Alex Seibel is a Partner at Positive Ventures, whose known portfolio counts 10 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Partner at Positive Ventures, whose known portfolio counts 10 companies
- BEMAGRO
- BackChannel
- Fourier
- Pathways Technologies
- Windfall Bio
- Beltic
- SINAI Technologies
- Funga
- FRAM
- Yuna
Investor Profile
The listing covers sectors Climate, FinTech, Food and Healthcare, and focus areas AgriTech, Biotech, Carbon and Digital Health. Startups operating in these areas may find Alex Seibel relevant.
Positive Ventures appears in Pre-Seed, Seed and Series A rounds across its known deals.
What the affiliated firm has backed is the closest available signal on whether Alex Seibel is worth approaching.
Colleagues at Positive Ventures
Bruna Constantino
Founding Partner
São Paulo, Brazil
Fábio Kestenbaum
Founding Partner
São Paulo, Brazil
Leila Orenstein
Investment Committee
Rio de Janeiro, Brazil
Gustavo Behring
Associate Partner
São Paulo, Brazil
Andrea Oliveira Kestenbaum
Founding Partner and CEO
São Paulo, Brazil
Frequently asked questions
Who is Alex Seibel?
Alex Seibel is a venture capital investor based in São Paulo, Brazil, listed as Partner at Positive Ventures. The known portfolio of that firm counts 10 companies. That portfolio belongs to the firm, not to Alex Seibel personally.
What does Alex Seibel invest in?
Listed sectors include Climate, FinTech, Food and Healthcare; listed focus areas include AgriTech, Biotech, Carbon and Digital Health. 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 Alex Seibel invest at?
Positive Ventures appears in Pre-Seed, Seed and Series A rounds across its known deals, and Alex Seibel is listed there as Partner. 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 Alex Seibel listed at?
Alex Seibel is listed as Partner at Positive Ventures. 5 other people in the database share a firm with Alex Seibel.
How do I contact Alex Seibel?
An email address and a LinkedIn page are on file for Alex Seibel. The address stays masked on this page and is readable inside RaiseHunt after you create an account. The database holds no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal