New York City, New York – CloserStill Media, the producer of market-leading business technology, healthcare and future transport and infrastructure events has agreed to acquire a majority stake in Ai4. The terms are not disclosed.

As the largest AI Industry event in the U.S., Ai4 is considered the premier cross-industry event for organisations harnessing AI to drive innovation and transformation. It serves as a platform for AI/ML experts, IT leadership, business CxOs, and Fortune 500 decision-makers to explore the full AI value chain - from infrastructure to applications.

It was launched in 2018 by co-founders Michael Weiss and Marcus Jecklin, who were joined by industry veteran Michelle Troop in 2019. The 3-day conference-led event is set to take place in the MGM in Las Vegas  August 11-13 before moving to the Venetian Las Vegas in 2026 to accommodate further rapid growth. The 2025 edition is set to attract 8000+ delegates, 250+ exhibitors and will host over 600+ speakers across 50+ conference tracks, as well as an innovative new 1-1 meeting and networking program.

Ai4 will seamlessly integrate into CloserStill’s well-established business technology portfolio, further strengthening its global influence and market leadership. This strategic move bolsters CloserStill’s presence and reach in the U.S. and marks its first major technology event in the region.  

Commenting on the acquisition, CloserStill CEO Gareth Bowhill said:

“We are delighted to be working with the team at Ai4 to accelerate its growth even further. The co-founders and team have built an outstanding platform, and we are committed to accelerating its future together with them.  This acquisition marks a significant strategic step for CloserStill by expanding our global technology portfolio deeper into the North American market.”

Speaking on behalf of Ai4, CRO Michelle Troop said:

“We are excited about this next chapter for Ai4. CloserStill’s approach to growth and event innovation aligns perfectly with ours. Their proven history of expanding renowned tech events makes them the ideal partner. We look forward to working together to take Ai4 to even greater heights.”

Yancy Weinrich, CloserStill President North America also commented:

“We are absolutely thrilled to welcome the Ai4 Las Vegas Event into our U.S. portfolio. This acquisition represents an exciting step forward in our commitment to advancing our tech portfolio.  We are equally delighted to collaborate with Michael, Michelle and Marcus, three incredibly talented experts in the event and AI sectors, whose knowledge and vision will be instrumental in shaping the future of Ai4. We look forward to supporting the rapid growth of this event and delivering unparalleled value to the AI community and our customers.”

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Press Contact: Rachel Kilmartin, Head of Communications, comms@closerstillmedia.com

About CloserStill

CloserStill Media specializes in high-value, content-driven events and the nurturing of B2B or professional communities. The company operates events across a wide range of sub-vertical sectors within Business Technologies, Healthcare and Future Transport and Infrastructure across the U.S., Europe and Asia, with operations and 800 staff in the U.K., U.S., Germany, Spain and Singapore.

CloserStill’s Technology Portfolio

CloserStill’s technology group operates a global portfolio of events serving clear verticals within the Enterprise, eCommerce, Martech and People (HR & corporate learning) technology markets. CloserStill’s flagship Tech Week series focuses on areas such as data centre, cloud and AI infrastructures as well as cybersecurity, big data and AI applications.

JEGI CLARITY represented Ai4 LLC in this transaction.