Thornwell

Human services
Clinton, South Carolina
EIN 57-0314418
Tax-exempt since 1984

Firms paid: 1
Fees reported, —: —
Fees reported in —: —
Most Recent Reported Revenue: $13.8M

Listed as a client by:

Per firm websites

FLYWHEEL ADVANCEMENT LLCFull-service fundraising

Form 990 Snapshot

Thornwell's Form 990 figures by year
Tax year	Revenue	Contributions	Fundraising expenses	Professional fundraising fees
2024	$13.8M	$7.2M	$1.5M	—
2023	$14.1M	$6.3M	$1.7M	—
2022	$9.4M	$6.7M	$1.6M	—
2020	$9.9M	$6.0M	$1.1M	—
2019	$11.3M	$7.4M	$868K	—
2018	$10.9M	$7.4M	$902K	—

Fees are what Thornwell reported on IRS Form 990. Nonprofits list only fundraisers paid $5,000 or more, and many book consultants under other expenses, so a nonprofit can have worked with firms that don't appear here. Last checked 2026-11-14.