QUANTINUUM LLC

Registrant on federal lobbying filings · filed 2025 to 2026

$0 Income reported

1 Clients represented

6 Filings counted

0 Former members lobbying

Income is the fees this registrant reported being paid to lobby. It also reported $890,000 of in-house lobbying expenses, which is what a registrant files when it lobbies for itself. Everything on this page is grouped by the registrant's LDA id (401106920), not by name.

Clients 1

QUANTINUUM LLC $890,000 6 filings

Lobbyists named 1

GARTH SPENCER 3 filings · through 2026 Professional Staff Member, U.S. Senate Committee on Homeland Security and Governmental Affairs; Special Assistant, U.S. Department of Energy, ARPA-E; Projects …

A lobbyist who previously held a covered government position must disclose it. We flag the ones whose name resolves to a member of Congress and link the ones still in our roster. The revolving door collects them across every firm.

Reported by year 2 years

2026 $390,000 2 filings
2025 $500,000 4 filings

Issues lobbied 1

Trade (domestic/foreign) 6

The count is how many filings named that issue area. A filing reports one lump figure covering every issue on it, so the money above cannot be split between them.

Agencies and chambers lobbied 6

Commerce, Dept of (DOC) 6
HOUSE OF REPRESENTATIVES 6
SENATE 6
Treasury, Dept of 6
State, Dept of (DOS) 4
Energy, Dept of 3

Recent filings 6 total

Q2

QUANTINUUM LLC

2nd Quarter (Apr 1 - June 30) 2026 · House · Senate · $225,000 expenses · posted Jul 20, 2026

View → Q1

QUANTINUUM LLC

1st Quarter (Jan 1 - Mar 31) 2026 · House · Senate · $165,000 expenses · posted Apr 17, 2026

View → Q4

QUANTINUUM LLC

4th Quarter (Oct 1 - Dec 31) 2025 · House · Senate · $140,000 expenses · posted Jan 20, 2026

View → Q3

QUANTINUUM LLC

3rd Quarter (July 1 - Sep 30) 2025 · House · Senate · $120,000 expenses · posted Oct 8, 2025

View → Q2

QUANTINUUM LLC

2nd Quarter (Apr 1 - June 30) 2025 · House · Senate · $120,000 expenses · posted Jul 14, 2025

View → Q1

QUANTINUUM LLC

1st Quarter (Jan 1 - Mar 31) 2025 · House · Senate · $120,000 expenses · posted Apr 14, 2025

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Source: federal Lobbying Disclosure Act filings, synced daily. Money is self-reported by the filer and often rounded. Lobbying is legal, disclosed activity.