Structural steel fabricators are an essential part of commercial and industrial building projects. To ensure your construction project is successfully completed, you’ll need to be in contact with the best in the industry. Here are the top steel fabricators in the US, as well as some information and statistics on their revenue, services, and more.
Table of Contents
Updated September 2026. The structural steel ranking below comes from ENR’s 2025 Top 600 Specialty Contractors, the metal fabrication ranking from The Fabricator’s 2026 FAB 40, and the industry and state figures from the Bureau of Labor Statistics and the US Geological Survey. Every figure on this page carries its reference year.
What are structural steel fabricators?
A structural steel fabricator is a company that cuts, drills, welds and bolts steel beams, columns, trusses and connections into the framing members for buildings and bridges, working from approved shop drawings. In the US the trade is classified as NAICS 332312, fabricated structural metal manufacturing, and quality is usually verified through AISC fabricator certification.
A steel fabricator takes metals (mainly steel) and transforms them into a desired product in shape and form. Compared to building materials like aluminum, concrete, and wood, structural steel is stronger, making it a great material option for construction.
Steel fabrication is a fairly complicated process, encompassing a series of steps to effectively build structures. It’s more than just cutting, bending, and assembling pieces together through welding and fitting with bolts—steel fabrication sees processes like preparation through detailed drawings, painting, and delivery. The right material needs to be selected and managed throughout all the steps of fabrication.
Structural steel fabrication is one part of a much larger metal fabrication industry, and the two get mixed up in rankings. A general metal fabricator makes parts and assemblies from sheet metal, plate and tube for equipment makers in agriculture, energy, defense and transportation, and may or may not do structural work. A structural steel fabricator makes the frame of the building, usually holds AISC certification, and often erects the steel with its own crews. This page ranks both, separately. The structural steel list comes from ENR, the metal fabrication list from The Fabricator’s FAB 40, and they are different companies.
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10 largest structural steel fabricators in the US
The largest structural steel fabricator in the US is SteelFab Inc. of Charlotte, North Carolina, with $2,304.8 million in 2024 revenue from steel work, according to ENR’s 2025 Top 600 Specialty Contractors ranking. Schuff Steel of Phoenix is second at $733.6 million and Lexicon of Little Rock third at $674.7 million. ENR’s steel category covers specialty contractors that fabricate and erect structural steel, which is the trade a general contractor buys when it hires a steel sub. The ranking is by each firm’s 2024 revenue from its steel work as reported to ENR, published October 2025, and the ten firms below are the ten largest in that category.
| Rank | Firm | Headquarters | 2024 revenue from steel work ($ million) | Change 2023 to 2024 |
|---|---|---|---|---|
| 1 | SteelFab Inc. | Charlotte, NC | 2,304.8 | +4% |
| 2 | Schuff Steel Co. | Phoenix, AZ | 733.6 | -38% |
| 3 | Lexicon Inc. | Little Rock, AR | 674.7 | -5% |
| 4 | Cooper Steel | Shelbyville, TN | 593.1 | -1% |
| 5 | Sure Steel Inc. | South Weber, UT | 441.2 | +15% |
| 6 | BZI | Cedar City, UT | 395.6 | not previously ranked |
| 7 | Basden Steel Corp. | Burleson, TX | 160.3 | -34% |
| 8 | Red Cedar Steel | Menomonie, WI | 150.0 | +36% |
| 9 | The Williams Group | Merrifield, VA | 139.1 | -4% |
| 10 | Dunn Building Co. | Birmingham, AL | 120.5 | +59% |
Two things to read off the table. First, the gap at the top: SteelFab’s steel revenue is more than three times Schuff’s, and on its own it is about 40% of the top ten’s combined $5.7 billion. Second, the ENR figure is revenue from steel work only, not total company revenue. Lexicon, for example, reported $1,007.0 million in total 2024 revenue and ranks 40th on the overall Top 600, of which $674.7 million was steel. SteelFab and Schuff report all of their revenue as steel.
Every firm on this list is classed by ENR as a specialty contractor. They fabricate in their own shops and erect with their own crews, and they show up on a GC’s job as the steel sub, not as a supplier. That is the practical difference between this list and the metal fabrication list further down: a structural steel fabricator is a trade contractor, with crews, certifications and a schedule to hold.
