When working in a healthcare environment, infection control measures, flexibility in scheduling, minimizing our footprint in your facility, and collaborating with the entire team is critical to your project's success.

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Working for Fortune 500 companies across the country in the Automotive, Food & Beverage, Chemical, Manufacturing and Power Generation markets, our team brings the expertise to eliminate any impact to your plant operations.

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From office campuses to auditoriums to athletic facilities to data centers and manufacturing facilities, we will navigate you through the regulations, laws, codes, and compliance to prevent any delays.

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Finding innovative solutions to your specific challenges that create flexible, modern learning environments that benefit students, educators and the greater community at the lowest possible cost.

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A key component to meeting your schedule is prefabrication – it can save 25% on schedule and 10% on projects, as well as create safer work environments, improve quality, and enhance the revenue stream for you.

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There’s a reason businesses, industrial clients, municipal governments, schools, universities and healthcare organizations call us first for their construction and preconstruction needs: because no other builder manages tough jobs like JP Cullen.

Since 1892, JP Cullen has been known as the builder that takes on the projects others can’t: the very large, the very complex or those requiring deep industry-specific expertise. In other words, projects where there’s no room for error. If you’re planning on putting up a new building, adding an addition or starting a renovation, or if you need specialized steel, masonry or historical restoration work done, rely on JP Cullen to plan and execute your project with maximum efficiency, intelligence and professionalism.

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Our Work

Case Study:

Madison Prefabricated Walls Construction Project

Case Study:

Camp Randall Student-Athlete Performance Center

Case Study:

Ascension Health – St. Francis Hospital 3rd Floor Renovation

Case Study:

Woodward Manufacturing and Office Building

Case Study:

State of Wisconsin Office Building Historical Renovation

Celebrating 125 Years of History
at JP Cullen


The Founding of JP Cullen 1860 – George P. Cullen becomes a respected carpenter and home-builder in Janesville, WI 1892 – George’s…

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Meet the Crew – Brian Girgen


This week we are shining the spotlight on one of our Senior Estimators – Brian Girgen. Brian is a Senior Estimator in…

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Milwaukee Bucks Arena First Truss is Raised into Place


The last two days have been extremely exciting at the Milwaukee Bucks Arena as the first enormous steel truss was set into…

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13040 W. Lisbon Road, Suite 900
Brookfield, WI 53005

Phone: 262.781.4100
Fax: 262.781.6300


330 E. Delavan Drive
Janesville, WI 53546

Phone: 608.754.6601
Fax: 608.754.9171


1 S. Pinckney Street, Suite 330
Madison, WI 53703

Phone: 608.257.1911
Fax: 608.757.6777