Apax Partners set to buy up to 40% stake in engineering firm Quest Global

Apax is looking to acquire up to 40% stake primarily from the two existing investors - Advent International and Bain Capital - valuing the company at $2.1 billion. The two funds together own around 33% of the company. Singapore's investment firm GIC, which also owns a small 2-3% stake in the company, may also tag along. Some of the co-founders and management, too, are open to dilution.