Arthur D. Sams

Chairman of the Board, President & Chief Executive Officer

Arthur D. Sams has served as our President, Chief Executive Officer and Chairman of our Board since August 1991 and as our Secretary since October 2016. Under his leadership, we have grown to be a leading brand name in the design and manufacturing of DC power systems for the telecommunications, military, automotive, marine and industrial markets. He specializes in the design of thermodynamics and power generation systems. During his early career, he gained vast industry experience while working as a machinist, engineer, project manager, chief technical officer and consultant for various Fortune 500 companies and the U.S. Department of Defense and the U.S. Department of Energy. Mr. Sams studied at California State Polytechnic University Pomona and the University California at Irvine with a dual major in biology and engineering.

Keith Albrecht


Keith Albrecht has served as a member of our Board since May 2016 and serves as a member of each of our Audit Committee, Compensation Committee and Nominating and Corporate Governance Committee. Mr. Albrecht has extensive experience as a commercial real estate appraiser for commercial banks and local governments. Mr. Albrecht was an appraiser for commercial buildings for the County of Orange, California, from 1996 to 2007, where he was responsible for the assessment of property values of shopping malls, office buildings, hotels and apartment buildings. Prior thereto, Mr. Albrecht was an appraiser for Security Pacific Bank and Bank of America, from 1985 to 1996. Mr. Albrecht is currently retired and invests in startups and small cap companies.

Katherine Koster


Since 2008, Ms. Koster has served as Managing Director – Public Finance at Piper Jaffray & Co. where she assists municipalities in accessing the capital markets to fund critical infrastructure. Ms. Koster holder a Bachelor of Arts Degree in Theater/Business Administration from Pepperdine University and has completed the “Women in Governance: Preparing for Board Membership” corporate governance program at the UCLA Anderson School of Management. Ms. Koster holds Series 7 and Series 24 licenses issued by the Financial Industry Regulatory Authority, Series 50 and Series 53 licenses issued by the Municipal Securities Rulemaking Board and a Series 63 certificate issued by the North American Securities Administrators Association.