Landon Stropko

🏛️ Revolving Door

Former Government Position:

Leg. Dir., Sen. Mike Enzi (2017-2018); Rep. Cynthia Lummis (2009-2016): Chief of Staff (DC), Leg. Dir., Sr. Leg. Asst, Leg. Asst; Rep. Barbara Cubin (2003-2008): Sr. Leg. Asst, Leg. Asst, Leg. Aide, Leg. Correspondent, Intern

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AI Overview

Landon Stropko has appeared in 1,233 federal lobbying filings at Invariant LLC, representing 50 clients. As a former government official, they bring insider expertise to their lobbying work — part of Washington's "revolving door." Active across 42 policy areas.

1,233
Total Filings
1
Firms
50
Clients
42
Issue Areas

Issue Areas

AVIENVENGTRDTECRESLBRDEFFORHOUCPIVETHOMIMMGOVMANTAXAUTCSPBUDTOULAWFINCHMHCRTRAAGRFOOSCIDISSMBAERRODCAWBANCIVEDUPHANATCOMINDECN

Filing History

YearFilingsClients
20187316
201911922
202015629
202117330
202216325
202318423
202419025
202517530

Firms

Invariant LLC1233 filings

Top Clients

Toyota Motor North America, INC.89 filings
American Beverage Association86 filings
Carrier Corporation80 filings
Poet LLC73 filings
Geothermal Exchange Organization58 filings
Sk Hynix America INC.49 filings
Solugen, INC.42 filings
Ecolab42 filings
Sunnova Energy International42 filings
Molekule Group39 filings
Sk Americas, INC.37 filings
Motorola Solutions, INC.36 filings
Uranium Producers of America30 filings
Hudson Technologies29 filings
SAP National Security Services, INC.28 filings
Aramark Services, INC.27 filings
RTX Corporation25 filings
Niantic, INC.24 filings
Cook Inlet Region Incorporated (Ciri)24 filings
Bayotech22 filings

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Data Sources: Senate LDA Filings

Last updated: February 2026

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