Casco Bay Steel Structures

What Casco Bay Steel Structures does

Casco Bay Steel Structures, Inc. is a privately held, AISC-certified steel bridge fabrication company founded in 1997 and headquartered at One Wallace Ave., South Portland, Maine. The firm designs, fabricates, coats, and transports structural steel for road, rail, and lift bridges, with project sizes ranging from roughly 10 tons to more than 10,000 tons. It serves state Departments of Transportation (MASS DOT, ME DOT, RI DOT, VT AOT, and other New England agencies) as well as Amtrak and large general contractors (Skanska, J.F. White, Walsh Construction, Cianbro, Middlesex, SPS New England, Reed & Reed), winning work through competitive bidding on DOT and design-build projects across New England, New York, New Jersey, and Pennsylvania.

The company operates three fabrication facilities in Saco and South Portland, Maine, totaling approximately 250,000 sq ft of enclosed shop space on 60 acres, with up to 155 tons of overhead lifting capacity. Its technology stack centers on AISC certification for fracture critical and sophisticated paint (enclosed) endorsements, NEPCOAT-approved 3-coat zinc/epoxy/urethane paint systems, and in-house thermal spray metalizing using electric arc spray guns for zinc and zinc/aluminum alloy coatings. Design/build collaboration with DOTs and design teams — including High Performance Steel (HPS) material selection and shop drawing production — is a core capability.

Casco Bay generates revenue through project-based, one-time contracts awarded via competitive bidding, with pricing driven by tonnage, steel type, coatings, and complexity. The firm runs an enterprise field-sales motion with direct outreach to DOT agencies and GCs, supplemented by a project-portfolio website, LinkedIn, and Facebook presence. In-house trucking and shipping — a fleet of tractors with tandem/tri-axle stretch trailers and 4/6 axle steerable dollies, plus barge access within five miles and rail sidings at all three plants — is a distinctive element of the operating model, enabling the firm to deliver oversized bridge components to project sites across the Northeast.

Name

Casco Bay Steel Structures

Legal name

Casco Bay Steel Structures, Inc.

Website

https://cascobaysteel.com

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

101–250 employees

Short description

Casco Bay Steel Structures is an AISC-certified steel bridge fabricator with three Maine plants totaling 250,000 sq ft, serving state DOTs and general contractors across New England and the Northeast via road, rail, and lift bridge fabrication, painting, metalizing, and heavy-haul delivery.

Ownership category

akta.pro rank

Product category

Steel Bridge Fabrication

NAICS

Fabricated Structural Metal Manufacturing (332312), Plate Work and Fabricated Structural Product Manufacturing (33231)

SIC

Fabricated Structural Metal Products (3440)

akta.pro primary industry

Bridge & Infrastructure Steel Components (IMADACAL)

akta.pro secondary industry

Steel Joists, Joist Girders & Decking (IMADACAC)

Keywords

• Steel bridge fabrication
• Structural steel manufacturing
• Bridge design and fabrication
• Heavy haul trucking
• Metalizing and painting

Headquarters

HQ city

South Portland

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Bridge Fabrication Projects: Project-based revenue from fabrication of steel bridges ranging from small 10-ton projects to large-scale projects exceeding 10,000 tons. Work includes road bridges, rail bridges, and lift bridges for state DOTs and general contractors.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Casco Bay Steel Structures is an AISC certified steel bridge fabricator that designs, fabricates, paints/metalizes, and ships structural steel bridges for state Department of Transportation agencies and general contractors. The company operates three Maine facilities totaling 250,000 sq/ft of enclosed fabrication space with 155-ton lifting capacity, handling projects ranging from 10 tons to over 10,000 tons. Service territory covers New England, New York, New Jersey, and Pennsylvania.

