Hermanson Company
Hermanson Company LLC is a Pacific Northwest mechanical construction firm founded in 1979 that provides HVAC, plumbing, sheet metal fabrication, and design-build engineering services to healthcare, technology, government, industrial, and education clients across Washington, Oregon, and select out-of-state projects.
- Company typePrivate
- Founded1979
- HeadquartersKent, United States
- Headcount251–500
- GTM typeB2B
- OfferingServices
What Hermanson Company does
Hermanson Company LLC is a privately held mechanical construction firm headquartered in Kent, Washington, founded in 1979 by Jerry Hermanson after roughly 25 years in the sheet metal industry. The company specializes in mechanical systems construction for buildings, including HVAC, plumbing, sheet metal fabrication, pipe-fitting, and design-build engineering. It serves a diversified mix of healthcare (Harborview Medical Center, MultiCare, Mary Bridge Children's, Asante Rogue Regional), technology (Amazon, Google, Microsoft, F5 Networks), government (SeaTac Airport, Sound Transit, U.S. GSA), industrial (Panasonic Energy, Boeing), education (University of Washington), and commercial clients, primarily across the Pacific Northwest (Washington and Oregon), with project-based geographic extensions including the Panasonic Electric Vehicle Battery facility in De Soto, Kansas.
The firm's core operations span four primary service lines: mechanical construction services covering design, fabrication, and installation of HVAC, plumbing, and sheet metal systems for new construction, renovation, retrofit, and tenant improvement; design-build engineering that integrates mechanical design with construction execution; lean fabrication supported by dedicated fabrication facilities for off-site prefabrication of ductwork, piping, and plumbing assemblies; and 24/7 service and maintenance operations. The company uses BIM/VDC and CADD tooling for MEP trade coordination, clash detection, coordinated shop drawings, prefabrication support, and multi-trade modeling. It operates a direct enterprise sales motion engaging general contractors, construction managers, and building owners, supplemented by a KCDA cooperative purchasing channel for public-sector clients, with major general contractor relationships including Mortenson, Hensel Phelps, and Swinerton, and joint-venture relationships including H&M Harborview JV, LLC with McKinstry.
Hermanson generates revenue primarily through project-based professional services contracts, with services priced on a quote basis and not publicly disclosed. The company maintains a workforce of 500+ professionals and is led by CEO Rick Hermanson (son of the founder) with President Paul Robinett and a principal-led operating team. The firm is recognized on ENR's 2025 Top Mechanical and Specialty Contractors Lists, indicating meaningful scale relative to industry peers, although specific revenue figures are not publicly disclosed. Recent strategic activity includes a 2026 joint venture with McKinstry for the Harborview Bond Program, expansion of the Critical Environments Group targeting data center and mission-critical work, and ongoing flagship project deliveries such as the Panasonic EV facility and Climate Pledge Arena mechanical systems upgrade.
Hermanson Company firmographics
Firmographics- Name
- Hermanson Company
- Legal name
- Hermanson Company LLC
- Website
- https://hermanson.com
- Company type
- Private
- Founded year
- 1979
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- Hermanson Company LLC is a Pacific Northwest mechanical construction firm founded in 1979 that provides HVAC, plumbing, sheet metal fabrication, and design-build engineering services to healthcare, technology, government, industrial, and education clients across Washington, Oregon, and select out-of-state projects.
- Ownership category
- akta.pro rank
Hermanson Company industry classification
Industry- Product category
- Mechanical Construction Services
- NAICS
- Plumbing, Heating, and Air-Conditioning Contractors (238220)
- akta.pro primary industry
- HVAC & Refrigeration Contracting (IMAFALAB)
Keywords
Where Hermanson Company is headquartered
LocationHeadquarters
- HQ city
- Kent
- HQ country
- United States
- HQ region
- North America
Offices8 records
Markets served
Hermanson Company business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales, Supply Chain
Revenue model
- Mechanical Construction Services: Design, fabrication and installation of mechanical systems including HVAC, sheet metal, pipe-fitting and plumbing for construction projects ranging from large complex new construction and renovation to retrofits and tenant improvements.
- Design-Build Engineering: Integrated mechanical and plumbing system design through collaboration between design engineers and construction professionals.
