Keith Rumjahn
Angel Investor @ Oliver Wyman
Hong Kong, Hong Kong
Keith Rumjahn is a Founder & CEO at CoachBase.
- Total investments:
- 2
- Last investment:
- Lead investor:
- 50%
Last updated:
For AI agents: llms.txt
Industries Keith Rumjahn invests in
Stages Keith Rumjahn invests in
Countries Keith Rumjahn invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Web3 1 (50%)
- Computer 1 (50%)
- PC Games 1 (50%)
- Advertising 1 (50%)
- Video Games 1 (50%)
Country
- Singapore 1 (50%)
- United States 1 (50%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Joyn is a collaborative platform designed to support the large-scale co-creation of Web3 media. | $3.5M / Seed / Apr 07, 2022 | ||
| DEFY Labs is the game studio behind DEFY: the next-generation location-based RPG mobile game.The year is 2049. Players join the revolutionary hacker organisation “DEFY” to disrupt Future Systems, a huge corrupt corporation that controls the world. Become a righteous bandit and help save the world. The next-generation location-based RPG mobilegame DEFY has begun. | $3.5M / Seed / Apr 07, 2022 |
Co-Investors
About Oliver Wyman
With offices in 50+ cities across 25 countries, Oliver Wyman is a leading global management consulting firm that combines deep industry knowledge with specialized expertise in strategy, operations, risk management, and organization transformation. The firm's 3,000 professionals help clients optimize their businesses, improve their operationsand risk profile, and accelerate their organizational performance to seize the most attractive opportunities.
Oliver Wyman Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Jamie Macgregor
Partner
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Junyi Zhang
Partner Managing Partner
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Nancy Cieri
Executive Assistant to Partner
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Aaron Fine
Partner, Americas Head of Capabilities
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Abhishek Menon Ramachandran
Consultant
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FAQ
What does Keith Rumjahn invest in?
Keith Rumjahn invests primarily in Web3, Computer and PC Games startups, most often at Seed stage. Most of the 2 investments tracked by Shizune back companies in Singapore. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Keith Rumjahn?
Public channels for Keith Rumjahn include LinkedIn and X (Twitter). For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Keith Rumjahn last invest?
The most recent investment recorded for Keith Rumjahn closed in Apr 2022. Shizune tracks 2 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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