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GARTH SPENCER

QUANTINUUM LLC · Broomfield, CO
Registered · LDAActive

At a glance

Works on
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Background

Career
Broomfield, CO · current
Government experience
Professional Staff Member
U.S. Senate Committee on Homeland Security and Governmental Affairs; Special Assistant, U.S. Department of Energy, ARPA-E; Projects Director, Deputy Regional Director, Staff Assistant, Office of U.S. Senator Tom Carper
Covered official positions, as disclosed on federal filings

The past 12 months

Clients
1
past 12 months
Filings
1
past 12 months
Agencies contacted
Commerce, Dept of (DOC)Energy, Dept ofHOUSE OF REPRESENTATIVESSENATEState, Dept of (DOS)Treasury, Dept of

Specific issues

Export controls, domestic manufacturing, and promoting the US quantum ecosystem.
Trade (domestic/foreign) · 2026 Q1

Clients

2026 · 1 filing
$██,███ / qtrFree in beta

Sources

This profile is built from the public record: filings in the U.S. Senate Lobbying Disclosure Act system. lda.senate.gov ↗

Recent filings1
2026 Q1
QUANTINUUM LLC
Q1lda.gov →