The deadline to participate in the Inquirer's Top Workplaces survey has been extended to Nov. 16. A special section highlighting selected companies will be published next spring.

More than 100 companies in the Philadelphia region have already signed up to have their employees take the 24-question survey that is used to evaluate the nominated companies.

To participate, organizations — public, private, nonprofit, or government — must have at least 50 employees and be located in the Philadelphia region.

Nominations can be made at http://www.philly.com/nominate or by calling 484-323-6270.

Energage, the research partner for the project, conducts Top Workplaces surveys for more than 40 major newspapers, and surveyed 2.5 million employees at more than 6,000 organizations in 2017.