Built for what regulated financial
institutions actually need.
Havenex was founded by a team with deep roots in both traditional finance and digital asset infrastructure - because we saw firsthand what was missing.
Our Mission
Bridge the gap between traditional finance and the digital asset ecosystem.
Our Approach
Regulated infrastructure first - security and compliance are non-negotiable.
Our Focus
European institutions - from banks and fintechs to family offices and funds.
The crypto industry is entering a new phase.
Blockchains are becoming economic systems. They produce value, they consume resources, and they compete for capital. The right way to understand them is not as abstract technologies, but as businesses. capital will flow to systems that generate real activity, real yield, and real demand.
At the same time, money itself is being redefined. Stablecoins are emerging as a superior form of digital cash for a growing set of use cases. They move instantly, globally, and programmatically and remove friction. Over time, this will not replace fiat, but it will outcompete it wherever efficiency matters.
In parallel, financial assets are moving on-chain. Markets that were historically gated-by geography, by regulation, or by minimum investment thresholds-are becoming accessible. Tokenization is not a niche innovation. It is the restructuring of capital markets into something that is continuous, global, and programmable.
These three forces-productive blockchains, stablecoin-based money, and tokenized assets-define the next era of finance.
The constraint is no longer technology. It is access.
The principles
we don't compromise on.
Four things guide every decision we make - in product, in operations, and in how we work with clients.
Compliance first, always.
We don't build features that outrun the regulatory framework. Every capability ships compliant or it doesn't ship. This isn't caution - it's our competitive advantage
Institutional by design.
Our baseline is institutional grade. We don't offer a "enterprise tier" - every client gets the same custody standards, the same compliance rigour, the same reporting quality.
Transparent in everything.
Proof-of-reserves reporting. Open audit trails. Clear fee structures. In an industry where opacity has caused catastrophic failures, we choose to show our working.
Top Tier Technology
API-first and composable - deploy what you need, when you need it, without rebuilding compliance from scratch. Best-in-class technology, built to be modular.
We are an experienced team who have built companies in the regulated fintech space before.
Gregorios Siourounis
Co-Founder
Co-Founder of xMoney Global AG and EveryPay, former MD and Board Member of the Sui Foundation.
Adeniyi Abiodun
Board Member
Co-Founder and Chief Product Officer of Mysten Labs, former Head of Product at Meta's Novi, with earlier roles at Oracle and VMware.
Kostas Chalkias
Co-Founder
Co-Founder and Chief Cryptographer of Mysten Labs, former cryptography lead on Meta's Diem and Novi projects and Lead Cryptographer at R3.
Thanasis Noulas
CEO
Previously at Bitvavo, Trade Republic, and AirBnB. Brings deep expertise in crypto exchange operations and consumer finance.
Bayar Ali
CFO
Formerly of PwC, Mastercard, CoinPayments and xMoney. Strong background in financial services, digital asset treasury management and financial operations.
Corvin Codirla
Brokerage
Formerly of BLADEX, Deutsche Bank, Barclays Capital, Brevan Howard, JPM. Deep knowledge of brokerage and portfolio management.
Estelle Merle
BD
Formerly of Goldman Sachs, Co-founder of topi and Director at Via bringing traditional finance, B2B fintech and early-stage startup experience.
We're hiring people
who take this seriously.
If you want to work at the intersection of regulated finance and digital asset infrastructure - and you're done with companies that treat compliance as an afterthought - we'd like to hear from you.
Headquartered in Vienna,
at home in Europe
Havenex Group is headquartered in Vienna - one of Europe's most established financial centres and a growing hub for regulated fintech. We are incorporated, in the authorisation process with the Austrian Financial Market Authority (FMA), and actively growing our team.
Havenex AG
Bankgasse 1
1010 Vienna,
Austria
Registered FN: 673083 d
UstID: ATU83269017
Have a question, a use case to discuss, or just want to talk to a real person? We're happy to hear from you.