Riverside adds on PPM Advisory Group to Red Nucleus platform Riverside adds on PPM Advisory Group to Red Nucleus platform Print The Riverside Co. has acquired PPM Advisory Group and its subsidiary, OrtleyBio, as the latest add-on for its Red Nucleus platform company. Financial terms of the deal were not disclosed. PPM, based in Chatham, N.J., provides scientific operations and communications services to global biopharmaceurtical companies with a focus on oncology and hematology therapeutic areas. The transaction marks the fifth add-on deal related to the platform since an initial investment in December 2019. The other acquisitions are Pyxa Systems (DirectusPRO), LSTI, INVIVO Communications and iTakeControl.