Highbury House, the publisher of DJ magazine, What Satellite TV and Gardens Monthly, is to acquire Cabal to boost its presence in the consumer market.
Cabal has a contract publishing division that is also part of the deal.
Cabal, which launched in July 1998, wants to increase the speed at which it can launch consumer titles. It will move into the Highbury House offices and the Cabal name is likely to disappear over time.
Sally O'Sullivan, the chief executive of Cabal, said: "It became apparent to us that we needed to grow, and there came a point when we were ready for the next stage. We could either buy, get bought or merge. Highbury's plans make it a good deal - very little will change apart from us becoming part of a much bigger company that will launch new titles."
Cabal's core team led by O'Sullivan, the former editor of Good Housekeeping and Harpers & Queen, and the managing director, Stephen Hunter, will remain in place.
Highbury announced the deal with Cabal as it revealed pre-tax profits of £9.8 million for 2002.