73 of the most promising startups of 2023, according to top VCs


By Julie Bort, Ben Bergman, Darius Rafieyan, Leena Rao, Madeline Renbarger, Samantha Stokes, and Vishal Persaud

Nucleus Security is a vulnerability management platform for enterprises

Recommended by: Avery Rosin at Lead Edge Capital

Relationship: Lead Edge Capital is an investor in Nucleus Security.

Total funding: $23.1 million

What it does: Nucleus Security manages cybersecurity for companies through one holistic platform.

Why it’s on the list: Rosin said, Nucleus has been growing rapidly over the past few years, more than doubling every year, with many impressive enterprise accounts and a growing federal presence as well. Also, thanks to its platform, it filters out the most important notifications for review and handles the rest.