Charles Alutto

Shred-it Ltd. provides paper shredding as well as hard drive and electronic media destruction services. It offers paper shredding and hard drive destruction services. It is an information security company providing information destruction services that ensure the security and integrity of the company's clients'' private information. The company was founded by Greg Brophy in 1988 and is headquartered in Sale, the United Kingdom.

SRCL Ltd. provides regulated medical waste management services to the public and private sector. Its origins are in healthcare waste, the firm now offers much more, such as: patient transport, patient communications, healthcare courier services, compliance tools and training. The company was founded in and is headquartered in Leeds, the United Kingdom.

Part of Stericycle, Inc., Stericycle International Ltd. operates as an investment holding British company. The private company is based in Leeds, UK.

Pronto Connections, Inc. engages in providing call center services. The company is headquartered in Chicago, IL.

Part of Stericycle, Inc., Stericycle Europe SARL is a private company based in Luxembourg, Luxembourg.

Part of Stericycle, Inc., Stericycle International Holdings Ltd. is an investment holding British company. The private company is based in Leeds, UK and was founded in 2011.

Road Safety Services, Inc. is an American prominent company that provides a diverse set of pavement marking and other road safety-related services. The company is based in the United States and has subsidiaries in 15 states across the Midwest, Atlantic, and Southwest regions. The company has successfully grown through acquisitions and organic means, and it offers industry-leading support and resources to its pavement marking and traffic control companies across the country. Road Safety Services was founded in 2017 by Michael Johnson, who has been the CEO since then.

Sierra Lake Acquisition Corp. operates as a blank check company. It was formed for the purpose of effectuating a merger, capital stock exchange, asset acquisition, stock purchase, reorganization, or other similar business combination with one or more businesses. The company was founded on January 26, 2021 and is headquartered in Chicago, IL.