Company lists · Data refreshed September 2026

Top 25 Rail bridge engineering firms based in the United States

Name: Rail bridge engineering firms 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 921 companies tracked

RevenueBase identified 921 rail bridge engineering firms headquartered in the United States as of September 2026 and tracks 25,135 professional contacts across them, including 12,004 with verified work emails. New York is the largest hub.

This list covers rail bridge engineering 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. 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

921Companies

25,135Contacts tracked

12,004Verified emails

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The 25 largest rail bridge engineering firms based in the United States

Ranked by team size

Top 25 of 921 rail bridge engineering firms 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 rail bridge engineering 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	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
2	AI Engineers, INC	Partial evidence	Middletown, CT, United StatesHQ checked Sep 17, 2026	201-500	491 contacts →
	Partial evidence “Founded in 1991, AI Engineers provides comprehensive Bridge, Transportation, Construction Support, Water/Wastewater, Site/Civil, Building Systems, Design-Build, Survey/Mapping…” Source: RevenueBase Database · checked Sep 17, 2026
3	Railpros	Strong evidence	Irving, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	481 contacts →
	Strong evidence “RailPros was founded in and is exclusively focused on providing rail and transit engineering and construction services.” Source: RevenueBase Database · checked Sep 17, 2026
4	Collins Engineers, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	201-500	432 contacts →
	Indirect evidence “In 1979, Collins Engineers, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
5	Traylor Bros., INC	Indirect evidence	Evansville, IN, United StatesHQ checked Sep 17, 2026	201-500	404 contacts →
	Indirect evidence “William F.” Source: RevenueBase Database · checked Sep 17, 2026
6	Burns Engineering, INC	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 17, 2026	201-500	401 contacts →
	Partial evidence “Burns is a nationally respected provider of specialized engineering services, bringing highly-technical, sought-after engineering expertise to transportation, critical…” Source: RevenueBase Database · checked Sep 17, 2026
7	Hubbard Construction Company	Indirect evidence	Winter Park, FL, United StatesHQ checked Sep 17, 2026	501-1,000	391 contacts →
	Indirect evidence “Hubbard is Florida's largest heavy civil construction company.” Source: RevenueBase Database · checked Sep 17, 2026
8	TRC Worldwide Engineering, INC	Partial evidence	Brentwood, PA, United StatesHQ checked Sep 17, 2026	201-500	316 contacts →
	Partial evidence “Founded in 1989, TRC Worldwide Engineering, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
9	American Bridge Company	Partial evidence	Coraopolis, PA, United StatesHQ checked Sep 17, 2026	501-1,000	281 contacts →
	Partial evidence “American Bridge is a legendary construction company whose projects include a significant proportion of the world’s large bridges, marine installations, and other complex…” Source: RevenueBase Database · checked Sep 17, 2026
10	Kisinger Campo & Associates, Corp. KCA	Partial evidence	Tampa, FL, United StatesHQ checked Sep 17, 2026	201-500	265 contacts →
	Partial evidence “KCA is a multidisciplinary engineering firm with offices throughout the Southeastern United States.” Source: RevenueBase Database · checked Sep 17, 2026
11	Modjeski And Masters	Partial evidence	Mechanicsburg, PA, United StatesHQ checked Sep 17, 2026	201-500	241 contacts →
	Partial evidence “Modjeski and Masters is a nationwide leader in the design, inspection, and rehabilitation of all bridges types, including long-span and movable structures.” Source: RevenueBase Database · checked Sep 17, 2026
12	Infrastructure Engineering INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	201-500	224 contacts →
	Partial evidence “Infrastructure Engineering Inc.(IEI) is a majority African American-owned, multi-disciplinary consulting firm with offices in eight states that delivers design engineering…” Source: RevenueBase Database · checked Sep 17, 2026
13	Kraemer North America	Indirect evidence	Plain, WI, United StatesHQ checked Sep 17, 2026	501-1,000	220 contacts →
	Indirect evidence “A national reputation for quality and safety isn’t built overnight.” Source: RevenueBase Database · checked Sep 17, 2026
14	SPS NEW England, INC	Indirect evidence	Salisbury, MA, United StatesHQ checked Sep 17, 2026	201-500	220 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
