R42 Group

R42 Group invests in and helps build early-stage companies in artificial intelligence, biotechnology and deep science. Established from Dr. Ronjon Nag's family office, the firm combines venture investing with hands-on guidance and scientific expertise, with a stated aim to "invent, invest and inform" as founders develop ideas into companies. Its stated technical domains include artificial intelligence, deep science, biotechnology, longevity, 5G and fintech.

The investment programme operates through two channels: direct investments in companies and commitments as a limited partner in funds. Stage coverage spans idea and pre-seed through growth, so portfolio work begins at the earliest point of company formation rather than at a later inflection. The operating model pairs capital with personal mentorship and access to experienced scientific and commercial advisors - a structure suited to technical founders translating laboratory work into commercial entities.

Alongside investing, R42 Group runs the R42 Institute, an educational arm covering artificial intelligence, longevity and biotechnology through events, guest lectures, academic engagement and fellowship programmes. Across both activities, the emphasis is on scientific expertise alongside capital and on sustained involvement with founders over the company-building cycle.