Top 5 B2B Angel Investors in Estonia in September 2025

Last updated: Sep 2025 A list of 5 angel investors that invest in B2b startups based in Estonia. We rank investors based on the number of investments they made in B2b companies from Estonia. We update this investor list every month.

Top 5 B2B Angel Investors in Estonia in September 2025

Investor	B2B Estonia investments
hi VC	2
Placeholder Placeholder	1
Matt Arnold	1
Jaan Tallinn	1
Sten Tamkivi	1

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Investor list

hi VC

Investment focus

Software, Artificial Intelligence, Information Technology
Seed, Funding Round, Pre-Seed
Turkey, Estonia, United States

Portfolio highlights

Insumo — Insumo is a personalized productivity & habit building assistant that works with other productivity tools.
Workhy — More than 20,000 entrepreneurs chose us for company formation, financial process management, tax return preparation, and bookkeeping services.
Cloud4Feed — Cloud4Feed helps businesses increase their brand values and maximize customer satisfaction by enabling them to make customer-oriented decisions with its solutions. They provide service to brands and businesses with different solutions in many areas, such as retail, automotive, insurance, finance, the hospital and health industry, and more.

Placeholder

Investment focus

Software, Transportation, Information Technology
Seed, Series A, Pre-Seed
Estonia, United States, Sweden

Portfolio highlights

Monese — Monese is a digital banking alternative that provides mobile-only, multi-currency accounts in 31 countries across the European Economic Area, for those who are underserved by the traditional banking system. It was launched in 2015 by Norris Koppel, after his first-hand experience of the hassle involved with opening a bank account in a new country.With a fully-featured and fully localized banking experience (both its apps and its customer service are available in 14 languages), Monese allows people and businesses to spend and save like locals across Europe. Its proprietary “Know Your Customer” technology can validate a customer’s identity in real-time, allowing accounts to be opened in a matter of minutes, from a mobile app.
Wwwash — Download wwwash app. Car wash - hardware and software to connect every car wash to cloud. wwwash.
Warren.io — Warren platform equips partnering providers with a white labelled self-service portal for easy access to infrastructure and managed services.

Matt Arnold is a Co-Founder and member of the Board of Directors for Solid BiosciencesMatt Arnold's background is in energy commodities. He was Managing Director of Constellation Energy Global Commodities in London from 2005 – 2009 when it was sold to Goldman Sachs.Prior to joining Constellation in 2002, Matt Arnold worked in energytrading and finance at Enron. Since 2009, Matt Arnold has been actively working with startup businesses in the UK and Europe, primarily in the technology and clean tech sectors. He holds an MS in Environmental Engineering from the University of Virginia and an undergraduate degree from Duke University.

Investment focus

B2B, Software, Information Technology
Seed
Estonia

Portfolio highlights

Plumbr — Expose metrics and set up alerts for ops. Detect and prioritize root causes for dev. Complete the devops feedback loop. Configure your application to send traces using Plumbr Agents.

Jaan Tallinn is the Co-Founder of the Centre for Study of Existential Risk and Future of Life Institute.

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.

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.