Catalyst, a firm that owns and operates housing facilities, agreed to merge with Rosebery, a provider of affordable homes and services. Financial terms were not disclosed. “The strong values and local expertise of Rosebery, as well as their excellent reputation made them an attractive potential partner and we’re pleased to welcome them to the Catalyst Group. I very much look forward to working together and welcoming Christine to the Catalyst Board as we deliver on our ambitions to provide much needed affordable housing in the area," Ravi Rajagopal, Catalyst Chair.