JHKelly, LLC

What JHKelly, LLC does

JHKelly, LLC is a family-owned, self-performing multi-trade general contractor headquartered in Longview, Washington, founded in 1923 and now employing 1,500+ people across four generations of family leadership. The company operates five integrated service lines — Industrial Construction (heavy civil, concrete, structural steel, process piping, millwright, boilermaker, plant maintenance), HVAC & Plumbing (design, fabrication, installation, maintenance), Electrical (industrial/commercial construction, instrumentation & controls, UL 508A panel shop), 24/7 Service & Maintenance (HVAC, plumbing, electrical, refrigeration, chiller/boiler service), and Off-Site Manufacturing (plumbing, pipe, electrical, sheet metal fabrication, modular assemblies) — and self-performs 90%+ of project work.

The underlying technology platform combines a BIM/VDC team of 45+ Revit-based detailers (coordination, sequencing, digital layout via Trimble points), the GTP Stratus fabrication and workflow management platform with direct Revit integration for real-time progress tracking, BOM development, and paperless testing/turnover packages, and the Remarcable procurement platform for centralized purchase orders, quotes, inventory, and tool/equipment management. Operations span the Pacific Northwest plus Idaho, Montana, and Arizona, with offices in Longview, Seattle, Vancouver, Portland, and Milwaukie, and a customer base spanning pulp & paper, data centers, healthcare, food processing, semiconductor, refining, power, hospitality, and education.

The business model is anchored on project-based construction contracts (lump sum, T&M, design-build) supplemented by recurring 24/7 service and maintenance revenue streams and off-site fabrication/module manufacturing revenue. The company leverages union craft labor through signatory agreements with nine major craft unions, and its membership in the ACE Peer Group provides access to over $3.5 billion in combined annual purchasing power across five comparable MEP contractors, supporting cost competitiveness on materials and equipment. Recent strategic activity includes acquisitions of Pinchiff Mechanical (2023, Seattle expansion) and M.R. Mechanical (2026, forming the JH Kelly Chiller Group), alongside entry into data center and semiconductor verticals (DLR, QTS, Micron).

Name

JHKelly, LLC

Legal name

JHKelly, LLC

Website

https://jhkelly.com

Company type

Private

Founded year

1923

Operating status

Operating

Headcount range

501–1,000 employees

Short description

JHKelly, LLC is a family-owned Pacific Northwest self-performing multi-trade general contractor founded in 1923, delivering industrial construction, HVAC/plumbing, electrical, 24/7 service, and off-site fabrication for enterprise clients across pulp & paper, data centers, healthcare, semiconductor, refining, and food processing.

Ownership category

akta.pro rank

Product category

Industrial and Commercial Construction Services

SIC

Construction - Special Trade Contractors (1700)

akta.pro primary industry

Plumbing & Pipefitting Contracting (IMAFALAC)

Keywords

• Industrial construction services
• Mechanical contracting
• HVAC plumbing services
• Electrical construction services
• Pipe fabrication manufacturing

Headquarters

HQ city

Longview

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Construction Contract Revenue: Project-based revenue from industrial and commercial construction contracts. Services include general contracting, design-build, and time & materials arrangements. Revenue generated from self-performing multi-trade work across mechanical, electrical, plumbing, and structural disciplines.
2. Service & Maintenance: Recurring revenue from 24/7 service and maintenance contracts including HVAC, plumbing, electrical, refrigeration, and commercial kitchen equipment service.
3. Off-Site Manufacturing: Fabrication and module manufacturing services including plumbing fabrication, pipe fabrication, electrical fabrication, sheet metal fabrication, and pre-assembled modules.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

JHKelly, LLC is a self-performing, multi-trade general contractor providing industrial construction, commercial mechanical (HVAC and plumbing), electrical, 24/7 service and maintenance, and off-site prefabrication and module manufacturing services. The company serves enterprise and mid-market clients across the Pacific Northwest, Idaho, Montana, and Arizona, with approximately 90%+ self-performance across heavy civil, structural steel, process piping, millwright, boilermaker, mechanical, and electrical trades.

Product overview

JH Kelly is a family-owned industrial and commercial contractor founded in 1923, operating as a self-performing, multi-trade General Contractor in the Pacific Northwest. The company offers five core service lines: Industrial Construction (Heavy Civil, Concrete, Structural Steel, Process Piping, Millwright, Boilermaker, and Plant Maintenance), HVAC & Plumbing (Design, fabrication, installation, maintenance), Electrical (Construction, Instrumentation, Controls, Lighting, UL 508A Panel Shop), 24/7 Service & Maintenance (Emergency services, preventative maintenance, refrigeration, boilers, chillers), and Off Site Manufacturing (Prefabrication and modular construction). The company also acquired M.R. Mechanical in 2026, now operating as the JH Kelly Chiller Group, specializing in applied chiller systems. Key technology capabilities include Virtual Design & Construction (BIM) services with over 45 detailers, and Stratus Workflow Management software that integrates with Revit for paperless fabrication and installation tracking. The company leverages a union workforce with agreements across nine major craft unions and maintains an in-house supply chain with access to $3.5 billion in combined purchasing power through the ACE Peer Group.

Differentiator

Problem solved

Functional benefit

Brands

• JH Kelly Chiller Group: Specialized division providing applied chiller services, boiler services, cooling towers, and HVAC repair, rebuilds, maintenance, and replacement. Offers teardown and rebuild, full retrofits, and rental services for chillers and temp heating/cooling equipment.

