Company lists · Data refreshed September 2026

Top 25 Railway consulting engineers based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 2,531 companies tracked

RevenueBase identified 2,531 railway consulting engineers headquartered in the United States as of September 2026 and tracks 195,421 professional contacts across them, including 84,400 with verified work emails. Houston is the largest hub.

This list covers railway consulting engineers 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 17, 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 17, 2026 86% judged on-target in blind review

2,531Companies

195,421Contacts tracked

84,400Verified emails

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The 25 largest railway consulting engineers based in the United States

Ranked by team size

Top 25 of 2,531 railway consulting engineers based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to railway consulting engineers: 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 17, 2026	10001+	63,914 contacts →
	Indirect evidence “AECOM is the global infrastructure leader, committed to delivering a better world.” Source: RevenueBase Database · checked Sep 17, 2026
2	HNTB	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 17, 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 17, 2026
3	Michael Baker International	Strong evidence	Pittsburgh, PA, United StatesHQ checked Sep 17, 2026	5,001-10,000	4,362 contacts →
	Strong 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 17, 2026
4	Power Engineers	Partial evidence	Hailey, ID, United StatesHQ checked Sep 17, 2026	1,001-5,000	4,013 contacts →
	Partial evidence “POWER Engineers is now part of WSP.” Source: RevenueBase Database · checked Sep 17, 2026
5	TYLIN	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,067 contacts →
	Partial evidence “As a global engineering firm, we design infrastructure solutions that connect and elevate communities.” Source: RevenueBase Database · checked Sep 17, 2026
6	ECS Group Of Companies	Strong evidence	Chantilly, VA, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,210 contacts →
	Strong evidence “ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.” Source: RevenueBase Database · checked Sep 17, 2026
7	Olsson	Partial evidence	Lincoln, NE, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,108 contacts →
	Partial evidence “Olsson is an engineering firm made up of people who craft expert solutions and designs that improve communities.” Source: RevenueBase Database · checked Sep 17, 2026
8	IMEG	Partial evidence	Rock Island, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,985 contacts →
	Partial evidence “Leaders in Engineering and Innovation.” Source: RevenueBase Database · checked Sep 17, 2026
9	LJA	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,932 contacts →
	Indirect evidence “Employee-Owned.” Source: RevenueBase Database · checked Sep 17, 2026
10	Bowman Consulting	Partial evidence	Reston, VA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,666 contacts →
	Partial evidence “Headquartered in Reston, Virginia, Bowman is a national engineering services firm delivering infrastructure solutions to customers who own, develop and maintain the built…” Source: RevenueBase Database · checked Sep 17, 2026
11	CHA Consulting, INC	Strong evidence	Albany, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,639 contacts →
	Strong evidence “CHA Consulting, Inc.(CHA) is an innovative, full-service engineering, design, consulting, and program/construction management firm providing a wide range of technology-enhanced…” Source: RevenueBase Database · checked Sep 17, 2026
12	Kpff Consulting Engineers	Partial evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,487 contacts →
	Partial evidence “KPFF is a multi-office, multi-discipline engineering firm.” Source: RevenueBase Database · checked Sep 17, 2026
13	Davey Resource Group, INC	Partial evidence	Kent, OH, United StatesHQ checked Sep 17, 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 17, 2026
14	Ulteig	Partial evidence	Fargo, ND, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,362 contacts →
	Partial evidence “Ulteig delivers comprehensive design engineering, program management and technical and field services that strengthen infrastructure vital to everyday life.” Source: RevenueBase Database · checked Sep 17, 2026
15	GPI Greenman-Pedersen, INC	Strong evidence	Melville, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,354 contacts →
	Strong 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 17, 2026
16	Atwell, LLC	Strong evidence	Southfield, MI, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,290 contacts →
	Strong 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 17, 2026
17	Halcrow	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	10001+	1,256 contacts →
	Indirect evidence “Halcrow is now Jacobs.” Source: RevenueBase Database · checked Sep 17, 2026
18	Volkert, INC	Indirect evidence	Mobile, AL, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,199 contacts →
	Indirect evidence “Volkert’s history began in 1925 when it was founded in New Orleans as Doullut & Erwin to provide waterfront and heavy construction services, as well as airport design services…” Source: RevenueBase Database · checked Sep 17, 2026
19	WSB	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,053 contacts →
	Indirect evidence “Forge ahead.” Source: RevenueBase Database · checked Sep 17, 2026
20	Pond & Company	Strong evidence	Peachtree Corners, GA, United StatesHQ checked Sep 17, 2026	501-1,000	985 contacts →
	Strong evidence “Pond, an ENERCON company, is a full-service consulting firm that has provided integrated engineering, architecture, planning, and construction management solutions to public and…” Source: RevenueBase Database · checked Sep 17, 2026
21	GAI Consultants, INC	Strong evidence	Homestead, PA, United StatesHQ checked Sep 17, 2026	501-1,000	964 contacts →
	Strong evidence “Transforming ideas into reality® since 1958, GAI Consultants is an engineering, planning, and environmental consulting firm that provides customized solutions and local expertise…” Source: RevenueBase Database · checked Sep 17, 2026
22	Coffman Engineers	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	501-1,000	859 contacts →
	Indirect evidence “The right team is more than an advantage.” Source: RevenueBase Database · checked Sep 17, 2026
23	Hatch Mott Macdonald	Indirect evidence	Iselin, NJ, United StatesHQ checked Sep 17, 2026	1,001-5,000	762 contacts →
	Indirect evidence “This page is now closed.” Source: RevenueBase Database · checked Sep 17, 2026
24	Wade Trim	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 17, 2026	501-1,000	758 contacts →
	Indirect evidence “At Wade Trim, we are committed to maximizing the value of your infrastructure investment.” Source: RevenueBase Database · checked Sep 17, 2026
25	Railworks Corporation	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	721 contacts →
	Partial evidence “RailWorks builds and maintains rail transportation infrastructure that keeps people and goods moving across the United States and Canada.” Source: RevenueBase Database · checked Sep 17, 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: railway consulting engineers. 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 railway consulting engineers.
Partial evidence: Its own public description names part of railway consulting engineers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name railway consulting engineers. 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 2,531 railway consulting engineers based in the United States

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Railway consulting engineers based in the United States at a glance

As of Sep 17, 2026

43.2%Verified-email coverage

77.2Average contacts per company

11-50Median size (employees)

3.6%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

1,019

11-50

890

51-200

420

201-500

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 2,531 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 railway consulting engineers, 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 “railway consulting engineers”. 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 railway consulting engineers), 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 railway consulting engineers, 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, 84,400 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 17, 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.

Railway consulting engineers 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 railway consulting engineers, 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 railway consulting engineers are there based in the United States?

RevenueBase identified 2,531 railway consulting engineers 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?

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

Which city has the most railway consulting engineers?

Houston leads with 91 headquartered companies, followed by New York (63) and Chicago (47).

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 84,400 verified decision-maker contacts tracked across these 2,531 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 17, 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.