- Service & Maintenance: 24/7, 365-days a year maintenance, equipment retrofit and emergency services for building mechanical systems.
- Lean Fabrication: Off-site prefabrication of ductwork, piping and plumbing assemblies for construction projects.
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
Hermanson Company product offering
Product offeringCore offering
Hermanson Company is a mechanical construction firm that designs, fabricates, and installs HVAC, plumbing, sheet metal, pipe-fitting, and specialty metal systems for commercial, healthcare, technology, government, and industrial building projects. The company delivers its work through integrated design-build engineering, in-house lean prefabrication, and 24/7 service and maintenance operations across the Pacific Northwest and select out-of-region projects.
Differentiator
Problem solved
Functional benefit
Brands
- H&M Harborview JV: A joint venture between McKinstry and Hermanson Company for delivering mechanical and plumbing design-build solutions for the Harborview Bond Program.
Products and services
- Mechanical Construction Services Design, fabrication, and installation of mechanical systems including HVAC, sheet metal, pipe-fitting, and plumbing for construction projects ranging from large complex new construction and renovation to retrofits and tenant improvements.
- Design-Build Engineering Integrated mechanical and plumbing system design delivered through collaboration between experienced design engineers and skilled construction professionals, providing efficient, cost-effective, and high-quality systems through an integrated, streamlined process.
- Service & Maintenance 24/7, 365-days-a-year maintenance, equipment retrofit, and emergency services for building mechanical systems, supporting installed-base clients across healthcare, technology, government, and commercial portfolios.
- Lean Fabrication Off-site prefabrication and assembly of ductwork, piping, and plumbing systems through dedicated fabrication facilities designed and operated under Lean Construction practices to standardize components and simplify on-site installation.
- Telecom Mechanical Service Mechanical construction and service work for telecommunications and mission-critical facilities, supporting data center, telecom, and other critical environments clients.
Companies that use Hermanson Company
Customer profileNamed customers15 records
Segments9 records
Ideal customer profiles4 records
Hermanson Company technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Hermanson Company partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core and major.
- McKinstrycoreH&M Harborview JV, LLC is a joint venture between McKinstry and Hermanson Company. The JV was selected as mechanical and plumbing design-build partner for Harborview Bond Medical Center's facility and infrastructure improvements. Both are Pacific Northwest's most experienced mechanical contractors delivering integrated mechanical and plumbing design-build solutions with focus on safety, innovation and long-term value.
- King County Directors Association (KCDA)coreHermanson Company is a KCDA vendor providing HVAC Building Systems & Installations (Contract 270) and HVAC Maintenance Services (Contract 280) to King County government entities and public agencies through cooperative purchasing.
- SwinertonmajorHermanson has an ongoing partnership with Swinerton delivering multiple tenant improvement projects at the 5 MLK building in Portland. The partnership has resulted in repeat work and expanded scope including Pacific WRO and Level 4 & 5 Spec Suites projects.
- MortensonmajorMortenson is a key construction partner on major projects including Harborview Bond Program and William Kenzo Nakamura Federal Building. Working together as OneTeam for large-scale healthcare and public works projects.
- Perkins & WillmajorArchitecture firm involved in Harborview Bond Program working with H&M Harborview JV and Mortenson on healthcare facility design and construction.
- Hensel PhelpsmajorHensel Phelps is a construction partner on SeaTac Airport North Satellite Expansion project. Women of Hermanson organized job site tour with Hensel Phelps demonstrating collaborative working relationships.
- Panasonic EnergymajorHermanson is constructing Panasonic Electric Vehicle Battery Manufacturing Facility in De Soto, Kansas and Battery Active Materials Factory (BAM-2). Featured in United Association Journal for work on EV battery plant.
- UW MedicinemajorUW Medicine is a key healthcare partner involved in Harborview Bond Program with H&M Harborview JV, supporting Pacific Northwest's top Level I adult and pediatric trauma center.
- King CountycoreKing County is a key partner in Harborview Bond Program working with H&M JV, Mortenson, Perkins & Will, and UW Medicine for healthcare facility improvements.
