Checking the details with Companies House which is something I have learned to do, shows the company has been trading as 4SG Limited since 2007.
Name & Registered Office:
4SG LIMITED
UNIT 15A FREEMANS PARC
PENARTH ROAD
CARDIFF
UNITED KINGDOM
CF11 8EQ
Company No. 06061813
Poorly designed web site though does not really make you want to use them.
Not checked how good or cheap their products are though.