March 07, 2022

The 2022 Construction Power 75 -

City & State

There are precious few industries whose effect on our daily lives can be felt, seen and experienced more than construction. The roads we drive on, the bridges we cross, the malls we shop in, the places we live, the skylines we love – all are tangible examples of the impact the construction industry has had and continues to have in Pennsylvania.

Despite being hampered and, at times, kept in stasis for close to two years by the coronavirus pandemic, Pennsylvania’s construction industry continues to be an essential driver of the state’s economy, creating good-paying jobs and offering a clearly defined path to the middle class.

City & State’s first Construction Power 75 list identifies the leading builders, contractors, public officials, construction managers, consultants, lawyers and advocates who are building – and rebuilding – the commonwealth.

1. Harold Yoh

Chair & CEO, Day & Zimmermann

Harold L. Yoh III oversees one of the largest companies on this list, the 121-year-old, Philadelphia-based Day & Zimmermann, which employs over 50,000 people in more than 150 locations. The family-owned company, which has annual revenue of $2.7 billion, specializes in all aspects of construction and engineering and staffing and defense. Over the years, Day & Zimmermann’s clients have included Hershey’s, the Phillies, NBC and the U.S. military. Harold became chairman in 1999, following his father “Spike” Yoh and his grandfather Harold Yoh.

2. Maggie Hardy Knox

Owner, 84 Lumber

Maggie Hardy Knox runs 84 Lumber, the building supplies company founded in 1956 by her father, Joseph Hardy. Knox took over 84 Lumber, headquartered about 20 miles south of Pittsburgh, in 1992, when she was only 27 years old. The company operates more than 250 stores and employs more than 5,000 people and is the largest privately held supplier of building materials in the country. In 2020, it did almost $4 billion in revenue and expanded into kitchen and bathroom textiles.

3. Clifford Rowe

CEO, PJ Dick-Trumbull-Lindy Group

A 40-year veteran of the industry, Clifford Rowe is a hands-on leader of all projects handled by the Pittsburgh-based PJ Dick-Trumbull-Lindy Group, which calls itself Pennsylvania’s largest contractor. Trumbull and Lindy deal more with road construction, while PJ Dick consistently ranks as one of the top builders whose recent projects include construction management and risk management services for the Tower at PNC Plaza, PNC’s corporate...

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