Simpson Thacher & Bartlett told associates Wednesday that it was raising associates salaries—matching the scale set by Milbank, Tweed, Hadley & McCloy this week—while also giving associates a summer bonus, according to an internal firm memo obtained from a source.

While a trickle has begun of other large law firms matching Milbank’s scale, including Proskauer Rose and Winston & Strawn, Simpson Thacher is the most profitable law firm to make the market move so far.