Brian Steinberg is a Principal at At One Ventures, whose known portfolio counts 9 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Principal at At One Ventures, whose known portfolio counts 9 companies
- Prefer
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- Provectus Algae
Investor Profile
Brian Steinberg is listed against sectors AI, Climate, Food and Hardware, and focus areas Aerospace, AgriTech, Alt Protein and Analytics in the database.
Stage-wise, the deals at At One Ventures cluster around Seed and Series A rounds.
What the affiliated firm has backed is the closest available signal on whether Brian Steinberg is worth approaching.
Colleagues at At One Ventures
Laurie Menoud
Founding Partner
Lisbon, Portugal
Luke Zhan
Principal
San Francisco, United States
Tom Chi
Founding Partner
San Francisco, United States
Lisa Noeltner
Vice President
San Francisco, United States
Helen Lin
Partner
London, United Kingdom
Frequently asked questions
Who is Brian Steinberg?
Brian Steinberg is a venture capital investor based in New York, United States, listed as Principal at At One Ventures. The known portfolio of that firm counts 9 companies. That portfolio belongs to the firm, not to Brian Steinberg personally.
What does Brian Steinberg invest in?
Listed sectors include AI, Climate, Food and Hardware; listed focus areas include Aerospace, AgriTech, Alt Protein and Analytics. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Brian Steinberg invest at?
At One Ventures appears in Seed and Series A rounds across its known deals, and Brian Steinberg is listed there as Principal. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Brian Steinberg listed at?
Brian Steinberg is listed as Principal at At One Ventures. 5 other people in the database share a firm with Brian Steinberg.
How do I contact Brian Steinberg?
An email address, a phone number and a LinkedIn page are on file for Brian Steinberg. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal