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.

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This month, we’re featuring Liz Gugliotti, PE, TURP, senior project engineer in our Natick, MA office. Liz has 17 years of experience in compliance consulting related to state and federal environmental regulations, including auditing, permitting, chemicals management and emergency preparedness. She graduated from Cornell University in 2008 with a bachelor’s and master’s degree in chemical engineering, and has worked at the Natick office ever since. She has consulted for industries including pharmaceuticals and biotechnology, metal plating and finishing, electronics, plastics, and textiles. She has been a licensed professional engineer in chemical engineering since 2013, and became a licensed Toxics Use Reduction Planner in January 2025.

You’ve been with Irwin, now a division of Pennoni, for 17 years. What’s kept you inspired and engaged in your work throughout your career here?

The environmental practice allows me to have ongoing relationships with clients who manufacture a huge variety of products with critical applications. That means getting to see a lot of innovative processes in action and it is always so inspiring to think of the ingenuity and attention to detail that has gone into making these processes work. And our clients are really committed to doing the right thing to minimize their environmental impact. But many times there is still room for improvement in pollution prevention, emergency preparedness, and management systems and it is great to be able to help facilities with improving their environmental programs.

You recently became a certified Toxics Use Reduction (TUR) Planner — congratulations! What does that certification mean to you, and how do you see it shaping your future work?

Being a Toxics Use Reduction Planner is all about helping manufacturing clients who use chemicals as they strive to develop solutions to make their processes more efficient, safer, and less wasteful. This is a major priority for the environmental community in Massachusetts because, in addition to the environmental benefits, it often leads to companies finding solutions that will ultimately save them money. The TUR Planner certification allows me to support companies from a variety of industries by making sure they fully understand their process and think carefully about all the possible benefits of their options to make informed decisions.

You’ve worked across a range of industries, from pharmaceuticals to metal finishing. What do you find most rewarding about helping clients navigate environmental compliance and remediation?

For me the most rewarding types of projects are ones where the client is looking to make a change to their operations and looks to us for help navigating the management of change process. There are so many things to consider for process changes like chemicals management, safety, air permitting, wastewater permitting, and contingency planning. They can create a lot of pitfalls if not done correctly so it is very rewarding when we can help clients get it right the first time!

You’ve expressed interest in expanding industrial engineering work across Pennoni and getting involved in networking events. What excites you most about those opportunities?

I think environmental services are great for cross marketing because they allow us to have an ongoing relationship with a client even after a construction project is completed. Many of our other service lines often interface with environmental such as civil, MEP, and water / wastewater so this represents a lot of opportunities to team up. And we are always interested to hear more about our other service lines to cross market them to our industrial clients as well!

As a senior engineer balancing technical expertise and family life, what advice would you give to other professionals striving to grow their careers while maintaining balance outside of work?

I find that work-life balance is most effective when it becomes a habit that you practice consistently, and not an exception that happens once in a while. That means setting a schedule and communicating it to others, planning ahead whenever you can, and thinking about what resources are there to help if things change either at work or at home. And remembering that work-life balance is for everyone and you are not alone!

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The What’s Possible Podcast Episode 4 is here!

Episode 4 of Pennoni’s What’s Possible Podcast takes a closer look at what it truly means to be an employee-owned company and how Pennoni’s Employee Stock Ownership Plan (ESOP) has shaped our culture, longevity and shared success over the years.

Host Bob McGee sat down with Mr. Chuck Pennoni, Founder and Chairman of the Board, and Mark Celoni, Chairman of Pennoni ESOP Trustees, for a thoughtful conversation on the origins of employee ownership at Pennoni. They collectively looked back on how the idea first took shape, the vision behind it and how it continues to influence our people and our purpose today.

Together, they explore how ESOP drives innovation, collaboration and accountability across every level of the company. Their reflections highlight how ownership empowers employees to think like partners, work toward common goals and strengthen Pennoni’s foundation for the future.

From the early days of employee ownership to the lasting culture it has created, this episode celebrates the people behind our progress and the values that define who we are as a firm.

Listen to Episode 4 of What’s Possible on YouTube or Spotify to discover how employee ownership fuels opportunity and how Pennoni continues to grow together as Partners for What’s Possible.

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This month, we’re featuring Allison Colatriano, a project manager in our Environmental, Health, and Safety group in the New York City – Midtown office and has been with Pennoni since July 2015. She received a B.S. in environmental systems engineering from Penn State University in 2013. She has experience with project managing environmental and industrial hygiene projects that primarily consist of Phase I ESAs, environmental sampling, spill plans, asbestos surveys and abatement, lead surveys and abatement, air assessments, and mold assessments. Allison is a member of Commercial Real Estate Women (CREW) in New York.