Scale indicators9 records
Recent moves5 records
Expansion highlights6 records
Hermanson Company competitors and assessment
Company assessmentDirect peers
- McKinstry: Pacific Northwest-based mechanical, electrical, and energy services contractor with similar design-build, HVAC, plumbing, and building performance offerings. Direct peer and JV partner with Hermanson on the H&M Harborview JV, serving many of the same healthcare, tech, and public-sector clients.
- Holaday-Parks: Seattle-based mechanical contractor specializing in HVAC, plumbing, and sheet metal for healthcare, higher education, and commercial construction in the Pacific Northwest. Closest direct competitor to Hermanson on size, geography, and service mix.
- University Mechanical Contractors: Pacific Northwest mechanical contractor delivering HVAC, plumbing, and design-build mechanical services for commercial, healthcare, and higher education projects. Comparable size and regional footprint to Hermanson with overlap in UW and healthcare accounts.
- AMS Mechanical Services: Western U.S. mechanical contractor with HVAC, plumbing, and design-build capabilities for healthcare, higher education, and commercial construction. Direct peer in business model and vertical mix, with growing Pacific Northwest presence.
Broad incumbents
- Comfort Systems USA: National publicly traded mechanical contractor with HVAC, plumbing, and piping operations across the U.S. Operates at much larger scale than Hermanson but competes for the same hyperscaler, healthcare, and industrial mechanical work, including in the Pacific Northwest.
- EMCOR Group: Fortune 500 mechanical and electrical construction services provider with a broad U.S. footprint including data center, healthcare, and commercial mechanical work. Competes with Hermanson on large nonresidential projects and hyperscale data center builds.
- Limbach Holdings: Public mechanical contractor focused on HVAC, plumbing, and building systems for healthcare, higher education, and commercial customers. Operates design-build and service/maintenance models comparable to Hermanson's integrated delivery.
- APi Group: Public safety, specialty, and industrial services holding company whose subsidiary APi Construction (and related entities) compete in mechanical services and life safety for nonresidential buildings. Larger scale and broader service portfolio than Hermanson.
Regional players
- Southland Industries: Design-build mechanical contractor specializing in HVAC, plumbing, and building systems with primary U.S. footprint in California and the West Coast. Comparable design-build delivery and fabrication model to Hermanson, with some overlap in Pacific Northwest and West Coast data center work.
Emerging players
- Taft Electric Company: Pacific Northwest electrical and low-voltage contractor with growing mechanical-adjacent capabilities serving healthcare, higher education, and tech customers. Comparable customer mix and regional footprint to Hermanson with overlapping project pipeline.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Hermanson Company social profiles
Digital presenceHermanson Company financial estimates
Financial estimateRevenue estimate
Valuation estimate
Hermanson Company leadership team
Management profileNumber of profiles
Profiles26 records
Hermanson Company funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Hermanson Company 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 Hermanson Company
What does Hermanson Company do?
Hermanson Company is a mechanical construction firm that designs, fabricates, and installs HVAC, plumbing, sheet metal, pipe-fitting, and specialty metal systems for commercial, healthcare, technology, government, and industrial building projects. The company delivers its work through integrated design-build engineering, in-house lean prefabrication, and 24/7 service and maintenance operations across the Pacific Northwest and select out-of-region projects.
Is Hermanson Company a public or private company?
Hermanson Company is a private company. It is classified as family owned and is currently operating.
When was Hermanson Company founded?
Hermanson Company was founded in 1979. It employs 251 to 500 people.
Where is Hermanson Company based?
Hermanson Company is headquartered in Kent, United States, in the North America region.
How does Hermanson Company make money?
Four revenue lines are on record. Mechanical Construction Services are the primary driver. The others are design-Build Engineering, service & Maintenance and lean Fabrication.
Who are Hermanson Company's main competitors?
Direct peers on record are McKinstry, Holaday-Parks, University Mechanical Contractors and AMS Mechanical Services. Broad incumbents are Comfort Systems USA, EMCOR Group, Limbach Holdings and APi Group. Southland Industries is listed as a regional player. Taft Electric Company is listed as an emerging player.
Does Hermanson Company have an API?
No public API is recorded for Hermanson Company.
What industry is Hermanson Company in?
Hermanson Company's product category is Mechanical Construction Services. Its primary akta.pro industry code is IMAFALAB, HVAC & Refrigeration Contracting. Its NAICS code is 238220.