David Koos

David Raymond Koos was the founder of Entest Group, Inc. (founded in 2008) where he held the titles of Chairman, President, CEO, CFO & Secretary from 2009 to 2018.
He is currently the Chairman, President, CEO, Secretary & Treasurer at Kcl Therapeutics, Inc. (since 2021), Chairman & Chief Executive Officer at BST Partners, Inc. (since 2018), Chairman, Chief Executive & Financial Officer at Regen Biopharma, Inc. (since 2012), President & Managing Director at Venture Bridge, Inc. (since 2001), President, Managing Director & Director at Cell Source Research, Inc. (since 2003), and a Trustee at BMXP Holdings Shareholders Business Trust and AFN Trust.
In his former positions, Dr. Koos served as President & Chief Executive Officer at Tasco Holdings International, Inc. in 2006, Chairman, Chief Executive Officer, CFO & Secretary at Frezer, Inc. from 2005 to 2007, President, CEO, CFO, Secretary & CAO at JB Clothing Corp.
in 2009, Chairman, CEO & Acting Chief Financial Officer at BMXP Holdings, Inc. from 2004 to 2008, Chairman, President, CEO, CFO & Secretary at Rivulet Media, Inc. from 2006 to 2019, and Chairman & Chief Executive Officer at Zander Therapeutics, Inc. from 2015 to 2020.
He also held positions at Freedom Environmental Services, Inc., BEFUT International Co. Ltd., Entest BioMedical, Inc., BST Partners, Inc. (Wyoming), and Cell Bio-Systems, Inc.Dr. Koos obtained a graduate degree from the University of California, Riverside in 1983 and a doctorate degree from Atlantic International University in 2003.