Capitol Clarity / Lobbyists / L / Matthew Leffingwell

Matthew Leffingwell: federal lobbyist

Matthew Leffingwell is named as a lobbyist on federal disclosure filings for 26 clients through Tiber Creek Group. The most recent filing naming them posted in October 2026. Issues reported include Budget/Appropriations, Health Issues, Homeland Security and Foreign Relations.

26Clients on filings
1Registrants
18Issue categories
2Years with reports

Former government positions listed

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

Clients and registrants

ClientRegistrantLatestIssues
SECURE IDENTITY, LLC (DBA CLEAR)TIBER CREEK GROUPQ3 2026Homeland Security
DELOITTE LLPTIBER CREEK GROUPQ3 2026Budget/Appropriations
MICROSOFT CORPORATIONTIBER CREEK GROUPQ3 2026Computer Industry
AIRBUS AMERICAS, INC.TIBER CREEK GROUPQ3 2026Aerospace, Defense, Aviation/Airlines/Airports
EOS ENERGY ENTERPRISES LLC (FKA EOS ENERGY STORAGE LLC)TIBER CREEK GROUPQ3 2026Trade (domestic/foreign), Budget/Appropriations, Taxation/Internal Revenue Code
MONKTON, INC.TIBER CREEK GROUPQ3 2026Telecommunications, Homeland Security
INTERNATIONAL SOCIETY OF OPTICS AND PHOTONICSTIBER CREEK GROUPQ3 2026Telecommunications, Science/Technology
ENVIRONMENTAL DEFENSE ACTION FUNDTIBER CREEK GROUPQ3 2026Environment/Superfund, Budget/Appropriations
ALTANA TECHNOLOGIESTIBER CREEK GROUPQ3 2026Trade (domestic/foreign), Homeland Security, Budget/Appropriations
AMERICAN PROPERTY CASUALTY INSURANCE ASSOCIATIONTIBER CREEK GROUPQ3 2026Insurance, Torts, Budget/Appropriations
MALARIA NO MORETIBER CREEK GROUPQ3 2026Foreign Relations, Budget/Appropriations
GIVEDIRECTLYTIBER CREEK GROUPQ3 2026Foreign Relations, Budget/Appropriations
FRIENDS OF THE GLOBAL FIGHT AGAINST AIDS, TUBERCULOSIS, AND MALARIATIBER CREEK GROUPQ3 2026Foreign Relations, Health Issues, Budget/Appropriations
ABBOTT LABORATORIESTIBER CREEK GROUPQ3 2026Foreign Relations, Health Issues, Budget/Appropriations
COALITION FOR INTERNATIONAL BROADCASTINGTIBER CREEK GROUPQ3 2026Foreign Relations, Budget/Appropriations
CHESAPEAKE CLIMATE ACTION NETWORKTIBER CREEK GROUPQ3 2026Energy/Nuclear, Budget/Appropriations
PHLOW CORPORATIONTIBER CREEK GROUPQ3 2026Health Issues, Budget/Appropriations
ORGANON, LLCTIBER CREEK GROUPQ3 2026Medicare/Medicaid, Health Issues, Budget/Appropriations
GILEAD SCIENCES, INC.TIBER CREEK GROUPQ3 2026Health Issues, Budget/Appropriations
MISSISSIPPI COUNTY, ARKANSASTIBER CREEK GROUPQ3 2026Defense, Budget/Appropriations
JAZZ PHARMACEUTICALSTIBER CREEK GROUPQ3 2026Medical/Disease Research/Clinical Labs, Health Issues, Budget/Appropriations
BEONE MEDICINES USA, INC. (FKA BEIGENE USA, INC.)TIBER CREEK GROUPQ1 2026Budget/Appropriations
CARBON REMOVAL ALLIANCETIBER CREEK GROUPQ1 2026Budget/Appropriations
FINSECATIBER CREEK GROUPQ1 2026Labor Issues/Antitrust/Workplace
INFORMATION TECHNOLOGY INDUSTRY COUNCILTIBER CREEK GROUPQ4 2025Budget/Appropriations
BREAKTHROUGH ENERGY ACTIONTIBER CREEK GROUPQ1 2025Budget/Appropriations

Activity by year

YearClientsRegistrants
2026241
2025251

Contributions reported on Form LD-203

YearItemsTotal
20265$6K

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 Matthew Leffingwell. See the Capitol Clarity rankings and method.