Karen Dunn and Bill Isaacson, two partners on Boies Schiller Flexner’s executive committee known for representing an array of blue-chip technology companies and other prominent clients, are joining Paul, Weiss, Rifkind, Wharton & Garrison. The moves mark two of the most significant partner losses for Boies Schiller, which has already seen the departure of more than 30 partners this year.

The pair’s arrival at Paul Weiss was approved by a partner vote Thursday. While they will work in the firm’s Washington, D.C., office, Paul Weiss is planning to enter Northern California, said chairman Brad Karp. The location would align with Dunn’s tech client base, which includes Oracle, Apple and Uber.