WE ARE A TRADITION of EXCELLENCE

AT co. is a North America-based, international construction services company and is a leading builder in diverse market segments. The company has earned recognition for undertaking large, complex projects, fostering innovation, embracing emerging technologies, and making a difference for their clients, employees and community.

We complete $10 billion of construction on 1,500 projects each year. AT co. offers clients the accessibility and support of a local firm with the unprecedented stability.

Since our incorporation in 1981, we've grown from a regional organization to a multi-faceted, national presence in the industry with headquarters in New York and regional offices in Miami, Washington DC, and Los Angeles. Our roots are based in construction, real estate, investment and development management. Our portfolio includes work across industries. Our uniqueness comes from understanding what it is to be the owner, the developer and the builder – a trifecta that is evident in the core portfolio of prestigious commercial, corporate and residential properties.