Start or Expand Your Business without Huge Investment
Winweb Virtual Office helps SOHO businesses to solve their office needs, while
maintaining extremely good value.
http://www.winweb.com/products/content.php?product_id=72&tab=1

Virtual Office - World Office Network
World Office Network providing virtual offices, office space, office
rental, serviced offices and business centres in London.
http://www.worldofficenetwork.com/virtual_office.htm

Your Space Virtual Office Service
Starting a new business, working from home or looking to
expand? Your Space Virtual Office Service delivers all the services you'll
need at a fraction of the cost of a fully serviced office.
http://www.yourspaceplc.com/virtualoffice.htm