence “Simpson Gumpertz & Heger (SGH) is a national engineering firm committed to delivering holistic advice for our clients’ most complex challenges.” Source: RevenueBase Database · checked Sep 19, 2026
11	Robert Bird Group	Partial evidence	Brisbane, AustraliaHQ checked Sep 19, 2026	501-1,000	872 contacts →
	Partial evidence “Robert Bird Group (RBG), member of the Surbana Jurong Group, is a specialist structural, civil and construction engineering consultancy with over 800 employees across 12 offices…” Source: RevenueBase Database · checked Sep 19, 2026
12	Coffman Engineers	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	501-1,000	859 contacts →
	Indirect evidence “The right team is more than an advantage.” Source: RevenueBase Database · checked Sep 19, 2026
13	Professional Service Industries, Inc. PSI	Indirect evidence	Arlington Heights, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	778 contacts →
	Indirect evidence “Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…” Source: RevenueBase Database · checked Sep 19, 2026
14	Bg&e	Partial evidence	Millers Point, United KingdomHQ checked Sep 19, 2026	501-1,000	759 contacts →
	Partial evidence “BG & E is a civil and structural engineering consultancy, celebrated for our innovative, award-winning designs that prioritise practicality and constructability.” Source: RevenueBase Database · checked Sep 19, 2026
15	Parlym	Indirect evidence	Estaque, FranceHQ checked Sep 19, 2026	1,001-5,000	732 contacts →
	Indirect evidence “For over 50 years the Parlym Group has managed to establish itself as a major player in industrial engineering all over the world.” Source: RevenueBase Database · checked Sep 19, 2026
16	Integral S.A. Ingenieros Consultores	Partial evidence	Medellín \| Bogotá \| Lima \| Miami \| Nueva Delhi, ColombiaHQ checked Sep 19, 2026	1,001-5,000	709 contacts →
	Partial evidence “Over six decades offering our consultancy services locally and internationally, based on ethical principles and commitments, always through honest, socially responsible actions…” Source: RevenueBase Database · checked Sep 19, 2026
17	Schnabel Engineering	Partial evidence	Glen Allen, VA, United StatesHQ checked Sep 19, 2026	501-1,000	707 contacts →
	Partial evidence “Schnabel is a trusted partner in building the foundation for project success.” Source: RevenueBase Database · checked Sep 19, 2026
18	Tower Engineering Professionals	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	1,001-5,000	707 contacts →
	Indirect evidence “Tower Engineer Professionals was founded in 1997 by two tower-climbing engineers.” Source: RevenueBase Database · checked Sep 19, 2026
19	Sondotécnica Engenharia	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	201-500	588 contacts →
	Indirect evidence “Sondotécnica was founded in 1954.” Source: RevenueBase Database · checked Sep 19, 2026
20	Raba Kistner, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 19, 2026	501-1,000	582 contacts →
	Indirect evidence “Founded in 1968, Raba Kistner Inc.” Source: RevenueBase Database · checked Sep 19, 2026
21	Amstein Walthert	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 19, 2026	1,001-5,000	563 contacts →
	Indirect evidence “Ü Ingenieurskunst bedeutet, mit Ressourcen richtig umzugehen.” Source: RevenueBase Database · checked Sep 19, 2026
22	H&h	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	501-1,000	530 contacts →
	Indirect evidence “With more than 139 years of experience, H&H is a trusted, full-service infrastructure engineering firm delivering complex, forward-looking solutions that advance our clients’…” Source: RevenueBase Database · checked Sep 19, 2026
23	Nova Engineering And Environmental, LLC	Indirect evidence	Kennesaw, GA, United StatesHQ checked Sep 19, 2026	501-1,000	518 contacts →
	Indirect evidence “Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…” Source: RevenueBase Database · checked Sep 19, 2026
24	RTM Engineering Consultants	Indirect evidence	Schaumburg, IL, United StatesHQ checked Sep 19, 2026	201-500	516 contacts →
	Indirect evidence “We are an engineering firm that goes beyond a typical consulting role.” Source: RevenueBase Database · checked Sep 19, 2026
25	Socotec US	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1,001-5,000	492 contacts →
	Indirect evidence “Welcome to SOCOTEC in the US, Trusted Expertise, From the Ground Up.” Source: RevenueBase Database · checked Sep 19, 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: foundation consultants. 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 foundation consultants.
Partial evidence: Its own public description names part of foundation consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name foundation consultants. 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 17,021 foundation consultants worldwide

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Foundation consultants worldwide at a glance

As of Sep 19, 2026

33.6%Verified-email coverage

13.1Average contacts per company

1-10Median size (employees)

1.5%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

9,310

11-50

5,450

51-200

1,648

201-500

348

501-1,000

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 foundation consultants, 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 foundation consultants are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “foundation consultants”. 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 foundation consultants), 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 foundation consultants, 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, 75,060 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 19, 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.

Foundation consultants by location

68 lists · largest first

Every Foundation consultants 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 foundation consultants, 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 foundation consultants are there worldwide?

RevenueBase identified 17,021 foundation consultants 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?

Terracon, headquartered in Olathe, tops this list with the largest team on record.

Which country has the most foundation consultants?

The United States leads with 3,824 companies, followed by Brazil (1,565) and France (836). Every foundation consultants list by country and city is linked on this page.

Which city has the most foundation consultants?

Sao Paulo leads with 258 headquartered companies, followed by Houston (108) and Belo Horizonte (105).

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 75,060 verified decision-maker contacts tracked across these 17,021 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 19, 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.