DobleThomas & Associates 44b Mill St, Healdsburg, CA95448 DobleThomas & Associates is an engineering company. Services include land surveying, urban planning, civil…More engineering, GIS, aerial photography, photogrammetric mapping and land development permit processing. The company, formed in 2002, is headed by Bradley A. Thomas, who serves as president.
Quaker Hill Development Corp 105 Foss Creek Cir, Healdsburg, CA95448 Located in a business park north of the plaza, this company is a real estate investment firm. P.J. Lenz…More is Vice President of Operations. Lenz has been active in the local Chamber of Commerce, and in 20o5 she was elected Chair of the Board, the chamber's chief volunteer position.