Our Company

Rollo and Ridley, Inc. (R&R) was established in 2008 and is a privately-held California corporation. The principals of the firm, Frank J. Rollo, GE and Christopher A. Ridley, GE have performed geotechnical and earthquake consulting services to both public and private clients.

Rollo and Ridley has small business enterprise certification with the City & County of San Francisco and with the State of California.

With the experience (over 30 combined years) and technical resources of a large firm, Rollo and Ridley provides the personal service and flexibility of a smaller firm, including, highly experienced and effective, involvement of and QA/QC review by senior principals in every project, qualified, energetic, and responsive technical staff, sophisticated, flexible support services, and high-quality outside specialists as necessary from our extensive network of contacts. References available upon request