
The GEO Group, Inc. (GEO), headquartered in Boca Raton, Florida, is a publicly traded real estate investment trust that invests in private prisons and mental health facilities in North America, Australia, South Africa, and the United Kingdom. The company's facilities include illegal immigration detention centers, minimum security detention centers, and mental-health and residential-treatment facilities. It also operates government-owned facilities pursuant to management contracts. As of December 31, 2019, the company managed and/or owned 95,000 beds at 129 facilities and provided community supervision services for more than 210,000 offenders and pretrial defendants. In 2019, agencies of the federal government of the United States generated 53% of the company's revenues.

Adelanto Detention Facility is a privately operated immigration detention center in Adelanto, San Bernardino County, California. Owned and operated by the GEO Group, it consists of two separate facilities: East, which was an existing prison purchased in June 2010 from the City of Adelanto with a capacity of about 600 inmates, and the newly built West expansion completed in August 2012 with another 700 beds. After an additional expansion in 2015, the facility's capacity houses up to 1,940 immigrant detainees of all classification levels, with the average stay of 30 days.

The Broward Transitional Center (BTC) is a for-profit detention center located in Pompano Beach, Florida. It is owned and operated by the GEO Group under a twenty-million-dollar plus annual contract with Immigration and Customs Enforcement (ICE), purposed to hold alleged illegal immigrants classified as "non-criminal and low security detainees."

The Oliver J. Bell Unit is a prison for men in Cleveland, Texas, privately operated by the Management and Training Corporation (MTC) on behalf of the Texas Department of Criminal Justice (TDCJ). The roughly 40-acre (16 ha) facility is .25 mi (0.40 km) north of downtown Cleveland. The TDCJ refers to the prison as the "Cleveland Unit", while GEO Group, the former operator, referred to it as the Cleveland Correctional Center. The facility is along U.S. Route 59.

Cornell Companies (NYSE:CRN) was an American corporation that operated correctional facilities, contracting them to state and local governments. The company's headquarters were located in Houston, Texas. On August 12, 2010, Cornell was acquired by the GEO Group.

Dungavel Immigration Removal Centre is an immigration detention facility in South Lanarkshire, Scotland, near the town of Strathaven that is also known as Dungavel Castle or Dungavel House. It is operated by the American private prison firm GEO Group, under contract with the law-enforcement command Border Force for its detention of immigrants for the Home Office. It is the only such facility in Scotland.

McPherson Unit is a prison for women of the Arkansas Department of Correction, located in Newport, Arkansas, off Arkansas Highway 384, 4 miles (6.4 km) east of central Newport. Established in 1998, the prison houses the state's death row for women.

Northwest Detention Center is a privately-run detention center located on the tide flats of the Port of Tacoma in Tacoma, Washington, USA. The detention center is operated by the GEO Group on behalf of the U.S. Immigration and Customs Enforcement. The NWDC's current capacity is 1575, making it one of the largest detention center in the United States. Numerous hunger strikes have been launched by inmates of the NWDC to protest the Center's poor conditions. Detainees have repeatedly reported overcrowding, a lack of medical attention, and severely unsanitary conditions, especially during COVID-19: "they're not even offering us soap."

The South Texas ICE Processing Center is a privately operated detention facility located in Pearsall, Frio County, Texas, run by the GEO Group to house detainees for the U.S. Immigration and Customs Enforcement.

On July 13, 2019, Willem van Spronsen firebombed a U.S. Immigration and Customs Enforcement (ICE) detention center in Tacoma, Washington. He was shot dead by police who say he was attempting to ignite a propane tank.