Rumi Masih, CIO and Partner at Leinster Capital is an active investor based in Scarsdale, New York. This profile covers what Rumi Masih backs, at which stage, and how founders can reach out in 2026.
Rumi Masih is CIO and Partner at Leinster Capital, with expertise in investment strategy, risk management, and structured debt for sovereign wealth funds.
Rumi Masih invests in Fintech and Climate & Energy, typically at Early Stage Venture and Late Stage Venture.
- Investor type
- VC
- Stages
- Early Stage VentureLate Stage Venture
- Invests in
- FintechClimate & Energy
- Location
- Scarsdale, New York
- Typical check
- $3.8M
How to reach Rumi Masih
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Round Funded. "Rumi Masih." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/rumi-masih
Frequently Asked Questions
Who is Rumi Masih?
Rumi Masih, CIO and Partner at Leinster Capital is an active investor based in Scarsdale, New York. Rumi Masih invests in Fintech and Climate & Energy, typically at Early Stage Venture and Late Stage Venture.
What does Rumi Masih invest in?
Rumi Masih invests in Fintech and Climate & Energy, typically at Early Stage Venture and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Rumi Masih invest at?
Rumi Masih typically invests at Early Stage Venture and Late Stage Venture. Lead with traction that fits the stage when you reach out.
What is Rumi Masih's typical check size?
Rumi Masih typically writes checks around $3.8M. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.