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 - S.T.E.P Gold Award, 2008-2019
Associated Builders and Contractors (ABC) - S.T.E.P Platinum Award, 2020
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
Top General Contractor, Top Family Owned Business, Largest Private Company
Boston Business Journal - Best Places to Work
2022
Engineering News-Record (ENR)
Top 400 Contractors
The Boston Globe - Top Places to Work
2018, 2021
National Safety Council Awards - 2020
Occupational Excellence Achievement
Million Work Hour
Callahan Site Division Perfect Record
Significant Improvement
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.