Kirkland & Ellis represented GTCR and its portfolio company Optimal Blue in the sale of the company to Black Knight (NYSE:BKI) for an enterprise value of $1.8 billion. Optimal Blue operates the residential mortgage industry's leading digital marketplace, connecting approximately 3,500 mortgage lenders and brokers with 185 mortgage investors through a digital network that facilitates approximately $2 trillion of transactions annually. Read the press release from GTCR The Kirkland team was led by transactional partners Stephen Ritchie and Christopher Thomas and associates Kyle McHugh and Brian Arnfelt.