Over 30 out of 54 (58 per cent) of the country's top tech journalists voted for Bite for the second year in a row.
The agency was followed in second place by fellow Next Fifteen agency August.One Communications, which secured 16 votes - moving up one place on its 2001 ranking.
MORI asked journalists - from the national press, online publications, specialist consumer press and the freelance market - to nominate PR consultancies from a list of a dozen top tech agencies that 'best understand their needs and those of their publications'.
Firefly Communications and The RED Consultancy bagged joint third place, with around 12 votes each.
Nearly 20 per cent of journalists voted for Harvard PR, helping the agency scoop fifth place, while Next Fifteen's third PR brand Text 100 ranked sixth, with 17 per cent of votes.
LEWIS PR and Miller Shandwick ranked joint seventh, with Grant Butler Coomber and Hill & Knowlton in joint ninth.
MORI study director Simon Duke said: 'We found that proactivity, responsiveness and a detailed understanding of the publications command the respect of the IT press.'
He added the research proved that journalists are irritated by PR staff who do not return calls, are ill-informed about their clients and bombard them with press releases.