This page explains how to apply to come to the United Kingdom as a sole representative of an overseas firm.
For details of the requirement you must meet under this category, see the Eligibility page.
You will need to apply for a visa before you travel to the United Kingdom. Visa applications are processed by visa services, and you should apply at your nearest British diplomatic post - for a list of these, see the right side of this page.
Visa Customer Services, Visa Services Directorate, International Group, UK Border Agency, c/o Lunar House, 40 Wellesley Road, Croydon, CR9 2BY If you are outside the United Kingdom, you should contact your nearest British diplomatic post.