Si2 Staff

Si2 is comprised of members which, under the protection of the National Cooperative Research and Production Act, cooperate to solve EDA interoperability issues. Si2 staff members have an important role understanding Si2 policies and procedures and helping guide member projects.

John Ellis

President and CEO

Marshall Tiner


Production Standards

Jerry Frenkil



Dr. Leigh Anne Clevenger

Senior Data Scientist

Terry Berke

Member Services Manager

Sandy Lawrence

Accounting and Office Manager

Phillip Isenhart

Computer and Information Systems Manager

Matthew Wheaton

Senior Programmer