No, Songtrust is not a Performing Rights Organization. We act as a publishing administrator to collect publishing royalties on behalf of songwriters. These royalties include performance royalties paid by Performing Rights Organizations (e.g. ASCAP, BMI, SESAC).
You do need to be affiliated with a PRO in order to use Songtrust's service. If you're not yet affiliated with one, we can help you get registered through your Songtrust account. If you're already set up, we can simply start collect royalties on your behalf.