For all of the internal investigations that wind up in the public eye, law firms with top-notch investigations practices are likely aiding clients on many more probes that aren’t intended to be made public.

In just the last several weeks, Wachtell, Lipton, Rosen & Katz was tapped for a National Basketball Association probe into allegedly inappropriate conduct by Phoenix Suns owner Robert Sarver; the NBA’s Portland Trailblazers hired O’Melveny & Myers to look into the conduct of nonplayer personnel at the team’s practice facility; and Jenner & Block was engaged by the producers of “Rust” to determine the facts behind the fatal shooting on the movie’s set.