Our H2 Q&A series with private equity thought leaders continues with Thomas Groh, a partner at Altus Capital Partners; Welsh, Carson, Anderson & Stowe makes a majority investment in AIA Contract Documents; more detail about WCAS’ co-investors, including what general partner Christopher Hooper said about the deal; Hg to acquire a majority stake in A-Lign, a provider of technology-enabled cybersecurity compliance services, from Warburg Pincus.