Philadelphia-based company shares 2025 officer promotions firm-wide
PHILADELPHIA – Pennoni, a multidisciplinary engineering firm headquartered in Philadelphia, is delighted to announce the promotion of staff members across the firm to associate vice president and vice president. The promotions were voted on during Pennoni’s executive committee meeting on Wednesday, October 22, 2025.
“Our officers set the standard for excellence at Pennoni. Their innovation, integrity, and commitment to our values drive our success and strengthen our reputation firmwide. This recognition is a direct reflection of their hard work and leadership,” says David DeLizza, PE, president & CEO at Pennoni.
Congratulations to our newly promoted officers:
Natasha Mack has been promoted to associate vice president and serves as director of human resources at our Philadelphia, PA, office.
Elizabeth A. Rudolph, Esq., has been promoted to vice president and serves as assistant general counsel in our Philadelphia, PA office.
Joe Mastronardo, PE, has been promoted to vice president and serves as senior engineer in our Philadelphia, PA office.
Carl St. Pierre, PE, has been promoted to associate vice president and serves as senior engineer in our Philadelphia, PA office.
Jason Haynes, PLS, has been promoted to associate vice president and serves as reality capture director/survey division manager in our Philadelphia, PA office.
Nate Cline, PE, has been promoted to vice president and serves as office director in our West Chester, PA office.
Mike Kissinger, PE, LEED AP, has been promoted to vice president and serves as civil/site division manager in our West Chester, PA office.
Tom Leisse, PE, CME, has been promoted to vice president and serves as senior engineer in our Haddon Heights, NJ office.
Jim Twitchell has been promoted to associate vice president and serves as senior industrial hygienist office director in our Bridgeport, CT office.
Derek Morin, PE, has been promoted to associate vice president and serves as senior engineer and municipal division manager in our Columbia, MD office.
Diana Milian, PE, has been promoted to associate vice president and serves as director of civil and municipal engineering and office director in our Chantilly, VA office.
Justin Brown, PE, has been promoted to associate vice president and serves as principal engineer in our Raleigh, NC office.
Megan Clayton, PE, has been promoted to vice president and serves as principal engineer in our King of Prussia, PA office.
Rick Brinker, PE, has been promoted to vice president and serves as principal engineer in our Lehigh Valley, PA office.
Mark Kinnee, PE, has been promoted to associate vice president and serves as principal engineer in our Philadelphia, PA office.
Steve Elias, PE, has been promoted to vice president and serves as senior engineer in our Winter Haven, FL office.