Greg Siourounis

Co-Founder & Group CEO @HavenexHQ

[Havenex @HavenexHQ]

People ask why we chose Vienna as the home base for a digital asset infrastructure company.

The answer is simple: we're building for European financial institutions and the rulebook is European.

Austria is the right place for us. A forward-thinking FMA that knows this market, takes it seriously, and sits in the same time zone as the firms it oversees.

https://t.co/wrktvVxzPj

[Havenex @HavenexHQ]

In Barcelona for @EBlockchainCon? 🇪🇸

@bayar_ali will be there between 16-17 September.

If you want to have a conversation about how European Financial Institutions will handle digital assets, find him and say hello.

https://t.co/Dkkbbl8T9r

[Havenex @HavenexHQ]

Your clients see your name, your app, your relationship.

The infrastructure underneath stays out of sight, which is the whole premise.

https://t.co/Dkkbbl8T9r

[Havenex @HavenexHQ]

Custody.
Trading.
Brokerage.
Yield-generating products.

One integration, under your brand, on your existing risk framework. The same processes you already run, applied to a new asset class.

Learn more: https://t.co/Dkkbbl8T9r

[Greg Siourounis @HavenexGreg]

.@bayar_ali has spent years inside regulated finance and digital-asset operations. If you’re a bank, fintech or asset manager still mapping custody, control and compliance, he’s the person to speak with.

Attending @EBlockchainCon in Barcelona next week? Reach out to him and set up a meet.

[Havenex @HavenexHQ]

.@bayar_ali, Managing Director & Group CFO at Havenex, will be at the European Blockchain Convention (@EBlockchainCon) in Barcelona on 16–17 September.

If you are a bank, fintech or asset manager working through what institutional digital asset infrastructure actually requires - custody, control, compliance - come and say hello.

Not a pitch deck. A conversation about what your institution actually needs.

[Havenex @HavenexHQ]

Banks.
Fintechs.
Asset managers and funds.

Three different business verticals, one shared conversation: clients asking for digital assets.

The demand is here and we’re building the infrastructure underneath.

https://t.co/wrktvVxzPj

*Havenex is in the authorisation process with the Austrian Financial Market Authority. We do not provide regulated services prior to authorisation.

[Havenex @HavenexHQ]

Institutional clients want custody that can sit inside an existing control framework.

We've designed our platform around institution-grade cold and warm storage, built to regulated standards - with automated, transaction-level compliance, audit-ready reporting and live counterparty visibility.

Same standard for every client.

No separate “Enterprise Tier.”

https://t.co/wrktvVxzPj

[Greg Siourounis @HavenexGreg]

Compliance first, always.

[Havenex @HavenexHQ]

Compliance first, always.

We don’t build features that outrun the regulatory framework. Every capability ships compliant, or it doesn’t ship.

That is not caution. It is the competitive advantage.

https://t.co/Dkkbbl8T9r

[Havenex @HavenexHQ]

Havenex is being built as one secure connection.

Designed so institutions can offer regulated custody, institutional trading, brokerage and yield-generating products under their own brand - without having to build the stack themselves.

White-label. Fully managed. Your risk framework stays intact.

https://t.co/wrktvVxzPj

[Havenex @HavenexHQ]

The old way:

Custody - fragmented across unregulated third parties.
Compliance - manual and retrospective.
Reporting - exported and reconciled by hand.
Risk - opaque, with no live view of counterparties.

That stack does not survive contact with a bank risk committee.

That's where we come in.

https://t.co/wrktvVxzPj

[Havenex @HavenexHQ]

Havenex is not trying to become another retail exchange.

The focus is different: infrastructure that lets banks, Fintechs, asset managers and funds offer digital assets to their customers - while meeting the standards they already expect around regulation, custody, security and control.

Built for institutions. Not built around a consumer front end.

*Havenex is in the authorisation process with the Austrian Financial Market Authority. We do not provide regulated services prior to authorisation.

[Greg Siourounis @HavenexGreg]

@SuiGkim @HavenexHQ @xMoney_com Thank you @SuiGkim, appreciate it! 🙏

[Greg Siourounis @HavenexGreg]

Today’s @HavenexHQ announcement raised questions about @xMoney_com.

I feel like I should answer them directly.

The work we started - regulated payments, stablecoin infrastructure, real merchant rails - is still underway, and it will succeed.

For the avoidance of doubt, Havenex is a completely separate and independent project from xMoney.

There has been no change whatsoever to my role, rights, or existing arrangements with xMoney, all of which remain fully intact. Nothing in the announcement should be interpreted as altering my position or commitments in relation to xMoney.

xMoney has a strong operating team. Day-to-day leadership now sits with the people who have been building it. That is the right structure for the next phase of growth.

Havenex does not replace that work. The xMoney story is not over. I am still here for it.

Naturally, positive developments in any project in which I am involved can benefit the broader ecosystem. I remain pleased and committed to contributing constructively to all the projects in which I participate.

[Greg Siourounis @HavenexGreg]

Today we introduce @HavenexHQ!

Grateful to be leading this with a team that has already built in regulated fintech, markets and infrastructure.

That combination is rare. It's also the only way this gets done properly.

More soon.

[Havenex @HavenexHQ]

Banks and Fintechs shouldn’t have to build digital-asset infrastructure from scratch.

Havenex is building institutional-grade infrastructure for European financial institutions: custody, trading, brokerage and yield-generating products - under your brand.

Vienna-based. Built for professional and institutional clients.

Your clients. Your experience. We enable behind the scenes.

*Havenex is in the authorisation process with the Austrian Financial Market Authority. We do not provide regulated services prior to authorisation.

https://t.co/wrktvVxzPj

[Greg Siourounis @HavenexGreg]

Today’s @HavenexHQ announcement raised questions about @xMoney_com

I feel like I should answer them directly.

The work we started - regulated payments, stablecoin infrastructure, real merchant rails - is still underway, and it will succeed.

For the avoidance of doubt, Havenex is a completely separate and independent project from xMoney.

There has been no change whatsoever to my role, rights, or existing arrangements with xMoney, all of which remain fully intact. Nothing in the announcement should be interpreted as altering my position or commitments in relation to xMoney.

xMoney has a strong operating team. Day-to-day leadership now sits with the people who have been building it. That is the right structure for the next phase of growth.

Havenex does not replace that work. The xMoney story is not over. I am still here for it.

Naturally, positive developments in any project in which I am involved can benefit the broader ecosystem. I remain pleased and committed to contributing constructively to all the projects in which I participate.

[xMoney.com @xMoney_com]

Create.
Share.
Get paid.

https://t.co/SXgbnvdcsF

[xMoney.com @xMoney_com]

Pick what you need.
Connect what you already have.

And build around your business, safely and compliantly ✅

[Greg Siourounis @HavenexGreg]

https://t.co/YaiY9jOz3c

[xMoney.com @xMoney_com]

The invoice hasn't changed. But the way it's paid has.

xMoney now integrates with SmartBill, allowing businesses to generate invoices directly from the xMoney dashboard and attach a payment link so customers can pay instantly by card.

Recurring invoices?
Also built in ✅

One integration, same workflow.
And a much better payment experience.

[Greg Siourounis @HavenexGreg]

@b1ackd0g Κόσμον τόνδε, τον αυτόν απάντων, ούτε τις θεών ούτε ανθρώπων εποίησεν, αλλ' ην ��εί και εστιν και ειναι πυρ αείζωον, απτόμενον μέτρα και αποσβεννύμενον μέτρα, Heraclitus (484 bc)…