Since 1974, CSA has provided quality Civil Engineering and Land Surveying services throughout the Bay Area and surrounding areas on projects of all sizes. We are a local small business providing Civil Engineering, Land Surveying and Project Management Services located in the beautiful historic city of Benicia, California. At Cullen-Sherry & Associates (CSA), we strive to provide quality service throughout the Bay Area and surrounding areas on projects of all sizes, from small drainage designs to large scale industrial and commercial developments. Since 1974, our firm has provided public agencies and private clients with reliable, quality and cost effective survey and civil design solutions for their projects. CSA was founded in 1974. With 40 plus years of experience, CSA has become the competitive, full service small engineering and surveying firm it is today.