The top 10 neighbors for FleishmanHillard span B2B brands, PR trade publications, news publishers, and research organizations — a mixed professional cluster with no single dominant pull.

The shape is flat: scores run from 0.97 (Ketchum) down to 0.95 (PR News at 0.96, PRWeekUS at 0.96, Pew Research Center at 0.95), a band of less than two percentage points across all ten. Similarity here measures how closely two entities' audiences resemble each other in composition; the narrow range means no neighbor stands out structurally. Three of the top 10 share FleishmanHillard's own B2B subcategory: Ketchum (0.97), Edelman (0.96), and Weber Shandwick (0.96). The remaining seven are Marketing Channels — specifically trade magazines (PRWeekUS, Ad Age), a news publisher (PR News), a podcast (NPR's Planet Money), and a research organization (Pew Research Center) — alongside Tech.co (0.95) and Adweek (0.95). The PR trade press and fellow communications firms anchor the cluster, but the presence of data-oriented media like Pew and Planet Money signals that the audience extends into analytically minded professional readers beyond the communications industry proper.

The flat shape across this top 10 reflects an audience defined by professional media consumption habits rather than loyalty to any single outlet or firm.