California Manufacturers Register
REF T12 C3
Northern California Business Directory and Buyers Guide
REF HF 5065 .C2 N67
Southern California Business Directory and Buyers Guide
REF HF 5065 S2
Directory of California Wholesalers and Service Companies
REF HD 9981.7 .C2
American Wholesalers and Distributors Directory
REF HF 5421. A615
Thomas Register
REF T12.T612
Also online at ThomasNet - Register for free.
CorpTech Directory of Technology Firms
REF HG 4057
Hoover's Handbook of Emerging Companies
HG4057 .A28
Encyclopedia of American Industries
REF HC 102.E53 (2 vols.)
WEFA Industrial Monitor
REF HC 101.W434
U.S. Industry & Trade Outlook
Reference Desk
Directory of Foreign Manufacturers in the United States
REF HD9723 .A76