LEADERSHIP TEAM
At PES, our people are the heart of every project. Our team brings together experienced engineers, project managers, and field professionals who share one commitment: delivering responsive, accountable EPC solutions our clients can trust. Meet the individuals who make PES the reliable partner our customers count on—every project, every time.
Tyler Cook, PE
President of Operations
Tyler Cook leads operations at PES with deep expertise in mechanical engineering, machine design, and regulated industrial equipment. With experience spanning R&D, product development, and compliance with major industry standards, Tyler brings a disciplined, execution-focused approach to engineering and EPC delivery. He is a licensed Professional Engineer in multiple states and plays a key role in ensuring technical quality, constructability, and accountability across PES projects.
Sean Mallory
VP of Business Development
Sean Mallory leads business development and strategic growth initiatives at PES, focusing on EPC opportunities across upstream, midstream, downstream, and emerging energy markets. With a background that spans engineering design, project management, and commercial leadership, Sean bridges technical understanding with client relationships to deliver aligned, high-value solutions. He works closely with clients, partners, and internal teams to support long-term growth and successful project execution.
Jonathon Duhon
Vice President of Operations
Jonathon Duhon oversees day-to-day operational systems and execution at PES, ensuring projects are delivered with consistency, quality, and efficiency. Having progressed from Design Manager to VP of Operations, Jonathon brings extensive experience in project management, design systems, and quality control. He has been instrumental in PES’s expansion into larger project scopes and new technical industries, supporting scalable growth and operational excellence.
Adam Pelletier, PE
Principal Engineer
Adam Pelletier serves as Principal Engineer at PES, providing technical leadership across engineering, project management, and EPC execution. With extensive experience managing global operations, large-scale assets, and multidisciplinary teams, Adam brings a strong operational mindset to engineering leadership. A licensed Professional Engineer in multiple states and a U.S. patent holder, he plays a key role in mentoring engineers, endorsing designs, and ensuring projects meet the highest standards of safety, reliability, and performance.
Our Story
Practical Engineering Solutions (PES) began in 2010 as a mechanical engineering project services firm, built to solve complex industrial challenges with speed, precision, and accountability. Over time, our clients demanded more: faster mobilization, tighter coordination, and seamless project execution from concept to completion.
Today, PES is an integrated EPC (Engineering, Procurement, and Construction) partner built around responsiveness, clarity, and results. We deliver full-scope solutions without the red tape, combining engineering expertise, procurement control, and field execution into one accountable team.
At PES, our promise is simple: we do what we say and say what we do. Whether we’re designing systems, sourcing critical materials, or managing construction under pressure, we stand behind one outcome, guaranteed project success. Our core values drive every decision: be responsive AF, own your word, perform under pressure, and stay curious to find the best available outcome. That’s not just how we work, it’s who we are. Efficient. Accountable. Guaranteed.
Our Mission
To be the trusted solution provider that delivers responsive, accountable solutions - transforming complex engineering challenges into lasting value for our clients and partners.
Our Vision
To redefine what clients expect from an EPC by proving that agile and focused beats big and slow.
