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Stephen O'Hara
Founder at
OPTIBIOTIX HEALTH PLC
Net worth: 1 M $ as of 2026-06-29
Profile
Stephen Patrick O'Hara was the founder of Acolyte Biomedica Ltd. (founded 2000) where the title held was Microbiology Director from 2000 to 2007.
Founder of OptiBiotix Health Plc (founded 2006) holding the title Chief Executive Officer & Executive Director since 2014.
Founder of Intelligent Biotech Ltd. (founded 2011).
Founder of Optibiotix Ltd. (founded 2012) holding the title Chief Executive Officer & Director since 2023.
Founder of SkinBioTherapeutics Plc (founded 2015) where the title Non-Executive Director was held from 2017 to 2019.
Founder of Probiotix Ltd. (founded 2018).
Founder of ProBiotix Health Plc (founded 2018) holding the title Non-Executive Director.
Former jobs include Microbiology Director at 3M Co. from 2007 to 2009, Commercial Director at Taunton & Somerset NHS Foundation Trust General Charitable Fds from 2009 to 2011, and Director at The Healthy Weight Loss Co. Ltd. from 2016 to 2023.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-05-26 | 10,212,986 ( 9.89% ) | 867 491 $ | 2026-06-29 | |
ProBiotix Health Plc
 ProBiotix Health Plc Pharmaceuticals: OtherHealth Technology Operates as a holding company with interest in developing probiotics to tackle cardiovascular disease and other lifestyle conditions 3.88% | 2026-03-26 | 6,131,450 ( 3.88% ) | 515 226 $ | 2026-06-29 |
Stephen O'Hara active positions
| Companies | Position | Start |
|---|---|---|
| OPTIBIOTIX HEALTH PLC | Founder | 2006-06-18 |
ProBiotix Health Plc
ProBiotix Health Plc Pharmaceuticals: OtherHealth Technology Operates as a holding company with interest in developing probiotics to tackle cardiovascular disease and other lifestyle conditions | Founder | 2017-12-31 |
Optibiotix Ltd.
 Optibiotix Ltd. BiotechnologyHealth Technology Develops biological products for digestive health | Founder | 2012-05-14 |
Former positions of Stephen O'Hara
| Companies | Position | End |
|---|---|---|
The Healthy Weight Loss Co. Ltd.
 The Healthy Weight Loss Co. Ltd. Medical/Nursing ServicesHealth Services Provides health care services | Director/Board Member | 2023-12-18 |
| SKINBIOTHERAPEUTICS PLC | Founder | 2019-07-03 |
Taunton & Somerset NHS Foundation Trust General Charitable Fds
 Taunton & Somerset NHS Foundation Trust General Charitable Fds Medical/Nursing ServicesHealth Services Provides health care services | Corporate Officer/Principal | 2010-12-31 |
| 3M COMPANY | Corporate Officer/Principal | 2008-12-31 |
Acolyte Biomedica Ltd.
 Acolyte Biomedica Ltd. Miscellaneous Commercial ServicesCommercial Services Develops, manufactures, and markets microbiology and cell enumeration systems | Founder | - |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
33
1st degree connections
10
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 10 |
|---|---|
3M Co.
 3M Co. Industrial ConglomeratesProducer Manufacturing Manufactures personal safety, industrial adhesives, automotive, aerospace and defense, data center & networks, electronics, and semiconductor & abrasives | Producer Manufacturing |
Acolyte Biomedica Ltd.
Acolyte Biomedica Ltd. Miscellaneous Commercial ServicesCommercial Services Develops, manufactures, and markets microbiology and cell enumeration systems | Commercial Services |
Optibiotix Ltd.
Optibiotix Ltd. BiotechnologyHealth Technology Develops biological products for digestive health | Health Technology |
Optibiotix Health Plc
 Optibiotix Health Plc BiotechnologyHealth Technology Develops biological products for digestive health | Health Technology |
Taunton & Somerset NHS Foundation Trust General Charitable Fds
Taunton & Somerset NHS Foundation Trust General Charitable Fds Medical/Nursing ServicesHealth Services Provides health care services | Health Services |
The Healthy Weight Loss Co. Ltd.
The Healthy Weight Loss Co. Ltd. Medical/Nursing ServicesHealth Services Provides health care services | Health Services |
Intelligent Biotech Ltd. | |
SkinBioTherapeutics Plc
 SkinBioTherapeutics Plc Pharmaceuticals: OtherHealth Technology Develops and sells probiotic food supplements and skincare ingredients for the cosmetics industry | Health Technology |
Probiotix Ltd.
 Probiotix Ltd. Food RetailRetail Trade Retails and wholesales health foods | Retail Trade |
ProBiotix Health Plc
ProBiotix Health Plc Pharmaceuticals: OtherHealth Technology Operates as a holding company with interest in developing probiotics to tackle cardiovascular disease and other lifestyle conditions | Health Technology |
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