Anyone that has spent time researching different applicant tracking systems (ATS) has no doubt found numerous recommendations and opinions online. Many folks start their research by seeking insight from colleagues on sites such as ERE.net or RecruitingBlogs.com, while others turn to sites that offer an ATS directory.

When it comes to directories, I have a preference for sites that allow vendors to post information about their solutions for free and without any description limitations. The following are my top three ATS directories:

TheATSGuide
ATS Listings: 160 (Detailed Listings: 30 - Basic Listings: 130)
Aside from participating in creating the site, I like TheATSGuide because it offers vendors the ability to post both detailed and basic information completely free. There are also some upcoming features on the site including an “Ask the Experts” page.

TalentManagementTech
ATS Listings: 133
TalentManagementTech is a great community site that allows vendors to not only post ATS information to a directory, but allows them to start discussions, create blogs and post news releases. ATS information is just a faction of the site’s content and is a great resource for Talent Management information in general.

RecruitingTools
ATS Listings: 18
This is the latest site started by the folks at TalentBar, RecruitingBlogs, and Job Boarders. While the site is just starting out, it has the potential to be a terrific site that offers 28 different categories of recruiting tools.

Honorable Mention – Capterra
ATS Listings: 203
Anyone that has looked for an ATS directory has no doubt run into Capterra. While vendors can post basic information for free, there are pay models which can get them better placement in the listing and offer some additional information in the description. While it lists the most ATS vendors, you might find a few solutions that stretch the definition of an ATS or find a solution that is no more.