About Us : St. John Enterprises Inc. Is a ST. JOHN ENTERPRISES, INCll established construction firm in the New York City area. We have been in business for 23 years performing heavy construction work for many City agencies and private firms. We maintain ownership of our own equipment and have a well outfitted maintainance shop for these machines. We are also involved with sales and rental of heavy construction equipment, dump trucks, tractors, and trailers. If any party is interested in buying heavy construction equipment, please feel free to contact us at the listed contact information.