Company lists · Data verified August 2026

Top 25 Engineering consulting firms based in the United States

Name: Engineering consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 18,075 companies tracked

There are 18,075 engineering consulting firms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 790,435 professional contacts across them, including 345,282 with verified work emails and 321,304 with mobile numbers. Houston is the largest hub.

This list covers engineering 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. Data current as of August 28, 2026.

18,075Companies

790,435Contacts tracked

345,282Verified emails

321,304Mobile numbers

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The 25 largest engineering consulting firms based in the United States

Ranked by team size

Top 25 of 18,075 engineering consulting firms based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Jacobs	Dallas, TX	10001+	46,472	21,437
2	Fluor Corporation	Irving, TX	10001+	33,095	6,983
3	Bechtel Corporation	Reston, VA	10001+	24,784	3,568
4	HDR	Fort Worth, TX	10001+	15,257	10,062
5	Tetra Tech	Pasadena, CA	10001+	13,066	5,477
6	Burns & Mcdonnell	Madison, WI	10001+	12,478	3,637
7	Black & Veatch	Overland Park, KS	10001+	10,807	3,859
8	WSP In The U.S	New York, NY	10001+	9,318	5,535
9	URS Corporation, An Aecom Company	San Francisco, CA	10001+	7,722	645
10	Sargent & Lundy	Midland, TX	1,001-5,000	4,145	1,118
11	STV	Morrisville, NC	1,001-5,000	3,564	2,109
12	Kleinfelder	San Diego, CA	1,001-5,000	2,365	1,411
13	KCI	North Charleston, SC	1,001-5,000	2,228	1,110
14	DRA Global	Johannesburg	1,001-5,000	2,157	1,331
15	Langan Engineering & Environmental Services	El Segundo, CA	1,001-5,000	2,136	1,662
16	Olsson	Phoenix, AZ	1,001-5,000	2,130	1,321
17	LJA	Sarasota, FL	1,001-5,000	2,073	1,578
18	Enercon Services, INC	Palm Beach Gardens, FL	1,001-5,000	1,840	1,171
19	Johnson, Mirmiran & Thompson	Dover, DE	1,001-5,000	1,677	1,023
20	Jensen Hughes	Greenville, SC	1,001-5,000	1,642	1,211
21	Westwood Professional Services	Lake Charles, LA	1,001-5,000	1,631	1,058
22	UES	Houston, TX	1,001-5,000	1,571	879
23	CRB	Plymouth Meeting, PA	1,001-5,000	1,548	203
24	Labella Associates	New York	1,001-5,000	1,465	1,009
25	Freese And Nichols	Greensboro, NC	1,001-5,000	1,461	1,032

Showing 25 of 18,075 engineering consulting firms based in the United States

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Engineering consulting firms based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

HoustonLargest hub · 531 HQs

321,304Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

8,474

11-50

6,393

51-200

2,245

201-500

506

501-1,000

168

1,001-5,000

174

10001+

Engineering consulting firms by metro

Metro	Companies
Engineering consulting firms in Houston	531
Engineering consulting firms in New York	397
Engineering consulting firms in Austin	206
Engineering consulting firms in Miami	180
Engineering consulting firms in Dallas	178
Engineering consulting firms in Chicago	177
Engineering consulting firms in San Diego	172
Engineering consulting firms in Tampa	170

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “engineering consulting firms”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many engineering consulting firms are there based in the United States?

There are 18,075 engineering consulting firms headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most engineering consulting firms?

Houston leads with 531 headquartered companies, followed by New York (397) and Austin (206).

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 345,282 verified decision-maker contacts tracked across these 18,075 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.