What OMA Construction does

OMA Construction, Inc. is a Pacific Northwest heavy civil construction contractor founded in 1998 and headquartered in Maple Valley, Washington. The firm operates three service divisions: Public Works Civil Construction (project management, bridge construction, structural and flatwork concrete, excavation, underground utilities, precast concrete installation, stream mitigation, and storm water treatment), Heavy Hauling (material sourcing, dump site coordination, and heavy equipment transport), and Public Works Landscape (erosion control, hydro-seeding, irrigation, and environmental restoration for infrastructure corridors). A sister company, Mountain Loop Mine Co., provides aggregate and disposal services in the region, enabling vertical integration into materials supply.

The company generates revenue through project-based contracts awarded via competitive bidding. Pricing is determined by public works procurement and subcontractor agreements, with disclosed individual contract values ranging from $2 million to $25 million and billing typically structured as multi-year engagements. OMA serves two primary customer segments: government entities (WSDOT, King County, Snohomish County, multiple Washington cities, Sound Transit, Port of Seattle) as a prime contractor, and large national construction firms (Tutor Perini/Dragados JV, Kiewit/Hoffman JV, Graham Contracting, Stacy Witbeck/Kuney JV, Skanska, Mortenson) as a subcontractor on marquee infrastructure projects. The firm differentiates through a unionized workforce with low turnover, a safety culture, environmental compliance expertise, and a combined management team with over 100 years of industry knowledge.

OMA's entire operating footprint is concentrated in Washington State and the broader Pacific Northwest, with no disclosed expansion outside the region. It is a privately held Washington corporation with no disclosed funding rounds, acquisitions, or external investors, and reports revenue as non-public. The company has completed 579 projects and served 62 clients since 1998, and maintains a project portfolio showcasing work on the SR 99 bored tunnel, SR 520 bridge replacement, East Link Extension, and numerous fish passage and trail projects.

Name

OMA Construction

Legal name

OMA Construction, Inc.

Website

https://omaconstruction.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

101–250 employees

Short description

OMA Construction is a Washington State heavy civil construction contractor serving government agencies and large national prime contractors with bridge construction, excavation, underground utilities, heavy hauling, and public works landscaping services across the Pacific Northwest.

Ownership category

akta.pro rank

Product category

Civil Construction Services

NAICS

Heavy and Civil Engineering Construction (237), Utility System Construction (2371), Site Preparation Contractors (23891)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Design-Build / EPC General Contracting (IMAFAAAD)

akta.pro secondary industries

Environmental & Permitting Compliance During Construction (Erosion Control, Wildlife Mitigation, Monitoring) (EUAMAFAM), Construction Aggregates Mining & Processing (Sand, Gravel, Crushed Stone) (IMADAAAI)

Keywords

• Civil construction services
• Public works construction
• Heavy hauling services
• Bridge construction contracting
• Infrastructure site improvements

Headquarters

HQ city

Maple Valley

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Public Works Civil Construction: Project-based contracts for civil construction services including project management, bridge construction, concrete flatwork, structural concrete, excavation, underground utilities, and precast concrete installation. Revenue is earned through competitive bidding on public works projects with government entities.
2. Heavy Hauling Division: Coordinating material sources, dump sites, heavy equipment haul, and import/export hauling services. Revenue generated through hauling contracts typically tied to construction projects.
3. Public Works Landscape Division: Commercial and public works landscaping services including erosion control, hydro-seeding, soil amendment, irrigation, and new plantings. Revenue through landscape contracts for government projects.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

OMA Construction, Inc. is a heavy civil construction contractor that performs public works infrastructure projects including bridge construction, structural and flatwork concrete, excavation, underground utilities, precast concrete installation, stream mitigation, drainage, and storm water treatment. The company operates three integrated divisions: Public Works Civil Construction, Heavy Hauling (material transport, dump site coordination, heavy equipment hauling), and Public Works Landscape Division (erosion control, hydro-seeding, irrigation, plantings). Services are delivered via competitive bidding on public works RFPs and as subcontractor to large national general contractors.

