Allied Steel Co.

What Allied Steel Co. does

Allied Steel Co., Inc. is a Southern California-based structural steel and miscellaneous metals fabricator and erector, operating from a 60,000 sq ft facility on 5.5 acres in Riverside, CA. Founded in 1944 and incorporated in California in 1956, the family-owned company (Chapman family, 100% private ownership) operates as a licensed subcontractor under California C51 (Structural Steel) and C23 (Ornamental Iron) licenses, with an additional City of Los Angeles Type I Fabricator certification and AISC fabricator certification for conventional and complex steel building structures. Its core services cover structural steel fabrication and erection (including multi-story structures) and miscellaneous metals such as handrails, stairs, grating, and ornamental iron, with a documented specialization in water and wastewater treatment infrastructure — water treatment plants, water reclamation plants, pumping plants, and sewage treatment facilities — serving public agencies including the Metropolitan Water District of Southern California, Inland Empire Utilities Agency, U.S. Army Corps of Engineers, and Eastern Municipal Water District, alongside selected enterprise clients.

The company's production capability rests on conventional heavy-fabrication equipment — sawing, drilling, coping and cambering beam line, plate burning table, a 300-ton press brake, a 13-foot plate shear, and two plasma pipe processors — supported by a union field and shop ironworker workforce sourced exclusively through Ironworkers Local Unions 509 and 433, with apprenticeship sponsorship. It holds no software platform, no digital product surface, and operates no app or API; all capability is physical-fabrication-led.

Allied Steel generates revenue through project-based, quote-driven subcontracting with general contractors on public and private construction projects in Southern California, with individual project values in the $10-15 million range. The go-to-market is sales-led and relationship-driven, leveraging long-standing memberships in the Steel Fabricators Association (SFA) and AISC, a 50+ year reputation, and a project portfolio website rather than digital marketing. With approximately 14 named office/management team members (augmented by union crews not counted in that figure), no external investors, no parent company, and no subsidiaries, the business is a stable, regionally-focused, mid-market specialty subcontractor whose trajectory is tightly linked to Southern California public infrastructure capital cycles.

Name

Allied Steel Co.

Legal name

Allied Steel Co., Inc.

Website

https://alliedsteelco.com

Company type

Private

Founded year

1944

Operating status

Operating

Headcount range

11–50 employees

Short description

Allied Steel Co., Inc. is a family-owned Southern California structural steel and miscellaneous metals fabricator and erector, specializing in water and wastewater treatment infrastructure for public agencies and general contractors across the region.

Ownership category

akta.pro rank

Product category

Structural Steel Fabrication

NAICS

Fabricated Structural Metal Manufacturing (332312), Structural Steel and Precast Concrete Contractors (23812)

SIC

Fabricated Structural Metal Products (3440)

akta.pro primary industry

Steel Plate, Sections & Welded Assemblies (IMADACAD)

akta.pro secondary industry

Bridge & Infrastructure Steel Components (IMADACAL)

Keywords

• Structural steel fabrication
• Miscellaneous metals fabrication
• Steel erection services
• AISC certified fabrication
• Water treatment plant steel

Headquarters

HQ city

Riverside

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Infrastructure

Revenue model

1. Structural Steel Fabrication and Erection: Project-based fabrication and installation of structural steel and miscellaneous metals for public and private sector projects. Projects have ranged in value from $10-15 million.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Allied Steel Co., Inc. is a licensed structural steel subcontractor that fabricates and erects structural steel and miscellaneous metals for public and private construction projects in Southern California. Services span custom shop fabrication (beam line processing, plate burning, press braking, shearing, plasma pipe cutting) and field installation by union ironworkers, with particular specialization in water treatment, water reclamation, pumping, and sewage treatment plant infrastructure such as handrails, stairs, grating, and multi-story structural frameworks.

Product overview

Allied Steel Co. is a steel fabrication and erection company offering a unified portfolio of structural steel and miscellaneous metals products and services. The company operates a 60,000 Sq.Ft. fabrication facility on 5.5 acres in Riverside, California, providing custom fabrication (beam line processing, plate burning, press braking, shearing, plasma pipe processing) and field installation services. Their primary specializations include structural steel multi-story structures, handrails, stairs, and grating for water treatment, water reclamation, pumping, and sewage treatment plants throughout Southern California.

Differentiator

Problem solved

Functional benefit

Products and services

• Structural Steel Fabrication and Installation Custom fabrication and erection of structural steel for industrial and municipal construction projects, including multi-story structures, delivered as a subcontracted package to general contractors and public agencies in Southern California.
• Miscellaneous Metals Products Fabrication and installation of miscellaneous metals including handrails, stairs, grating, and ornamental iron work, performed for general contractors and public infrastructure projects in Southern California.
• Water Treatment Plant Steel Structures Specialized structural steel and miscellaneous metal fabrication and installation for water treatment plants, water reclamation plants, pumping plants, and sewage treatment facilities.

Named customers7 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Three partnerships are on record, tiered core.

• Steel Fabricators Association (SFA)coreOthersLong-time member of the Steel Fabricators Association, providing industry representation and professional development opportunities.
• American Institute of Steel Construction (AISC)coreStrategic or Co-development PartnerLong-time member of AISC. The fabrication facility has earned AISC fabricator certification for conventional and complex steel building structures, requiring yearly inspection and rigorous evaluation.
• Ironworkers Local Unions 509 and 433coreStrategic or Co-development PartnerAll shop and field ironworkers are employed through Local Unions 509 and 433. Company also participates in sponsorship and training of apprentices for the Ironworkers Apprenticeship Program.

Scale indicators4 records

Recent moves7 records

Expansion highlights3 records

Direct peers

• Vulcan Steel Structures: Vulcan Steel Structures is a steel building fabricator/erector serving commercial and industrial customers with comparable structural and miscellaneous metals capabilities and multi-state project execution.
• SME Steel Contractors: SME Steel is a structural steel fabrication and erector serving commercial, industrial, and infrastructure projects nationwide with comparable AISC-certified operations, multi-trade scope, and union-trained ironworker crews — directly comparable to Allied Steel.
• W&W Steel / AFCO Steel: W&W Steel is a direct structural steel fabrication and erection peer with comparable AISC-grade operations and diversification across commercial, institutional, and infrastructure projects in the western U.S.
• Atlas Steel Erectors: Atlas Steel Erectors is a regional structural steel and miscellaneous metals erector in the western U.S., with comparable union-trained crews and project types (commercial, industrial, public sector) overlapping Allied's footprint.

Broad incumbents

• Nucor Corporation: Nucor is the largest U.S. steel producer and operates downstream steel fabrication subsidiaries for construction and infrastructure customers; it overlaps Allied's end markets as a vertically integrated supply-side incumbent rather than a direct regional competitor.
• Schuff Steel (DPG/DPR): Schuff Steel, now part of DPR/DPG, is a large national structural steel erector and miscellaneous metals fabricator with similar scope (structural and miscellaneous metals, water/industrial projects) but materially greater scale and geographic reach than Allied.
• CMC (Commercial Metals Company): CMC is a diversified steel manufacturer with significant structural and rebar fabrication infrastructure serving construction markets nationwide, providing a much larger incumbent comparison for Allied's downstream fabrication and erection scope.

Regional players

• Hill & Smith Holdings: Hill & Smith is an international infrastructure group with steel fabrication activities for transportation and water infrastructure markets; it overlaps Allied's water/municipal customer base through subsidiary operations but primarily serves U.K./European geography.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/allied-steel-co.-inc.

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Allied Steel Co.