Directories

Thomas Industrial Directory

ThomasNet is the leading source of information on industrial products and services provided by North American suppliers.

MacRAE'S Blue Book

America's original industrial directory since 1893.

Professional Organizations

National Tooling and Machining Association

The National Tooling and Machining Association is a trade organization representing the precision custom manufacturing industry throughout the United States.

Search Engines

GlobalSpec

The engineering search engine.