The round was led by Bain Capital Ventures (BCV), with participation from existing investors Sequoia Capital, Tribe Capital, and Nexus Venture Partners. Following the company's Series C in March 2022, this investment brings the company's total funding to approximately $250 million while nearly doubling the valuation of the company at $1.6 billion.

Apollo.io is the leading go-to-market solution for revenue teams, trusted by over 500,000 companies and millions of users globally, from rapidly growing startups to some of the world's largest enterprises. Apollo.io provides sales and marketing teams with easy access to verified contact data for over 270 million B2B contacts, along with tools to engage and convert these contacts in one unified platform. By helping revenue professionals find the most accurate contact information and automating the outreach process, Apollo.io turns prospects into customers.