Company lists · Data refreshed September 2026

Top 25 Structural steel fabricators based in Houston, United States

RevenueBase identified 139 structural steel fabricators headquartered in Houston, United States as of September 2026 and tracks 4,068 professional contacts across them, including 1,203 with verified work emails. Houston is the largest hub.

This list covers structural steel fabricators headquartered in Houston, 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 18, 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 18, 2026 86% judged on-target in blind review
139Companies
4,068Contacts tracked
1,203Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest structural steel fabricators based in Houston, United States

Ranked by team size
Top 25 of 139 structural steel fabricators based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to structural steel fabricators: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceHouston, TX, United StatesHQ checked Sep 18, 2026501-1,000330 contacts →

Partial evidence

“Whirlwind Steel is a manufacturer of pre-engineered metal buildings and metal building components for the agricultural, commercial, governmental, industrial, institutional…”

Source: RevenueBase Database · checked Sep 18, 2026
2Indirect evidenceHouston, TX, United StatesHQ checked Sep 18, 2026501-1,000285 contacts →

Indirect evidence

“Houston-based Spitzer Industries, Inc.”

Source: RevenueBase Database · checked Sep 18, 2026
3Indirect evidenceHouston, TX, United StatesHQ checked Sep 18, 20261,001-5,000265 contacts →

Indirect evidence

“Founded in 1972, Trussway believes that the road to superior construction begins long before the first nail is hammered into place.”

Source: RevenueBase Database · checked Sep 18, 2026
4Partial evidenceHouston, TX, United StatesHQ checked Sep 18, 20261,001-5,000246 contacts →

Partial evidence

“Triple-S Steel is one of the nation’s largest family-owned steel service center organizations, with more than 50 locations across North America and Colombia.”

Source: RevenueBase Database · checked Sep 18, 2026
5Indirect evidenceHouston, TX, United StatesHQ checked Sep 18, 2026501-1,000200 contacts →

Indirect evidence

“MBCI is your trusted partner for metal building projects of any scope or scale.”

Source: RevenueBase Database · checked Sep 18, 2026
6Strong evidenceHouston, TX, United StatesHQ checked Sep 18, 2026501-1,000193 contacts →

Strong evidence

“Gulf Island is a leading fabricator of complex steel structures and modules and provider of specialty services, including project management, hookup, commissioning, repair…”

Source: RevenueBase Database · checked Sep 18, 2026
7Indirect evidenceHouston, TX, United StatesHQ checked Sep 18, 2026201-500191 contacts →

Indirect evidence

“One of the largest service centers in the southwestern United States consisting of an excellent management team and dedicated professionals throughout.”

Source: RevenueBase Database · checked Sep 18, 2026
8Partial evidenceHouston, TX, United StatesHQ checked Sep 18, 2026201-500172 contacts →

Partial evidence

“Rigid Global Buildings (an IAS AC472 accredited company) is an innovative leader in the steel building industry.”

Source: RevenueBase Database · checked Sep 18, 2026
9Partial evidenceHouston, TX, United StatesHQ checked Sep 18, 2026201-50072 contacts →

Partial evidence

“Madden Bolt is a specialty manufacturer that fabricates threaded rebar, anchor bolts, embedded steel, grating, stairs, handrails, platforms, pipe rack steel, galvanizing, & all…”

Source: RevenueBase Database · checked Sep 18, 2026
10Strong evidenceHouston, TX, United StatesHQ checked Sep 18, 202651-20056 contacts →

Strong evidence

“Universal Steel America is the leading North American specialty steel plate fabricator specializing in providing steel plate and component parts to the Wind, Power Gen, Pressure…”

Source: RevenueBase Database · checked Sep 18, 2026
11Indirect evidenceHouston, TX, United StatesHQ checked Sep 18, 202651-20054 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 18, 2026
12Partial evidenceHouston, United StatesHQ checked Sep 18, 202651-20052 contacts →

Partial evidence

“At Steel Supply, we're not just moving metal; we're forging lasting relationships.”

Source: RevenueBase Database · checked Sep 18, 2026
13Strong evidenceHouston, TX, United StatesHQ checked Sep 18, 202651-20051 contacts →

Strong evidence

“Myrex Industries is an AISC-certified steel fabricator in Houston, TX.”

Source: RevenueBase Database · checked Sep 18, 2026
14Strong evidenceHouston, TX, United StatesHQ checked Sep 18, 202651-20050 contacts →

Strong evidence

“Summit Steel is a full service steel fabricator and have been incorporated since 1988.”