AISC-certified structural steel fabricators
AISC certification is the quality standard most general contractors and structural engineers specify for structural steel fabrication and erection. As of 2025 there are over 1,200 AISC-certified steel fabrication facilities and over 500 AISC-certified steel erecting companies in the US, according to the American Institute of Steel Construction. Certified shops pass an initial quality management system audit and annual in-person audits to keep the mark. The practical value for a GC sits in the building code: Chapter N of AISC 360 and Section 1704.2.5.1 of the International Building Code waive special inspection requirements when fabrication is performed by an approved fabricator, and most jurisdictions approve AISC-certified fabricators as a matter of course. Certified fabricators perform those inspections with in-house staff, which takes a third-party special inspection line out of the budget and a hold point out of the schedule.
A fabricator’s or erector’s certification status can be checked in AISC’s certified company directory before a bid is awarded. If a structural steel sub is not on it, the special inspection cost moves back onto the project. Source: AISC, Consistent Quality. Lower Risk. (2025).
Largest metal fabrication companies in the US
The ten companies below are the largest contract metal fabrication companies in the US, not structural steel fabricators for buildings. They are ranked by The Fabricator’s FAB 40, which lists the largest US metal fabricating operations by reported prior-year revenue and, by its own definition, covers companies that earn most of their revenue from sheet metal, plate or tube fabrication. Five of the ten list structural steel fabrication as a service line and five list construction as a market, but only three (O’Neal Manufacturing Services, Anchor Fabrication and Ironform) do both. If you are a GC looking for a steel sub, use the ENR list above. If you want the largest metal fabrication companies in the country, this is the list.
Figures are 2025 revenue as reported to the 2026 FAB 40, published June 2026, with the 2021 revenue the same companies reported to the 2022 edition alongside for comparison. FAB 40 notes that most of these companies are privately held and revenue is self-reported; the one exception, MEC, is public and its figure matches its SEC filing. These ten were the top ten on the 2022 FAB 40, which this article was first built from. On the 2026 edition they rank between 1st and 13th, with Cadrex Manufacturing Solutions ($540 million, Romeoville, Illinois), Keel ($262.3 million, Ladson, South Carolina) and NIC Global ($179 million, Woodinville, Washington) now ranked among them.
| 2026 FAB 40 rank | Company | Headquarters | Employees | 2021 revenue | 2025 revenue |
|---|---|---|---|---|---|
| 1 | Mayville Engineering Company, Inc. (MEC) | Milwaukee, WI | 2,465 | $454.8 million | $546.5 million |
| 3 | O’Neal Manufacturing Services (OMS) | Vestavia Hills, AL | 1,041 | $234 million | $296.6 million |
| 4 | BTD Manufacturing | Detroit Lakes, MN | 1,200 | $296 million | $281 million |
| 5 | Robinson Inc. | De Pere, WI | 990 | $150 million | $270 million |
| 7 | Anchor Fabrication | Southlake, TX | 1,300 | $203 million | $245 million |
| 8 | IMS Companies, LLC | Des Plaines, IL | 1,200 | $171.8 million | $234 million |
| 9 | Momentum Manufacturing Group | Georgetown, MA | 700 | $168 million | $220 million |
| 10 | Major Tool & Machine | Indianapolis, IN | 449 | $155 million | $218.77 million |
| 12 | Ironform | Chicago, IL | 700 | $210 million | $175 million |
| 13 | Maysteel Industries, LLC | Allenton, WI | 850 | $140 million | $167 million |
1. Mayville Engineering Company, Inc. (MEC)
Mayville Engineering Company was founded in 1945 and is now headquartered in Milwaukee, Wisconsin. With 27 company locations and 2,465 employees, MEC reported revenue of $546.5 million for 2025 and projects $600 million for 2026, per the 2026 FAB 40. MEC is the one public company on this list (NYSE: MEC), and the $546.5 million matches the revenue in its fiscal 2025 annual report filed with the SEC. The 2022 version of this article carried MEC’s 2021 revenue of $454.8 million and a 2022 projection of $480 to $505 million; actual 2022 revenue came in at $539.4 million.
Their services are plate fabrication, sheet metal fabrication, and tube and pipe fabrication. The markets they serve are construction, energy and power generation, military and defense, recreation (RVs and ATVs), and transportation (rail and trucking).
2. O’Neal Manufacturing Services (OMS)
O’Neal Manufacturing Services was founded in 1921. Their headquarters is in Vestavia Hills, Alabama, and they have 10 company locations with 1,041 employees. They reported revenue of $296.6 million for 2025 and project $319 million for 2026, per the 2026 FAB 40, up from $234 million reported for 2021.
They offer structural steel fabrication, plate fabrication, and sheet metal fabrication. They serve construction, energy and power generation, heavy equipment, transportation (rail and trucking), and utilities and infrastructure markets. O’Neal is one of the three companies on this list that both fabricates structural steel and serves construction.
