Sean Casey Byrne

Registered Lobbyist
Disclosed Prior Positions
Leadership Legislative Assistant, Legislative Assistant, Legislative Aide, Legislative Correspondent - U.S. Senator Chuck Schumer
Leadership Legislative Assistant, Legislative Assistate, Legislative Aide, Legislative Correspondent - U.S. Senator Chuck Schumer
Lobby Filings
112
Clients
16
Firms
1
Years Active
2022–2026
Total Contributed
$9,000
Contributions
17
Recipients
1
Contrib Filings
10
Top Recipient Legislators
No matched legislators.
Top Committees / PACs
PayeeCountTotal
SEAN BYRNE 14 $7,750
SEAN CASEY BYRNE 3 $1,250

Lobbying Filings

YearFirmClientIncomeDoc
2022
4th Quarter - Report
ACG ADVOCACY MUON SPACE $20,000
2022
4th Quarter - Report
ACG ADVOCACY PLANT MEDICINE COALITION
2022
4th Quarter - Report
ACG ADVOCACY CARBON ADVOCACY PROJECT $20,000
2022
4th Quarter - Report
ACG ADVOCACY ALASKA WILDERNESSES LEAGUE $20,000
2022
4th Quarter - Report
ACG ADVOCACY ACCESS FUND $20,000
2022
4th Quarter - Report
ACG ADVOCACY 7 ELEVEN, INC. $50,000
2022
4th Quarter - Report
ACG ADVOCACY RURAL COUNTY REPRESENTATIVES OF CALIFORNIA $50,000
2022
AMENDED
ACG ADVOCACY ACCESS FUND $10,000
2022
Registration
ACG ADVOCACY MUON SPACE
2022
3rd Quarter - Report
ACG ADVOCACY CARBON ADVOCACY PROJECT $10,000
Page 1 of 2  ·  18 filings Next

Political Contributions

Recipient / Honoree Legislator Payee / Committee Date Amount
Lobo PAC SEAN BYRNE Oct 21, 2025 $500
Senator Curtis SEAN BYRNE Jun 12, 2025 $500
Angie Craig for Congress SEAN BYRNE Jul 24, 2024 $500
Nikki Budzinski for Congress SEAN BYRNE Jul 22, 2024 $250
Don Davis SEAN BYRNE May 23, 2024 $500
Don Davis SEAN BYRNE May 23, 2024 $500
Martin Heinrich for Senate SEAN BYRNE May 7, 2024 $1,000
Sharice for Congress (Sharice Davids) SEAN BYRNE Feb 6, 2024 $500
Sharice for Congress (Sharice Davids) SEAN BYRNE Feb 6, 2024 $500
Eric Sorensen for Illinois SEAN CASEY BYRNE Oct 27, 2023 $500
Page 1 of 2  ·  17 contributions Next

Contribution Filings (LD-203)

YearPeriodPostedStatusDoc
2025 Year End Jan 30, 2026 Active
2025 Mid Year Aug 1, 2025 Active
2024 Year End Mar 6, 2025 Active
2024 Mid Year Aug 20, 2024 Active
2023 Mid Year Aug 20, 2024 Active
2023 Mid Year Aug 20, 2024 Active
2023 Year End Feb 2, 2024 Active
2023 Mid Year Aug 29, 2023 Active
2022 Mid Year Feb 15, 2023 None
2022 Year End Nov 30, 2022 Active