Capitol Clarity / Lobbyists / B / Sean Casey Byrne

Sean Casey Byrne: federal lobbyist

Sean Casey Byrne is named as a lobbyist on federal disclosure filings for 9 clients through Acg Advocacy. The most recent filing naming them posted in October 2026. Issues reported include Environment/Superfund, Small Business, Labor Issues/Antitrust/Workplace and Energy/Nuclear.

9Clients on filings
1Registrants
13Issue categories
2Years with reports

Former government positions listed

Filers must list covered executive or legislative branch positions held. As filed:

Clients and registrants

ClientRegistrantLatestIssues
7 ELEVEN, INC.ACG ADVOCACYQ3 2026Financial Institutions/Investments/Securities, Labor Issues/Antitrust/Workplace, Small Business
ONXMAPS, INC.ACG ADVOCACYQ3 2026Natural Resources
MUON SPACEACG ADVOCACYQ3 2026Environment/Superfund
FOODHEALTH COMPANYACG ADVOCACYQ3 2026Health Issues
ACCESS FUNDACG ADVOCACYQ3 2026Environment/Superfund
PRINTING UNITED ALLIANCEACG ADVOCACYQ2 2026Small Business, Taxation/Internal Revenue Code, Labor Issues/Antitrust/Workplace
OUTDOOR INDUSTRY ASSOCIATION (OIA)ACG ADVOCACYQ4 2025Trade (domestic/foreign), Environment/Superfund, Small Business
WINN DEVELOPMENTACG ADVOCACYQ4 2025Energy/Nuclear, Budget/Appropriations, Housing
SOLESTISSACG ADVOCACYQ1 2025Energy/Nuclear

Activity by year

YearClientsRegistrants
202661
202581

Pay is not disclosed for individual lobbyists. Filings do not confirm that records with the same name are one person, so this page may combine people who share the name Sean Casey Byrne. See the Capitol Clarity rankings and method.