Hamilton Construction Co
Hamilton Construction Co. is an employee-owned heavy civil contractor founded in 1939 that self-performs bridge, highway, dam, and rail infrastructure projects for state DOTs, federal agencies, and Class I railroads across the Western United States and Alaska.
- Company typePrivate
- Founded1939
- HeadquartersSpringfield, United States
- Headcount251–500
- GTM typeB2B
- OfferingServices
What Hamilton Construction Co does
Hamilton Construction Co. is an employee-owned heavy civil contractor founded in 1939 by Harry Hamilton in Springfield, Oregon. The company specializes in bridges, highway interchanges, bypasses, dam and stream rehabilitation, concrete structural components, and railroad trestle repair and replacement. Hamilton self-performs a significant portion of its awarded work across all five operating divisions (Oregon, Washington, Alaska, Greater Western US, and Rail), distinguishing itself from industry peers who emphasize contract management over direct execution. The company's core technical capabilities include pile driving, steel fabrication, accelerated bridge construction (ABC), and an internally developed bubble-curtain noise attenuation device designed to protect aquatic species during in-water pile driving.
Hamilton Construction Co firmographics
Firmographics- Name
- Hamilton Construction Co
- Legal name
- Hamilton Construction Co.
- Website
- https://hamilton1939.com
- Company type
- Private
- Founded year
- 1939
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- Hamilton Construction Co. is an employee-owned heavy civil contractor founded in 1939 that self-performs bridge, highway, dam, and rail infrastructure projects for state DOTs, federal agencies, and Class I railroads across the Western United States and Alaska.
- Ownership category
- akta.pro rank
Hamilton Construction Co industry classification
Industry- Product category
- Heavy Civil Construction Services
- NAICS
- Structural Steel and Precast Concrete Contractors (238120)
- SIC
- Heavy Construction Other Than Bldg Const - Contractors (1600)
- akta.pro primary industry
- Bridge & Viaduct Construction (IMAFAEAB)
- akta.pro secondary industries
- Self-Performing General Contractors (IMAFAAAI), Bridges, Viaducts & Elevated Guideway Construction (IMAFAFAF)
Keywords
Where Hamilton Construction Co is headquartered
LocationHeadquarters
- HQ city
- Springfield
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
Hamilton Construction Co business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales
Revenue model
- Heavy Civil Construction Project Contracts: Hamilton generates revenue through competitively bid construction contracts with public-sector owners (state DOTs, cities, counties, federal agencies) and private railroad owners. Revenue is project-based and one-time per contract. The company self-performs a significant portion of awarded work, acting as a general contractor with in-house crews and equipment.
Go-to-market motion1 record
Distribution channels5 records
Marketing channels4 records
Hamilton Construction Co product offering
Product offeringCore offering
Hamilton Construction Co is a heavy civil general contractor that self-performs construction of bridges, highway interchanges, bypasses, underpasses, railroad trestles, dams, and concrete structural components. The company delivers projects under multiple contract methods (Design-Build, Progressive Design-Build, Design-Bid-Build, CM/GC, GC/CM) and operates five regional divisions across the Western United States and Alaska. Services are organized into pre-construction (planning, scheduling, value engineering, risk management) and construction execution phases.
Product overview
Hamilton Construction Co is a heavy civil construction services company, not a software product company. They offer construction services through five regional divisions (Oregon, Washington, Alaska, Greater Western US, and Rail) including pre-construction services (planning, scheduling, value engineering, risk management), construction services (bridges, highway interchanges, dam rehabilitation, railroad trestle repair), and multiple contract delivery methods (Design-Build, Progressive Design-Build, Design-Bid-Build, CM/GC, GC/CM). The company self-performs much of their awarded work using their bonding capacity, equipment inventory, and material resources.
Differentiator
Problem solved
Functional benefit
Products and services
- Heavy Civil Construction Services Self-performed construction of bridges, highway interchanges, bypasses, underpasses, railroad trestles, dams, concrete structural components, and bicycle/pedestrian access infrastructure for public-sector owners and railroad companies.
- Pre-Construction Services Planning, scheduling, project engineering and constructability review, value engineering, permit coordination, stakeholder coordination, risk management, and cost-benefit/value analysis services delivered to public and private infrastructure owners.
