Apollo-backed Questex and Emerald are combining under a single chief executive, with Paul Miller, Questex’s current CEO, set to run the merged business once the transaction closes.
The leadership change comes alongside a planned handoff at Emerald: Hervé Sedky, who is currently president and CEO of Emerald, will move into a senior advisor role after closing. The companies said the deal is still expected to close in the second half of 2026.
Miller has led Questex since 2018, a period in which the company said he expanded its portfolio across hospitality, travel, healthcare, life sciences, beauty and technology. Questex said that under his leadership it achieved growth in both revenue and profit, while also broadening its use of first-party data and acquisition integration.
Apollo described Miller as the executive who will help build a scaled, customer-centric platform in the B2B events market. Sedky said the combination creates a stronger business with greater scale, broader capabilities and a larger platform for customers, exhibitors and partners.
The transaction brings together Emerald, a U.S.-based B2B event organizer, and Questex, which focuses on live events and year-round digital communities. Emerald says it operates a portfolio spanning trade shows, conferences, B2C showcases and an executive peer network, while Questex says its model centers on live events supported by data insights and digital engagement.
Apollo said that as of March 31, 2026, it had about $1.03 trillion in assets under management. As a result of these announcements, the company's shares have moved 0.0% on the market, and are now trading at a price of $5.03. For the full picture, make sure to review Emerald's 8-K report.
