SG Blocks, Inc. provides code engineered cargo shipping containers primarily in the United States. The company redesigns, repurposes, and converts heavy-gauge steel cargo shipping containers into green building blocks for commercial, industrial, and residential building construction. It also provides engineering and project management services related to the use of modified containers in construction. The company serves architects, builders, and owners. SG Blocks, Inc. was founded in 2007 and is headquartered in Brooklyn, New York.