Elv.ai’s media and public-sector clients now run on the TrollWall AI platform 

TrollWall AI, a Slovak company whose Moderation Agents automatically hide toxic comments on social media, has acquired its competitor Elv.ai. The deal is closed, and Elv.ai’s clients, media outlets and public institutions in Slovakia, the Czech Republic and other European countries, now run on the TrollWall AI platform. Financial terms were not disclosed. 

The Elv.ai platform has been switched off, and logging in at elv.ai is no longer possible. Existing Elv.ai clients have moved to TrollWall AI and sign in at app.trollwall.ai. Clients who haven’t received their login details can write to info@trollwall.ai. Organizations that want the same type of protection for their social media can sign up at trollwall.ai.

TrollWall AI is used in 17 countries by sports organizations, brands, media, public institutions and political parties, as well as heads of state including Czech President Petr Pavel and former Slovak President Zuzana Čaputová. Its clients include the International Ice Hockey Federation (IIHF), AC Sparta Praha, Ringier, RTL Hrvatska, O2 and the Czech Police. The acquisition comes six months after TrollWall AI raised €800,000 in investment. 

“The acquisition of Elv.ai is part of our strategy to expand and consolidate the market. Elv.ai built a strong name, and we value that its clients are now with us. They get stable, proven comment moderation technology, along with advanced tools that analyze comments and draft replies to them,” says Tomáš Halász, co-founder and CEO of TrollWall AI. 

The TrollWall AI platform automatically hides toxic comments on Facebook, Instagram, TikTok and YouTube, around the clock and in 20 languages. Beyond moderation, it analyzes the content and sentiment of comments, helps teams respond through the AI Reply Assistant, and filters out spam. Through the TrollWall AI MCP Server, clients can moderate comments directly inside AI assistants such as Claude or ChatGPT. 

TrollWall AI was founded in 2022 by Tomáš Halász, Filip Strýčko, Tomáš Koctúr and Pavol Bujňák. The idea came after Russia’s invasion of Ukraine, when Halász, then community manager for a Vice-President of the European Parliament, had to moderate thousands of toxic comments by hand every day. He went on to develop automated detection with his co-founders. 

From elves to TrollWall AI

Elv.ai began in 2022 as Elfovia.sk, a non-profit project of the Bratislava communications agency New School Communications, in response to the wave of hate, hoaxes and disinformation that followed Russia’s invasion of Ukraine. Volunteer moderators, known as “elves,” first cleaned up comment sections of media outlets and institutions by hand, and from December 2022 worked in a hybrid model with artificial intelligence. In 2023 the project spun off as a standalone startup, founded by Gabriel Tóth and Ľudovít Ďurman of New School Communications, Jakub Šuster, who became CEO, and investors Milan Dubec and CB ESPRI Impact One. CB ESPRI Impact One was also TrollWall AI’s first investor. According to company figures, Elv.ai protected hundreds of social media profiles and reviewed more than 80 million comments. 

“The sale of Elv.ai continues the story of the elves project, which we launched at New School Communications after Russian troops invaded Ukraine. From the very start, we felt how important it is to keep social media clear of hate and disinformation. That makes me all the more pleased that TrollWall AI will carry this mission forward,” says Gabriel Tóth, co-founder of Elv.ai and CEO of New School Communications. 

“Comment sections are where people form their views of brands and politicians today. Anyone who doesn’t keep them under control lets others decide their reputation. Our goal is for TrollWall AI to become the global leader in comment moderation. That is why we are expanding in Europe and the US, and the acquisition of Elv.ai is one step on that path,” adds Tomáš Halász. 

About TrollWall AI

TrollWall AI is a platform for moderating and managing social media comments. It was founded in 2022 by Tomáš Halász, Filip Strýčko, Tomáš Koctúr and Pavol Bujňák and operates in 17 countries. In April 2026 it raised €800,000 from Slovak Investment Holding (SIH), Slovenská sporiteľňa’s Seed Starter and angel investor Miroslav Fedor. Its first investor was the CB ESPRI Impact One fund. TrollWall AI has received the AI Awards (Trustworthy AI), Startup Awards Slovakia and Digital Pie awards, and in 2026 was named among the 10 finalists of the Apply AI Startup Award. More at trollwall.ai. 

Gabriel Tóth (CEO of Elv.ai) on the left, Tomáš Halász (CEO of TrollWall AI) on the right. Source: TrollWall AI