David Koos

David Koos

Chief Executive Officer at REGEN BIOPHARMA, INC.

Net worth: 4 959 $ as of 2026-06-29

66 year
Health Technology
Consumer Services
Finance

Profile

David Raymond Koos was the founder of Entest Group, Inc., founded in 2008, where the titles held included Chairman, President, CEO, CFO & Secretary from 2009 to 2018.
Current jobs include Chairman, President, CEO, CFO & Secretary at Regen Biopharma, Inc. since 2012; Chairman, President, CEO, Secretary & Treasurer at Kcl Therapeutics, Inc. since 2021; Chairman & Chief Executive Officer at BST Partners, Inc. since 2018; President & Managing Director at Venture Bridge, Inc. since 2001; President, Managing Director & Director at Cell Source Research, Inc. since 2003; Trustee at BMXP Holdings Shareholders Business Trust; and Trustee at AFN Trust.
Former jobs include 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; Chairman & Chief Executive Officer at Freedom Environmental Services, Inc.; Chairman & Chief Executive Officer at BEFUT International Co. Ltd.; Chairman, President, CEO, CFO & Secretary at Entest BioMedical, Inc.; Chairman & Chief Executive Officer at Zander Therapeutics, Inc. from 2017 to 2020; Chairman, President, CEO, Secretary & Treasurer at SYBLEU, Inc. from 2020 to 2022; Chairman & Chief Executive Officer at BST Partners, Inc. (Wyoming); and Chairman, Chief Financial Officer & Secretary at Cell Bio-Systems, Inc. in 2003.
Education includes a graduate degree from the University of California, Riverside in 1983 and a doctorate from Atlantic International University in 2003.

Known holdings in public companies

CompanyDateNumber of sharesValuationValuation date
2025-11-09 826,576 ( 0.53% ) 4 959 $ 2026-06-29
2025-11-09 334 ( 100% ) - $ 2026-06-29
2025-11-09 7,667 ( 26.13% ) - $ 2026-06-29
2025-11-09 27,436,799 ( 5.36% ) - $ 2026-06-29
2025-11-09 15,007 ( 100% ) - $ 2026-06-29

David Koos active positions

CompaniesPositionStart
REGEN BIOPHARMA, INC. Chief Executive Officer 2012-04-23
BST Partners, Inc.
Chief Executive Officer 2018-11-29
Kcl Therapeutics, Inc.
Chief Executive Officer 2021-03-22
AFN Trust
Director/Board Member -
BMXP Holdings Shareholders Business Trust
Director/Board Member -
Cell Source Research, Inc.
Chief Executive Officer 2003-03-23
Venture Bridge, Inc.
Chief Executive Officer 2001-11-20

Former positions of David Koos

CompaniesPositionEnd
SYBLEU INC. Chief Executive Officer 2022-12-12
Chief Executive Officer 2020-01-21
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See the detail of David Koos's experience

Training of David Koos

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

Connections

15

1st degree connections

22

1st degree companies

Male

Female

Members of the board

Executives

Linked companies

Private companies22

Health Technology

Finance

Health Technology

BMXP Holdings Shareholders Business Trust

Retail Trade

Health Technology

Consumer Services

Health Technology

Consumer Services

Commercial Services

Producer Manufacturing

Health Technology

Finance

Venture Bridge, Inc.

Cell Source Research, Inc.

AFN Trust

Consumer Services

Health Technology

Commercial Services

Kcl Therapeutics, Inc.

BST Partners, Inc.

BST Partners, Inc. (Wyoming)