Export Control Organisation is part of the UK government’s Department for Business, Innovation & Skills. ECO processes applications for licences to export strategic goods, software and technology from the UK. For this, ECO uses SPIRE, an online export licensing system. Strategic items include not only military products but also a wide range of other dual-use items such as chemicals, lasers, high-powered computers, cryptographic items and much more.
See further: https://www.gov.uk/government/organisations/export-control-organisation