Source: RevenueBase Database · checked Sep 18, 2026
15Strong evidenceHouston, TX, United StatesHQ checked Sep 18, 20261,001-5,00049 contacts →

Strong evidence

“Your Single Source Structural Steel Supplier”

Source: RevenueBase Database · checked Sep 18, 2026
16Indirect evidenceHouston, TX, United StatesHQ checked Sep 18, 20261,001-5,00048 contacts →

Indirect evidence

“Metallic Building Systems is a prominent provider of custom-engineered metal buildings.”

Source: RevenueBase Database · checked Sep 18, 2026
17Indirect evidenceHouston, TX, United StatesHQ checked Sep 18, 202651-20045 contacts →

Indirect evidence

“PSI Constructors: Building the Backbone of Industry PSI Constructors specializes in delivering high-quality fabrication, installation, and maintenance solutions for the heavy…”

Source: RevenueBase Database · checked Sep 18, 2026
18Partial evidenceHouston, TX, United StatesHQ checked Sep 18, 202651-20042 contacts →

Partial evidence

“Integrity Structural is a Houston based, structural engineering firm founded in 2002.”

Source: RevenueBase Database · checked Sep 18, 2026
19Indirect evidenceHouston, TX, United StatesHQ checked Sep 18, 202651-20038 contacts →

Indirect evidence

“Welcome to Nexont!”

Source: RevenueBase Database · checked Sep 18, 2026
20Strong evidenceHouston, TX, United StatesHQ checked Sep 18, 202611-5031 contacts →

Strong evidence

“Since 1984, SISCORP Structures has empowered owners and operators of critical infrastructure by designing, supplying, and erecting custom steel buildings.”

Source: RevenueBase Database · checked Sep 18, 2026
21Indirect evidenceHouston, TX, United StatesHQ checked Sep 18, 202651-20027 contacts →

Indirect evidence

“PRODUCT HANDLING DESIGN, INC.”

Source: RevenueBase Database · checked Sep 18, 2026
22Partial evidenceHouston, TX, United StatesHQ checked Sep 18, 202611-5027 contacts →

Partial evidence

“At SteelTech, we’re more than a rebar fabricator-we’re your trusted partner in building success.”

Source: RevenueBase Database · checked Sep 18, 2026
23Indirect evidenceHouston, TX, United StatesHQ checked Sep 18, 202651-20025 contacts →

Indirect evidence

“With the most basic sheet metal equipment, MR Sheet Metal began in 1989 in a small square foot building.”

Source: RevenueBase Database · checked Sep 18, 2026
24Strong evidenceHouston, TX, United StatesHQ checked Sep 18, 202651-20022 contacts →

Strong evidence

“Cyclone Steel offers an extensive selection of fully traceable steel plate in industry‐standard oilfield, pressure vessel and structural grades.”

Source: RevenueBase Database · checked Sep 18, 2026
25Indirect evidenceHouston, TX, United StatesHQ checked Sep 18, 202611-5021 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 18, 2026

Showing 25 of 139 structural steel fabricators based in Houston, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,203 reachable decision-makers.

Free signup · no credit card

View the full list →

Structural steel fabricators based in Houston, United States at a glance

As of Sep 18, 2026
29.6%Verified-email coverage
29.3Average contacts per company
11-50Median size (employees)
100.0%Largest-city concentration · Houston
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
44
11-50
47
51-200
30
201-500
8
501-1,000
5
1,001-5,000
4
5,001-10,000
1

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 139 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 structural steel fabricators, 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 Houston, United States whose own description of what they do matches “structural steel fabricators”. 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 structural steel fabricators), 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 structural steel fabricators, and records with no verified work email. Companies headquartered outside Houston 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, 1,203 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 18, 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 structural steel fabricators, 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 structural steel fabricators are there based in Houston, United States?

RevenueBase identified 139 structural steel fabricators headquartered in Houston, 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?

Whirlwind Steel Buildings And Components, headquartered in Houston, tops this list with the largest team on record.

Which city has the most structural steel fabricators?

Houston leads with 139 headquartered companies, followed by New York (60) and Phoenix (54).

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 1,203 verified decision-maker contacts tracked across these 139 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 18, 2026.

Ready to reach these companies? Verified emails and direct dials for all 139 structural steel fabricators based in Houston, United States. Start with a free account, no credit card.

Download this list →

Related lists

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.