Justin Greenstein works as a corporate venture investor at 1835i Ventures. The firm's known portfolio counts 5 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Affiliated at 1835i Ventures, whose known portfolio counts 5 companies
- Airwallex
- Slyp
- DataMesh Group
- Weel
- Aider
Investor Profile
Founders in the listed sectors AI, FinTech and SaaS, and focus areas Analytics, Cloud Infrastructure, Corporate VC and Data fall inside that listing.
1835i Ventures appears in Growth, Seed and Series A rounds across its known deals.
What the affiliated firm has backed is the closest available signal on whether Justin Greenstein is worth approaching.
Colleagues at 1835i Ventures
Frequently asked questions
Who is Justin Greenstein?
Justin Greenstein is a corporate venture investor based in Melbourne, Victoria, Australia, listed at 1835i Ventures. The known portfolio of that firm counts 5 companies. That portfolio belongs to the firm, not to Justin Greenstein personally.
What does Justin Greenstein invest in?
Listed sectors include AI, FinTech and SaaS; listed focus areas include Analytics, Cloud Infrastructure, Corporate VC and Data. 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 Justin Greenstein invest at?
1835i Ventures appears in Growth, Seed and Series A rounds across its known deals, and Justin Greenstein is listed there. 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 Justin Greenstein listed at?
Justin Greenstein is listed at 1835i Ventures. One other person in the database shares a firm with Justin Greenstein.
How do I contact Justin Greenstein?
A LinkedIn page is on file for Justin Greenstein. It is readable inside RaiseHunt after you create an account. The database holds no email address and 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