- Rail Division Railroad Bridge Services Specialized railroad bridge replacement, trestle repair, and rail infrastructure construction services for Class I and regional railroads, performed around active mainline traffic within tight change-out windows.
- Accelerated Bridge Construction (ABC) Accelerated Bridge Construction techniques including slide-in-bridge and float-in bridge methods that minimize traffic disruption, exemplified by the BNSF 24.8 Fallbridge slide-in completed within a 30-hour period.
Quantifiable outcome
- Delivered $17M+ in DBE subcontracts on the I-5 Willamette River Bridge project, exceeding aspirational goals
- +6 more outcomes
Companies that use Hamilton Construction Co
Customer profileNamed customers12 records
Segments4 records
Ideal customer profiles4 records
Hamilton Construction Co technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
Hamilton Construction Co partnerships and signals
Strategic signalPartnerships
14 partnerships are on record, tiered core, significant and minor.
- FHWA (Federal Highway Administration)coreHamilton collaborates with FHWA on major infrastructure projects including the Polychrome Area Improvements in Denali National Park (CM/GC delivery) and Glenn Highway Chickaloon River Bridge Replacement. The partnership involves integrated team development, co-located project delivery, and value-based early work packages to accelerate project timelines.
- Western Federal LandscoreWestern Federal Lands (part of FHWA) partners with Hamilton on transportation projects on federal lands including the Lewis River Bridge Replacement and Pelican Bridge in Yellowstone National Park. Collaborative CM/GC delivery methods enable pre-construction services and integrated project delivery.
- Oregon Bridge Delivery Partners (OBDP)coreHamilton partnered with OBDP on the I-5 Weaver Bundle design-build project, receiving recognition for environmental excellence. The partnership involved collaborative problem-solving with regulators and environmental performance standard compliance.
- Design Lead Partner (Joint Venture)coreHamilton operated through a joint venture with a design lead partner for the Murphy Corridor Improvements progressive design-build project with the City of Bend. The JV delivered the project 18 months ahead of schedule and $1.3M under budget.
- National Association of Minority Contractors of Oregon (NAMC-Oregon)significantHamilton partners with NAMC-Oregon to advance workforce diversity and minority contracting on infrastructure projects. The company received NAMC-Oregon Contractor of the Year Award for outstanding leadership, mentorship, community involvement, and promotion of industry diversity.
- Oregon TradeswomenminorHamilton partners with Oregon Tradeswomen as part of its workforce diversity strategy, recruiting women into construction trades and supporting apprenticeship programs.
- LatinoBuiltminorHamilton partners with LatinoBuilt to support diversity in the construction industry and promote contracting opportunities for Latino-owned businesses on its projects.
- Constructing HopeminorHamilton partners with Constructing Hope, a no-cost 10-week pre-apprenticeship construction training program, to recruit and develop diverse talent for the construction workforce.
- Portland Business Development Group (PBDG)minorHamilton partners with PBDG as part of its diversity and inclusion initiatives in workforce development and project contracting.
- Oregon ApprenticeshipminorHamilton participates in Oregon state apprenticeship programs and works with the NW College of Construction and BOLI-approved apprenticeship programs to train the next generation of skilled tradespeople.
- NW College of ConstructionminorHamilton partners with the NW College of Construction for paid on-the-job training with classroom instruction, offering apprenticeship programs for carpenters in Oregon and Washington divisions.
- BNSF RailwaycoreBNSF Railway is a major client of Hamilton's Rail Division, commissioning bridge replacement and construction projects including the Fallbridge Subdivision Bridge 58.8 and 47.0 replacements, and the Seattle Subdivision Bridge replacement in Vader, Washington. Hamilton developed specialized railroad safety systems compliant with FRA regulations.
- Union Pacific Railroad (UPRR)coreUnion Pacific Railroad commissions Hamilton for bridge replacement projects including the Brooklyn Subdivision 662.98 and 755.82 replacements. Hamilton's Rail Division works around active UP mainline traffic with minimal disruption to rail operations.
- Associated General Contractors (AGC) of AmericasignificantHamilton has been a member of AGC since founder Harry Hamilton's membership in the 1940s. The company participates in AGC chapters at multiple state levels (Oregon-Columbia Chapter) and has won numerous AGC awards. AGC membership provides industry advocacy, networking, and workforce development resources.
