Advent, a private equity firm, led an investment in Assembly, an e-commerce software and data platform, at $1bn valuation. PSG also participated in the round. "What aggregators have done for brands, we have been doing for software. We are singularly focused on helping e-commerce merchants grow better by bringing together software tools and combining them with valuable content. Our mission is to meet our customers' needs at every stage of their growth," Sandeep Kella, Assembly Co-Founder and CEO.