PSG Equity, a private equity firm, completed an investment in Packback, an AI-enabled writing and discussion platform. Financial terms were not disclosed. “We are all incredibly excited to partner with PSG as we strive to advance our shared goal of getting more feedback to all students earlier in the learning process. We’re grateful to have found a partner with a shared passion for education and deep empathy for the experience of the educators we support," Kelsey Behringer, Packback CEO.