News of Firms: FrazierHeiby Rebrands as Slide Nine Agency

MMGY and Las Vegas-based R&R partners are joining forces under parent company MMGY Global... HarrisQuest, the brand and reputation intelligence platform from The Harris Poll, launches HarrisQuest MCP (Model Context Protocol), which lets users easily connect an AI assistant to external data and tools... Curious Orange, a Dublin-based firm that offers strategy, creative design, digital performance marketing, and AI-enabled workflows, launches Curious Orange Live, a dedicated live experiential marketing agency.

The Messina Group is rebranding as Fortius Global and opening an office in London. Jim Messina, who launched the firm in 2013 after serving as campaign manager for Obama for America, will serve as CEO of Fortius Global and continue to set the vision, strategy, and execution for Fortius and its companies... The New York Chapter of the National Investor Relations Institute names the new members of its NextGen Committee for the 2026-2027 term... Billion Dollar Boy, a social and influencer marketing agency with offices in New York and London, acquires Santa Monica, CA-headquartered Creator Authority.

Slowey McManus Communications is receiving a majority stake investment from Adi Sarosa, founder and managing partner of AA24 Communications... Seven Letter, a Washington, D.C.-based bipartisan strategic communications and public affairs firm, marks its 20th anniversary... Jack Morton launches a new global brand identity.

Peregrine, which specializes in asset and wealth management, adds a Los Angeles office to its locations in New York and London... The Dilenschneider Group, which was founded by Hill & Knowlton CEO Robert Dilenschneider, marks 35 years in business... Meltwater launches Intelligence is Always in Style, a marketing campaign based on a short-film series starring actress Kim Cattrall.

53Six, a Dublin- and London-based sports marketing agency, is acquired by Irish experience and entertainment group FUEL... Blue Highway Advisory releases a report that looks at how the shift from CEO to AI has changed the way in which consumers access information, and offers advice on how to handle the new landscape... Get Engaged, whose services include campaign ideation, social media management, influencer marketing, celebrity partnerships, content production and paid media, joins SAMY, a social-first agency headquartered in Madrid.