Circle Rep's developmental arm was the Circle Rep LAB. The LAB's Artistic Director was first Daniel Irvine, then Michael Warren Powell. At its height the Lab had over 300 active members(actors, writers directors and designers. Plays selected for this series received a week of rehearsal and a four-performance run. Several of the plays from the Circle Rep LAB went on to become major productions the following season or at other theaters, and including William M. Hoffman's "As Is" and Paula Vogel's "The Baltimore Waltz." Michael Warren Powell became the artistic director of a successor company, Circle East, which continued the work of the LAB until Powell's death in 2016, and was then refashioned into the New Circle Theatre Company.