By Bob Grossweiner and Jane Cohen, Britain’s fast-growing vertical search engine for event tickets, has an available inventory of tickets for sale in the US and UK that has exceeded 8 million.

The website allows users to use vertical search features to browse and compare information on tickets they find through artist, venue, cost, date and seat location searches. When the TickEx site launched in Britain this past spring, its database included more than 500,000 tickets to UK performing-arts events. TickEx launched its U.S. site in August 2007.

“The sheer growth of the breadth of our listings is a remarkable achievement for us, and is proof that our aggregation strategy is giving music and sports fans unprecedented opportunities to search for the tickets they want – and is also giving sellers access to a broad range of customers,” said TickEx CEO Richard Robinson in a statement. “Our goal is to have the most comprehensive database of tickets on the Internet and reaching this milestone is an important step in our growth in Europe and North America.”

Insomniac browser for ticketing professionals