Walshes decision to leave preceded the merger decision.
RDF West MD Jo Scarratt-Jones and London boss Meredith Chambers will remain with the company.
Staff have been informed and we are reviewing a new structural proposal with them.
Your Home Made PerfectBBC / Remarkable TV
He said she has left to embrace her next adventure.
Walshe added: Remarkable has always stood for innovative, brave television.
Remarkables larger entertainment division, which is helmed byLove Islandcreator Natalka Znak, remains untouched.
Kitty WalsheBanijay
ThePointlessandThe Wallproducer is on the brink of relaunching the BBCs long-awaited reboot ofSurvivor.
