Why it matters: Informa’s live B2B events reported underlying revenue growth of 8.5% in H1. Informa’s live B2B events reported underlying revenue growth of 8.5% in H1, Informa Group CEO Carter said. Informa attributed the double-digit increase to “strong underlying growth and the benefit of last year’s portfolio expansion.”2. Strong underlying growth: Underlying revenues grew 7.8% and underlying adjusted operating profit 9.2% in H1 2025. Upgraded full-year guidance: Underlying revenue growth guidance increased from 5%+ to 6%±, including 8%+ in live B2B Events.