The heating, ventilation and air-conditioning market remains popular amid a broader private-equity deal slump. : https://www.wsj.com/articles/investcorp-makes-its-second-climate-control-investment-in-past-year-0d7f3247 Buyout shop Investcorp is backing heating and air-conditioning business Best in Class Technology Services, its second investment in the past nine months in the highly fragmented market for climate-control systems providers often referred to as HVAC companies. The Manama, Bahrain-based firm said it is acquiring a controlling stake in the Lenexa, Kan., company with its managers and existing investor Dunes Point Capital retaining meaningful stakes. Investcorp last year closed on around $1.2 billion for its first pool to back midsize North American businesses.