H.F. Lenz Company
Design ServicesPennsylvania, United States51-200 Employees
H.F. Lenz Company is a design-services firm offering a comprehensive suite of engineering for building systems, infrastructure, and industry. Now in its 80th year, its projects span the United States with a concentration in the Northeast, and annual activity in MEP, civil, and structural construction exceeds $600 million. The firm serves markets including education, corporate, government, health care, and industry, with specialists tailored to each sector. Headquartered in Johnstown, Pennsylvania, the company operates satellite offices in Pittsburgh, Lancaster, Pennsylvania, Conneaut, Ohio, and Middletown, Connecticut, supported by a workforce that includes licensed engineers across all 50 states and the District of Columbia. Its service offering covers mechanical, electrical, and plumbing engineering alongside life-safety and fire-protection, communications, civil and structural disciplines, plus construction-phase services, commissioning, LEED design, Energy Star validation, GIS, and surveying. In 2025 Engineering News-Record ranked the firm among the Top 500 Design Firms.