Birmingham City have announced a shirt sponsorship deal with foreign exchange and money transfer firm RationalFX.

The London-based company, authorised by the FSA, originally began talking about match-by-match sponsorship but has signed an initial one-year deal that the club said has the scope for further extension.

Last month the club announced it was offering shirt sponsorship on a match-by-match basis to build "strong relationships with a wider range of local, national and international businesses".

Replica shirts will be sold with or without the new logo.

Home kits go on sale from August 11 and fans who want shirts featuring their new sponsor will be able to buy them from August 18. Children’s kits will all be without the logo.

Away kits go on sale from Thursday, August 4.

Blues commercial manager Ian Dutton said: “From the very first conversation we had with RationalFX it was clear that the company mirrored Birmingham City’s professionalism and ambition.

“We are very much looking forward to working closely with such a dynamic, rapidly expanding company.”

The exchange business’s chairman and CEO Rajesh Agrawal said: “We feel that this is a perfect time to associate ourselves with a big club with silverware in the trophy cabinet and European football to look forward to.

“I’m looking upon the coming season with great excitement.  I and everyone at RationalFX intend to live every minute of it with the Blues fans – and we’re backing Chris Hughton and the team to get the club back to the Premier League where it so obviously belongs.”

Anyone who has pre-ordered a shirt from Blues’ online store can get the logo applied for free at the Blues Superstore.