Warburg Pincus
Kohlberg Kravis Roberts
Bain Capital
Permira
Blackstone Inc.
Odido
3i
CVC Capital Partners
Cinven
Partners Group
Insight Partners
TPG Inc.
British company
apax.com
Apax Partners LLP is a British private equity firm, headquartered in London, England. The company also operates out of six other offices in New York, Hong Kong, Mumbai, Tel Aviv, Munich and Shanghai. Wikipedia