Awards Our awards and recognitions are something to be proud of
Associated Builders and Contractors - National Safety Merit Award
Associated Builders and Contractors - Merit Award, AVA Northpoint
Associated Builders and Contractors - Merit Award, Meriel Marina Bay
Associated Builders and Contractors - Eagle Award, Montaje
Associated Builders and Contractors - Eagle Award, Alnoba
Associated Builders and Contractors - Green Award, Alnoba
Associated Builders and Contractors - Safety Excellence Award, Alnoba
Associated Builders and Contractors - Eagle Award, Squirrelwood
Associated Builders and Contractors - S.T.E.P Gold Award, 2008-2019
Associated Builders and Contractors - S.T.E.P Platinum Award, 2020
Associated Builders and Contractors - S.T.E.P Platinum Award, 2023
Multifamily Executive (MFE)
Community Service Award, 2017
Multifamily Executive (MFE)
Mixed-use Development of the Year
J Malden Center, 2021
Boston Business Journal - THE LIST
Largest General Contractor 2023: #6,
Largest Family Owned Business 2023: #9,
Largest Private Company 2023: #32
Boston Business Journal - Best Places to Work
2022
Engineering News-Record (ENR)
Top 400 Contractors 2023: #199
The Boston Globe - Top Places to Work
2018, 2021, 2023
National Safety Council Awards - 2020
Occupational Excellence Achievement
Million Work Hour
Callahan Site Division Perfect Record
Significant Improvement
Leo Corcoran Humanitarian Award for Excellence in Community Service
2022
Let's build something together
Callahan is committed to building strong, long-lasting client relationships, and to consistently delivering solutions that exceed expectations. Contact us today about starting your next project.