Arthur Breitman Net Worth (2025) | Co-founder of Tezos

Key Takeaways

Arthur and his wife Kathleen Breitman co-founded Tezos, a decentralised blockchain technology designed for better scalability, as a result of the Ethereum network suffering from scalability issues under high demand.

The Tezos ICO of 2017 was one of the biggest Initial coin offerings during the early adoption of cryptocurrency, as the native token generated over $232 million, the largest ICO at the time.

With the Tezos ICO raising over $230 million for its project at such an early stage, Arthur gained significant attention, as he is estimated to be worth over $500 million based on this success and other investments he must have engaged in.

Arthur Breitman is a computer scientist and applied mathematician from France who gained strong knowledge of qualitative finance and robotics. His curiosity and interest increased with blockchain technologies, where he made a name for himself creating Tezos, a layer-1 blockchain technology aimed to address the blockchain trilemma.

Who is Arthur Breitman? Qualitative Finance to Blockchain

At 18, Arthur Breitman began his programming journey at an early age, developing a strong interest in the financial world. This interest led him to create real-world programs and algorithms to assist traders in the stock market, which enabled him to secure an award at the International Olympiad in Informatics held in France.

This success in programming opened the opportunities for Arthur to earn degrees in applied mathematics and computer science at École Polytechnique in France. He further increased his knowledge by bagging a PhD in computer science from the Courant Institute of Mathematical Sciences at New York University.

Upon completing his degrees, he received lucrative job offers, working with Goldman Sachs as a qualitative analyst and as a vice president at Morgan Stanley. A few years down the line, after leaving Goldman Sachs, he co-founded his own company, Dynamic Ledger Solutions (DLS), with his wife Kathleen Breitman.

He later worked with Google X and Waymo as a researcher before making the switch to blockchain, driven by his growing interest in blockchain technologies, which he found lacked innovation while striving to remain decentralized.

A Solution to Blockchain Trilemma – Tezos

Based on his idea of solving blockchain’s trilemma problems, Arthur and Kathleen Breitman began working on blockchain solutions with hopes of providing solutions based on security, efficiency, and adaptability to evolving technologies and trends.

They named their blockchain technology Tezos, a layer-1 blockchain technology designed to address scalability issues plaguing Ethereum. This technology gained strong attention due to its innovative approach and potential in the blockchain industry.

In 2017, Tezos conducted an Initial Coin Offering (ICO) and raised over $232 million, making this ICO event the biggest ever in the blockchain space at the time. However, the project faced strong controversies over time, with Johann Gevers, head of the Tezos Foundation.

Despite having a grade opening to a potential launch, the Tezos Foundation faced criticism and dispute for some time, preventing the official launch of the blockchain technology. This situation eventually led to key member Fever resigning, receiving a payout of around $400,000, and a complete replacement of its staff.

Legal battles, allegations, and criticism from investors were all issues holding the project back from launching. However, it eventually hit the ground running in 2020 after agreeing to a $25 million settlement with the federal court orders, on the basis of selling unregistered ICO securities.

With all legal battles and uncertainties cleared, Tezos Foundation was cleared of false alarms and ready to grow under the leadership of Breitman and his team, who were ready to align their vision with the broader focus of the blockchain space.

Arthur Breitman’s Net Worth in 2025

There are no public records or clear figures pointing to Arthur Breitman’s net worth in 2025; however, speculation suggests he could potentially be worth over $500 million based on the following:

$232 million was raised for Tezos ICO, marking its project as the biggest ICO event at the time with over $7 billion market cap in 2021.

Building other blockchain-focused projects as a programmer, such as Trilitech, a Tezos subsidiary, helping projects in the blockchain space with network development and supporting third-party projects.

Also, Arthur has remained involved in the activities taking place in the Tezos ecosystem, leading the first-ever proof-of-stake concept in the crypto space.

Conclusion

Arthur Breitman and his wife Kathleen Breitman co-founded Tezos, a decentralised blockchain technology designed to address scalability issues that have plagued Ethereum for decades.

It hasn’t been all rosy for the Tezos project, as it has faced uncertainties such as criticism from investors, legal battles, and potential sabotage. However, it has remained strong, with Arthur’s contributions significantly contributing to its success.