Capitol Clarity / Lobbyists / S / Landon Stropko

Landon Stropko: federal lobbyist

Landon Stropko is named as a lobbyist on federal disclosure filings for 39 clients through Invariant LLC. The most recent filing naming them posted in October 2026. Issues reported include Energy/Nuclear, Environment/Superfund, Taxation/Internal Revenue Code and Trade (domestic/foreign).

39Clients 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
HUDSON TECHNOLOGIESINVARIANT LLCQ3 2026Trade (domestic/foreign), Environment/Superfund
TOYOTA MOTOR NORTH AMERICA, INC.INVARIANT LLCQ3 2026Communications/Broadcasting/Radio/TV, Trade (domestic/foreign), Automotive Industry
ORKORA INC.INVARIANT LLCQ3 2026Energy/Nuclear
CRITICAL ENERGY SYSTEMSINVARIANT LLCQ3 2026Taxation/Internal Revenue Code, Energy/Nuclear
KARPOWERSHIP UK LIMITEDINVARIANT LLCQ3 2026Energy/Nuclear
AVANTUS LLCINVARIANT LLCQ3 2026Taxation/Internal Revenue Code, Energy/Nuclear
CARBON REMOVAL CO., INC. DBA VAULTED DEEPINVARIANT LLCQ3 2026Environment/Superfund
POET LLCINVARIANT LLCQ3 2026Agriculture, Taxation/Internal Revenue Code, Energy/Nuclear
ARAMARK SERVICES, INC.INVARIANT LLCQ3 2026Government Issues
AMERICAN BEVERAGE ASSOCIATIONINVARIANT LLCQ3 2026Food Industry (safety, labeling, etc.), Taxation/Internal Revenue Code, Environment/Superfund
GENERAL MATTER INCINVARIANT LLCQ3 2026Defense, Energy/Nuclear
ECOLABINVARIANT LLCQ3 2026Transportation, Trade (domestic/foreign), Environment/Superfund
DAVINCI EP LLCINVARIANT LLCQ3 2026Energy/Nuclear
WYOMING RARE (USA) INC. ON BEHALF OF ARE MANAGEMENT LLCINVARIANT LLCQ3 2026Defense, Energy/Nuclear
CERES, INC.INVARIANT LLCQ3 2026Environment/Superfund
SAN LUIS & DELTA-MENDOTA WATER AUTHORITYINVARIANT LLCQ3 2026Natural Resources, Environment/Superfund
VULCAN ELEMENTS INC.INVARIANT LLCQ3 2026Defense
SEDRON TECHNOLOGIES, LLCINVARIANT LLCQ3 2026Agriculture, Taxation/Internal Revenue Code, Energy/Nuclear
STRATA ENERGY, INC.INVARIANT LLCQ3 2026Energy/Nuclear
COOK INLET REGION INCORPORATED (CIRI)INVARIANT LLCQ3 2026Indian/Native American Affairs, Small Business, Health Issues
SK AMERICAS, INC.INVARIANT LLCQ3 2026Trade (domestic/foreign), Taxation/Internal Revenue Code, Energy/Nuclear
SAN JOAQUIN RIVER EXCHANGE CONTRACTORS WATER AUTHORITYINVARIANT LLCQ3 2026Natural Resources
WATER COALITION AGAINST PFASINVARIANT LLCQ3 2026Environment/Superfund
WASHINGTON GASINVARIANT LLCQ3 2026Energy/Nuclear
CARRIER CORPORATIONINVARIANT LLCQ3 2026Trade (domestic/foreign), Taxation/Internal Revenue Code, Energy/Nuclear
GEOTHERMAL EXCHANGE ORGANIZATIONINVARIANT LLCQ3 2026Taxation/Internal Revenue Code, Energy/Nuclear
URANIUM PRODUCERS OF AMERICAINVARIANT LLCQ3 2026Defense, Energy/Nuclear
CORN REFINERS ASSOCIATIONINVARIANT LLCQ2 2026Environment/Superfund
GLASSMAN ENTERPRISES, LLC ON BEHALF OF THE COALITION FOR GREEN CAPITALINVARIANT LLCQ1 2026Energy/Nuclear
CORE POWER (US) INC.INVARIANT LLCQ1 2026Defense, Energy/Nuclear, Marine/Maritime/Boating/Fisheries
HEARTLAND WATER TECHNOLOGY, INC.INVARIANT LLCQ1 2026Environment/Superfund
ZANSKAR GEOTHERMAL & MINERALS, INC.INVARIANT LLCQ1 2026Natural Resources
VENTURE GLOBAL LNG, INC.INVARIANT LLCQ1 2026Energy/Nuclear
WETSTONE HOLDINGS LTD.INVARIANT LLCQ4 2025Natural Resources
RIOT PLATFORMS, INCINVARIANT LLCQ4 2025Financial Institutions/Investments/Securities, Taxation/Internal Revenue Code, Energy/Nuclear
JACKSON WALKER LLP ON BEHALF OF SAN MIGUEL ELECTRIC COOPERATIVE, INC.INVARIANT LLCQ3 2025Energy/Nuclear
FOCUSED ENERGY INC.INVARIANT LLCQ3 2025Energy/Nuclear
SUNNOVA ENERGY INTERNATIONALINVARIANT LLCQ2 2025Taxation/Internal Revenue Code, Energy/Nuclear
INTRINSIC EXCHANGE GROUP, INC.INVARIANT LLCQ1 2025Environment/Superfund

Activity by year

YearClientsRegistrants
2026331
2025301

Contributions reported on Form LD-203

YearItemsTotal
202610$20K

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 Landon Stropko. See the Capitol Clarity rankings and method.