Stellar J Corp
Stellar J Corporation is an employee-owned heavy civil and EPC contractor founded in 1986 that builds infrastructure, bridges, water/wastewater plants, marine terminals, and renewable energy facilities including RNG and hydrogen plants for government agencies and energy developers across the Pacific Northwest, California, and Texas.
- Company typePrivate
- Founded1986
- HeadquartersWoodland, United States
- Headcount51–100
- GTM typeB2B
- OfferingServices
What Stellar J Corp does
Stellar J Corporation is an employee-owned heavy civil general contractor and EPC contractor founded in 1986 and headquartered in Woodland, Washington. The company delivers design-build services across three integrated service lines: Renewable Natural Gas (RNG) production plants for dairy farms and waste facilities, hydrogen production facilities and supporting renewable electricity processes, and traditional heavy infrastructure including water and wastewater plants, bridges, marine terminals, and digesters. Notable technical execution includes the Washougal River Utility Bridge, which earned a 2010 Excellence in Engineering Award for a 250-foot free-span lift sequence, and complex micro-tunneling work under a 500-foot shipping canal for the Seattle wastewater system.
Stellar J generates revenue primarily through competitive public bidding for government and municipal projects, supplemented by EPC contracts on renewable energy developments. The customer base is concentrated in public-sector agencies — including WSDOT, ODOT, FHWA, Port of Seattle, City of Seattle, City of Everett, City of Port Townsend, and WA State Dept of Fish & Wildlife — with one named enterprise relationship: EPC delivery for Raven SR's waste-to-hydrogen project in Richmond, California. Operating geography spans the Pacific Northwest (Washington, Oregon, Idaho), with active projects extending into Northern California and Texas.
The company is privately held under an employee-ownership structure founded on merit-based principles, with leadership including CEO/Founder Bob Kinghorn, President Jeff Carlsen, Senior VP/Co-founder Jeff Walker, and CFO Cheryl Subasic. Stellar J reports 100% project completion and 99.2% on-schedule delivery across its portfolio, and holds prequalification with multiple state DOTs and municipal agencies. The business model is project-based, lumpy by nature, and dependent on public infrastructure budgets, with strategic optionality from the newer RNG and hydrogen service lines diversifying the long-term revenue mix.
Stellar J Corp firmographics
Firmographics- Name
- Stellar J Corp
- Legal name
- Stellar J Corporation
- Website
- https://stellarj.com
- Company type
- Private
- Founded year
- 1986
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Stellar J Corporation is an employee-owned heavy civil and EPC contractor founded in 1986 that builds infrastructure, bridges, water/wastewater plants, marine terminals, and renewable energy facilities including RNG and hydrogen plants for government agencies and energy developers across the Pacific Northwest, California, and Texas.
- Ownership category
- akta.pro rank
Stellar J Corp industry classification
Industry- Product category
- Heavy Civil Construction
- NAICS
- Solar Electric Power Generation (221114)
- SIC
- Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Cogeneration Services & Small Power Producers (4991)
- akta.pro primary industry
- Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations) (EUAEADAA)
- akta.pro secondary industries
- Electrical Balance-of-Plant EPC (MV Collection, Cabling, Earthing, Lighting) (EUAEADAB), Overhead & Underground Collection System Construction (MV/HV Lines, Duct Banks) (EUAEADAG)
Keywords
Where Stellar J Corp is headquartered
LocationHeadquarters
- HQ city
- Woodland
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Stellar J Corp business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Technology or R&D, Infrastructure
Revenue model
- General Contracting Services: Project-based construction services for infrastructure, transportation, water/wastewater, and energy projects. Revenue generated through competitive bidding on public and private construction contracts.
- EPC Contractor Services: Engineering, Procurement, and Construction services for renewable energy projects including RNG facilities, hydrogen production, and green energy developments
- Project Development: Development and construction of renewable natural gas, hydrogen, and renewable electricity production facilities
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | — | Project-based pricing through competitive bidding |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels6 records
Stellar J Corp product offering
Product offeringCore offering
Stellar J Corp is an employee-owned general contractor and EPC contractor that designs, develops, engineers, and builds heavy civil infrastructure and renewable energy facilities. Its core offerings include Renewable Natural Gas (RNG) production plants for dairy farms and waste facilities, hydrogen production facilities, water and wastewater treatment plants, bridges, marine terminals, digesters, and other heavy infrastructure projects awarded through competitive public and private bidding.
Product overview
Stellar J Corp is a merit-based, employee-owned General Contractor, EPC Contractor, and Project Developer established in 1986. The company operates as a single unified construction services portfolio rather than a platform-plus-modules architecture. Its core service offerings include Renewable Natural Gas (RNG) Production Plants for dairy farms and waste facilities, Hydrogen Production Facilities including the Raven SR green hydrogen project, and general Infrastructure Construction covering water/wastewater plants, bridges, marine terminals, and renewable energy projects. The company reports 0 Structures, 0 Marine Facilities, 0 Digesters, 0 Bridges, 0 Water & Wastewater Plants, 0 Renewable Natural Gas Facilities, 0 Renewable Electricity Facilities, and 0 Hydrogen Production Facilities in their project portfolio, with current active projects including RNG facilities, water treatment plants, bridge replacements, and marine terminal work across Washington, Oregon, Idaho, Texas, and California.
