Catherine Buttenwieser

Individual

Also gave $60K 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

$183K

Contributions

Recipients

Active Period

1999–2026

Donor Profile

Party Lean

D $91KIndependent $3K

Top States

DC$73K

PA$20K

MT$14K

GA$11K

AZ$9K

Giving Trend

↓ 59%

2025–2026 vs 2023–2024

Employer

HOSPICE WORKER

Summary

BUTTENWIESER, CATHERINE is an individual political donor based in MA. They have contributed $183K across 67 contributions to 42 recipients. Their average contribution is $3K. Top recipients include DEMOCRACY ENGINE, INC., PAC, KATHERINE CLARK VICTORY FUND, CASEY KEYSTONE VICTORY FUND. Their political giving spans from the 2000 to the 2026 election cycle, with peak giving of $68K in 2024.

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	DEMOCRACY ENGINE, INC., PAC	—	DC	$28,000	10
2	KATHERINE CLARK VICTORY FUND	—	DC	$25,000	1
3	CASEY KEYSTONE VICTORY FUND	—	PA	$13,300	2
4	WARNOCK FOR GEORGIA	Democratic	GA	$8,500	3
5	MONTANANS FOR TESTER	Democratic	MT	$6,600	2
6	ROSEN FOR NEVADA	Democratic	NV	$6,300	4
7	MARK KELLY FOR SENATE	Democratic	AZ	$5,700	2
8	TESTER VICTORY FUND	—	MT	$5,000	1
9	DEMOCRATIC PARTY OF WISCONSIN FEDERAL	Democratic	WI	$5,000	1
10	NEVADA SENATE VICTORY 2024	—	DC	$5,000	1
11	DEFEAT THE EXTREME FUND	—	FL	$3,408	2
12	SUSAN WILD FOR CONGRESS	Democratic	PA	$3,300	1
13	COLIN ALLRED FOR SENATE	Democratic	TX	$3,300	1
14	BACCAM FOR IOWA	Democratic	IA	$3,300	1
15	OSBORN FOR SENATE	Independent	NE	$3,300	1
16	BLUE STATES PAC	—	DC	$3,300	1
17	GALLEGO FOR ARIZONA	Democratic	AZ	$3,300	1
18	CHERI BEASLEY FOR NORTH CAROLINA	Democratic	DC	$2,900	1
19	CATHERINE CORTEZ MASTO FOR SENATE	Democratic	DC	$2,900	1
20	FETTERMAN FOR PA	Democratic	PA	$2,900	1
21	SARA GIDEON FOR MAINE	Democratic	DC	$2,800	1
22	CAL FOR NC	Democratic	DC	$2,800	1
23	JON OSSOFF FOR SENATE	Democratic	GA	$2,800	1
24	RIGHT SIDE OF HISTORY PAC	Democratic	VA	$2,800	1
25	BIG SKY VALUES	Democratic	MT	$2,800	1

1–25 of 42

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Source: FEC bulk data

Catherine Buttenwieser — Individual Donor Profile | Poliscope