Stephen Williamson

Individual

Also gave $9K to joint fundraising committees. That isn't in the totals here, because those committees pass the money on to others.

Grouped by the exact name reported to the FEC, which has no ID for individual donors. Other people with this name may be included.

Total Contributed

$166K

Contributions

1,131

Recipients

117

Active Period

1999–2026

Donor Profile

Party Lean

D $52KR $21K

Top States

MA$65K

DC$18K

AL$8K

CA$8K

MO$8K

Giving Trend

↓ 59%

2025–2026 vs 2023–2024

Employer

THERMO FISHER SCIENTIFIC

Summary

WILLIAMSON, STEPHEN is an individual political donor based in CA. They have contributed $166K across 1,131 contributions to 117 recipients. Their average contribution is $147.09. Top recipients include THERMO FISHER SCIENTIFIC INC. PAC, DNC SERVICES CORP / DEMOCRATIC NATIONAL COMMITTEE, AUSTAL USA LLC FEDERAL POLITICAL ACTION COMMITTIEE. Their political giving spans from the 2000 to the 2026 election cycle, with peak giving of $36K in 2020.

Giving Pattern by Cycle

Contribution amounts per election cycle, colored by recipient party

All Recipients

Committees and candidates receiving contributions, all cycles

#	Name	Party	State	Total	Contributions
1	THERMO FISHER SCIENTIFIC INC. PAC	—	MA	$65,329	238
2	DNC SERVICES CORP / DEMOCRATIC NATIONAL COMMITTEE	Democratic	DC	$8,525	66
3	AUSTAL USA LLC FEDERAL POLITICAL ACTION COMMITTIEE	—	AL	$8,430	47
4	HARRIS FOR PRESIDENT	Democratic	PA	$6,619	23
5	CORY BOOKER FOR SENATE	Democratic	NJ	$5,000	1
6	GIFFORDS PAC	—	DC	$4,300	16
7	NEED TO IMPEACH	—	CA	$2,850	27
8	CLEAVER FOR CONGRESS	Democratic	MO	$2,779	41
9	BOLLIER FOR KANSAS	Democratic	KS	$2,725	8
10	JOSH HARDER FOR CONGRESS	Democratic	CA	$2,700	1
11	HILLARY FOR AMERICA	Democratic	NY	$2,650	9
12	NRCC	Republican	DC	$2,238	42
13	TOM STEYER 2020	Democratic	CA	$2,100	16
14	TRUDY BUSCH VALENTINE FOR SENATE	Democratic	MO	$2,100	5
15	OBAMA FOR AMERICA	Democratic	IL	$2,062	5
16	MAGGIE FOR NH	Democratic	NH	$2,050	3
17	THIEN HO FOR CONGRESS	—	—	$2,000	2
18	TRUMP NATIONAL COMMITTEE JFC, INC.	—	VA	$1,724	23
19	AMERICAN AMBULANCE ASSOCIATION FEDERAL PAC (AKA AMBU-PAC)	—	DC	$1,500	2
20	SCHUPP FOR CONGRESS	Democratic	MO	$1,360	6
21	HEARTLAND PATRIOTS	Democratic	MO	$1,350	14
22	SHARICE FOR CONGRESS	Democratic	KS	$1,150	10
23	SMP	—	DC	$1,150	6
24	HILLER2020	Democratic	NY	$1,000	1
25	TIM RYAN FOR CONGRESS	Democratic	OH	$1,000	1

1–25 of 117

1 / 5

Source: FEC bulk data

Stephen Williamson — Individual Donor Profile | Poliscope