Layton Tamberlin

TDR Capital LLP (TDR Capital) is a private equity subsidiary of Tudor Investment Corp. founded in 2002 by Manjit Dale and Stephen James Robertson. The firm is headquartered in London, the United Kingdom.

Orbis Plc provides integrated property and security services. It offers asset protection, property clearance and cleanup, regeneration, risk management and emergency call center services. The company was founded in 1981 and is headquartered in Uxbridge, UK.

Ignis Investment Services Ltd. (IIS) is the asset management subsidiary of Ignis Asset Management Ltd., ultimately held by abrdn Plc (LON: ABDN, ADR: SLFPY) in Great Britain. Headquartered in Edinburgh, the firm was formed following the 2008 merger of Resolution Asset Management and Axial Investment Management. They can trace their origins since 1986. IIS offered tailor-made and pooled solutions for small- to medium-sized pension schemes. Their clients include large corporate pension schemes, charities and life companies along with other strategic partners. They cater to UK retail, institutional and international clients.

Sullivan Street Partners Ltd (Sullivan Street Partners) is a private equity firm founded in 2010 by Layton Tamberlin and Richard Sanders. The firm is headquartered in London, United Kingdom.

Sameday Doctor Holdings LLP provides medical care services. Its services include private doctor, human immunodeficiency virus and sexually transmitted diseases, and vaccinations. The company was founded by Laurence Gerlis and Pauline Gerlis in 2003 and is headquartered in London, the United Kingdom.

Egbert Taylor Group Ltd. is a British company that manufactures metal waste containers. The private company is based in Manchester, UK. and has subsidiaries in United Kingdom. Egbert Taylor Group was founded in 2011.

Tivoli Group Ltd. provides public maintenance services. The company is headquartered in London, the United Kingdom.

Octavius Infrastructure Ltd. is a British company that collaborates with customers and partners to provide safe and efficient transport networks. The company is based in Reigate, UK, and has subsidiaries in the United Kingdom. The company works closely with their customers to deliver assured, sustainable, and efficient transport outcomes. The company was founded in 1966, and John Vincent Dowsett has been the CEO of the company since 2021. Octavius Infrastructure was acquired by Sullivan Street Partners Ltd. from Geoffrey Osborne Ltd. on September 10, 2021.

Celsus Group Ltd. is a recruitment agency that connects clinicians with healthcare systems in the United Kingdom. The British company offers exceptional care and have placed over 20,000 clinicians working over 1 million shifts consulting with over 250,000 patients. Celsus Group places nurses, doctors, and AHPS and has one of the UK's biggest recruitment agencies. The company has several brands, including The Nursing Agency (TNA) Medical, which delivers exceptional framework, off-cap nurses, and 111 Lifeline, which provides high-quality, compliant, and experienced doctors. The company has a great working environment and rewards staff for hitting targets. The company was founded in 2008 and has subsidiaries in the UK.