Gilbane, Inc. Email Format

Construction201-500 Employees

Gilbane, Inc. is a U.S.-based construction firm that provides a broad array of services spanning the project lifecycle, from early planning and integrated consulting to construction management and project close-out. It also delivers ongoing facility management to address the long-term needs of built environments across multiple markets. Founded in 1870 and still privately held as a family-owned company, Gilbane is characterized as a long-standing participant in the construction industry. The company operates at a mid-sized scale within the sector, employing a few hundred professionals.

In 2026, Gilbane expanded its presence in Philadelphia and began construction on the Bellwether Laboratory, a manufacturing facility dedicated to radioactive compounds used in cancer therapies.

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