H3O
H3O Inc. is a privately held industrial contractor in Albany, Oregon, founded in 2008, providing process piping, welding, fabrication, mechanical installation, and 24/7 plant maintenance to industrial manufacturing, water treatment, and hydro-power clients across the Pacific Northwest.
- Company typePrivate
- Founded2008
- HeadquartersAlbany, United States
- Headcount51–100
- GTM typeB2B
- OfferingServices
What H3O does
H3O Inc. is a privately held industrial contractor founded in 2008 and headquartered in Albany, Oregon, serving industrial manufacturing, water treatment, and hydro-power clients across the Pacific Northwest. The company provides a full suite of mechanical construction and fabrication services, including process piping, mechanical installation, pharmaceutical-grade and orbital welding, tanks and vessels, structural and miscellaneous steel, civil and concrete work, millwright services, steel erection, and preventative and emergency plant maintenance delivered on a 24/7 basis. Field capabilities are backed by a 3-bay fabrication shop equipped with two overhead cranes, CNC flame and plasma cutting, plate shearing, bending, rolling, machining, and painting, supported by in-house design and drafting.
H3O holds regulatory certifications that materially define its service authority: it is ASME-authorized for the U Stamp (fabrication of boilers and pressure vessels), National Board-certified for the R Stamp (repairs and alterations), and a certified member of ISNetworld, PICS, and BROWZ contractor pre-qualification platforms. Every manager and superintendent holds OSHA 30 certification, and new hires complete two days of safety training against OSHA, MSHA, and client standards. These credentials collectively enable code-stamp work that restricts the addressable competitor pool.
The business operates on a project-based, direct-sales model with custom quote pricing. H3O reaches customers primarily through direct outreach, a company website (h3oinc.com), and inbound phone inquiries (541-995-6158). The firm is led by founder, owner, and President Sam Hesseltine, supported by a management team of field, shop, project, QC/safety, and logistics managers plus multiple superintendents. Headcount is reported in the 51-100 range, and the company is actively hiring across welding, fabrication, pipefitting, millwright, steel erection, and concrete disciplines, with apprenticeship programs and supervisor incentive packages (company truck, gas card, laptop, tools) in place. No external institutional investors, subsidiaries, or parent company affiliations have been disclosed.
H3O firmographics
Firmographics- Name
- H3O
- Legal name
- H3O Inc.
- Website
- https://h3oinc.com
- Company type
- Private
- Founded year
- 2008
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- H3O Inc. is a privately held industrial contractor in Albany, Oregon, founded in 2008, providing process piping, welding, fabrication, mechanical installation, and 24/7 plant maintenance to industrial manufacturing, water treatment, and hydro-power clients across the Pacific Northwest.
- Ownership category
- akta.pro rank
H3O industry classification
Industry- Product category
- Industrial Construction & Fabrication Services
- NAICS
- Plumbing, Heating, and Air-Conditioning Contractors (238220)
- SIC
- Fabricated Plate Work (Boiler Shops) (3443)
- akta.pro primary industry
- Pressure Vessels, Columns & Storage Tanks (ASME/Process Vessels) (IMAHAEAF)
- akta.pro secondary industry
- Production Design & Detailed Engineering (3D CAD, Drawings, BOM, Nesting) (IMAJAGAK)
Keywords
Where H3O is headquartered
LocationHeadquarters
- HQ city
- Albany
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
H3O business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Supply Chain, Marketing or Sales, Others
Revenue model
- Industrial Construction Services: Project-based industrial construction services including process piping, mechanical installation, structural steel, tanks & vessels, civil & concrete, and millwright services. Revenue generated through project contracts for new construction and repairs.
- Custom Fabrication: Custom fabrication services for conveyors, tanks, vessels, structural steel, and miscellaneous steel. Fabrication shop services including cutting, welding, machining, and painting.
- Emergency Shutdown/Maintenance Services: 24/7 plant maintenance and emergency shutdown services for industrial facilities. Provides skilled labor for routine and emergency service needs.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Project-based custom pricing |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels3 records
H3O product offering
Product offeringCore offering
H3O Inc. is an industrial contractor providing process piping, mechanical installation, welding (SMAW, GTAW, GMAW, FCAW), custom metal fabrication, tanks and vessels, structural steel erection, civil and concrete work, millwright services, and 24/7 emergency shutdown/plant maintenance for industrial manufacturing clients. The company holds ASME U and National Board R stamp certifications enabling code-certified work on boilers and pressure vessels, and operates a 3-bay fabrication shop with overhead cranes supporting full in-house design, drafting, cutting, welding, machining, and painting capabilities.
