Meet the principals who drive the practice forward – leading the way with a fine-tuned understanding of client needs and emphasis on nurturing strong relationships.

Our executive team is seasoned and serious about making infrastructure work harder for clients, their stakeholders and the communities they serve.

Eric T. Overton, President and Chief Executive Officer, is a visionary leader with unbridled enthusiasm to match market needs with the best, brightest talent and technologies. His future-forward approach keeps people attuned to what’s next while applying relevant insight "in the now."

James R. Duncan, Chairman and Chief Engineer, delivers a decades-long track record of breakthrough thinking and highly refined technical skill set for the benefit of clients and team members alike.

Arne R. Berger, Vice President and Chief Financial Officer, fervently pursues operating practices and enterprise systems that enhance the firm’s ability to deliver a client experience like no other.

Thomas A. Leonidas, Vice President, brings passion and laser-focus to our healthcare practice. He speaks and writes regularly within the industry, helping to shape the future of engineering for medical facilities.

Jeffrey S. Hankin, Principal, leads our San Diego Office, taking on new initiatives, like developing a strong presence in southern California, with a missionary zeal equal to his depth of expertise. His incredible market leadership skills and service ethic set him apart.

Troy W. Thrun, Principal, enjoys the complexity of working across market categories. His agility is best expressed in an unmatched ability to exceed the expectations of some of the biggest brands on the planet.

Robert A. Prichard, Principal and Technology Practice Leader, is a creative problem solver, strategic thinker and a dynamic technology business leader charged with leading and developing Sparling's technology practice.

Full biographical sketches and contact information for the executive committee and all firm principals follow.

Bios