Managing an Agency Business | 12 followers on LinkedIn. Managing an Agency Business (MAB) is a quarterly event series focused on bringing Boston-area agency founders/owners/managers together to discuss the 'business' of running an agency. Topics of conversation include business development, operational management, developing culture and anything other than the actual services you offer your clients. MAB is not another networking event for hand shaking and business card swapping but rather an intimate gathering of peers looking to share their trials/tribulations in building successful agency businesses.