Product overview

OMA Construction is a heavy civil construction company offering a multi-service platform consisting of three core divisions: Public Works Civil Construction (foundation services including bridge construction, structural concrete, excavation, and underground utilities), Heavy Hauling Division (material transport and logistics), and Public Works Landscape Division (environmental and landscaping services). The company also operates Mountain Loop Mine Co. as a sister company for aggregate production and disposal. These divisions work together to deliver comprehensive infrastructure projects for government and commercial clients throughout the Northwest region.

Differentiator

Problem solved

Functional benefit

Products and services

• Public Works Civil Construction Heavy civil construction services including project management, bridge construction, structural concrete, concrete flatwork, underground utilities, precast concrete placement, excavation, earth moving, drainage, storm water treatment, and stream mitigation. Serves government entities and general contractors on public infrastructure projects throughout the Pacific Northwest.
• Heavy Hauling Division Construction material hauling services including coordinating material sources, approved dump site setup, material testing, heavy equipment haul, and import/export hauling. Driver coordination with emphasis on the safest drivers and best driving records. Serves construction companies and project sites across the Seattle region.
• Public Works Landscape Division Commercial and public works landscaping services including erosion control, hydro-seeding, soil amendment, irrigation installation, new plantings, and hillside stabilization. Team of over 50 specialists including CESCLs, hydro-seeders, erosion control specialists, irrigation installers, and chemical applicators. Serves transit agencies, transportation departments, and government infrastructure projects.

Quantifiable outcome

• 579 successful projects completed since 1998
• +4 more outcomes

Named customers14 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Mountain Loop Mine (Sister Company)coreStrategic or Co-development PartnerMountain Loop Mine is a sister company of OMA Construction, Inc. that provides Aggregate & Disposal services throughout the Pacific Northwest (PNW) Region. This affiliated company enables OMA to offer integrated construction services with in-house aggregate sourcing and disposal capabilities.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Granite Construction: Large publicly traded heavy civil contractor with significant Pacific Northwest operations covering transportation, water resources, and site development. Overlaps directly with OMA's core civil work but operates at much greater scale and across multiple regions.
• Walsh Group (Walsh Construction): National heavy civil and building contractor with substantial Pacific Northwest operations including bridge, transit, and highway work. Competes for similar public works contracts while operating at substantially larger scale than OMA.
• Traylor Bros., Inc. National heavy civil contractor specializing in bridges, underground, and marine work with presence on major PNW transit projects. Overlaps with OMA's heavy civil capabilities though at significantly larger scale.

Direct peers

• Ceccanti Inc. Tacoma, WA-based civil construction and energy infrastructure contractor with a long history in heavy civil, utilities, and site development across the Puget Sound region. Comparable mid-sized PNW civil competitor.
• Goodfellow Bros. Family-owned heavy civil contractor headquartered in Wenatchee, WA, with deep Pacific Northwest presence in highway, bridge, site development, and environmental work. Similar scale, similar mix of public-works prime contracting and GC subcontracting.
• C.A. Carey Corporation: Issaquah, WA-based site development and heavy civil contractor serving municipal and private clients in the Puget Sound region. Closely comparable in size, geography, and service mix (earthwork, utilities, site prep).
• Tapani Inc. Battle Ground, WA-based heavy civil/site work contractor serving public and private clients across the Pacific Northwest. Highly comparable mid-sized firm competing for similar public works, site preparation, and underground utility projects in the same geography.
• Quigg Brothers Inc. McMinnville, OR-based heavy civil contractor performing bridge, highway, marine, and utility work for public agencies in Oregon and Washington. Directly comparable in size, services (bridges, excavation, concrete), and Pacific Northwest public works focus.

Regional players

• Watson Civil Construction: Pacific Northwest heavy civil contractor performing earthwork, utilities, and site development for public agencies. Comparable service offering, though primarily Oregon-focused, providing a useful regional reference point outside Washington.

Others

• LaFargeHolcim (Holcim US) Aggregates: National aggregate and construction materials supplier with Pacific Northwest operations. Relevant as an aggregate supplier/competitor to OMA's Mountain Loop Mine sister company and as an ecosystem participant in the PNW construction materials chain.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/omaconstruction
• LinkedInlinkedin.com/company/oma-construction-inc.

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

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 OMA Construction