Capitol Clarity / Lobbyists / L / John Mason Long

John Mason Long: federal lobbyist

John Mason Long is named as a lobbyist on federal disclosure filings for 19 clients through Thornrose Ventures and 1 other registrant. The most recent filing naming them posted in September 2026. Issues reported include Health Issues, Pharmacy, Energy/Nuclear and Trade (domestic/foreign).

19Clients on filings
2Registrants
5Issue categories
1Years with reports

Former government positions listed

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

Clients and registrants

ClientRegistrantLatestIssues
MEDSIGN INTERNATIONAL CORPORATIONTHORNROSE VENTURESQ3 2026Aviation/Airlines/Airports, Budget/Appropriations, Health Issues
PATRIOT NICKEL CORPTHORNROSE VENTURESQ3 2026Trade (domestic/foreign), Natural Resources, Defense
WORLD FOOD BANK GROUPTHORNROSE VENTURESQ3 2026Trade (domestic/foreign), Trucking/Shipping, Agriculture
ACESO PLASMA, INCTHORNROSE VENTURESQ3 2026Medical/Disease Research/Clinical Labs, Small Business, Health Issues
PRESTIGE WOUND SOLUTIONS AND PRESTIGE FOOT AND ANKLE CENTERTHORNROSE VENTURESQ3 2026Medical/Disease Research/Clinical Labs, Medicare/Medicaid, Pharmacy
MINO, LLCTHORNROSE VENTURESQ3 2026Medical/Disease Research/Clinical Labs, Health Issues, Pharmacy
VALKOR LLCTHORNROSE VENTURESQ3 2026Trade (domestic/foreign), Budget/Appropriations, Natural Resources
MONTLARGO ENERGY INCTHORNROSE VENTURESQ3 2026Trade (domestic/foreign), Budget/Appropriations, Natural Resources
DNA HIVE LLCTHORNROSE VENTURESQ3 2026Science/Technology, Computer Industry, Health Issues
ENERGY EIGHT LLCTHORNROSE VENTURESQ3 2026Energy/Nuclear
LIBERTY PARTNERS GROUP (ON BEHALF OF ALLIANCE FOR AMERICA'S PROMISE)RUBIN, TURNBULL & ASSOCIATESQ2 2026Veterans, Health Issues
ARNALL GOLDEN GREGORY LLP (ON BEHALF OF HEALTH FUND SOLUTIONS, LLC)RUBIN, TURNBULL & ASSOCIATESQ2 2026Health Issues
LIBERTY PARTNERS GROUP (ON BEHALF OF ACCENTCARE)RUBIN, TURNBULL & ASSOCIATESQ2 2026Medicare/Medicaid, Health Issues
FRAGRANCE CREATORS ASSOCIATIONRUBIN, TURNBULL & ASSOCIATESQ2 2026Trade (domestic/foreign)
ENERGY EIGHT, LLCRUBIN, TURNBULL & ASSOCIATESQ2 2026Energy/Nuclear
GLYTEC, LLCRUBIN, TURNBULL & ASSOCIATESQ2 2026Health Issues
ASSOCIATION FOR ACCESSIBLE MEDICINESRUBIN, TURNBULL & ASSOCIATESQ2 2026Pharmacy, Health Issues
KLAL YISROEL INC.RUBIN, TURNBULL & ASSOCIATESQ2 2026Health Issues
ATLANTIC ENERGY INVESTMENT LLCRUBIN, TURNBULL & ASSOCIATESQ2 2026Trade (domestic/foreign), Energy/Nuclear

Activity by year

YearClientsRegistrants
202681

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 John Mason Long. See the Capitol Clarity rankings and method.