Hi! I'm a member of the Pants open source team. We recently started a "Who Uses Pants" page at https://www.pantsbuild.org/v2.8/page/who-uses-pants. Coinbase, Foursquare, Chartbeat, and others have listed themselves there. Here's a detailed case study from iManage about how they're using Pants 2: https://g-cassie.github.io/2021/10/02/django-pants.html.

The #welcome channel in the Pants community Slack (https://pantsbuild.slack.com) is the best place to discover what large companies are using Pants 2, including Fortune 500 companies.

I'm preparing to launch a series of user interviews on our blog (https://blog.pantsbuild.org/) in coming weeks. Those in-depth conversations explore things like how the Pants 2 adoption process has gone, benefits their team is experiencing on the ground, pragmatic comparisons with alternate solutions the company has used or evaluated, etc.