The Bolsover Colliery Company was a major mining concern established to extract coal from land owned by the Duke of Portland. At its peak the business was a constituent of the FT 30 index of leading companies on the London Stock Exchange.

The Bolsover Colliery Company was a coal mining company founded in 1881 in Derbyshire, England. The company operated several coal mines in the Bolsover district of Derbyshire, including the famous Bolsover Colliery. The company was originally established by a group of local businessmen and landowners, who saw the potential of the area's coal reserves and wanted to capitalize on them.

The Bolsover Colliery Company was a major employer in the area, providing jobs for hundreds of miners and their families. The company also built several housing estates for its workers, as well as a school, a hospital, and a community centre. The company invested heavily in modern mining equipment and safety measures, making it one of the most efficient and safest collieries in the country.

The Bolsover Colliery Company operated until the late 1960s, when it was nationalized by the British government. During its lifetime, the company produced millions of tons of coal, which was used to power factories, homes, and railways across the country. The company also made a significant contribution to the local economy, providing employment and training opportunities for the local community.

Today, the Bolsover Colliery Company is remembered as one of the most successful and influential coal mining companies in British history. Its legacy can still be seen in the area, with many of the housing estates and other facilities built by the company still in use today. The company's contribution to the development of the local area is a testament to its success, and its legacy will continue to be felt for many years to come.