Brian Hackler
🏛️ Revolving DoorFormer Government Position:
Deputy Chief of Staff, U.S. Senate; State Director, U.S. Senate; Field Representative, U.S. Senate; Non-commissioned Officer, U.S. Marine Corps.
380
Total Filings
1
Firms
16
Clients
22
Issue Areas
Activity by Year
| Year | Filings | Clients |
|---|---|---|
| 2020 | 11 | 2 |
| 2021 | 87 | 11 |
| 2022 | 74 | 10 |
| 2023 | 32 | 8 |
| 2024 | 85 | 10 |
| 2025 | 91 | 11 |
Firms
Cornerstone Government Affairs, INC.380 filings
Top Clients
Greater Oklahoma City Chamber70 filings
Ou Medicine, INC.55 filings
Fista Development Trust Authority54 filings
Lugert-altus Irrigation District38 filings
Aviation Training Consulting, LLC32 filings
Berry Aviation, INC.28 filings
Wheeler Bio (FKA Wheeler Labs LLC)19 filings
3 Proton Lithium INC.14 filings
Covington Aircraft Engines INC.14 filings
The University of Arizona10 filings
Citadel Defense Company8 filings
Echo Investment Capital LLC4 filings
Bancfirst4 filings
Bedrock Gas Solutions2 filings
Tss Solutions2 filings
Data Sources: Senate LDA Filings
Last updated: February 2026
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