A founding member of the agency, which launched in January 2002, Griffiths joined DLKW Dialogue as business development director and was responsible for winning the global redesign of OrangeWorld, Orange's mobile portal.
His promotion is recognition for his work with clients like Birmingham Midshires, Vauxhall and Orange and his importance to the business going forward, according to chairman Simon Andrews.
"Steve has played a significant role in helping us to become a very successful small agency, the challenge is to move us to a very successful medium sized agency," Andrews said. "He has not only delivered award winning creative but has grown the business."
Griffiths joined DLKW Dialogue from European digital agency network Lostboys, where he ran the UK office. Before that, he was European business development director for Modem Media, where he was also responsible for the European General Motors interactive account.
During his career, he has also accumulated nine years' experience at direct marketing agencies including Proximity and Tullo Marshall Warren.
The breadth of his experience is significant as the agency recently took steps to improve its direct offering with the appointment in October of former Leonardo chief executive Steve Barton to the same role at DLKW Dialogue.
Since then, the agency has picked up the £2m Teletext below-the-line account and has hired Kirsty Stephenson as account manager from Ogilvy Interactive.
As well the Teletext brief, Stephenson will also on the Department of Education and Skills' , which encourages young people to consider further education.
DLKW Dialogue, the online and below-the-line offshoot of creative agency Delaney Lund Knox Warren & Partners, has revenues of around £2m and a client list that also includes the Australian Tourist Commission, Burger King and Halifax Bank of Scotland.
The agency is on the COI roster and has pioneered online advertising for the Department of Health's Teenage Pregnancy campaign, which aims to reduce teenage pregnancies by 50%.
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