Geotechnical Engineering . Geohydrology . Materials Testing Services
Corporate Office
Address: 86 Industrial Park Road, Suite 4
Saco, ME 04072
Phone: (207) 286-8008
Fax: (207) 286-2882
Branch Office
200 International Drive, Suite 170
Portsmouth, NH 03801
Phone: (603) 427-0244
Fax: (603) 430-2041
Branch Office
44 Wood Avenue, Suite 1
Mansfield, Massachusetts 02048
Phone: (508) 623-0101
Serving Maine, New Hampshire, Massachusetts, Connecticut, Rhode Island, & Vermont

Current News

  • Mansfield Office Opening
  • R.W. Gillespie & Associates, Inc., is accepting resumes from qualified individuals for a Construction Materials Testing Technologist position. See CAREERS for more information.

Our Services

  • Geotechnical Engineering Services
  • Foundation Investigations
  • Embankment & Preload Analyses
  • Slope Stability / Landslides Evaluations
  • Rock Anchor Design Criteria
  • Selection of Deep Foundations
  • Geothermal & Supply Well
  • Well & Borehole Video Surveys
  • Environmental Consulting
  • Groundwater Monitoring
  • Soil Infiltration Testing
  • Construction Materials Testing
  • Special Inspection Services
  • Nondestructive Testing
  • Floor Friction Testing
  • Steel & Masonry Inspection
  • Weld Inspections
  • Fireproofing & Insulation Inspection
  • Laboratory Testing Services
  • Soils, Concrete, Masonry & Asphalt Testing
  • Construction Observation
  • Wind Energy Construction Services

R.W. Gillespie & Associates, Inc. founded in 1986

At R. W. Gillespie & Associates, our mission is to provide high quality, professional services in geotechnical engineering, construction materials testing and inspections, and environmental sciences including geohydrology. Offices are located in Saco, Maine; Portsmouth, New Hampshire; and Mansfield, Massachusetts. We strive to develop sensible solutions with a goal of exceeding expectations.

RWG&A is dedicated to helping our clients identify and manage their projectís uncertainties and reduce the potential for delays and unanticipated costs. We are a management-owned corporation with direct principal involvement in technical projects. As engineers and scientists, we are committed to keeping abreast of research and advanced technologies used in our disciplines. As a service company, we are committed to use those technologies which are appropriate our clientís individual needs, goals and limitations

  • Quality Services Timely Advice Sensible Solutions