Products and services

• Industrial Construction Self-performing, multi-trade general contracting for industrial projects including heavy civil, concrete, pre-engineered metal buildings, structural steel, process piping, millwright services, boilermaker services, and plant maintenance; targeted at refineries, power plants, pulp and paper mills, chemical plants, and manufacturing facilities.
• HVAC & Plumbing Design, fabrication, installation, maintenance, and service for commercial and industrial plumbing and HVAC systems, including hydronic and refrigerant-based systems, duct and air distribution, HVAC controls, startup and commissioning, and special projects.
• Electrical Fully integrated electrical services and construction capabilities for industrial and commercial projects, including instrumentation and controls, lighting, technologies, and a UL 508A panel shop.
• 24/7 Service & Maintenance 24/7 HVAC, plumbing, and electrical emergency service and maintenance for commercial, multi-family residential, and industrial properties, including preventative maintenance, refrigeration, boilers, chillers, commercial kitchen and refrigeration service, vac truck services, and electrical compliance testing.
• Off-Site Manufacturing Prefabrication and modular construction services including plumbing fabrication, pipe fabrication, electrical fabrication, sheet metal fabrication, and modules for just-in-time delivery to project sites.
• JH Kelly Chiller Group Specialized chiller services for applied chiller systems, boilers, and cooling towers, including OEM-certified maintenance, teardown and rebuild, full retrofits, and rental of chillers and temporary heating/cooling equipment; formerly operated as M.R. Mechanical.

Quantifiable outcome

• Reduce detailing time by up to 20% through Stratus direct Revit integration
• +1 more outcomes

Named customers20 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature3 records

Partnerships

Five partnerships are on record, tiered core and minor.

• ACE (Alliance for Contractor Excellence) Peer GroupcoreStrategic or Co-development PartnerCoalition of five similarly sized industry-leading mechanical, electrical, and plumbing contractors across the country. Enables JH Kelly to leverage over $3.5 billion in combined annual purchasing power when negotiating national agreements with major vendors and suppliers, providing better pricing, improved access to scarce equipment, and preferred procurement status.
• Union Craft OrganizationscoreStrategic or Co-development PartnerSignatory agreements with nine major craft unions including Boilermakers, Carpenters, Electricians, Ironworkers, Laborers, Millwrights, Plumbers/Pipefitters, Operators, and Sheet Metal Workers. Ensures steady pipeline of qualified craft professionals and supports workforce development.
• Regional Workforce Initiatives & CTE ProgramsminorStrategic or Co-development PartnerActive participation in regional workforce initiatives, high school CTE programs, pre-apprenticeship partnerships, and union training centers. Supports apprenticeship utilization goals and diversity in the trades through targeted recruitment and mentorship programs.
• M.R. Mechanical (Acquired)coreOthersPacific Northwest leader in applied chiller systems, boilers, cooling towers, and HVAC repair, rebuilds, maintenance, and replacement. Acquisition expands service capabilities and chiller-specific expertise including factory certifications from Carrier, York, ClimaCool, Smardt, Daikin/McQuay, Trane, MultiStack, Dunham-Bush, Danfoss Turbocor, Petra Engineering.
• Pinchiff Mechanical (Acquired)coreOthersMechanical contractor based in Tukwila, Washington. Acquisition expands presence in Seattle market. CEO Ken Pinchiff joined JH Kelly leadership team.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Mortenson Construction: Large US general contractor with a strong industrial, data center, and renewable energy practice and significant Pacific Northwest presence. Highly comparable multi-trade self-perform delivery model and overlapping customer set in semiconductors and clean energy.
• Swinerton: Large US general contractor founded on the West Coast with a significant Pacific Northwest presence in commercial, healthcare, and multi-family. Comparable general contracting and self-perform mechanical capabilities in the same geography.
• Limbach Holdings: Public mechanical contractor focused on commercial HVAC, plumbing, and building automation. Closely comparable service offering, customer type, and recurring service revenue model to JHKelly's commercial mechanical business.
• Comfort Systems USA: National mechanical contractor focused on HVAC, plumbing, and building automation for commercial and industrial customers. Closely comparable core mechanical construction service line and recurring service revenue mix.
• Skanska USA: International construction group with a deep Pacific Northwest presence in commercial, healthcare, and civil construction. Comparable multi-trade GC profile and regional PNW overlap with JHKelly's customer base.

Regional players

• Andersen Construction: Pacific Northwest general contractor with strong industrial and commercial capabilities, including complex multi-trade work. Highly comparable regional GC profile, competing head-to-head with JHKelly for PNW projects.
• Lease Crutcher Lewis: Long-established Pacific Northwest general contractor focused on commercial, healthcare, and higher education. Directly comparable PNW general contracting and MEP self-perform capabilities, competing for the same regional customers.

Broad incumbents

• Quanta Services: Large public infrastructure and utility construction company serving power, renewables, and communications end-markets. Comparable in industrial construction execution and in pursuing energy-transition adjacent work, though focused on utility-scale infrastructure.
• APi Group: Public safety, specialty, and industrial services conglomerate with mechanical and life safety offerings. Comparable specialty services and MEP adjacency, though broader portfolio and larger balance sheet than JHKelly.
• EMCOR Group: Largest publicly traded mechanical and electrical construction and facilities services company in the US. Directly comparable MEP service offering and 24/7 service/maintenance model, but operates nationally and at much greater scale than JHKelly.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xinstagram.com/jhkelly1923
• YouTubeyoutube.com/@jhkelly
• Facebookfacebook.com/JHKelly1923
• LinkedInlinkedin.com/company/jhkelly-llc

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles23 records

Subsidiaries2 records

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 JHKelly, LLC