CommBox, a leading enterprise-grade omnichannel, AI-powered customer experience platform, has announced the completion of a $15 million growth investment round from PSG Equity, a leading growth equity firm that specializes in partnering with software and technology-enabled services companies to help navigate and capitalize on transformational growth. This investment follows PSG Equity's original 2021 investment and will be used to help expand CommBox's global footprint and enhance its innovative AI-powered solution.