- American Vanguard Corporation
- Newport Beach - Speciality chemical manufacturer that develops and markets products for agricultural and commercial uses. - Arkenol, Inc.
- Mission Viejo - Using concentrated acid hydrolysis technology to convert cellulosic materials into high-value chemicals and transportation fuels. - Hill Brothers Chemical Co.
- Chemicals for industrial applications, construction, and waste water treatment. - SDC Technologies
- Anaheim - Developing hardcoating systems as well as hardcoating application services.
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