Jendrik Poloczek
Principal Research Engineer @ Greenfield
Jendrik Poloczek is a seed investor at Greenfield focused on Web3 and Bitcoin. Jendrik Poloczek is the Principal Research Engineer at Greenfield Capital.
- Total investments:
- 4
- Last investment:
- Lead investor:
- 75%
Last updated:
For AI agents: llms.txt
Industries Jendrik Poloczek invests in
Stages Jendrik Poloczek invests in
Countries Jendrik Poloczek invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Web3 1 (25%)
- Bitcoin 1 (25%)
- Ethereum 1 (25%)
- Hardware 1 (25%)
- Blockchain 1 (25%)
Country
- Switzerland 1 (25%)
- United States 1 (25%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Drosera is a decentralized incident response system that uses hidden security intentions to contain and mitigate attacks. | $3.3M / Seed / Feb 10, 2025 | ||
| Arcium is a parallelized confidential computing network that provides trustless, verifiable and efficient encrypted computation. Arcium implements Multiparty Computation Execution Environments (MXEs) that combine MPC, homomorphic encryption, zero-knowledge proofs, and more to enable computation on encrypted data. | $5.5M / Seed / May 09, 2024 | ||
| Stroom Network is a liquid staking protocol in bitcoin lightning network. | $3.5M / Seed / Aug 31, 2023 | ||
| Foundation Devices builds the open hardware foundation for Bitcoin and the sovereign Internet.They started Foundation Devices to make beautifully designed, open-source hardware for Bitcoin and the decentralized Internet. To bring great design and UX to hardware wallets, nodes, and more. To empower individuals to securely use and store Bitcoinwhile maintaining their sovereignty. To help our industry cross the chasm while staying true to its founding ideals. We call this open hardware. And we are excited to bring it to the world! | $7M / Seed / Dec 19, 2022 |
Co-Investors
About Greenfield
We are long-term backers of early developer teams building toward an open, decentralized and more robust architecture of tomorrow’s web.
Greenfield Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Claude Donzé
Principal
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Felix Machart
Partner
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Jascha Samadi
Co-Founder and Partner
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Jendrik Poloczek
Principal Research Engineer
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Sebastian Blum
Co-Founder and Partner
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FAQ
What does Jendrik Poloczek invest in?
Jendrik Poloczek invests primarily in Web3, Bitcoin and Ethereum startups, most often at Seed stage. Most of the 4 investments tracked by Shizune back companies in Switzerland. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Jendrik Poloczek?
Public channels for Jendrik Poloczek include LinkedIn, X (Twitter) and the website linked on this profile. 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 Jendrik Poloczek last invest?
The most recent investment recorded for Jendrik Poloczek closed in Feb 2025. Shizune tracks 4 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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