Gyorgy Simo
Managing Partner, CEO @ Day One Capital
Gyorgy Simo is a CEO at Leopoly.
- Total investments:
- 5
- Last investment:
- Lead investor:
- 20%
Last updated:
For AI agents: llms.txt
Industries Gyorgy Simo invests in
Stages Gyorgy Simo invests in
Countries Gyorgy Simo invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Security 1 (20%)
- Software 1 (20%)
- Agentic AI 1 (20%)
- Collaboration 1 (20%)
- Cloud Security 1 (20%)
Stage
- Series A 2 (40%)
- Series B 2 (40%)
- Seed 1 (20%)
Country
- Romania 1 (20%)
- Switzerland 1 (20%)
- Czech Republic 1 (20%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| FLOWX.AI wraps and orchestrates legacy systems, allowing enterprises to create web and mobile front-ends for mission-critical business flows. The revolutionary AI-enabled Apeiron UX engine is able to automatically create a modern, intuitive front-end for customers and employees, helping to consolidate in a unified UI all the business logic acrosssystems. This enables companies with complex technology landscapes to create and launch mission-critical digital products quickly and then facilitate an easy path forwards to full digital transformation. The revolutionary novel approach is 100 times cheaper than existing alternatives. FLOWX.AI allows delivery of enterprise-grade mobile and web digital front-ends in as little as 10 weeks and requires much smaller engineering teams. | $35M / Series A / May 22, 2023 | ||
| FLOWX.AI wraps and orchestrates legacy systems, allowing enterprises to create web and mobile front-ends for mission-critical business flows. The revolutionary AI-enabled Apeiron UX engine is able to automatically create a modern, intuitive front-end for customers and employees, helping to consolidate in a unified UI all the business logic acrosssystems. This enables companies with complex technology landscapes to create and launch mission-critical digital products quickly and then facilitate an easy path forwards to full digital transformation. The revolutionary novel approach is 100 times cheaper than existing alternatives. FLOWX.AI allows delivery of enterprise-grade mobile and web digital front-ends in as little as 10 weeks and requires much smaller engineering teams. | $8.5M / Seed / Nov 09, 2021 | ||
| Whalebone provides zero-disruption protective DNS (PDNS) cybersecurity solutions designed for telcos, ISPs, critical-infrastructure enterprises, and government/public institutions. It provides millions of internet users with seamless digital life protection, keeping them secure against malware, phishing, ransomware, and other malicious digitalattacks – without the need to download anything. The European Commission has recognized Whalebone’s exceptional capabilities by appointing it the Consortium Leader for the European Union’s DNS4EU initiative. As the sole developer and operator of the official DNS resolver for the EU, in collaboration with a consortium of 13 members from 10 countries, governments and enterprises can leverage Whalebone's expertise in securing DNS servers to protect against evolving digital threats.The success of Whalebone Aura among global T1 telco providers validates the company’s ability to deliver robust DNS security that is effective, user-friendly, and brings value to their business. Whalebone’s products also include Peacemaker (for regional ISPs), Immunity (for enterprises), and DNS4GOV, all of which have proven instrumental in defending against threats to global DNS.Whalebone has more than 300+ customers around the globe and 100+ team members worldwide, with a mission is to bring cybersecurity to 1 billion people. | $3M / Series A / May 05, 2021 | ||
| Tresorit is a cloud-based, secure file synchronising software, specifically designed to share confidential data of business users. The software is suitable for making shared directories in a way that the files in the directories are encrypted before uploaded and the encrypted file will get into the cloud. When downloading the file from the cloud itis decryptable only when permitted by the owner. Other users are unable to decode its contents. The special feature of Tresorit is that the encrypted contents are shareable without re-encryption and that sharing is reversible by permission revocation. | $13.1M / Series B / Dec 21, 2018 | ||
| Whalebone provides zero-disruption protective DNS (PDNS) cybersecurity solutions designed for telcos, ISPs, critical-infrastructure enterprises, and government/public institutions. It provides millions of internet users with seamless digital life protection, keeping them secure against malware, phishing, ransomware, and other malicious digitalattacks – without the need to download anything. The European Commission has recognized Whalebone’s exceptional capabilities by appointing it the Consortium Leader for the European Union’s DNS4EU initiative. As the sole developer and operator of the official DNS resolver for the EU, in collaboration with a consortium of 13 members from 10 countries, governments and enterprises can leverage Whalebone's expertise in securing DNS servers to protect against evolving digital threats.The success of Whalebone Aura among global T1 telco providers validates the company’s ability to deliver robust DNS security that is effective, user-friendly, and brings value to their business. Whalebone’s products also include Peacemaker (for regional ISPs), Immunity (for enterprises), and DNS4GOV, all of which have proven instrumental in defending against threats to global DNS.Whalebone has more than 300+ customers around the globe and 100+ team members worldwide, with a mission is to bring cybersecurity to 1 billion people. | $13.9M / Series B |
Co-Investors
About Day One Capital
Day One Capital is an early-stage venture capital fund that works with entrepreneurs and technology start-ups from Europe. As an early-stage technology investor, managing privately financed funds, Day One Capital seeks to find and join the most exciting Central Eastern European teams on their global mission.
Day One Capital Contacts
| Name | Phone | Socials | |
|---|---|---|---|
András Fehér
Associate
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Csaba Kakosy
Managing Partner
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Dóra Branyiczki
Principal
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Elek Straub
Managing Partner and Chairman of the Board
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Gyorgy Simo
Managing Partner, CEO
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FAQ
What does Gyorgy Simo invest in?
Gyorgy Simo invests primarily in Security, Software and Agentic AI startups, most often at Series A and Series B stage. Most of the 5 investments tracked by Shizune back companies in Romania. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Gyorgy Simo?
Public channels for Gyorgy Simo include LinkedIn. 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 Gyorgy Simo last invest?
The most recent investment recorded for Gyorgy Simo closed in May 2023. Shizune tracks 5 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 Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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