John Sullivan, President of TGG, founded the company in 1984 with a vision to offer innovative civil engineering solutions with superior client service. John has been a principle-in-charge for over 1600 projects, including high rise, mid-rise, and one-story buildings, regional shopping centers, landfills, highways, dams, tunnels, vibration sensitive high tech buildings, garages, playfields, surcharging schemes and rock fill designs.

An expert in the field, John is often called upon to solve difficult geotechnical issues and advise on construction methodology. Prior to TGG, John was an engineer with Goldberg and Zoino. John began his career in geotechnical engineering with the U. S. Army Corps of Engineers where he served as Captain until 1968. He received his B.S. and M.S. in Civil Engineering and Geotechnical Engineering from Northeastern University.

PROFESSIONAL ASSOCIATIONS:
Boston Society of Civil Engineers (past President)
American Society of Civil Engineers (ASCE)
American Consulting Engineers Council of New England
Association of Soil and Foundation Engineers (ASFE)
Society of American Military Engineers
American Arbitration Association
Northeastern University Civil Engineering Alumni Association