Simpson Thacher & Bartlett LLP has added Geoffrey Bailhache to the firm’s London office as a partner.

“We have had the great fortune of working with Geoff for many years and the depth and breadth of his experience will be a perfect fit for our preeminent global transactional platform,” said Bill Dougherty, chairman of Simpson Thacher’s executive committee. “Geoff is well-known for his deep M&A experience—spanning both geographies and industries—and we are very pleased to welcome him to the firm.”

“It has been a privilege to have worked with such an incredible team of investment professionals and lawyers at Blackstone for the last decade,” said Bailhache. “Having worked alongside Simpson Thacher’s lawyers on transactions for many years, I am excited to join this talented group for the next chapter of my career.”