Mattern Land Surveyors is now DGT Associates

Mattern & Stefon Land Surveyors is now DGT Associates

Dear Friends,

Thank you for visiting the new home of Mattern Land Surveyors ( As of February of 2021, we renamed and merged with DGT Associates, a leading engineering and surveying firm in New England. We are proud to now fully integrate our team with DGT Associates.

Our office in Preston, Connecticut, will still stand as we carry on the Mattern legacy of accuracy, detail, and excellence under the DGT Associates brand — a legacy that DGT too upholds. Our team will continue providing premier surveying and engineering services to clients and partners throughout southeast Connecticut and the surrounding communities. And now, clients have access to DGT’s breadth of services, including 3D laser scanning services (existing conditions and façade mapping) and subsurface utility mapping services (utility location and mapping to ASCE 38-02 standards, GPR and remote-sensing, CAD and BIM-ready plans).

We invite you to explore the DGT website to learn more about our expanded and technology-advanced capabilities.

Thank you for your continued loyalty and commitment. We look forward to connecting with you soon to help fulfill the goals of your next projects in 2021 and beyond.


Susan F. Mattern, L.S.
Survey Group Manager – Connecticut
(860) 889-1999