Bournemouth-based Imagine Publishing has bought 24 video-game and computing titles from Highbury, including PC Home, Play and iCreate.
Imagine's venture capital investor Kleinwort Capital poured 2.7m into the acquisition, taking its total investment in Imagine to 7m.
Highbury's three big consumer titles, Hotdog, DVD World and Front, printed by Southernprint, have all been bought by SMD Publishing.
Little is known about SMD, which, according to Companies House, is based in London and was incorporated as Astroplan in December 2005.
The remaining titles went to Encanta Media in Leeds.
Highbury sold to three firms
Highbury House has been bought by three separate companies after it went into administration last Friday with debts of at least 40m.
