O’Brien served for a time as the top city planner under former mayor Thomas M. Menino and currently leads HYM Investment Group, which is building two of the city’s largest real estate ...

Real estate developer Thomas O’Brien announced Monday he will not run for mayor of Boston. The managing partner at The HYM Investment Group, who worked at the Boston Redevelopment Authority under ...

After weeks of speculation, prominent real estate developer Thomas O’Brien has decided to run for mayor of Boston and plans to formally launch his campaign next week, a source close to the ...

He is the head of HYM Investment Group, which is behind several big Boston projects, including One Congress, Suffolk Downs and Boston Landing.According to the HYM website, O'Brien is a graduate of ...

O’Brien, 61, is the founding partner and managing director of HYM Investment Group, which is behind major redevelopment projects like the Government Center Garage downtown and Suffolk Downs in ...