The Influencer Index is a ranking of executive voices and brand engagement on LinkedIn. We rank firms based on interaction and relevance using our proprietary scoring system that measures Media Points and Engagement Metrics from StackRank® to identify the firms building real influence.
For PR firms, we analyzed activity across more than 300 self-identified agencies throughout the 2025 calendar year. This is not a list of the biggest agencies. It’s a list of those earning attention through consistent, meaningful presence and audience engagement.
2026 Top Boutique Public Relations Firms - Influencer Index
Sources: ©Business Intelligence Group All Rights Reserved. All rankings are based on public LinkedIn activity between January 1 and December 31, 2025. Firms with fewer than 100 LinkedIn posts were excluded. Rankings are generated by proprietary measures using data provided by StackRank® DETAILING MEDIA footprint engagement quality, company size and other public data.