3. BTD Manufacturing Inc.
BTD Manufacturing was established in 1979 and is headquartered in Detroit Lakes, Minnesota. They have 5 company locations and 1,200 employees. They reported revenue of $281 million for 2025 and project $295 million for 2026, per the 2026 FAB 40. That is below the $296 million they reported for 2021, and well short of the $364 million the 2022 edition projected for 2022.
Their services are sheet metal fabrication, tube and pipe fabrication, and stamping and welding. BTD does not list structural steel fabrication as a service line. The markets they serve are agriculture, construction, energy and power generation, and recreation.
4. Robinson Inc.
Robinson Inc. is a metal fabricator founded in 1905 and based in De Pere, Wisconsin. They have 5 company locations and 990 employees. They reported revenue of $270 million for 2025 and project $370 million for 2026, per the 2026 FAB 40. That is the biggest move on this list: Robinson reported $150 million for 2021 and has nearly doubled its employees since.
Their services are structural steel fabrication, plate fabrication, sheet metal fabrication, and tube and pipe fabrication. The markets they serve are energy and power generation, heavy equipment, pulp and paper, and utilities and infrastructure.
5. Anchor Fabrication
Anchor Fabrication was founded in 1990 and is now headquartered in Southlake, Texas. They have 4 company locations and 1,300 employees. They reported revenue of $245 million for 2025 and project $285 million for 2026, per the 2026 FAB 40, up from $203 million reported for 2021.
Their services are structural steel fabrication, plate fabrication, and sheet metal fabrication. The markets they serve are agriculture, construction, energy and power generation, military and defense, and transportation (rail and trucking). Anchor is one of the three companies on this list that both fabricates structural steel and serves construction.
6. IMS Companies, LLC.
IMS Companies was established in 1998, with their headquarters in Des Plaines, Illinois. The company has 7 locations and 1,200 employees. They reported revenue of $234 million for 2025 and project $247 million for 2026, per the 2026 FAB 40, up from $171.8 million reported for 2021.
Their services center on sheet metal fabrication, and the markets they serve are electronics and precision equipment, energy and power generation, medical and pharmaceutical, transportation (rail and trucking), and utilities and infrastructure.
7. Momentum Manufacturing Group
Momentum Manufacturing Group was founded in 1982 and is headquartered in Georgetown, Massachusetts. The company has 13 locations and 700 employees. They reported revenue of $220 million for 2025 and project $250 million for 2026, per the 2026 FAB 40, up from $168 million reported for 2021.
Their services are sheet metal fabrication and tube and pipe fabrication, alongside the machining, extrusion and finishing work they market separately. The markets they serve are aerospace, electronics and precision equipment, medical and pharmaceutical, military and defense, and utilities and infrastructure. Momentum does not list construction as a market.
8. Major Tool & Machine
Major Tool & Machine was established in 1946 and is based in Indianapolis, Indiana. They have one company location with 449 employees. They reported revenue of $218.77 million for 2025 and project $230 million for 2026, per the 2026 FAB 40, up from $155 million reported for 2021.
They list structural steel fabrication as their service line, serving energy and power generation and military and defense. Major Tool does structural steel work but does not list construction as a market; its structural work is for energy and defense customers.
9. Ironform
Ironform is headquartered in Chicago, Illinois, with 8 company locations and 700 employees. They reported revenue of $175 million for 2025 and project $200 million for 2026, per the 2026 FAB 40. That is down from the $210 million reported for 2021 and the 900-plus employees the company had then; the 2022 edition had projected $240 million for 2022. Ironform still reports to the FAB 40 under its own name, but its website now redirects to Modineer, and the company presents under the Modineer brand online.
Their services are structural steel fabrication, plate fabrication, sheet metal fabrication, and tube and pipe fabrication, serving agriculture, construction, energy and power generation, transportation (rail and trucking), and utilities and infrastructure. Ironform is one of the three companies on this list that both fabricates structural steel and serves construction.
10. Maysteel Industries, LLC.
Maysteel Industries was established in 1936. Their headquarters is in Allenton, Wisconsin, and they have 6 company locations with 850 employees. They reported revenue of $167 million for 2025 and project $200 million for 2026, per the 2026 FAB 40, up from $140 million reported for 2021.
Their services are sheet metal fabrication and tube and pipe fabrication, and the markets they serve are energy and power generation, telecommunications, utilities and infrastructure, and data centers.
