I invest mainly through my fund, Pioneer Bio+Health Fund. We invest at the earliest stages in founders innovating in biotechnology, healthcare, and life sciences. My partner on the fund is Dave Messina, the cofounder of Cofactor Genomics, who has been working at the intersection of machine learning and genomics since the human genome project.

I’m also a senior venture partner with Pioneer Seed Fund, where I help invest in seed stage companies in any domain, although I largely focus on bio+health companies.

I occasionally invest in other deeply technical domains as an angel investor.

I get especially excited about technical founders tackling ambitious problems in medical technology and healthcare. Three areas i’m particularly interested in at the moment are neurotechnology, artificial organs, and surgical automation. But I think being too focused on specific theses is a failure mode of many early stage investors, so I’d love to hear about any ambitious bio+health company you may be working on.

If you would like to reach out, my fund email is justin[at]pioneerfund.vc