Capitol Clarity / Lobbyists / C / Patrick Costello

Patrick Costello: federal lobbyist

Patrick Costello is named as a lobbyist on federal disclosure filings for 27 clients through Mercury Public Affairs, LLC. The most recent filing naming them posted in November 2026. Issues reported include Financial Institutions/Investments/Securities, Trade (domestic/foreign), Energy/Nuclear and Natural Resources.

27Clients on filings
1Registrants
19Issue categories
2Years with reports

Former government positions listed

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

Clients and registrants

ClientRegistrantLatestIssues
KEYSTONE STRATEGIC ADVISORS OBO BATRIC RADUNOVICMERCURY PUBLIC AFFAIRS, LLCQ2 2026Financial Institutions/Investments/Securities
JEFFER MANGELS BUTLER & MITCHELL LLP OBO DATELINE RESOURCES LIMITEDMERCURY PUBLIC AFFAIRS, LLCQ2 2026Natural Resources
KOREA ZINC COMPANY, LTD.MERCURY PUBLIC AFFAIRS, LLCQ3 2026Trade (domestic/foreign), Natural Resources, Taxation/Internal Revenue Code
GOTION, INC.MERCURY PUBLIC AFFAIRS, LLCQ3 2026Trade (domestic/foreign), Economics/Economic Development, Energy/Nuclear
HAIZUM ON BEHALF OF ANGIODROIDMERCURY PUBLIC AFFAIRS, LLCQ3 2026Medical/Disease Research/Clinical Labs
HELSING INCMERCURY PUBLIC AFFAIRS, LLCQ3 2026Defense, Manufacturing
CARIBBEAN PORT SERVICES S.A.MERCURY PUBLIC AFFAIRS, LLCQ3 2026Trade (domestic/foreign), Foreign Relations
DENHAM CAPITAL MANAGEMENT LPMERCURY PUBLIC AFFAIRS, LLCQ3 2026Natural Resources, Foreign Relations, Trade (domestic/foreign)
FLOCK GROUP INC D/B/A FLOCK SAFETYMERCURY PUBLIC AFFAIRS, LLCQ3 2026Homeland Security
ENDEAVOR ENERGY HOLDINGS LLCMERCURY PUBLIC AFFAIRS, LLCQ3 2026Financial Institutions/Investments/Securities
GROWTH[PERIOD] OBO WASHINGTON GAS LIGHT COMPANYMERCURY PUBLIC AFFAIRS, LLCQ3 2026Utilities
LOHUM CLEANTECH PVT LTDMERCURY PUBLIC AFFAIRS, LLCQ3 2026Financial Institutions/Investments/Securities, Natural Resources, Energy/Nuclear
NAZANIN BONIADIMERCURY PUBLIC AFFAIRS, LLCQ3 2026Foreign Relations
UL SOLUTIONS, INC.MERCURY PUBLIC AFFAIRS, LLCQ3 2026Science/Technology
VDMA AMERICA, INC.FKA VDMS AMERICA, INC.MERCURY PUBLIC AFFAIRS, LLCQ3 2026Trade (domestic/foreign), Tariff (miscellaneous tariff bills), Manufacturing
CZECHOSLOVAK GROUPMERCURY PUBLIC AFFAIRS, LLCQ2 2026Defense
RAND CORPORATIONMERCURY PUBLIC AFFAIRS, LLCQ3 2025Homeland Security
SAGINTMERCURY PUBLIC AFFAIRS, LLCQ1 2026Telecommunications, Financial Institutions/Investments/Securities, Foreign Relations
KEYSTONE STRATEGIC ADVISORS LLC OBO NOVEMBER 1ST ORGANIZATIONMERCURY PUBLIC AFFAIRS, LLCQ4 2025Financial Institutions/Investments/Securities
RSL INVESTMENT CORPORATIONMERCURY PUBLIC AFFAIRS, LLCQ4 2025Financial Institutions/Investments/Securities
KING STREET CAPITAL MANAGEMENT, L.P.MERCURY PUBLIC AFFAIRS, LLCQ4 2025Financial Institutions/Investments/Securities
COSENTINO GLOBAL S.L.U.MERCURY PUBLIC AFFAIRS, LLCQ3 2025Urban Development/Municipalities
SV MANAGEMENT SWITZERLAND AGMERCURY PUBLIC AFFAIRS, LLCQ3 2025Financial Institutions/Investments/Securities, Natural Resources, Trade (domestic/foreign)
AMERICAN CHAMBER OF COMMERCE IN MYANMARMERCURY PUBLIC AFFAIRS, LLCQ3 2025Trade (domestic/foreign)
INNOVATIVE LEGAL SERVICES, P.C. OBO BOT AUTO, INC.MERCURY PUBLIC AFFAIRS, LLCQ2 2025Transportation
SHUTTERSTOCKMERCURY PUBLIC AFFAIRS, LLCQ2 2025Telecommunications
ALPHAMIN RESOURCES CORPMERCURY PUBLIC AFFAIRS, LLCQ2 2025Commodities (big ticket)

Activity by year

YearClientsRegistrants
2026171
2025181

Contributions reported on Form LD-203

YearItemsTotal
20261$500

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 Patrick Costello. See the Capitol Clarity rankings and method.