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Welcome to RIM Engineering Co., Inc.

About us

In business since 1969, RIM Engineering is a family business which has designed over 24 miles of roads in Mansfield alone. We have been designing residential and commercial projects for 50 years in Southeastern Massachusetts. RIM Engineering handles all aspects of the project from Land Surveying to Civil Engineering, presenting the project to various town boards and committees.

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In Memoriam

Sadly, we would like to acknowledge the passing of two members of our team.


Our colleague John Chartier unexpectedly and suddenly passed away in July of 2021. John had been with RIM Engineering for 35 plus years, starting as an extra on a survey crew and later becoming the soil evaluator and wetland expert for the company.


Ralph Maloon graduated from Northeastern University in 1960 and after working in both the private and public sector founded RIM Engineering Co., Inc. in 1969. In business for 52 years, Ralph designed 27.2 miles of road in Mansfield alone. Ralph passed away on February 5, 2022, leaving the business in the capable hands of his two nephews.


Craig and Mike have 39 years of professional service between them and will continue to provide excellent service in the surveying and engineering fields. Although the scope of our work may change our commitment to providing accurate information to our clients will not.

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Meet the Team

Craig Cygawnoski

Registered Land Surveyor

Craig has been with the company since 1982 and became a Registered Land Surveyor in 1998. As such, he has performed boundary surveys, land court surveys as well as construction layout and design.

Only a Professional Land Surveyor duly registered by the Commonwealth of Massachusetts (see 250 CMR) is legally permitted to perform land surveys in the Commonwealth of Massachusetts.

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Our Field Crew

Mike Lajoie

Crew Chief

With the company since 1986 and the head of our field crew work since 2005, Mike is in charge of field layout and location work for all of our projects.

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Our Services

Boundary Surveys

Lot Staking

Percolation Tests

ALTA/ ACSM Land Title Surveys

Land Court Surveys

Soil Evaluations

Topographic Plans

Condominium Conversions

Septic Designs

Mortgage Inspection Plans

Certified Plot Plans

Sewer Designs

Flood Certificates

Building Permit Plans

Commercial and Industrial Site Plans

Wetland Delineation for Minor Projects

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Contact Us

12 Pratt Street,

P.O. Box 32

Mansfield, MA 02048


508-339-3731

FAX. 508-339-3733

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