JP Cullen

What JP Cullen does

JP Cullen is a fifth-generation, family-owned commercial general contractor headquartered in Janesville, Wisconsin, founded in 1919 and operating across the Midwest with offices in Madison and Milwaukee. The firm delivers full-service construction across five primary verticals — Commercial, Education, Healthcare, Industrial, and Science & Technology — and self-performs significant portions of concrete, masonry, structural steel, and carpentry work to retain quality and schedule control. Project delivery is supported by Virtual Design & Construction (VDC) and Building Information Modeling (BIM) capabilities, an in-house prefabrication operation, and design-build, preconstruction, referendum, sustainability, historic restoration, and safety services.

The company's revenue is generated through project-based construction contracts ranging from under $1 million for smaller renovations to over $200 million for complex mega-projects (e.g., Epic Systems' Deep Space Auditorium, UW Health Eastpark Medical Center). It goes to market via direct enterprise business development and competitive bidding with institutional, Fortune 500, educational, healthcare, and government clients, with subcontractors onboarded through the proprietary CullenBids portal. Marquee clients include General Motors (50+ year relationship, 3+ million square feet of work), Epic Systems, UW-Madison, UW Health, the Milwaukee Bucks (Fiserv Forum), and School District of Janesville.

JP Cullen maintains operations under the legal name J.P. Cullen & Sons, Inc., employs 850+ people, and reports $950+ million in annual revenue. The firm is registered to do work in 22 states, holds multiple AGC awards including a 2017 AGC Build America Grand Award, and achieved a record-low Experience Modification Ratio (EMR) of 0.38 in 2025, signaling safety excellence as a competitive dimension.

Name

JP Cullen

Legal name

J.P. Cullen & Sons, Inc.

Website

https://jpcullen.com

Company type

Private

Founded year

1919

Operating status

Operating

Headcount range

501–1,000 employees

Short description

JP Cullen is a fifth-generation, family-owned general contractor headquartered in Janesville, Wisconsin, delivering full-service commercial, education, healthcare, industrial, and science & technology construction across the Midwest. The firm self-performs core trades, runs VDC/BIM and prefabrication capabilities, and reports $950M+ in annual revenue with 850+ employees.

Ownership category

akta.pro rank

Product category

Commercial Construction Services

NAICS

Commercial and Institutional Building Construction (236220), Nonresidential Building Construction (2362), Structural Steel and Precast Concrete Contractors (23812), Industrial Building Construction (23621)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Commercial General Contracting (New Build) (IMAFAAAA)

akta.pro secondary industry

Self-Performing General Contractors (IMAFAAAI)

Keywords

• Commercial construction
• General contracting
• Preconstruction services
• Design-build construction
• Construction management

Headquarters

HQ city

Janesville

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. General Construction Services: JP Cullen generates revenue as a full-service general contractor delivering construction projects across commercial, industrial, healthcare, education, and science/technology sectors. Revenue is project-based, generated through construction contracts ranging from small renovations to major infrastructure projects exceeding $200 million.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

JP Cullen is a full-service commercial general contractor delivering preconstruction, construction, and design-build services across commercial, education, healthcare, industrial, and science & technology market sectors. The company self-performs concrete, masonry, structural steel, and carpentry work while leveraging Virtual Design & Construction (VDC) and prefabrication techniques to manage projects from inception to completion. Project sizes range from small renovations under $1 million to major facilities exceeding $200 million (e.g., Epic Deep Space Auditorium, UW Health Eastpark Medical Center).

Product overview

JP Cullen is a $950+ million, full-service commercial construction company with over 850 employees, operating as a single unified service offering rather than a platform-plus-modules architecture. The company's integrated construction services encompass Commercial, Education, Healthcare, Industrial, and Science & Technology market sectors, supported by specialized capabilities including Prefabrication, Virtual Design & Construction (VDC), Self-Performed Work, Preconstruction, Referendum Services, Sustainability, Historic Restoration, Design-Build, and Safety Services. These services work together to deliver projects from inception through completion, with the company self-performing significant portions of construction work while leveraging VDC technologies and prefabrication for efficiency.

