Yerkes Associates Celebrates 150 Years of Engineering Excellence

Nick Cirilli showing artifiactSubmitted Image

WEST CHESTER, PAYerkes Associates marked its 150th anniversary with a grand celebration at its headquarters on Thursday. Leaders of the firm joined local and state officials, community members, and employees to honor the company’s long-standing contributions to the Philadelphia region.

“Today is a momentous occasion for Yerkes Associates,” said Nick Cirilli, President and CEO. “This milestone reflects our unwavering commitment to quality, service, and community. As we look ahead to the next 150 years, we remain dedicated to continuing to lead the way in engineering, adapting to the ever-changing needs of our clients and community.”

Founded in 1874, Yerkes Associates began with land surveying projects, including work on the Valley Forge National Historical Park. Over time, the company evolved into a comprehensive engineering powerhouse, providing essential planning and design expertise for both public and private entities.

Senator Carolyn Comitta praised the firm’s impact on the region. “It’s an honor to celebrate this milestone with Yerkes, a true pillar of our community. Their contributions to the region are significant, and I know I speak for many when I say we’re incredibly fortunate to have such a visionary company right here in our backyard.”

During the event, Yerkes Associates presented a donation to the Valley Forge Park Alliance to support the renovations and expansion of the historic Maurice Stephens House. This site holds historical importance as the training ground for General Washington’s Continental Army.

East Goshen Board Chair Michele Truitt highlighted the firm’s legacy. “Yerkes Associates has been instrumental in shaping the landscape of our community and the surrounding region. Their work over the past century and a half has had a lasting impact on our infrastructure and growth, and we’re so grateful for their expertise.”

The celebration included a display of historical equipment and original hand-drafted plans, offering attendees a glimpse into the company’s storied past. The event concluded with the unveiling of new signage symbolizing a bright future, followed by a reception.

Yerkes Associates: Pioneering Engineering Excellence for Generations

Yerkes Associates, one of the oldest continuously operating engineering firms in the United States, was founded by Samuel and John Garrigues. For over a century, the Yerkes family guided the firm’s growth, expanding its services from surveying to encompass civil engineering, planning, landscape architecture, and municipal services.

Under the leadership of Nick Cirilli, Yerkes Associates continues to be a full-service surveying and civil engineering firm. The company’s strong commitment to the communities it serves ensures it remains a trusted partner for both public and private entities, shaping the region’s built environment for generations to come.

This milestone not only commemorates Yerkes’ past achievements but also highlights its ongoing dedication to innovation and community service. As the region faces new challenges and opportunities, the expertise and vision of firms like Yerkes Associates will continue to be crucial in driving sustainable growth and development.

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