PR Firms, Marketing Agencies & Communications Companies
Highwire: Agency Profile
Highwire is a San Francisco-based public relations and integrated marketing communications agency focused on B2B technology, cybersecurity, AI, healthcare, financial services, and energy. Founded 2008. CEO Michael O'Brien (since May 2025). Independent, with a strategic investment from Shamrock Capital. Per O'Dwyer's: $41.3M in 2024 net fees, #18 US independent.