Thomas O'Brien

Individual

Also gave $89K to joint fundraising committees. That isn't in the totals here, because those committees pass the money on to others.

This name appears on FEC filings from 28 states, so this page may combine different people who share it.

Total Contributed

$243K

Contributions

502

Recipients

161

Active Period

1999–2026

Donor Profile

Party Lean

D $136KR $49KIndependent $1K

Top States

DC$71K

MA$26K

NY$25K

TX$12K

NJ$5K

Giving Trend

↓ 26%

2025–2026 vs 2023–2024

Employer

THE HYM INVESTMENT GROUP

Summary

O'BRIEN, THOMAS is an individual political donor based in MA. They have contributed $243K across 502 contributions to 161 recipients. Their average contribution is $483.55. Top recipients include DNC SERVICES CORP / DEMOCRATIC NATIONAL COMMITTEE, MASSACHUSETTS DEMOCRATIC STATE COMMITTEE - FED FUND, CONSTELLATION BRANDS INC POLITICAL ACTION COMMITTEE. Their political giving spans from the 2000 to the 2026 election cycle, with peak giving of $40K in 2010.

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	DNC SERVICES CORP / DEMOCRATIC NATIONAL COMMITTEE	Democratic	DC	$42,355	47
2	MASSACHUSETTS DEMOCRATIC STATE COMMITTEE - FED FUND	Democratic	MA	$22,850	9
3	CONSTELLATION BRANDS INC POLITICAL ACTION COMMITTEE	—	NY	$11,000	6
4	NRSC	Republican	DC	$10,000	1
5	NEXSTAR MEDIA GROUP, INC. POLITICAL ACTION COMMITTEE (NEXSTAR PAC)	—	TX	$9,500	4
6	DCCC	Democratic	DC	$6,605	12
7	HILLARY FOR AMERICA	Democratic	NY	$5,050	8
8	JIMMY PANETTA FOR CONGRESS	Democratic	CA	$4,000	6
9	FEINSTEIN FOR SENATE	Democratic	DC	$3,900	3
10	DUFFY FOR WISCONSIN	Republican	WI	$3,600	2
11	RUTH FORTUNE FOR CONGRESS	—	—	$3,500	1
12	GILLIBRAND FOR SENATE	Democratic	NY	$3,500	2
13	REPUBLICAN FEDERAL COMMITTEE OF PENNSYLVANIA	Republican	PA	$3,000	2
14	FRIENDS OF PAT TOOMEY	Republican	VA	$3,000	3
15	FAIR SHOT PAC	—	DC	$3,000	2
16	INTERMAGNETICS GENERAL CORP. (INTERMAGNETICS FEDERAL PAC)	—	NY	$3,000	2
17	JPAC	—	SC	$3,000	3
18	TED CRUZ FOR SENATE	Republican	TX	$2,800	3
19	VDUSS PAC	Democratic	DC	$2,700	9
20	COMMITTEE TO ELECT DAN KOH	Democratic	MA	$2,700	1
21	DSCC	Democratic	DC	$2,500	2
22	ARMSTRONG FOR CONGRESS	—	ND	$2,500	1
23	HALLORAN 2012	Republican	NY	$2,500	1
24	ZIMMER 2000 INC	Republican	NJ	$2,500	3
25	JEBPAC-NEW JERSEY BANKERS ASSOCIATION FKA NEW JERSEY BANKERS ASSOC JERSEY BANKERS PAC	—	NJ	$2,400	1

1–25 of 161

1 / 7

Source: FEC bulk data

Thomas O'Brien — Individual Donor Profile | Poliscope