
Angel Trains is a British rolling stock company (ROSCO) established in April 1994 as part of the privatisation of British Rail. Together with Eversholt Rail Group and Porterbrook, it is one of the three original ROSCOs.

British American Railway Services (BARS) was a British locomotive and spot hire company. It was a subsidiary of Iowa Pacific Holdings.

CIT Group Inc. (CIT) is an American financial holding company and bank holding company incorporated in Delaware and headquartered in New York City. CIT Bank, CIT's banking subsidiary, is headquartered in Pasadena, California. The company's name is an initialism of an early corporate name, Commercial Investment Trust.

Citicorp Railmark Inc. is a company that leases locomotives to railroads as needed. The company is a subsidiary of Citibank, which itself is a division of Citigroup. It was formerly known as Citicorp Aerolease, and was first formed on May 13th, 1970.

Siemens Dispolok Ltd. was a locomotive leasing company wholly owned by Siemens Transportation Systems offering locomotives for hire to European rail operators. On 21 September 2006 it was bought by Mitsui Rail Capital Europe BV (MRCE) a subsidiary of the Japanese conglomerate Mitsui & Co. Ltd..
Europhoenix is a spot-hire railway locomotive company in England. As well as hiring out locomotives to other operators in the United Kingdom, it has overhauled former British Rail locomotives for operators in Bulgaria and Hungary.

Eversholt Rail Group is a British rolling stock company (ROSCO) established in April 1994 as part of the privatisation of British Rail. Together with Angel Trains and Porterbrook, it is one of the three original ROSCOs.

Wells Fargo Rail is the new name for the historic First Union Rail Corporation, along with the combined business of the former GE Capital Rail Services, which Wells Fargo purchased from GE in September 2015. The new company/name took effect January 1, 2016, and is based in Rosemont, Illinois, USA. Wells Fargo Rail is the largest railcar and locomotive leasing company in North America with over 175,000 railcars and 1,800 locomotives available.

GATX Corporation is an equipment finance company based in Chicago, Illinois. Founded in 1898, GATX's primary activities consist of railcar operating leasing in North America and Europe. In addition, GATX leases locomotives in North America, and also has significant investments in industrial equipment. The CEO/Chairman is Brian A. Kenney.

GE Capital Rail Services, also known as GE Railcar, or GE Railcar Services Corporation was a business unit of GE Capital, a division of General Electric. It is a distinct business unit from General Electric's railway locomotive manufacturer.

Hanson Traction Ltd was a locomotive leasing company based at Washwood Heath, Birmingham, West Midlands.

The Harry Needle Railroad Company (HNRC) is a railway spot-hire company, based at Barrow Hill Engine Shed in Derbyshire. Prior to 2010 the company also recovered valuable spares from scrapped railway vehicles, either on the vehicle owners site, or at the European Metal Recycling scrapyard in Kingsbury.

Juniata Terminal Co. is a locomotive leasing and railcar storage company. The company takes its name from the facility in Philadelphia from which it operates.
Mitsui Rail Capital (MRC) is a railways rolling stock leasing company and part of Mitsui & Co. based in Japan. Its main activities are the purchase and rental of railway freight cars and locomotives.

Railbox Company, founded in 1974, was created to address a boxcar shortage in the United States in the 1970s. It is a subsidiary of the Chicago-based TTX Company.

Railpool is a European rolling stock leasing company. Based in Munich, it was formed by HSH Nordbank and KfW IPEX-Bank in 2008 to offer passenger and freight locomotive and rolling stock financing and leasing, and also advice and services.

Sheltam is a locomotive hire and repair company that undertakes complete operating contracts and maintenance contracts, based in Port Elizabeth, South Africa. By the year 2000, Sheltam locomotives were operating at Randfontein Estates Gold Mine in Gauteng, and in Mpumalanga at Douglas and Vandyksdrift Collieries and at SAPPI, Ngodwana. They also operated on Spoornet’s Newcastle-Utrecht branch in KwaZulu-Natal and on Kei Rail in the Eastern Cape. Outside South Africa they operate on the Beitbridge Bulawayo Railway (BBR), NLL and Railway Systems of Zambia (RSZ) lines through Zimbabwe and Zambia and in the Democratic Republic of the Congo.

Tiphook PLC was a United Kingdom headquartered transport services company, registered on the London and New York stock markets, which became the world's second largest marine container leasing business in the 1990s. The Company was once a constituent of the FTSE 100 Index.

UK Rail Leasing (UKRL) is a railway company in Leicester offering locomotive leasing and rail vehicle engineering services.

Union Tank Car Company or UTLX "The Tank Car People" is a railway equipment leasing company headquartered in metro Chicago, Illinois. As the name says, they specialise in tank cars, and covered hopper cars. Repair shops and mobile repair units provide railcar maintenance services at more than 100 locations. As of September 2005, according to their site, they have about 80,000 cars in their fleet.

Wells Fargo Rail is the new name for the historic First Union Rail Corporation, along with the combined business of the former GE Capital Rail Services, which Wells Fargo purchased from GE in September 2015. The new company/name took effect January 1, 2016, and is based in Rosemont, Illinois, USA. Wells Fargo Rail is the largest railcar and locomotive leasing company in North America with over 175,000 railcars and 1,800 locomotives available.