About Us

DeepStore provides expert commercial document storage and retrieval services and is the UK’s largest underground storage company. Based in Winsford, Cheshire, 150m below ground, the company was established in 1998 as an alternative use for the space created from mining millions of tonnes of rock salt in Britain’s largest salt mine – owned and operated by our parent company, Compass Minerals.

Storage solutions you can depend on

Whether you are looking for an efficient and convenient records management service or longer-term archive and artefact storage, we can provide you with the highest level of service and care.

Our high standards extend not only towards efficient service but also to security, compliance and affordability. It is through the innovative use of our pre-existing and unlimited space that DeepStore is able to provide its clients with both unparalleled security and great value for money.

In 2007, DeepStore expanded with the acquisition of a London-based document storage firm, providing us with a modern facility in the Capital and enabling us to offer same-day document retrieval and a full range of records management services to businesses throughout the South East of England.