Differentiator
Problem solved
Functional benefit
Products and services
- Renewable Natural Gas (RNG) Production Plants
Quantifiable outcome
- 100% project completion rate
- +3 more outcomes
Companies that use Stellar J Corp
Customer profileNamed customers13 records
Segments3 records
Ideal customer profiles2 records
Stellar J Corp technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Stellar J Corp partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Raven SRcoreStellar J Corporation is the EPC contractor on Raven's green hydrogen project in Northern California. This partnership involves the design, engineering, and construction of waste-to-hydrogen production facilities, positioning Stellar J as a key execution partner in renewable energy development.
Scale indicators4 records
Recent moves5 records
Expansion highlights5 records
Stellar J Corp competitors and assessment
Company assessmentDirect peers
- Mortenson Construction: Privately held national GC and EPC contractor with a flagship wind, solar, and energy storage construction practice plus heavy civil infrastructure work — directly comparable to Stellar J's renewable EPC and heavy civil mix.
- Granite Construction: Public West Coast heavy civil contractor serving transportation, water, and energy markets in California and the Pacific Northwest — closely comparable geography, public-sector client mix, and project types.
- Quanta Services: Large publicly traded infrastructure construction firm focused on electric and gas utility, renewable energy, and pipeline projects — overlapping EPC services and energy transition exposure.
- MasTec: Public infrastructure construction company serving energy, utility, communications, and oil & gas — overlapping renewable energy EPC and pipeline construction scope.
- Walsh Group / Walsh Construction: Family-owned heavy civil and building contractor with significant bridge, transportation, and water infrastructure work — comparable privately held structure and complex-project execution.
Regional players
- Manson Construction: Pacific Northwest-based marine and heavy civil contractor known for complex marine terminal and waterfront infrastructure — directly comparable on Stellar J's marine and West Coast heavy civil work.
Broad incumbents
- Black & Veatch: Global employee-owned EPC firm specializing in water, energy, and telecommunications infrastructure — overlapping on water/wastewater plant construction and renewable energy project delivery.
- Burns & McDonnell: Employee-owned engineering, architecture, and construction firm delivering power, water, and infrastructure EPC — close parallel in ownership structure, EPC services, and renewable energy work.
- Worley: Global EPC and project services company focused on energy, chemicals, and resources — comparable renewable fuels (including hydrogen and RNG) project execution capabilities.
- AECOM: Global infrastructure consulting and construction services firm with extensive water, transportation, and energy practices — comparable at the portfolio level for design-build heavy civil and energy transition work.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Stellar J Corp social profiles
Digital presenceStellar J Corp financial estimates
Financial estimateRevenue estimate
Valuation estimate
Stellar J Corp leadership team
Management profileNumber of profiles
Profiles4 records
Stellar J Corp funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Stellar J Corp M&A and investment
M&A and investmentM&A
Investments4 records
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Stellar J Corp
What does Stellar J Corp do?
Stellar J Corp is an employee-owned general contractor and EPC contractor that designs, develops, engineers, and builds heavy civil infrastructure and renewable energy facilities. Its core offerings include Renewable Natural Gas (RNG) production plants for dairy farms and waste facilities, hydrogen production facilities, water and wastewater treatment plants, bridges, marine terminals, digesters, and other heavy infrastructure projects awarded through competitive public and private bidding.
Is Stellar J Corp a public or private company?
Stellar J Corp is a private company. It is classified as management employee owned and is currently operating.
When was Stellar J Corp founded?
Stellar J Corp was founded in 1986. It employs 51 to 100 people.
Where is Stellar J Corp based?
Stellar J Corp is headquartered in Woodland, United States, in the North America region.
How does Stellar J Corp make money?
Three revenue lines are on record. General Contracting Services are the primary driver. The others are EPC Contractor Services and project Development.
Who are Stellar J Corp's main competitors?
Direct peers on record are Mortenson Construction, Granite Construction, Quanta Services, MasTec and Walsh Group / Walsh Construction. Manson Construction is listed as a regional player. Broad incumbents are Black & Veatch, Burns & McDonnell, Worley and AECOM.
Does Stellar J Corp have an API?
No public API is recorded for Stellar J Corp.
What industry is Stellar J Corp in?
Stellar J Corp's product category is Heavy Civil Construction. Its primary akta.pro industry code is EUAEADAA, Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations), with a secondary code of EUAEADAB, Electrical Balance-of-Plant EPC (MV Collection, Cabling, Earthing, Lighting). Its NAICS code is 221114 and its SIC code is 1623.