Scale indicators5 records
Recent moves7 records
Expansion highlights5 records
Hamilton Construction Co competitors and assessment
Company assessmentDirect peers
- Manson Construction: Seattle-based heavy marine and civil contractor active in Pacific Northwest infrastructure including bridges, docks, and waterfront structures. Comparable in regional Western US footprint and DOT client base.
- Flatiron Construction: Heavy civil contractor specializing in bridges, highways, and rail infrastructure across the Western US and Canada. Comparable in bridge self-perform capability and alternative delivery expertise (design-build, CM/GC).
- Ames Construction: Heavy civil contractor with significant bridge, highway, rail, and dam work across the Western and Midwestern US. Comparable in self-perform heavy civil model, alternative delivery expertise, and DOT/Class I railroad client mix.
- Slayden Constructors: Pacific Northwest heavy civil contractor focused on bridges, highways, water, and environmental infrastructure. Comparable mid-sized regional peer serving Oregon, Washington, and Idaho state DOTs.
- Mowat Construction: Woodinville, Washington-based heavy civil contractor with bridge, highway, and structural concrete work across the Pacific Northwest. Comparable in size, regional scope, and DOT client relationships.
- Stacy Witbeck: Specialty contractor focused on rail, transit, and heavy civil infrastructure including bridge replacement for Class I railroads. Comparable in tight-window rail bridge execution and Class I client relationships.
- Traylor Bros: Specialty heavy civil and bridge contractor with deep expertise in complex bridge construction including marine, cable-stayed, and accelerated bridge construction. Comparable in bridge technical sophistication and self-perform craft workforce.
- Herzog Contracting: Rail services and construction contractor serving Class I and passenger railroads with bridge, track, and transit infrastructure work. Directly comparable peer for Hamilton's Rail Division given FRA-compliant operations and Class I railroad client base.
- Granite Construction: California-headquartered ENR Top heavy civil contractor with bridge, highway, and rail infrastructure work across the Western US. Comparable in self-perform bridge capability and DOT client mix, though larger and publicly traded.
Broad incumbents
- Kiewit Infrastructure: One of North America's largest heavy civil contractors with extensive bridge, highway, and rail work across all US regions. Comparable capabilities but at meaningfully greater scale and geographic reach than Hamilton.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Hamilton Construction Co social profiles
Digital presenceHamilton Construction Co financial estimates
Financial estimateRevenue estimate
Valuation estimate
Hamilton Construction Co leadership team
Management profileNumber of profiles
Hamilton Construction Co subsidiaries and ownership
Company hierarchySubsidiaries5 records
Hamilton Construction Co funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Hamilton Construction Co M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Hamilton Construction Co
What does Hamilton Construction Co do?
Hamilton Construction Co is a heavy civil general contractor that self-performs construction of bridges, highway interchanges, bypasses, underpasses, railroad trestles, dams, and concrete structural components. The company delivers projects under multiple contract methods (Design-Build, Progressive Design-Build, Design-Bid-Build, CM/GC, GC/CM) and operates five regional divisions across the Western United States and Alaska. Services are organized into pre-construction (planning, scheduling, value engineering, risk management) and construction execution phases.
Is Hamilton Construction Co a public or private company?
Hamilton Construction Co is a private company. It is classified as management employee owned and is currently operating.
When was Hamilton Construction Co founded?
Hamilton Construction Co was founded in 1939. It employs 251 to 500 people.
Where is Hamilton Construction Co based?
Hamilton Construction Co is headquartered in Springfield, United States, in the North America region.
How does Hamilton Construction Co make money?
One revenue line is on record: heavy Civil Construction Project Contracts.
Who are Hamilton Construction Co's main competitors?
Direct peers on record are Manson Construction, Flatiron Construction, Ames Construction, Slayden Constructors, Mowat Construction, Stacy Witbeck, Traylor Bros, Herzog Contracting and Granite Construction. Kiewit Infrastructure is listed as a broad incumbent.
Does Hamilton Construction Co have an API?
No public API is recorded for Hamilton Construction Co.
What industry is Hamilton Construction Co in?
Hamilton Construction Co's product category is Heavy Civil Construction Services. Its primary akta.pro industry code is IMAFAEAB, Bridge & Viaduct Construction, with a secondary code of IMAFAAAI, Self-Performing General Contractors. Its NAICS code is 238120 and its SIC code is 1600.