Longevity Meets Flexibility
With nearly 60 years of expertise, Pennoni delivers innovative solutions by approaching engineering challenges from a wider angle than most and fostering collaboration to address current challenges and future demands.
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Pennoni Announces Creation of Chief Growth Officer Role During Milestone Year
Mark T. Celoni Appointed to Newly Established Leadership Position PHILADELPHIA—Pennoni, a multidisciplinary, 100% employee-owned engineer...
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What’s Possible Podcast: Episode 5
The What’s Possible Podcast Episode 5 is here! Episode 5 of Pennoni’s What’s Possible Podcast explores how environmental stewardship and infra...
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Employee Spotlight: Meet Sam Hall
Pennoni’s Employee Spotlight series gives you a behind-the-scenes look at the talented individuals who make our company thrive. Each month, we highl...
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Spring 2026 Perspective
Your spring read has arrived — and it’s all about legacy, leadership and innovation. In the newest edition of Perspective: Explore how Pen...
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Pennoni Announces COO Succession During Milestone Year
Brian Diehl Promoted to COO PHILADELPHIA—Pennoni, an employee-owned multidisciplinary engineering firm headquartered in Philadelphia, ann...
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Employee Spotlight: Our Greatest Achievement at 60, Our People
Each month, Pennoni’s Employee Spotlight highlights the individuals who bring passion, expertise, and dedication to our work. This month (and this y...
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Employee Spotlight: Meet Marvin Ta, PE, PTOE, ENV SP
Pennoni’s Employee Spotlight series gives you a behind-the-scenes look at the talented individuals who make our company thrive. Each month, we highl...
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Announces Regional Leadership Appointments to Strengthen Construction Services Operations
Regional realignment positions construction services division for long-term success PHILADELPHIA—Pennoni, a multidisciplinary engineering...
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Employee Spotlight: Meet Andrew Pennoni, PE
Pennoni’s Employee Spotlight series gives you a behind-the-scenes look at the talented individuals who make our company thrive. Each month, we highl...
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Pennoni Announces Leadership Transition as Andrew Pennoni Named President and CEO
Leadership transition reinforces Pennoni’s commitment to continuity, growth and legacy PHILADELPHIA—Pennoni, a multidisciplinary, 100% ...
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Local Partners, National Expertise
With 40+ offices, we live, visit, and work in the communities we serve, so we build partnerships to bring the best solutions for the community; not just the best solution.
Evolving
Capabilities
We continually employ innovation to accomplish more for our clients, using the latest technologies to complement our traditional engineering services.
Pride in Making an Impact
At Pennoni, we start every project by asking "How will this benefit the community?" Because we are a 100% employee-owned firm, our 1,400+ colleagues put our passion, talent, and value into every project, every day.