Layton Tamberlin

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.

Tivoli Group Ltd. provides public maintenance services. The company 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.

Part of Egbert Taylor Group Ltd., Egbert Taylor Management Ltd. operates as a holding British company for its subsidiaries which manufacture and lease waste containers. The company is based in Manchester, UK.

Part of Amistha Midco Ltd., Amistha Bidco Ltd. functions as a financier to group companies. The company is based in London, UK. Founded in 2012.

Part of Appleseed Investments LLP, Medica Packaging is a British UK-based company founded in 2014. The company specializes in designing and manufacturing cartons and Point of Sale (POS) packaging for products in the pharmaceutical, healthcare, and regulated markets. The company is committed to working in an environmentally friendly manner and are the largest packaging converter in the pharmaceutical and healthcare sectors. Medica Packaging produces high-quality printed cartons and PILS for customers in these markets.

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.

Taylor Asset Management Ltd is a waste container fleet management company based in London, UK. Taylor Asset Management Ltd provides waste container fleet management services. The British company was founded in 2016.

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.