Hayner/Swanson Inc is an established full service civil engineering and land surveying firm noted for experience, integrity, and extremely high standards. Based in Nashua, New Hampshire, our company was founded in 1972 and became Hayner/Swanson, Inc in 1995. Our success is a tribute to our staff who on average have been with the company longer than 15 years. We have completed thousands of projects throughout New England for many municipal, state, and private land development clients. We are particularly proud that much of our work is repeat work for established clients. We believe that this high level of repeat business underscores our commitment to client satisfaction.