You’ve built a career in the environmental and industrial hygiene space. What first drew you to this field, and what continues to excite you about the work?

I have always had an interest in the environmental field throughout my teenage and young adult years. So I combined that with my love for math and studied environmental engineering at Penn State. After I graduated, I was able to get a job in the industry that I had just studied in school, which I felt fortunate to do. I continue to get excited learning about properties and sites that I would otherwise know nothing about. And every job is different, which keeps it fun and interesting.

You made the move from our Philadelphia office to New York City. How has being able to stay with Pennoni through that transition helped you continue growing—both personally and professionally?

Being able to stay with Pennoni throughout my move from Philly to New York City was invaluable. It provided stability in my life when I was going through a major move. In one way I was starting over in a brand new city, but on the other hand I was able to rely on my job at Pennoni as a constant and stable force in my life. I am still grateful for Pennoni allowing me to stay with the company during my move.

You’ve built a strong presence in the environmental field while navigating the fast pace of New York City. How has working in this environment—and staying connected through groups like CREW—shaped your growth as a project manager?

The life of a project manager in consulting is ever changing and fast paced. The quote, “If you can’t take the heat, get out of the kitchen,” comes to mind. Navigating the fast pace of New York City is very much the same mindset due to 24/7 activity. My life in New York has helped me learn how to balance my priorities, whether they are personal or professional. And organizations like CREW New York have been a great support system for making connections in the real estate industry in the city. It is nice to feel a part of and connected to a group of like minded people when you live in such a big city.

Your colleagues describe you as attentive, communicative, and reliable. What values or habits do you think contribute most to being a dependable project manager?

Caring about the job contributes greatly to being a dependable project manager. With that mindset, other aspects of the job should naturally fall into place.

What’s something new you’ve learned recently—whether on the job or through your path toward your PE license—that’s inspired you to keep pushing forward?

Something new that I have learned recently is that I am capable of anything I put my mind to. I have been studying for quite some time now for my upcoming Professional Engineering exam, which started off as a daunting task. The last time I studied for something was in my college years, so returning to this routine brought on some anxiety at first. Once I got in the habit again and set a routine, the studying started to come naturally to me.

Another big goal I have this year is running the New York City marathon in November. I was less nervous to start my training routine for this goal because I have run a marathon before, but I was still anxious to feel the pain of running long distance again. Throughout my training so far, I am learning that I am more disciplined and capable than I remember. I’m excited for race day!

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In the newest edition of Perspective:

See how the former Byberry State Hospital transformed from a neglected site into a regional economic engine with Pennoni’s decades-long involvement.

Learn how Pennoni’s Travel Time Model helps EQT Corporation keep fracking sand flowing efficiently and safely — and at the right price.

Dive into Episode 3 of What’s Possible with Katie Kelly, Pennoni’s underwater inspection lead, for an inside look at what it takes to engineer below the surface.

Meet the newest members of our team, and explore how Dagher Engineering is expanding our expertise in New York City.

Read the full edition now!

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Episode 3 of Pennoni’s What’s Possible Podcast takes us underwater—literally. Host Bob McGee sat down with Katie Kelly, PE, Pennoni’s underwater inspection practice lead, to explore her unique career as both a licensed professional engineer and a commercial diver.

Katie shared how her path to engineering began with middle school problem-solving competitions and a love for physics, eventually leading her into bridge inspection. But her journey didn’t stop at the waterline. After years of topside inspections, Katie pursued commercial dive training and combined her engineering expertise with her comfort in the water—launching a career in underwater inspection.

From inspecting zebra mussel–covered piers to leading Pennoni’s in-house dive team on high-profile projects like the Delaware Memorial Bridge, Katie offered insight into the technical demands and high stakes of her work. She explained how divers rely on specialized gear, real-time communication and strong teamwork to conduct safe, accurate inspections that protect public infrastructure.

The episode also highlighted Pennoni’s emergency response capabilities, with Katie describing how her team mobilizes quickly after floods, ship collisions or hurricanes. Her stories underscore the critical role engineers play in public safety, sometimes making the call to close a bridge on the spot.

Beyond the technical side, Katie spoke about inspiring the next generation of engineers, particularly young women in STEM. Her message: engineering careers can be dynamic, adventurous and deeply rewarding.

Listen to Episode 3 of What’s Possible on YouTube or Spotify to learn how Pennoni engineers are pushing boundaries above and below the surface.

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This month, we’re featuring Eli Brinker, EIT,  is an associate engineer in our geotechnical group in the Philadelphia office. He received a B.S. in civil engineering from the University of Maine in 2019. Eli is affiliated with ASCE, DFI. He has experience in geotechnical engineering,  analysis and drilling oversight. Eli’s responsibilities include coordination and oversite of geotechnical explorations, deep foundation design, dam seepage analysis, retaining wall design and much more. He has worked on multiple projects consisting of new construction and building rehabilitations.

