Ramsdens Holdings PLC is a provider of financial services and retailer. Its segments include foreign currency exchange, pawnbroking loans, precious metals buying and selling and retailing of second hand and new jewellery.

Real Estate Investors PLC is a real estate investment firm based in the United Kingdom. It invests across a diverse range of properties such as offices, residential land, and new lettings.

Redcentric Plc provides information technology managed services to various industries and applications. The company's services offering includes application, collaboration, infrastructure, network, mobile and IT security services.

Redde plc and Northgate plc merged in February 2020 to create Redde Northgate plc. Their core business is the hire of light commercial vehicles to businesses on a flexible and term basis, giving customers the ability to manage their vehicle fleet requirements without a long term commitment (Northgate). Redde works predominantly with insurance companies, brokers, motor dealerships and large national fleet owners and is a market leader in the provision of a range of accident management, incident management and legal services.

ReNeuron Group PLC is a biotechnology firm. Its principal business involves the research and development of stem cell technology for the treatment of motor disabilities and blindness-causing diseases.

Restore PLC provides services to offices and workplaces in private and public sectors. It has two segments document management and relocation.

Rockfire Resources plc is an Australian-focused gold and copper exploration company with mineral assets in Queensland. Rockfire has three medium-grade, near-surface gold prospects, positioned amongst multi-million ounce gold deposits. All of our gold prospects lie within 50km of operating gold processing plants. The Company's two porphyry copper prospects are set for expansion and lie within 250km of Australia's largest copper refinery. Rockfire has multiple opportunities for discovery within its extensive portfolio of well-focused tenements.

RSM is a multi-national network of accounting firms, forming the fifth largest accountancy professional services network in the world. The member firms of RSM are independent accounting and advisory firms each of which practices in its own right, and is unified as part of the network.

RTC Group PLC, through its subsidiaries, is engaged in the recruitment of human capital resources and the provision of managed services. The Company serves industries in both domestic and international markets.

Aortech International Plc through its subsidiary is engaged in the development, exploitation & commercialization of biomedical polymer technology, components and medical devices.

Rurelec PLC is an owner, developer and operator of power generation capacity. Its current businesses include an operational plant in Argentina and a power plant development in Chile.