By his final year at Stanford Law School, Nader Mousavi knew he wanted to spend his career in tech. The Sullivan & Cromwell partner, who first cut his teeth as the only in-house lawyer for a telecom software startup during the dot-com boom, has seen that mission through, advising some of the world’s largest tech companies on industry-first transactions.

Mousavi is a wearer of many hats, as the co-head of Sullivan & Cromwell’s intellectual property and technology group and a member of its cybersecurity group, as well as a lecturer at Stanford. But at his core, he is a self-described tech deal lawyer, who most recently found himself at the forefront of the generative artificial intelligence revolution.