About Mid Atlantic BX

Founded in 1938, Mid Atlantic BX (MABX) has played an integral role in the success and growth of the commercial construction industry throughout the Mid-Atlantic region - developing innovative solutions to maximize member business development initiatives and to streamline the bidding process. 

MABX provides its members access to more than 14,000 commercial construction projects annually, throughout the Mid-Atlantic region (Central and Eastern PA, Central and Southern NJ, Delaware and Northern MD). All projects are listed in COOL (Construction Opportunites Online), the region’s most comprehensive online construction reporting resource.

As a not-for-profit trade association, our primary goal is to help our members succeed. Mid Atlantic BX provides all members with the complete resources of the fastest growing construction trade association in the United States with the largest plan room in the region. Our experienced staff of professionals provides the most accurate, reliable and timely project information available anywhere.

MABX membership includes access to any blueprints, specs, addenda and other bidding information available for each project listed in the COOL plan room.  MABX also provides networking through social events, industry-specific educational opportunites and training sessions, endorsed health insurance packages, other employee benefit programs, and marketing opportunities for every member.