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Anthony Tudor St John
Chairman at
INTEGRATED DIAGNOSTICS HOLDINGS PLC
Net worth: 201 732 $ as of 31/05/2026
Profile
Anthony Tudor St John currently works at Strand Hanson Ltd., as Deputy Chairman, SOCOTEC Certification United Kingdom Ltd., as Chairman-Governing Board, Integrated Diagnostics Holdings Plc, as Independent Non-Executive Chairman from 2015, and various other companies.
Mr. St John also formerly worked at East Balkan Properties Plc, as Chairman, Real Office Group Plc, as Chairman, Estates & General Ltd., as Non-Executive Chairman, and various other companies.
Mr. St John received his undergraduate degree from the University of Cape Town, graduate degree from London School of Economics & Political Science, and graduate degree from the University of South Africa.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
YELLOW CAKE PLC 0.01% | 31/03/2025 | 26,302 ( 0.01% ) | 201 732 $ | 31/05/2026 |
Anthony Tudor St John active positions
| Companies | Position | Start |
|---|---|---|
| INTEGRATED DIAGNOSTICS HOLDINGS PLC | Chairman | 12/01/2015 |
| GULF MARINE SERVICES PLC | Director/Board Member | 26/05/2021 |
| YELLOW CAKE PLC | Chairman | 01/06/2018 |
Falcon Trade Corp.
 Falcon Trade Corp. Miscellaneous Commercial ServicesCommercial Services Provides financial and logistical solutions for cross-border trade | Director/Board Member | - |
Betway Ltd. | Director/Board Member | - |
Cognosec Ltd. | Director/Board Member | - |
ECO Capacity Exchange Ltd. | Director/Board Member | - |
Impala Energy Management Ltd. | Director/Board Member | - |
Rados International Services Ltd. | Director/Board Member | - |
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Former positions of Anthony Tudor St John
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Training of Anthony Tudor St John
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
72
1st degree connections
52
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 52 |
|---|---|
Enwell Energy Plc
 Enwell Energy Plc Oil & Gas ProductionEnergy Minerals Explores and mines for oil and gas | Energy Minerals |
East Balkan Properties Plc
 East Balkan Properties Plc Financial ConglomeratesFinance Provides property investment services | Finance |
Real Office Group Plc
 Real Office Group Plc Miscellaneous Commercial ServicesCommercial Services Acquires and manages office fit-out businesses | Commercial Services |
Woodbois Services Ltd
 Woodbois Services Ltd Other Metals/MineralsNon-Energy Minerals Explores and develops metal & minerals | Non-Energy Minerals |
Tennor Holding BV
 Tennor Holding BV Investment ManagersFinance Tennor Holding BV operates as an investment company with interests in technology, industrial, natural resources, media, entertainment, sports, retail, and real estate. The company was founded by Lars Windhorst and is headquartered in Amsterdam, the Netherlands. | Finance |
Estates & General Ltd.
 Estates & General Ltd. Real Estate DevelopmentFinance Provides real estate investment services | Finance |
Spiritel Ltd.
 Spiritel Ltd. Wireless TelecommunicationsCommunications Provides voice and data telecommunications services | Communications |
University of Cape Town
 University of Cape Town Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
London School of Economics & Political Science
 London School of Economics & Political Science Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
University of South Africa
 University of South Africa Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Pecaso UK Ltd.
 Pecaso UK Ltd. Packaged SoftwareTechnology Services Provides software solutions | Technology Services |
Falcon Trade Corp.
Falcon Trade Corp. Miscellaneous Commercial ServicesCommercial Services Provides financial and logistical solutions for cross-border trade | Commercial Services |
Albion Enterprise VCT PLC
 Albion Enterprise VCT PLC Investment Trusts/Mutual FundsMiscellaneous Acts as Venture Capital Fund | Miscellaneous |
CarbonDesk Group Plc
 CarbonDesk Group Plc Investment Banks/BrokersFinance Provides carbon credit brokerage services | Finance |
Albion Capital Group LLP
 Albion Capital Group LLP Investment ManagersFinance Albion Ventures invests in companies located in the United Kingdom. The firm targets companies operating in the fields of deeptech, software, healthcare, and infrastructure. It provides financing for pre-seed to growth stage capital requirements. | Finance |
Globix Corp.
