Maryland Industrial Directory . Maryland Department of Economic and Employment Development. Harris Publishing Company. Covers over 4,600 manufacturing plants in the state of Maryland. Firms are listed geographically, numerically by Standard Industrial Classification code number, alphabetically, and by product.
Additional tables provide various statistical summaries on companies and employees.
New Jersey Business Directory . A comprehensive directory of New Jersey businesses and other establishments. It is a directory of establishments rather than business activities only. Such operations as churches, social services, etc. are also included in this directory. Provides basic telephone directory information in addition to business activity related information when available.