Alter Domus, the Luxembourg-based provider of fund services for the private equity, real assets and private debt sectors, has expanded its key client partnerships team, appointing Kenny King as head of key client partnerships, North America, and Jane Karczewski as head of key client partnerships, EMEA. King joins from BNY, where he was global head of alternatives relationship management. Karczewski most recently led investors business development and ESG solutions at Société Générale.