Top 5 Email Startup Investors in Estonia in May 2026
Top 5 Email Startup Investors in Estonia in May 2026
| Investor | Email Estonia investments |
|---|---|
| Jaan Tallinn | 3 |
| Priit Kasesalu | 2 |
| Sten Tamkivi | 1 |
| Ahti Heinla | 1 |
| Cambridge Angels group | 1 |
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Jaan Tallinn is the Co-Founder of the Centre for Study of Existential Risk and Future of Life Institute.
Show more...Investment focus
- Software, Artificial Intelligence, Internet
- Seed, Funding Round, Series A
- United States, Estonia, United Kingdom
Portfolio highlights
- LawZero — LawZero is committed to advancing research and creating technical solutions that enable safe-by-design AI systems.
- TENYX — Discover innovative solutions for digital transformation at Tenyx. Explore our cutting-edge technology services designed to drive business growth and elevate your digital presence.
- Lightyear — Lightyear is a simple and approachable way to invest your money globally without unnecessary barriers and fees.
Priit is heavily involved in assessing all of ASI's new technology investments.Before ASI, Priit played an integral role in developing Kazaa and later Skype; indeed, he continues to work at Skype as a core library developer.While cryptography and data communication are his areas of expertise, his other passion is computer gamedevelopment. Together with Ahti and Jaan, he wrote the first Estonian commercial computer game, Kosmonaut.When he isn't using his innate ability to solve complex technical problems, Priit enjoys good company, gourmet restaurants and biking.He holds a degree in automation and system technology from Tallinn University of Technology.
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- iOS, Apps, Email
- Seed
- Estonia
Portfolio highlights
- Fleep — Fleep is a web, Android, iOS, Mac and Windows app that wants to bridge the gap between ‘reply all’-style group email and enterprise messaging/IM services.Founded by ex-Skypers, Fleep is a messaging service that fills the gap between email and various IM/texting services. They take email’s ability to contact anyone and marry it withreal-time messaging.They are based in Estonia, with offices in Tallinn and Tartu. Their services are hosted on Amazon EC2 in Dublin, Ireland.
Sten Tamkivi is the Chief Product Officer at Topia (formerly MOVE Guides). He was previously co-founder and CEO of Teleport (acquired by Topia), the place to scout for startup people. He co-founded the company as an EIR at Andreessen Horowitz.Sten has been a tech entrepreneur since 1996. After founding a few companies in Estonia, he joined Skypeas an early executive, ran the original R&D office, and held several global product leadership roles for 8+ years.He has an MS in Management from Stanford GSB.
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- Software, Artificial Intelligence, Manufacturing
- Seed, Series A, Pre-Seed
- Estonia, United States, United Kingdom
Portfolio highlights
- Katana — Katana gives thousands of manufacturers a live look at their business with visual, intuitive, and easy-to-use ERP software.
- Insempra — Origin.Bio creates synthetic microorganisms that can make many of the same ingredients as traditional chemical industrialization processes today, but with significantly fewer energy requirements and waste produced while eradicating the need for petrochemicals.The company drives the convergence of engineering with biology, using DNA as theprogramming language. Rather than editing genetic material only in or out of DNA, engineers can hack entirely new organisms that have never existed — all powered by computing, automation, and artificial intelligence (AI)/machine-learning while leveraging millions of years of evolution. Operating at an atomic level, the company farms organisms with microscopic precision and integrates them into existing original equipment manufacturer (OEM) manufacturing processes. This asset-light approach enables Origin.Bio to generate sustainable materials at speed in a cost-effective way, without compromising on performance.
- Entrepreneurs First — We turn exceptional individuals into funded founders. We back you first, then give you a bridge to Silicon Valley.
Ahti is the CEO, CTO and co-founder in Starship Technologies, a startup that intends to disrupt last-mile delivery by introducing self-driving local delivery robots. He is also a co-owner in Ambient Sound Investments, a private investment vehicle launched by Estonian Skype co-founders.Ahti conducts technical reviews of all ASI's potentialinvestments. His experience and knowledge as a system architect is invaluable in assessing and managing ASI's portfolio companies.Ahti picked up programming at the early age of ten, his fascination with all things technical resulting in him being the lead technical architect at Skype. Ahti has also worked on artificial intelligence, 3D graphics engines, signal processing, and building mobile phones.Out of the office, Ahti dons his running gear to enjoy orienteering and adventure racing events, where navigation is his strong-point.
Show more...Investment focus
- Apps, Internet, Software
- Seed, Angel, Series A
- Estonia, United States
Portfolio highlights
- Fleep — Fleep is a web, Android, iOS, Mac and Windows app that wants to bridge the gap between ‘reply all’-style group email and enterprise messaging/IM services.Founded by ex-Skypers, Fleep is a messaging service that fills the gap between email and various IM/texting services. They take email’s ability to contact anyone and marry it withreal-time messaging.They are based in Estonia, with offices in Tallinn and Tartu. Their services are hosted on Amazon EC2 in Dublin, Ireland.
- LIFT99 — LIFT99 is a coworking hub and network of startup founders in Tallinn, Estonia, and Kyiv, Ukraine. In 2018, we launched our Skillsharing Platform for founders around the world.
- Swap.com — Swap is an online consignment and thrift store shop high-quality secondhand clothes. Shop the best brands at up to 90% off.
The Cambridge Angels are a group of high-net worth investors who have proven experience as successful entrepreneurs in internet, software, technology and bio-technology. Members invest in and mentor high quality start-up and early-stage companies in these sectors in the Cambridge (UK) area and throughout the UK.Typical funding requirements thatthe Cambridge Angels meet are in the range of £50,000 to £500,000 - although it is worth noting that several of their portfolio companies have received more than £1m in funding from their Members over several funding rounds.Their Members have been responsible for a large number of the “Cambridge Phenomenon” success stories over recent years. Therefore, in addition to providing funding for early-stage companies, the Cambridge Angels also offer start-ups the considerable benefit of a wide range of expertise, contacts and directly relevant experience in establishing and growing entrepreneurial businesses successfully.
Show more...Investment focus
- Software, Health Care, Biotechnology
- Seed, Funding Round, Series A
- United Kingdom, United States, Estonia
Portfolio highlights
- FLIT — Unfold Your Next Adventure. Discover the compact folding electric bike purpose-built for commuters, urban explorers and weekend tourers.
- Wilder Sensing — Wilder Sensing analyses audio and other data sources to produce actionable insights into the status and trends of biodiversity on your site.
- AVIEL Intelligence — Prevent APP fraud with the highest quality of intelligence. Use AVIEL intelligence to help prevent your customers making payments to scammers - and from receiving payments related to scams.
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