Cotton, Shires and Associates, Inc. (CSA) is a professional geotechnical consulting firm providing services to a wide variety of clients, throughout the western United States.

For over three decades, the success of Cotton, Shires and Associates, Inc. has been built through the talent and skill of our professional staff, the confidence of our clients and the respect of the geotechnical community. Our corporate philosophy of combining commitment, motivation, teamwork and accomplishment has helped us establish a strong reputation of providing innovative solutions to unique problems.

Mission Statement