Daniel Marr & Son Company

Daniel Marr & Son Company was established in 1898 and has played a major role in the development of the Boston skyline by providing high quality steel and precast concrete erection services to fabricators and general contractors. The professional standards upheld by the company have proven successful time after time: a cooperative team approach, quality performance, effective and timely resolution to project challenges and commitment to a safe working environment.


Marr Scaffolding Company

Marr Scaffolding Company was established in 1945 and provides the rental, sales and servicing of nationally marketed construction products and equipment. Marr Scaffold operates through five distinct divisions: Scaffold, Shoring, Aerial Lifts, Hydro Mobile Mast Climbers and Bleachers and Special Events. The company also operates a Contractor’s Safety and Supply Warehouse that offers a local, on-the-spot resource for contractor supplies and safety items.


Marr Crane & Rigging

Marr Crane & Rigging operates three lines of business throughout the Greater Boston area: cranes, construction elevators and rigging services. Marr’s equipment fleet includes 22-ton to 300-ton cranes with the company employing fully-trained and experiences operators and signal persons. A variety of construction elevators are available for rent including the newest products on the market. The rigging and installation of all types of equipment is a core service and we offer indoor/outdoor storage with three facilities offering a total of 30,000 square feet of storage. A fleet of heavy vehicles including tractors, trailers, pick-ups and rack body trucks is maintained.


Isaac Blair & Company, Inc.

Isaac Blair & Co., Inc. was established in 1820 and purchased by Daniel Marr & Son in 1969. The company provides specialty construction shoring and rigging services and has developed an unparalleled expertise in solving complex shoring and rigging challenges, including situations involving hazardous waste and asbestos infestation.