Directions: Concord Partners Ltd. 20 William Street Wellesley, MA  02481 phone: (781) 237-7000 fax: (781) 237-7233 Click here for a map of this location. Detailed directions: » From Logan International Airport » From points East (Boston) and West    via Massachusetts Turnpike » From points East Via Route 9 » From points West Via Route 9 » From points North And South    via Route 128 / I-95