You’re based in our Philadelphia office—what do you enjoy most about working in a city like Philly, and how does the environment influence your day-to-day work?

Working in Philadelphia presents many benefits as well as challenges. I enjoy getting to work on many interesting projects that this City has to offer, from new construction to rehabilitation there is always something cool to work on. My day to day is always busy visiting job sites under construction, looking at potential new projects, or getting calls to the field when issues arise. Living and working in a city with so much history, you’ll never know what you’ll come across or uncover, it makes every project we work on unique with their own different challenges or problems to solve.

You’ve already built a strong foundation in geotechnical engineering. What’s one lesson you’ve learned early in your career that’s really stuck with you?

Communication is key. Sometimes in our field if you aren’t sure about something or have never been in a certain situation, don’t think you have to go in alone. At first, I thought asking questions showed lack of knowledge or weakness. I’ve learned that reaching out to project managers and mentors not only strengthens your own understanding but also builds trust and ensures better outcomes for the project. Communication could also be just checking in on fellow co-workers or colleagues, hearing about jobs people are working on, showing that interest, and building good working relationships.

You’ve worked across exploration, analysis, reporting, and drilling oversight—what part of the geotechnical process do you find most engaging, and why?

I find the exploration process the most engaging, because there is always the element of the unknown. You come into a project with a game plan, but things could always change. It keeps you on your toes and forces you to give undivided attention to the task at hand. Your analysis is only as good as the information you have.

From analysis to drilling oversight, your role spans a lot of ground—literally and figuratively. What part of your role do you find most satisfying?

I would say drilling oversight. I have always had a fascination with watching the installation of micropiles, caissons, and other deep foundations. Whether it be one of our designs or someone else’s, I spent a good amount of time with drilling and pile driving oversight when I started at Pennoni. Getting to build a connection with the contractors in the field, learning to speak their language and just getting to learn from my mentors has taught me so much that allows me to bring that experience into the office and analysis part of the job. It exposes you to so much more of the civil engineering world and allows you to provide that same knowledge and experience to someone who has never seen foundation construction before.

What advice would you give to a fellow young engineer who’s looking to take on more responsibility and grow within their role?

Keep working hard and if you ever find yourself in an idle position ask, “what can I do to make myself or the people around me better?” Everyone values a true team player, someone willing to take on a task, give it their best effort, and see it through. Nothing takes the place of persistence. hard work, and determination often outweigh natural talent. Many of the most successful people are those who simply refused to give up.

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This month, we’re featuring Austin Spencer, PE, geotechnical project manager in our Newark, DE, office. Austin is a licensed professional engineer with over six years of experience. A 2019 graduate of the University of Delaware with a bachelor’s degree in civil engineering, Austin specializes in the areas of geotechnical engineering analysis and testing. His responsibilities include the review and coordination of subsurface explorations and preparation of reports of geotechnical engineering analysis for bridge foundations, buildings, stormwater management, retaining walls, and slopes associated with infrastructure development. Austin is a leader in Pennoni’s geophysical group performing ground penetrating radar surveys and assessments.

You’ve been with Pennoni since your internship and worked your way up to geotechnical project manager – how has your role evolved over time, and what’s made the journey meaningful for you? What has kept you growing here?

When I first started with Pennoni as an intern, I was out in the field 95% of the time, which then transitioned into the first few years full time. The day-to-day work generally consisted of either staffing a drill rig or conducting construction inspections that varied from nuclear density testing of fill material, concrete testing, or miscellaneous deep foundation systems. In the last few years, I have transitioned into an oversight role on projects, with less time spent in the field. One of my main focuses is now the design and calculation of our multiple projects. One of the most meaningful things I have experienced is seeing a project from start to finish. Nothing is more rewarding to see a project you have been working on go from concept to design and through construction. It’s a bit eye opening to see the scale of some projects you are designing and how they translate to out in the field. I like to think that every day is a new day, and with that you are trying to solve a new problem. I am constantly learning something new each day and growing from project to project.

You’re a certified FAA drone pilot—how are drones changing the game in geotechnical field work, and how have you used them on Pennoni projects? What drew you to that skillset, and have you been able to apply it in creative or unexpected ways on the job?

Drones are a great tool for any discipline, not just geotechnical. Recently, we have been using drones for condition assessments, especially on our yearly dam inspections. Being able to fly the same flight plan each year allows us to see any changes year to year that may not be noticeable while walking the site. The applications for drones are endless, and there are always creative ways to apply their capabilities. Last year, I had the opportunity to assist the City of Clearwater with hurricane damage assessments after Hurricane Helene. We were able to document damage to sea walls, marinas, piers, and jetties. Additionally, with the use of the drone we were able to assist a hotel and determine how much sand they lost along their strip of beach due to the hurricane.

