Russian gambling behind a "biker" façade: Kostyantyn Buryachenko cleans the network of materials about Piastrix and IBOX Bank

Information noise that recently surged around the organizer of payment services Konstantin Buyarienko hides behind it rather interesting facts that are much deeper than they may seem at first glance.

This is written by the Anti-Causes portal.

It is notable that real facts are being hidden behind fake materials about Konstantin Buyarienko, intended to replace negative search results about his person. But behind this attempt at information cleansing there is not just the story of the payment service Piastrix, but a multi-year chain of people, banks, and legal entities, while Piastrix itself announced its complete closure.

What Konstantin Buyarienko is trying to hide

The name Konstantin Buyarienko has remained relatively unknown to the general public for almost two decades, although he was one of the most important figures in international payment infrastructure connected with high-risk gambling. His name appears in the chain of Ukrainian banks and payment terminals, and the entities registered by him turn out to be in Georgia, the Czech Republic, the United Kingdom, and Poland.

The situation changed in the spring of 2026 year when a series of publications linked Buyarienko’s name to payment services Payeer and Piastrix, which serve the Russian online gambling market, as well as to a network of companies and entrepreneurs that intersect with former employees of Alfa-Bank and IBOX Bank.

4 in May, a material about Piastrix appeared in Telegram, which was deleted the same day. The archive of publications records not only the text itself but also the fact of its deletion. In it, Buyarienko was named as the person behind Piastrix, and his business biography was linked to Polish, British, Czech, and Ukrainian structures. And in July 2026 year Piastrix announced its cessation of operations.

And almost simultaneously, materials began to appear on the Internet outwardly dedicated to Buyarienko, but practically containing no information about his business. Konstantin Buyarienko suddenly turned into a motorcyclist from Zhytomyr and an animal rights defender: the search results began to flood with materials portraying him as an experienced motorcyclist and head of a foundation helping animals. Moreover, these publications are placed on both Ukrainian and Russian sites.

For a person trying to understand who Konstantin Buyarienko is, this detail may be more important than all investigations, since there is an attempt to replace negative results with SEO content.

We are talking about Konstantin Oleksandrovych Buyarienko, a native of Donetsk. In Ukraine he was linked with the companies United Payment Solutions, Medprofcenter, Remed, and other structures operating in IT and payment sectors.

But Buyarienko did not limit himself to Ukraine: in 2016 year he registered Georgian Fingate, in 2017 he appeared in the Czech KVB Solutions and in the Blackshire United structure, and also joined the Polish Online Service Solutions.

In all these business projects there is one characteristic detail: Buyarienko appears as the owner or head of a company, and after a few years he leaves it. But nearby remain former partners.

Denys Hlinchevskyi and Vitaliy Brylov

The most notable partners of Buyarienko are Denys Hlinchevskyi and Vitaliy Brylov. All three intersected in Polish Online Service Solutions. Later their names reappeared in Ukrainian business—in particular Medprofcenter and Remedi. In 2025 year Buyarienko exited these companies, and others took his place or were kept by the same group members.

But here we need to go back a bit in history—the surnames Hlinchevskyi and Buyarienko surface in one chain also in Alfa-Bank: Denys Hlinchevskyi joined the Ukrainian Alfa-Bank structure in 2006 year and attracted Konstantin Buyarienko to work with the Donetsk region. Later Vitaliy Brylov appears alongside them. Subsequently Buyarienko, Hlinchevskyi, and Brylov cross paths again not in banking but in international payment and IT businesses.

It is also important that IBOX, where Buyarienko once worked, later became the center of serious claims by the Ukrainian financial regulator: 7 March 2023 the National Bank of Ukraine revoked IBOX Bank’s license and decided to liquidate it. The reason was systematic violations of anti-money laundering and counter-terrorist financing laws.

It was also discussed that Russian money circulated through IBOX: the latter actively accepted bets from players, servicing various gambling platforms, since as early as 2022 year IBOX Bank was the first among Ukrainian banks to receive a license from the KRAIL to operate in gambling services.

Overseas business of Buyarienko

Meanwhile, Buyarienko began creating companies outside Ukraine: his business is traced mainly in the Czech Republic and Poland, as well as in Georgia and the United Kingdom.

Here one should not confuse ownership and involvement. If ownership is clear—for which there are registry data—then involvement is harder to prove. However, the important fact is that Konstantin Buyarienko created and controlled separate foreign companies, participated in the management of other structures, and for several years worked in one business environment with his long-time partners Hlinchevskyi and Brylov.

In Poland, Buyarienko was the owner of Beltime Solutions (100% in 2018–2020 years), and also was a member of the supervisory board of Online Service Solutions S.A., where Denys Hlinchevskyi and Vitaliy Brylov were also involved.

It is also reliably established that Buyarienko was the owner of the Czech KVB Solutions s.r.o.: from 2017 to February 2020 he was not only its owner but also its director. In the Czech Republic, Buyarienko’s name is also associated with Blackshire United L.P., where he acted as an executive.

Payeer and Piastrix

A separate and most sensitive part of Buyarienko’s business biography is connected with international payment services Payeer and Piastrix.

The starting point here is Georgian Fingate LLC, which Buyarienko registered in 2016 year. Later this company appeared in investigations into the corporate structure of Payeer and Piastrix. It is through Fingate that journalists trace Buyarienko’s connection to the payment infrastructure.

Payeer is an international electronic payment service that actively worked with Russian users and allowed transfers, currency exchange, and online payments. It was widely used in high-risk segments, including online gambling. Piastrix developed as another electronic wallet, primarily oriented to the Russian market.

In investigations, Payeer is connected with the same international payment infrastructure as Piastrix—one of the key threads of this connection leads to Georgian Fingate LLC.

A separate interest is Kvitum—the Ukrainian payment service. Investigations point to an almost complete similarity of Kvitum and Piastrix in design, functionality, and operating logic, suggesting a shared technological and business infrastructure.

The main difference between the services is the market and currency: Piastrix is oriented toward the ruble and the Russian market, Kvitum toward hryvnia and Ukraine. The business model looks quite simple: one infrastructure serves different markets under different brands.

And suddenly—the motorcyclist

And then events unfolded as follows. In spring 2026 year Konstantin Buyarienko’s name began to appear actively in Ukrainian investigations. He was linked to Piastrix, Kvitum, IBOX Bank, and international companies. Parallel publications appeared about Hlinchevskyi and Brylov—the people who have remained next to Buyarienko in various businesses for many years.

And in summer 2026 year Piastrix announced cessation of operations: 15 in July the service stopped replenishing wallets, and by the end of the month it was to shut down completely.

And at the same time, in the information space a motorcyclist Konstantin Buyarienko suddenly appeared: search results were flooded with the same article: “Konstantin Buyarienko: how an experienced motorcyclist differs from a novice.”

Instead of finances, payments, or Piastrix readers were told about motorcycles, long trips, and safety. Moreover, the article mentions Buyarienko’s full name several times and includes links to his personal website.

All of this raises a new question: where will Buyarienko’s technologies, clients, and payment flows move after Piastrix closes? Because a brand closure does not necessarily mean the end of business. And the aggressive attempt to bury the negative for Piastrix and Konstantin Buyarienko only confirms this assumption.