Capitol Clarity / Lobbyists / S / Garth Spencer

Garth Spencer: federal lobbyist

Garth Spencer is named as a lobbyist on federal disclosure filings for 3 clients through Synopsys, Inc. and 2 other registrants. The most recent filing naming them posted in October 2026. Issues reported include Trade (domestic/foreign), Defense, Science/Technology and Budget/Appropriations.

3Clients on filings

3Registrants

7Issue categories

2Years with reports

Former government positions listed

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

Professional Staff Member, U.S. Senate Committee on Homeland Security and Governmental Affairs Committee; Special Assistant (Schedule C), U.S. Department of Energy; Projects Director, Office of U.S. S
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

Clients and registrants

Client	Registrant	Latest	Issues
QUANTINUUM LLC	QUANTINUUM LLC	Q3 2026	Trade (domestic/foreign)
SYNOPSYS, INC.	SYNOPSYS, INC.	Q4 2025	Trade (domestic/foreign), Labor Issues/Antitrust/Workplace, Budget/Appropriations
ANSYS, INC.	ANSYS, INC.	Q3 2025	Science/Technology, Defense, Budget/Appropriations

Activity by year

Year	Clients	Registrants
2026	1	1
2025	3	3

Contributions reported on Form LD-203

Year	Items	Total
2025	1	$200

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 Garth Spencer. See the Capitol Clarity rankings and method.