Differentiator

Problem solved

Functional benefit

Products and services

• Commercial Construction Services Full-service commercial construction covering auditoriums, athletic facilities, sports arenas, and corporate offices. Navigates regulations, laws, codes, and compliance for institutional and enterprise clients.
• Education Construction Services Construction of school buildings, universities, dormitories, athletic facilities, and technical colleges. Creates modern learning environments for students, educators, and communities at optimized cost.
• Healthcare Construction Services Construction of innovative healthcare facilities including hospitals, medical office buildings, specialized treatment centers, and outpatient facilities that support patient-centered care.
• Industrial Construction Services Construction services for Fortune 500 companies across industrial markets including manufacturing plants, distribution centers, food processing, breweries, and industrial facilities.
• Science & Technology Construction Construction of research laboratories, biotech facilities, technology campuses, clean rooms, and BSL-2 rated spaces across commercial, industrial, healthcare, and education markets.
• Preconstruction Services Foundation services including budgeting, scheduling, constructability review, and planning from project inception to completion to ensure safe and successful outcomes.
• Design-Build Services Integrated design and construction delivery that reduces change order potential, lowers costs, and minimizes risk for building owners through fast-track options.
• Prefabrication Services Off-site prefabrication that saves time, reduces costs, creates safer work environments, improves quality, and enhances revenue streams for project owners.
• Historic Restoration Services Historical restoration projects supported by decades of knowledge for accurate estimation and efficient execution of restoration work.
• Referendum Services Helps clients educate voters on referendum issues, develop preconstruction plans, and maximize taxpayer value for publicly funded construction projects.
• Sustainability Services Green building solutions that minimize environmental impact and budget constraints for clients pursuing sustainable construction outcomes.
• Virtual Design & Construction (VDC) VDC/BIM technologies that allow clients to assess where problems could occur before construction has even begun, enabling better planning and risk mitigation.

Quantifiable outcome

• Achieved Experience Modification Ratio (EMR) of 0.38, down from 0.54 in 2024 - lowest ever recorded
• +2 more outcomes

Named customers10 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Six partnerships are on record, tiered core.

• Kahler SlatercoreStrategic or Co-development PartnerArchitectural firm partnership on Fiserv Forum's Gallagher Club project. Kahler Slater provided design services for the $4 million premium VIP hospitality renovation.
• Mortenson ConstructioncoreStrategic or Co-development PartnerConstruction management partnership on Fiserv Forum arena project. Mortenson served as CM while JP Cullen performed steel erection for the 8,000-ton arena structure.
• Merrill SteelcoreTechnology or IntegrationSteel fabrication partnership on Fiserv Forum project. Merrill Steel fabricated the structural steel that JP Cullen erected.
• PopulouscoreStrategic or Co-development PartnerGlobal architecture firm specializing in sports facilities. Designed Fiserv Forum arena in partnership with JP Cullen as steel erector.
• CD SmithcoreStrategic or Co-development PartnerConstruction partner with JP Cullen on Baird Center Expansion structural steel work. Partnership erected 169 large trusses and placed 114,000 lbs. skybridge.
• Associated General Contractors of WisconsincoreStrategic or Co-development Partner100+ year partnership with AGC showing shared commitment to excellence, innovation, and industry leadership. Five Cullen family members served as AGC of Wisconsin Presidents.

Scale indicators8 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Gilbane Building Company: Large, privately held national GC with strong healthcare, education, and life-sciences practices — broader portfolio than JP Cullen but competes head-to-head on the same institutional and science-tech project types.
• Turner Construction Company: Largest US commercial GC with national presence across healthcare, education, sports, and commercial sectors — broader geographic and segment reach but overlapping target projects.
• Clark Construction Group: Top-5 US commercial GC with significant presence in healthcare, education, and sports/entertainment — competes with JP Cullen for large institutional work in the Midwest.

Direct peers

• Boldt Company: Wisconsin-based, family-owned commercial and industrial GC with self-perform capabilities in steel, concrete, and carpentry — closely comparable vertically and culturally to JP Cullen.
• Mortenson Construction: Minneapolis-headquartered, privately held commercial GC active across healthcare, sports, education, and energy — a direct Midwest peer to JP Cullen that has partnered with JP Cullen on Fiserv Forum.
• The Weitz Company: Midwest-headquartered (Des Moines) commercial GC with strong healthcare, senior living, hospitality, and industrial practices — a comparable private, family-influenced peer at similar scale.
• Kraus-Anderson Construction: Minneapolis-based, family-owned commercial GC operating across healthcare, education, government, and industrial sectors — comparable Midwest scale and vertical mix to JP Cullen.
• CD Smith Construction: Fond du Lac, WI-based general contractor serving commercial, healthcare, education, and industrial clients across the Midwest — a direct peer that has partnered with JP Cullen on the Baird Center expansion.
• Hunt Construction Group: National commercial GC specializing in sports venues, hospitality, healthcare, and education — directly comparable to JP Cullen's sports (Fiserv Forum) and healthcare project portfolio.
• Opus Design-Build: Midwest-headquartered design-build GC focused on industrial, healthcare, education, and commercial projects — comparable vertical mix and project scale to JP Cullen.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/JPCullen1/videos
• Facebookfacebook.com/jpcullen1892
• LinkedInlinkedin.com/company/jpcullen

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 JP Cullen