ChemIDPlus

Structure and nomenclature used to identify chemicals

Compustat

U.S. and Canadian market information for publicly-held companies

IBISWorld

Business reports and market research, with special industry reports

PrivCo

Financial data on major privately-held companies

Rand California

Source for public policy issues, with an emphasis on statistics

ReferenceUSA

Information for more than 10,500,000 U.S. companies

Statista

Industry statistics with reports and inforgraphics