David Barrett
Founder at SIGMAROC PLC
Net worth: 3 M $ as of 2024-04-29
Profile
David Kenneth Barrett is the founder of London Concrete Ltd (founded in 1997) and Sigmaroc Plc (founded in 2004), where he holds the title of Executive Chairman.
Currently, Mr. Barrett is a Director at GDH (Holdings) Ltd., Thames Recycling Ltd., SigmaFin Ltd., Capital Concrete Ltd., and Thames Aggregates Ltd.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
SIGMAROC PLC
0.31% | 2023-12-30 | 3,434,180 ( 0.31% ) | 3 M $ | 2024-04-29 |
David Barrett active positions
| Companies | Position | Start |
|---|---|---|
| SIGMAROC PLC | Founder | 2004-08-11 |
Thames Recycling Ltd.
 Thames Recycling Ltd. TruckingTransportation Thames Recycling Ltd. is a British waste management company founded in 2012. The private company is based in Bromley, UK. The company provides non-hazardous waste collection services. | Director/Board Member | 2013-09-30 |
SigmaFin Ltd.
 SigmaFin Ltd. Financial ConglomeratesFinance Part of Sigmaroc Plc, SigmaFin Ltd. is an investment holding British company. The company is based in London, UK and was founded in 2017. | Director/Board Member | 2017-08-16 |
GDH (Holdings) Ltd.
 GDH (Holdings) Ltd. Financial ConglomeratesFinance GDH (Holdings) Ltd. is an investment holding British company founded in 2011. The private company is based in Narberth, UK. The company's main function is to hold investments. | Director/Board Member | 2019-04-17 |
Capital Concrete Ltd.
 Capital Concrete Ltd. Construction MaterialsNon-Energy Minerals Part of Robert Brett & Sons Ltd., Capital Concrete Ltd. is a manufacturer of concrete products. The company is based in Aylesford, UK. The British company was founded in 1909. The CEO is Luke Smith. | Director/Board Member | - |
| Thames Aggregates Ltd. | Director/Board Member | - |
Former positions of David Barrett
| Companies | Position | End |
|---|---|---|
London Concrete Ltd
 London Concrete Ltd Construction MaterialsNon-Energy Minerals Part of Holcim Ltd., London Concrete Ltd supplies construction and building materials. The company is based in Markfield, UK. London Concrete was acquired by Aggregate Industries UK Ltd. on January 01, 1998. The British company was founded in 1997 by David Kenneth Barrett. | Founder | - |
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Listed companies | 1 |
|---|---|
| SIGMAROC PLC | Non-Energy Minerals |
| Private companies | 6 |
|---|---|
London Concrete Ltd
London Concrete Ltd Construction MaterialsNon-Energy Minerals Part of Holcim Ltd., London Concrete Ltd supplies construction and building materials. The company is based in Markfield, UK. London Concrete was acquired by Aggregate Industries UK Ltd. on January 01, 1998. The British company was founded in 1997 by David Kenneth Barrett. | Non-Energy Minerals |
Thames Recycling Ltd.
Thames Recycling Ltd. TruckingTransportation Thames Recycling Ltd. is a British waste management company founded in 2012. The private company is based in Bromley, UK. The company provides non-hazardous waste collection services. | Transportation |
SigmaFin Ltd.
SigmaFin Ltd. Financial ConglomeratesFinance Part of Sigmaroc Plc, SigmaFin Ltd. is an investment holding British company. The company is based in London, UK and was founded in 2017. | Finance |
GDH (Holdings) Ltd.
GDH (Holdings) Ltd. Financial ConglomeratesFinance GDH (Holdings) Ltd. is an investment holding British company founded in 2011. The private company is based in Narberth, UK. The company's main function is to hold investments. | Finance |
Capital Concrete Ltd.
Capital Concrete Ltd. Construction MaterialsNon-Energy Minerals Part of Robert Brett & Sons Ltd., Capital Concrete Ltd. is a manufacturer of concrete products. The company is based in Aylesford, UK. The British company was founded in 1909. The CEO is Luke Smith. | Non-Energy Minerals |
| Thames Aggregates Ltd. |
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