Meet the Team
PSI’s senior management team has invested their careers in building a world class technology development organization. We started as scientists and continue to do science. That’s our culture.
Dave Green - CEO
Dr. Green has participated in the growth of the Physical Sciences Inc. for 45 years, emphasizing technical excellence in program performance, and focusing on aggressive technology maturation to enable its rapid, successful transition to fulfill the needs of our government and commercial customers.
Bill Marinelli - President and Chief Operating Officer
Bill Marinelli came to PSI from a postdoctoral position at Cornell University after receiving a PhD in Physical Chemistry from the University of California, Berkeley. At PSI his research activities ranged from upper atmospheric chemistry and chemical kinetics to spectral imaging technologies supporting chemical, biological, radiological, nuclear, and explosives defense. As a senior manager he had oversight responsibilities for many of PSI’s efforts in materials development, tactical imaging, energy and propulsion technology, and nuclear detection. In his current role as President and Chief Operating officer he leads PSI corporate business planning activities while having direct oversight of technology transition within its Applications Division.
Steve Genestreti - Chief Financial Officer
Steve joined PSI in 1990 with a background in high tech manufacturing and an MBA from Babson College. Steve oversees PSI’s financial and administrative management, including Finance and Accounting, HR, Legal, Tax and Treasury functions.
Mark Allen - Executive Vice President, Optical Systems
Mark joined PSI with a fresh PhD from Stanford in 1987 and began developing programs and products in advanced laser-based sensing. As EVP, Optical Systems, he contributes to and manages activities ranging from discovery science in optical metamaterials to ophthalmology instrumentation production.
Pete Warren - Executive Vice President, Material Systems
Pete received his Ph.D. from the University of Colorado at Boulder, in Aerospace Engineering. At PSI,Pete leads the Materials Systems Enterprise, a group involved in advanced materials, chemistries, and processes at levels ranging from fundamental chemistry to finished, mission-ready components.
Our corporate organization is designed to efficiently harness the capabilities of the entire corporation, including subsidiaries, in addressing the complex, multi-disciplinary problems of our customers. Within PSI, vibrant technology areas are headed by the scientists and engineers that built them. We have a broad base of core competencies and combine them across the organizational charts to develop solutions.