Structural steel fabrication industry statistics
The US structural steel fabrication industry (NAICS 332312, fabricated structural metal manufacturing) had 4,062 private establishments employing 104,797 people in the first quarter of 2026, at an average wage of $1,569 a week, about $81,600 a year, according to the BLS Quarterly Census of Employment and Wages. Most shops are small: that is an average of about 26 employees per establishment.
Fabricated structural steel prices have kept climbing. The BLS producer price index for fabricated structural metal manufacturing (series PCU332312332312) stood at 298.8 in August 2026 (preliminary), up 4.5% from August 2025 and 8.8% above August 2022, when this article was first published.
Construction is the largest market for the steel those shops fabricate. US mills produced 82 million tons of raw steel in 2025 with an estimated sales value of about $149 billion, and construction accounted for an estimated 31% of net shipments by market, ahead of steel service centers and distributors (26%) and automotive (15%), per the USGS Mineral Commodity Summaries 2026.
Structural steel fabricators by state
Structural steel fabrication clusters where heavy industry and commercial construction overlap. Texas alone employs more than three times the workers of any other state in the trade, and the top five states account for just over a third (34.4%) of national employment. The table shows the ten largest states by structural steel fabrication employment in the first quarter of 2026.
| Rank | State | Establishments | Employment | Average weekly wage |
|---|---|---|---|---|
| 1 | Texas | 501 | 17,420 | $1,686 |
| 2 | Alabama | 169 | 4,923 | $1,569 |
| 3 | California | 297 | 4,856 | $1,543 |
| 4 | North Carolina | 143 | 4,624 | $1,695 |
| 5 | Ohio | 190 | 4,282 | $1,361 |
| 6 | Pennsylvania | 136 | 4,243 | $1,545 |
| 7 | Florida | 281 | 4,187 | $1,492 |
| 8 | Utah | 90 | 3,533 | $1,580 |
| 9 | Indiana | 128 | 3,476 | $1,637 |
| 10 | New York | 110 | 2,956 | $1,610 |
Steel production and steel fabrication are on different maps. Indiana makes the most raw steel, an estimated 19% of US output in 2025, followed by Ohio (8%), Texas (5%) and Pennsylvania (4%), per USGS. Fabrication follows the construction and industrial work rather than the mills: Texas leads on fabrication employment by a wide margin, three of the top five fabrication states (Alabama, California, North Carolina) are not major steel producers, and Indiana ranks ninth. If you are searching for a structural steel company in a particular state, the employment column is a fair proxy for how deep the local bench of fabricators is.
Steel fabricators FAQ
Who is the largest steel fabricator in the US?
SteelFab Inc., headquartered in Charlotte, North Carolina, is the largest structural steel fabricator in the US by revenue, with $2,304.8 million in 2024 revenue from steel work in ENR’s 2025 Top 600 Specialty Contractors ranking, more than three times second-place Schuff Steel ($733.6 million). Among general metal fabricators, Mayville Engineering Company (MEC) of Milwaukee leads The Fabricator’s 2026 FAB 40 with $546.5 million in 2025 revenue. MEC is a contract metal fabricator serving construction, transportation and defense customers, not a structural steel fabricator for buildings.
What are the top 5 steel fabrication companies in the US?
By ENR’s 2025 ranking of structural steel specialty contractors, the top five steel fabrication companies in the US are SteelFab ($2,304.8 million), Schuff Steel ($733.6 million), Lexicon ($674.7 million), Cooper Steel ($593.1 million) and Sure Steel ($441.2 million), all 2024 revenue from steel work. By The Fabricator’s 2026 FAB 40, the five largest metal fabrication companies are Mayville Engineering Company ($546.5 million), Cadrex Manufacturing Solutions ($540 million), O’Neal Manufacturing Services ($296.6 million), BTD Manufacturing ($281 million) and Robinson Inc. ($270 million), all 2025 revenue. Steel manufacturers, the mills that make raw steel, are a different industry and are not ranked on this page.
What state produces the most steel?
Indiana produces the most raw steel, an estimated 19% of US production in 2025, followed by Ohio (8%), Texas (5%) and Pennsylvania (4%), according to the USGS Mineral Commodity Summaries 2026. Structural steel fabrication is a different map: Texas leads with 17,420 people employed across 501 fabricating establishments in the first quarter of 2026, per BLS QCEW, more than three times any other state, and Indiana ranks ninth for fabrication employment.
What is the difference between a steel fabricator and a manufacturer?
A steel fabricator transforms raw steel into specific shapes and structures needed for construction projects. A steel manufacturer, on the other hand, produces the raw steel material from iron ore or recycled steel.
Bridgit: your solution to workforce management
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