Cho Design Associates, Inc. (CDA) is a multi-disciplined engineering firm, certified as a Disadvantaged Business Enterprise (DBE) with the California Unified Certification Program, as well as a certified State Minority Business Enterprise (SMBE) and SBE/VSBE (Micro). CDA specializes in three major fields: Transportation Facilities, Bridges and Public Works Facilities; Industrial, Petrochemical and Energy related facilities; and Public Agency Assistance.