These directories rank major companies by sales, number of employees or other financial measures within specific industries or locations. An individual firm's market share can be easily computed by dividing its figure by the industry or location's total value. Industries are usually listed by the SIC or NAICS code arrangement.
- Ward's Business Directory Ref HG 4057 A561
- Business Journal (Sacramento) Top 25 Lists Ref HF 5065 S12 B8
- Market Share Reporter Ref HF 1040.9 M3
