30/05/2011 (Agence Europe) - Mergers: Towergate Businesses/Advent International. The European Commission granted clearance on Monday 30 May to the proposed acquisition of sole control of the whole of the undertakings Towergate Partnership, Cullum Capital Ventures, Countrywide Insurance Management and Powerplace Insurance Services, all of UK, by Advent International Corporation. The Towergate Businesses operate n the insurance sector. U.S.-based Advent International is a private equity group....