Who We Are. Hall-Irwin is undergoing a transformation, building off 60 years of history in land development, water storage, and vertical construction, we are improving the way that construction projects are executed, and we want you to be a part of it. Established in 1963, our team takes pride in an innovative and forward-thinking culture in both the office and the field. We are a family-oriented company that is focused on making sure all our emp...