# Thorn Run Partners The **#9 lobbying firm in DC by 2025 revenue ($32.38M, 263 clients)**. Founded January 2010 by a deliberate cross-party pair — Andrew Rosenberg (former aide to Sen. Ted Kennedy) and Chris Lamond (former aide to Sen. Fred Thompson) — Thorn Run's D-founder/R-founder origin is its core identity and sales pitch: structural bipartisanship as product. ## Practice The flagship vertical is **healthcare and life sciences**, with substantial financial services, technology, transportation, education, and renewable-energy books. The firm cracked the top 10 after what Bloomberg Government, Politico, and The Hill all described as a year of record growth in the [[2025 Record Lobbying Year]], and expanded into federal-funding pursuit with a six-person grants/appropriations practice group. A ~59-person shop, it is the smallest firm in the top 10 by headcount — a boutique running at institutional-firm revenue. ## Revolving door Beyond the founders' Kennedy/Thompson lineage, partners include Mary Thien Hoang, former chief of staff of the Federal Maritime Commission; the firm markets its bench as Capitol Hill veterans with over a century of combined federal experience. No Trump-world personnel bench has been identified — its access model is committee-and-staff-based, like [[Cornerstone Government Affairs]], rather than proximity-based like [[Ballard Partners]]. ## FARA No FARA foreign-principal registration surfaced as of July 2026. ## See also [[Lobbying Hub]] · [[Lobbying]] · [[Revolving Door]] · [[Cornerstone Government Affairs]] · [[2025 Record Lobbying Year]]