The agency has been briefed to position the firm's services as more cost-effective and convenient than banks to small and medium enterprises and corporate customers.
It wants to convey the message that foreign exchange can be managed without using a high-street bank.
MD Kevin Read said: 'For many finance directors, foreign exchange is not front of mind. But in tight climates expert foreign exchange independents such as Currencies Direct can deliver both savings and peace of mind.'
The account was won following a competitive pitch.
Read reports to company director Stuart Boon.
Currencies Direct also uses Octopus Communications to handle consumer media.
The agency targets private clients who are buying property overseas.
Currencies Direct has a network of more than 2,000 business partners.