What does a great day at work look like for you—whether you’re in the office or out in the field?

I enjoy getting into the nitty gritty and finite points. Engineering is more about problem solving than anything else. A great day in the office is being able to run final checks on a bridge foundation design that has been weeks in the making or piecing together historical information and project information to come to sound conclusions. One thing I like about my job is the traveling that it allows for. I’ve been to jobsites up and down the east coast from New York to Florida and as west as Ohio. Exploring new areas keeps the job fresh and exciting.

What’s something you’ve learned from a colleague or mentor at Pennoni that’s stuck with you?

Two things that have really stuck with me are paying attention to details and “excellent service, on time, and on budget” – Dr. Ted Thomson. At the end of the day, we are a people business trying to solve people’s problems or assist with their development. Now that I have transitioned more into an office role and working with clients, we want to make sure we are providing a service that has clients coming back.

What’s one piece of advice you’d give to an intern or recent grad just starting out in their engineering career?

Do not be afraid to try new things and put yourself out there. As an intern, I said yes to as many things as possible to learn new things and travel to new locations. You will not know if you like or don’t like something if you never try it out. Once I started full-time, I had opportunities to go and present at conferences, which in itself can be intimidating for anyone, let alone someone new to the industry. Looking back, presenting at conferences has been a rewarding experience and a great way to network and learn about different projects across the country.

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This thought-provoking series brings engineering innovation to life through meaningful conversation. Designed as a platform for thought leadership, the podcast features engaging discussions with professionals across the AEC industry, highlighting the ideas and technologies shaping the future of our world.

In Episode 2, host Bob McGee, Pennoni’s director of marketing and communications, is joined by Markus Weidner, chief innovation officer, and Joe Viscuso, director of strategic growth. Together, they explore how forward-thinking design, smart infrastructure and next-generation technology are redefining what’s possible in engineering. From emerging tools to evolving project demands, the conversation offers insight into where the industry is headed and why innovation is more critical than ever.

The What’s Possible Podcast delivers real stories, bold ideas and a glimpse into Pennoni’s commitment to progress, collaboration and purposeful design. With more episodes on the way, we’re excited to continue connecting with our industry, clients and the next generation of professionals.

Let’s keep the conversation going because the future is just getting started.

Watch Episode 2 now on YouTube or listen on Spotify!

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PHILADELPHIA—Pennoni, a multidisciplinary engineering firm headquartered in Philadelphia, is pleased to announce the appointment of Jessica Warren as Environmental, Health, & Safety (EHS) training manager in the firm’s Mechanicsburg, PA, office and training center. With nearly 15 years of experience in environmental science, regulatory compliance and project management, and more than two decades of leadership in education, nonprofit and business development, Jessica brings a rare blend of technical expertise and strategic vision to this role.

In her new role, Jessica will oversee the development and delivery of EHS training programs, building upon Pennoni’s current offerings to expand service capabilities across the Mid-Atlantic. She will report to John-Thomas (JT) Graupensperger, PWS, office director and EHS division manager.

Jessica holds a Bachelor of Science in Engineering & Applied Science from the California Institute of Technology and a Master of Business Administration from Elizabethtown College, where she focused on leadership and sustainability. Her career has spanned consulting engineering firms in Southern California, Georgia and Pennsylvania, including a previous role at Pennoni as environmental division manager in our former Camp Hill office from 2003 to 2004. Her return to the firm marks a meaningful full-circle moment.

“It is great to be working with Jessica again, and I look forward to seeing what she does in this role as we continue to build upon our current program and grow our training services across the Mid-Atlantic. Jessica brings not only deep technical knowledge but also a passion for mentorship, client service, and collaboration that will be invaluable as we expand,” said Graupensperger.

In addition to her technical background, Jessica has held senior leadership positions in education at Harrisburg Academy, Fusion Academy and Harrisburg University, where she led strategic initiatives and mentored both students and professionals. She is also a highly engaged member of the Central PA community, serving on the Board of the American Marketing Association of Central PA, the West Shore Chamber of Commerce Program Committee and the YWCA Women of Excellence Class of 2025. She volunteers with the Caltech Alumni Mentoring Program and the Women in Technology Committee at the Technology Council of Central PA.

“It’s a true honor to return to Pennoni, an organization that gave me some of my earliest opportunities in environmental consulting. This role brings together everything I value: technical training, strategic leadership and empowering others through education. I’m excited to help grow our EHS training services and contribute to the professional development of our teams and clients across the region,” says Warren.

Jessica’s appointment underscores Pennoni’s commitment to expanding its Environmental, Health, & Safety services and investing in top-tier leadership that supports the professional growth of staff and clients alike.

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