SEATS

A London Stock Exchange service which supports the trading of listed UK equities in which turnover is insufficient for the market making system.
Found on http://www.exchange-handbook.co.uk/index.cfm?section=glossary&first_letter=

SEATS

Stock Exchange Automated Trading Services.  Allows sales and purchases to be matched electronically.
Found on http://www.encyclo.co.uk/visitor-contributions.php
No exact match found