Company lists · Data refreshed September 2026

Top 25 Civil engineering consultancy firms worldwide

Name: Civil engineering consultancy firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 50,786 companies tracked

RevenueBase identified 50,786 civil engineering consultancy firms worldwide as of September 2026 and tracks 1,051,289 professional contacts across them, including 422,532 with verified work emails and 234,629 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers civil engineering consultancy 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 23, 2026. Country and city lists for civil engineering consultancy 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 23, 2026 86% judged on-target in blind review

50,786Companies

1,051,289Contacts tracked

422,532Verified emails

234,629Mobile numbers

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The 25 largest civil engineering consultancy firms worldwide

Ranked by team size

Top 25 of 50,786 civil engineering consultancy firms worldwide, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to civil engineering consultancy 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	AECOM	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 23, 2026	10001+	63,914 contacts →
	Indirect evidence “AECOM is the global infrastructure leader, committed to delivering a better world.” Source: RevenueBase Database · checked Sep 23, 2026
2	Stantec	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 23, 2026	10001+	28,416 contacts →
	Indirect evidence “Stantec empowers clients, people, and communities to rise to the world’s greatest challenges at a time when the world faces more unprecedented concerns than ever before.” Source: RevenueBase Database · checked Sep 23, 2026
3	Kimley-Horn	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 23, 2026	5,001-10,000	10,117 contacts →
	Indirect evidence “Kimley-Horn is one of the nation’s premier planning and design consulting firms.” Source: RevenueBase Database · checked Sep 23, 2026
4	WSP In The U.S	Indirect evidence	New York, NY, United StatesHQ checked Sep 23, 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 23, 2026
5	CDM Smith	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	5,001-10,000	7,527 contacts →
	Indirect evidence “CDM Smith is shaping what’s next, now, with world class solutions in water, environment, transportation and energy to public and private clients worldwide.” Source: RevenueBase Database · checked Sep 23, 2026
6	HNTB	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 23, 2026	5,001-10,000	7,469 contacts →
	Indirect evidence “For over a century, HNTB has shaped the built environment with distinctive expertise across a full spectrum of infrastructure solutions.” Source: RevenueBase Database · checked Sep 23, 2026
7	Terracon	Partial evidence	Olathe, KS, United StatesHQ checked Sep 23, 2026	5,001-10,000	6,113 contacts →
	Partial evidence “Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.” Source: RevenueBase Database · checked Sep 23, 2026
8	Michael Baker International	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 23, 2026	5,001-10,000	4,362 contacts →
	Partial evidence “Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…” Source: RevenueBase Database · checked Sep 23, 2026
9	ICA Ingenieros Civiles Asociados	Indirect evidence	MexicoHQ checked Sep 23, 2026	10001+	3,752 contacts →
	Indirect evidence “Somos una empresa mexicana con 68 años de experiencia en brindar soluciones integrales a retos complejos de infraestructura.” Source: RevenueBase Database · checked Sep 23, 2026
10	Balfour Beatty US	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 23, 2026	1,001-5,000	3,578 contacts →
	Indirect evidence “Balfour Beatty US is an industry-leading provider of general contracting, at-risk construction management and design-build services for public and private sector clients across…” Source: RevenueBase Database · checked Sep 23, 2026
11	STV	Indirect evidence	New York, NY, United StatesHQ checked Sep 23, 2026	1,001-5,000	3,556 contacts →
	Indirect evidence “STV offers professional services for the infrastructure that powers our lives.” Source: RevenueBase Database · checked Sep 23, 2026
12	Norconsult	Strong evidence	Sandvika, NorwayHQ checked Sep 23, 2026	5,001-10,000	3,555 contacts →
	Strong evidence “Norconsult is a multidisciplinary engineering and design consultancy, providing services to clients in the public and private sectors worldwide.” Source: RevenueBase Database · checked Sep 23, 2026
13	Buro Happold	Partial evidence	Bath, United KingdomHQ checked Sep 23, 2026	1,001-5,000	3,336 contacts →
	Partial evidence “We are an international, integrated consultancy of engineers, designers and advisers.” Source: RevenueBase Database · checked Sep 23, 2026
14	Dewberry	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 23, 2026	1,001-5,000	2,795 contacts →
	Indirect evidence “Dewberry is a leading, market-facing firm with a proven history of providing professional services to a wide variety of public- and private-sector clients.” Source: RevenueBase Database · checked Sep 23, 2026
15	NIRAS	Indirect evidence	Allerød, DenmarkHQ checked Sep 23, 2026	1,001-5,000	2,699 contacts →
	Indirect evidence “At NIRAS, we engineer solutions for a shared future.” Source: RevenueBase Database · checked Sep 23, 2026
16	Multiconsult	Indirect evidence	Oslo, NorwayHQ checked Sep 23, 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 23, 2026
17	Brown And Caldwell	Indirect evidence	Walnut Creek, CA, United StatesHQ checked Sep 23, 2026	1,001-5,000	2,473 contacts →
	Indirect evidence “Headquartered in Walnut Creek, Calif, Brown and Caldwell is an employee-owned firm with 2,100+ professionals serving clients locally and globally from 52 locations.” Source: RevenueBase Database · checked Sep 23, 2026
18	TYPSA	Partial evidence	San Sebastian De Los Reyes, SpainHQ checked Sep 23, 2026	1,001-5,000	2,422 contacts →
	Partial evidence “TYPSA is an independent consulting and engineering services group, and a leader in infrastructure, energy, environmental and city solutions.” Source: RevenueBase Database · checked Sep 23, 2026
19	Geosyntec Consultants	Partial evidence	Boca Raton, FL, United StatesHQ checked Sep 23, 2026	1,001-5,000	2,393 contacts →
	Partial evidence “Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural…” Source: RevenueBase Database · checked Sep 23, 2026
20	Providence	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 23, 2026	n/a	2,232 contacts →
	Partial evidence “Providence is an employee-owned engineering and environmental consulting firm.” Source: RevenueBase Database · checked Sep 23, 2026
21	Nova Engevix	Indirect evidence	Barueri, BrazilHQ checked Sep 23, 2026	1,001-5,000	2,223 contacts →
	Indirect evidence “Fundada em 1965 e com mais de 40 anos de experiência, a Engevix é a maior empresa do segmento de engenharia consultiva do Brasil.” Source: RevenueBase Database · checked Sep 23, 2026
22	The Haskell Company	Partial evidence	Jacksonville, FL, United StatesHQ checked Sep 23, 2026	1,001-5,000	2,213 contacts →
	Partial evidence “Haskell delivers over $3 billion annually in Architecture, Engineering, Construction (AEC) and Consulting solutions to assure certainty of outcome for complex capital projects…” Source: RevenueBase Database · checked Sep 23, 2026
23	ECS Group Of Companies	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 23, 2026	1,001-5,000	2,210 contacts →
	Partial evidence “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Source: RevenueBase Database · checked Sep 23, 2026
24	KCI	Partial evidence	Sparks, NC, United StatesHQ checked Sep 23, 2026	1,001-5,000	2,207 contacts →
	Partial evidence “KCI is a 100-percent employee-owned engineering, consulting and construction firm serving clients throughout the United States and beyond.” Source: RevenueBase Database · checked Sep 23, 2026
25	Langan Engineering & Environmental Services	Indirect evidence	Parsippany, NJ, United StatesHQ checked Sep 23, 2026	1,001-5,000	2,177 contacts →
	Indirect evidence “Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Source: RevenueBase Database · checked Sep 23, 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: civil engineering consultancy 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 civil engineering consultancy firms.
Partial evidence: Its own public description names part of civil engineering consultancy firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name civil engineering consultancy 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 50,786 civil engineering consultancy firms worldwide

