Whether you are looking to expand, upgrade, or build a new facility, Hennessy has the experience to help you take your business to the next level. Interested in going "Green?" Our staff of LEED Accredited Professionals has sustainable experience, building to the highest LEED standards, and can guide you through the certification process. Our commercial experience includes both renovation and new construction of office buildings and light manufacturing, from 4,000 sf to 95,000 sf.