Essential Suiteâ„¢ Version 6.3 from ESS includes new global and module-specific functionality to enhance international collaboration and improve reporting. Users can access the software in their native language, which can be displayed regardless of where they are in the world. Featuring a new Industrial Hygieneâ„¢ module, Essential Suite helps users comply with international, federal, state and local regulations.ESS, Tempe, AZ.