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Civil engineering consultancy firms worldwide at a glance

As of Sep 23, 2026

40.2%Verified-email coverage

22.3%Mobile-number coverage

20.7Average contacts per company

1-10Median size (employees)

2.1%Largest-city concentration · Sao Paulo

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

27,220

11-50

16,296

51-200

5,159

201-500

1,121

501-1,000

353

1,001-5,000

217

5,001-10,000

10001+

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 civil engineering consultancy 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: 40 countries, largest first: the United States, Brazil, the United Kingdom, Germany, France, Australia, Italy, Canada, Spain, the Netherlands and 30 more. Country and city lists for civil engineering consultancy firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “civil engineering consultancy 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 civil engineering consultancy 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 civil engineering consultancy 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, 422,532 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 23, 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.

Civil engineering consultancy firms by location

218 lists · largest first

Every Civil engineering consultancy 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 civil engineering consultancy 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 civil engineering consultancy firms are there worldwide?

RevenueBase identified 50,786 civil engineering consultancy 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?

AECOM, headquartered in Dallas, tops this list with the largest team on record.

Which country has the most civil engineering consultancy firms?

The United States leads with 13,896 companies, followed by Brazil (7,095) and the United Kingdom (3,922). Every civil engineering consultancy firms list by country and city is linked on this page.

Which city has the most civil engineering consultancy firms?

Sao Paulo leads with 1091 headquartered companies, followed by London (660) and Belo Horizonte (428).

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 422,532 verified decision-maker contacts tracked across these 50,786 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 23, 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.