 Globix Corp. Internet Software/ServicesTechnology Services Provides internet hosting and infrastructure services | Technology Services |
The Falcon Group Ltd.
 The Falcon Group Ltd. Financial ConglomeratesFinance Operates as a dormant company | Finance |
Woodbois Ltd.
 Woodbois Ltd. Forest ProductsNon-Energy Minerals Produces and wholesales sourced hardwood products & restore tree cover | Non-Energy Minerals |
House of Lords
 House of Lords General GovernmentGovernment Provides judicial services | Government |
Strand Hanson Ltd.
 Strand Hanson Ltd. Investment Banks/BrokersFinance Provides brokerage services | Finance |
Estate & General (Isle of Man) Ltd. | |
SOCOTEC Certification United Kingdom Ltd.
 SOCOTEC Certification United Kingdom Ltd. Miscellaneous Commercial ServicesCommercial Services Provides management systems assessment and accredited ISO certification services | Commercial Services |
Integrated Diagnostics Holdings Plc
 Integrated Diagnostics Holdings Plc Hospital/Nursing ManagementHealth Services Owns and operates medical laboratories | Health Services |
AfBuSo (Pty) Ltd. | |
Eurotrust International Ltd. | |
GRIT Investment Trust Plc
 GRIT Investment Trust Plc Investment Trusts/Mutual FundsMiscellaneous Operates as an investment trust | Miscellaneous |
Gulf Marine Services PLC
 Gulf Marine Services PLC Oilfield Services/EquipmentIndustrial Services Engages in oil and gas services | Industrial Services |
Afrika Tikkun UK
 Afrika Tikkun UK Miscellaneous Commercial ServicesCommercial Services Operates as a non-profit organization which provides child, youth and career development services | Commercial Services |
Alexandra Rose Charities Ltd.
 Alexandra Rose Charities Ltd. Investment Trusts/Mutual FundsMiscellaneous Operates a charitable organisation | Miscellaneous |
Hunter Gibson LLP | |
Christel House Europe | |
Cyber Security 1 AB
 Cyber Security 1 AB Electronics DistributorsDistribution Services Engages in cyber security products | Distribution Services |
HSBC Innovation Bank Ltd.
 HSBC Innovation Bank Ltd. Regional BanksFinance Provides banking services | Finance |
Sharp Interpak | |
Cognosec Ltd. | |
Roc Technologies Ltd.
 Roc Technologies Ltd. Information Technology ServicesTechnology Services Provides transformative business and technology services | Technology Services |
Yellow Cake Plc
 Yellow Cake Plc Other Metals/MineralsNon-Energy Minerals Operates as an uranium mining company | Non-Energy Minerals |
Smithson Investment Trust PLC
 Smithson Investment Trust PLC Investment Trusts/Mutual FundsMiscellaneous Functions as a closed-end investment fund or Investment trust | Miscellaneous |
ECO Capacity Exchange Ltd. | |
17 Arm Recovery UAE FZ LLC | |
Bell Integration Ltd. | |
Betway Ltd. | |
Impala Energy Management Ltd. | |
Rados International Services Ltd. | |
Wet Holdings (Global) Ltd.
 Wet Holdings (Global) Ltd. Water UtilitiesUtilities Provides water enhancing technology | Utilities |
GMS Resources Ltd.
 GMS Resources Ltd. Construction MaterialsNon-Energy Minerals Engages in mining and quarrying activities | Non-Energy Minerals |
Certification International Ltd.
 Certification International Ltd. Miscellaneous Commercial ServicesCommercial Services Provides professional, scientific and technical services | Commercial Services |
Tyvak Orbital Networks Ltd. | |
Kneoworld Uk Ltd. | |
Empati Ltd. | |
Geobear Ltd. | |
Airport Holdings Ltd. (Mauritius)
 Airport Holdings Ltd. (Mauritius) AirlinesTransportation Operates as an holding company whose subsidiaries provides air transportation services | Transportation |
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