15	Butler, Fairman & Seufert, INC	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 17, 2026	51-200	194 contacts →
	Partial evidence “Butler, Fairman & Seufert provides outstanding civil engineering services to governments and businesses through open communication, teamwork, honesty, and professionalism.” Source: RevenueBase Database · checked Sep 17, 2026
16	Veritas Steel LLC	Partial evidence	Lisle, IL, United StatesHQ checked Sep 17, 2026	201-500	174 contacts →
	Partial evidence “Veritas Steel is a leader in the steel bridge fabrication industry with a broad range of experience in the manufacture of highly complex steel structures.” Source: RevenueBase Database · checked Sep 17, 2026
17	United Infrastructure Group	Partial evidence	Great Falls, SC, United StatesHQ checked Sep 17, 2026	501-1,000	170 contacts →
	Partial evidence “Celebrating 100 years in 2024, United Infrastructure Group is one of the leading firms in the Southeast with expertise in engineering, construction, and progressive/alternative…” Source: RevenueBase Database · checked Sep 17, 2026
18	Schaefer	Indirect evidence	Cincinnati, OH, United StatesHQ checked Sep 17, 2026	51-200	158 contacts →
	Indirect evidence “We are open-minded in our approach + thinking, thought leaders with diverse experience.” Source: RevenueBase Database · checked Sep 17, 2026
19	Qk4, INC	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 17, 2026	51-200	152 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
20	Cp&y, INC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	149 contacts →
	Indirect evidence “CP & Y was acquired by STV and is now doing business as STV.” Source: RevenueBase Database · checked Sep 17, 2026
21	Civiltech Engineering, INC	Partial evidence	Itasca, IL, United StatesHQ checked Sep 17, 2026	51-200	144 contacts →
	Partial evidence “Civiltech is a consulting engineering firm that provides a full range of transportation and civil engineering services which include transportation, civil, construction…” Source: RevenueBase Database · checked Sep 17, 2026
22	PND Engineers, INC	Partial evidence	Anchorage, AK, United StatesHQ checked Sep 17, 2026	51-200	139 contacts →
	Partial evidence “PND Engineers, Inc.(PND) is a consulting engineering firm founded in 1979 in Anchorage, Alaska.” Source: RevenueBase Database · checked Sep 17, 2026
23	GLF Construction Corporation	Indirect evidence	Miami, FL, United StatesHQ checked Sep 17, 2026	51-200	139 contacts →
	Indirect evidence “GLF Construction Corporation was incorporated in Miami, Florida, in 1993.” Source: RevenueBase Database · checked Sep 17, 2026
24	Twm, INC	Indirect evidence	Swansea, IL, United StatesHQ checked Sep 17, 2026	51-200	132 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	IH Engineers, P.C	Indirect evidence	Princeton, NJ, United StatesHQ checked Sep 17, 2026	51-200	127 contacts →
	Indirect evidence 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: rail bridge engineering 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 rail bridge engineering firms.
Partial evidence: Its own public description names part of rail bridge engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name rail bridge engineering 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 921 rail bridge engineering firms based in the United States

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Rail bridge engineering firms based in the United States at a glance

As of Sep 17, 2026

47.8%Verified-email coverage

27.3Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

416

11-50

311

51-200

137

201-500

501-1,000

1,001-5,000

5,001-10,000

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 921 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 rail bridge engineering 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “rail bridge engineering 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 rail bridge engineering 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 rail bridge engineering firms, 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, 12,004 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.

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 rail bridge engineering 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 rail bridge engineering firms are there based in the United States?

RevenueBase identified 921 rail bridge engineering firms 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?

HNTB, headquartered in Kansas City, tops this list with the largest team on record.

Which city has the most rail bridge engineering firms?

New York leads with 18 headquartered companies, followed by Houston (16) and Dallas (13).

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 12,004 verified decision-maker contacts tracked across these 921 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.