Chemistry Ventures, the venture capital firm launched two years ago by Bessemer alumni Index Ventures and Andreessen Horowitz, is raising $500 million for its second fund, according to an SEC filing.

Founded by Mark Goldberg, Ethan Kurzweil, and Kristina Shen, Chemistry launched with a $350 million fund and invests in early-stage startups building development tools, fintech, and infrastructure. His portfolio companies include Granola, Decagon, Persona, Serval and Nova Intelligence.

Goldberg previously worked at Index Ventures, Kurzweil with Bessemer, and Shen with a16z. The trio launched the company to combine their experience working at large venture capital firms.

The Wall Street Journal reports that the second fund is already oversubscribed and the fundraising is expected to end soon.

Chemistry did not immediately respond to a request for comment.