We've grown our tester community organically and through people finding us online or from referrals from other testers, but also through marketing and tester outreach efforts.
Our community includes a very wide variety of demographics, interests, and abilities: Professionals, students, moms / dads, developers, and everything in between.
The common thread is that all our testers are real-world people passionate about providing feedback and playing a meaningful role to help you launch better, more successful products.