In 1970, upon completion of his survey responsibilities in connection with the construction of Warm Springs Dam in Sonoma County, John Doble, PLS opened John H. Doble & Associates in Cloverdale. In 1989, Bradley A. Thomas opened Bradley A. Thomas & Associates in Sebastopol. In 2000, Brad purchased John H. Doble & Associates. The merged company was renamed DobleThomas & Associates and was incorporated in 2002. Bradley A. Thomas is the company’s President. John H. Doble is semi-retired and is the company’s expert consultant.

Today the offices of DobleThomas & Associates, Inc. provide professional land surveying, urban planning, civil engineering, GIS, aerial photography and photogrammetric mapping services throughout Northern California. The efficiency of these disciplines combined is advantageous for our clients as both savings in time and overall project costs. Our office employs a team approach to all projects utilizing state of the art support systems in surveying and computing, which enables us to tackle even the most technically complex projects. DobleThomas & Associates, Inc. has two office locations along the Russian River in Sonoma and Mendocino Counties serving both public and private clients.

To further complement our range of services, we opened The Map Store in 2003. The Map Store is a retail distributor of published map products and the publisher of custom cartography utilizing state of the art GIS technology. GIS Mapping Services are rendered to the Wine Industry, the Real Estate Profession and Municipalities. Winemap.org was created by The Map Store in collaboration with the Sonoma County Winegrape Commission and the Oregon Winegrowers Association. Bradley A. Thomas is the company’s President.

DobleThomas also has a very close working relationship with Delta Geomatics Corporation in Santa Rosa. Delta Geomatics is the former the photogrammetry division of Hogan-Schoch and Associates in Sebastopol. Delta’s library of Northern California aerial images dates back to the late 1950’s. Bradley A. Thomas is the Vice President of Delta Geomatics Corporation.