Product overview

Casco Bay Steel Structures is a steel bridge fabrication company operating three facilities in Saco and South Portland, Maine, with approximately 250,000 sq/ft of fabrication space on 60 acres. The company offers three core bridge products (Road Bridges, Rail Bridges, and Lift Bridges) supported by three service lines: Design & Fabrication (handling projects from 10 to over 10,000 tons), Painting & Metalizing (AISC-certified sophisticated paint endorsement with NEPCOAT-approved systems and thermal spray coating), and Trucking & Shipping (proprietary fleet for heavy haul with barge and rail delivery options). The product portfolio is unified under a single AISC-certified fabrication operation serving DOTs and contractors throughout New England, New York, NJ, and PA.

Differentiator

Problem solved

Functional benefit

Products and services

• Road Bridges Steel road bridge fabrication services including weathering steel plate girders, curved and haunched girders, and related structural steel components for state DOTs and general contractors throughout New England and New York.
• Rail Bridges Railroad bridge fabrication services including metalized and painted structural steel for Amtrak and state DOT railroad bridge projects.
• Lift Bridges Lift bridge fabrication including bascule bridges and box girder lift spans, with metalizing and painting services.
• Design & Fabrication Steel bridge design/build and fabrication services ranging from 10 tons to over 10,000 tons, utilizing approximately 250,000 square feet of enclosed fabrication space with High Performance Steel (HPS) material options.
• Painting & Metalizing Sophisticated paint endorsement services including NEPCOAT-approved 3-coat zinc/epoxy/urethane paint systems and thermal spray metalizing (zinc or zinc/aluminum alloy) for corrosion protection on bridge girders and components.
• Trucking & Shipping Fleet of tractors and trailers (tandem, tri-axle, 4 and 6 axle steerable dollies) for oversized heavy loads, with trans-load barge access within 5 miles and rail sidings at all three facilities.

Quantifiable outcome

• Projects ranging from 10 tons to over 10,000 tons fabricated successfully
• +1 more outcomes

Named customers13 records

Segments2 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Emerging players

• Cianbro Corporation: Heavy civil construction and steel fabrication firm that partners with Casco Bay on projects like the Sarah Long Lift Bridge but also self-performs bridge steel erection and fabrication in some regions; both collaborator and competitor.

Direct peers

• Hirschfeld Industries: Multi-plant AISC-certified bridge and structural steel fabricator with fracture-critical capability and own in-house painting/coating operations; competes with Casco Bay on large DOT and rail bridge projects nationally.
• Stupp Bridge Company: Bowling Green, KY-based AISC-certified steel bridge fabricator with fracture-critical endorsement, focused on plate girder and tub girder fabrication for DOT and federal projects; comparable scale and capability profile to Casco Bay.
• Industrial Steel Construction: Multi-state steel bridge and heavy structural fabricator with AISC certification and in-house painting; competes for state DOT bridge work in overlapping Mid-Atlantic and Midwest geographies.
• High Steel Structures: Lancaster, PA-based AISC-certified steel bridge fabricator with fracture-critical capabilities serving DOTs across the Northeast and Mid-Atlantic; one of the largest direct competitors to Casco Bay on multi-thousand-ton bridge programs in the same geography.
• Veritas Steel: Palmer, MA-headquartered steel bridge fabricator with AISC fracture-critical credentials and a parallel product mix of plate girders and tub girders, directly competing with Casco Bay for New England state DOT bridge work.

Others

• Skanska USA Civil: Tier-1 general contractor and major buyer of fabricated bridge steel from Casco Bay; relevant peer because it influences bridge procurement specifications and alternative-delivery contract structures affecting the fabricator's win rates.
• Amtrak (Engineering Department): Rail bridge owner-operator and repeat customer of Casco Bay; relevant as a key buyer segment for rail bridge fabrication and as a driver of specialized metallizing and paint specifications in the Northeast.

Broad incumbents

• Nucor Corporation: Largest US steel producer with downstream bridge components and a national mill footprint; serves as both a potential steel supplier to Casco Bay and an adjacent bridge products competitor at the broadest incumbent level.
• Arcosa: Diversified infrastructure products company with a structural steel segment that fabricates bridge and heavy industrial steel components; broader portfolio than Casco Bay but materially overlaps on DOT bridge work.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/cascobaysteel
• LinkedInlinkedin.com/company/casco-bay-steel-structures-inc

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

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 Casco Bay Steel Structures