Product overview
H3O Inc. is an industrial contractor offering a comprehensive suite of construction and fabrication services for the industrial manufacturing market. The company provides welding services (SMAW, GTAW, GMAW, FCAW), design and drafting services, and full-service custom fabrication including conveyors, tanks, structural steel, and miscellaneous metal components. These core offerings are supported by civil and concrete services, millwright services, pipefitting services, and steel erection services. The company also holds ASME U and R stamps enabling code-certified work on custom tanks and pressure vessels. Additional offerings include 24/7 emergency shutdown work, preventative maintenance services, and project management services spanning from design through installation. All services are delivered by OSHA 30-certified managers and superintendents.
Differentiator
Problem solved
Functional benefit
Products and services
- Welding Services
Companies that use H3O
Customer profileSegments3 records
Ideal customer profiles3 records
H3O technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
H3O partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- ISNetworldminorH3O Inc. is a certified member contractor for ISNetworld, a contractor safety and compliance management platform used by companies to verify contractor safety qualifications.
Scale indicators1 record
Recent moves5 records
Expansion highlights3 records
H3O competitors and assessment
Company assessmentBroad incumbents
- Babcock & Wilcox: Industrial boiler and pressure vessel OEM/services provider with deep ASME code expertise and a much larger global footprint, addressing the same regulated pressure-vessel end market as H3O.
- Hoffman Construction: Larger Portland-based general/industrial contractor operating across the Pacific Northwest with industrial process and mechanical scopes overlapping H3O's work, but at much greater scale and project size.
- MYR Group: Large electrical specialty contractor that, through its industrial and commercial mechanical-adjacent services, competes for similar industrial owner-operator projects where multi-trade scopes are bundled.
- APi Group: Diversified safety, specialty, and industrial services platform with mechanical contracting and fabrication arms serving industrial customers at a much larger scale.
- Comfort Systems USA: National mechanical contracting group including industrial piping, sheet metal, and process/mechanical services overlapping H3O's industrial mechanical scope.
- EMCOR Group: National mechanical & electrical construction and facilities services firm with industrial process piping and fabrication capabilities; competes for the same industrial owner-operator work as H3O but across all U.S. geographies.
- Quanta Services: Large-scale infrastructure and industrial services contractor with significant pipe fabrication, pressure vessel, and plant services exposure across utility and industrial end markets.
Direct peers
- Matrix Service Company: Mid-sized industrial construction and fabrication firm serving the oil & gas, power, and industrial end markets with similar code-certified pressure vessel and process piping capabilities.
- Harder Mechanical: Portland, Oregon-based industrial mechanical contractor with process piping, fabrication, and plant services — closely comparable in size, geography, and service mix to H3O.
- Vigor Industrial: Portland-based industrial fabrication and ship repair company with ASME/NBBI code capabilities for pressure vessels, piping, and structural/miscellaneous steel — directly overlapping H3O's core fabrication and code-stamp work in the Pacific Northwest.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
H3O social profiles
Digital presenceH3O compliance and trust
Trust signalCompliance4 records
H3O financial estimates
Financial estimateRevenue estimate
Valuation estimate
H3O leadership team
Management profileNumber of profiles
Profiles15 records
H3O funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
H3O 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 H3O
What does H3O do?
H3O Inc. is an industrial contractor providing process piping, mechanical installation, welding (SMAW, GTAW, GMAW, FCAW), custom metal fabrication, tanks and vessels, structural steel erection, civil and concrete work, millwright services, and 24/7 emergency shutdown/plant maintenance for industrial manufacturing clients. The company holds ASME U and National Board R stamp certifications enabling code-certified work on boilers and pressure vessels, and operates a 3-bay fabrication shop with overhead cranes supporting full in-house design, drafting, cutting, welding, machining, and painting capabilities.
Is H3O a public or private company?
H3O is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was H3O founded?
H3O was founded in 2008. It employs 51 to 100 people.
Where is H3O based?
H3O is headquartered in Albany, United States, in the North America region.
How does H3O make money?
Three revenue lines are on record. Industrial Construction Services are the primary driver. The others are custom Fabrication and emergency Shutdown/Maintenance Services.
Who are H3O's main competitors?
Broad incumbents on record are Babcock & Wilcox, Hoffman Construction, MYR Group, APi Group, Comfort Systems USA, EMCOR Group and Quanta Services. Direct peers are Matrix Service Company, Harder Mechanical and Vigor Industrial.
Does H3O have an API?
No public API is recorded for H3O.
What industry is H3O in?
H3O's product category is Industrial Construction & Fabrication Services. Its primary akta.pro industry code is IMAHAEAF, Pressure Vessels, Columns & Storage Tanks (ASME/Process Vessels), with a secondary code of IMAJAGAK, Production Design & Detailed Engineering (3D CAD, Drawings, BOM, Nesting). Its NAICS code is 238220 and its SIC code is 3443.