Kate Hallahan
🏛️ Revolving DoorFormer Government Position:
2006-16, US House: Dem Clerk, Trans Approp SubCmte; 2001-06, US Senate Prof Staff, Sen Trans Approp SubCmte); 2000-01, FAA Dpty Asst Admnstr for Gov & Industry Affairs; 1997-2000, US DoT, Sr Policy Advsr; 1996-97, US DoT: Spec. Asst to the Secy.
🤖
AI Overview
Kate Hallahan has appeared in 456 federal lobbying filings at Team Hallahan LLC, representing 30 clients. As a former government official, they bring insider expertise to their lobbying work — part of Washington's "revolving door." Active across 15 policy areas.
456
Total Filings
1
Firms
30
Clients
15
Issue Areas
Issue Areas
Filing History
| Year | Filings | Clients |
|---|---|---|
| 2018 | 26 | 8 |
| 2019 | 44 | 12 |
| 2020 | 47 | 13 |
| 2021 | 77 | 20 |
| 2022 | 79 | 23 |
| 2023 | 76 | 20 |
| 2024 | 62 | 18 |
| 2025 | 45 | 12 |
Firms
Team Hallahan LLC456 filings
Top Clients
National Business Aviation Association32 filings
Delta Air Lines31 filings
Molson Coors Beverage Company USA LLC24 filings
Dp Facilities INC.22 filings
Juniper Networks20 filings
Amazon Web Services20 filings
Alkermes, INC.19 filings
Leidos, INC.16 filings
Aireon LLC14 filings
Boom Technology13 filings
Kongsberg Defence and Aerospace INC.10 filings
Related Analysis
Related Investigations
The Revolving Door Exposed
How former government officials become the most powerful lobbyists.
Big Pharma's $452M Lobbying Machine
How pharmaceutical companies spend hundreds of millions to influence health policy.
The Crypto Lobbying Explosion
How crypto went from zero to massive lobbying presence.
The Defense Lobby
Defense contractors spend millions lobbying for contracts worth billions.
Federal Lobbying Statistics 2025
The definitive stats — $37.7B total, industry breakdowns, and trends.
What Is Lobbying? A Complete Guide
How lobbying works, who does it, and why it matters.
Explore More
Data Sources: Senate LDA Filings
Last updated: February 2026
This site is an independent journalism project. Analysis and editorial content are not affiliated with or endorsed by any government agency.