The story
The roots of the firm go back to 1759 but it takes its name from John Carter Jonas, who established an office in Cambridge in 1855. It merged with Dreweatt Neate in 2009 and is one of the largest firms of property consultants in the UK, with 32 offices and approximately 1000 employees.
From Wikipedia’s article on Carter Jonas, shared under CC BY-SA 4.0.4