Polk County nonprofits and upcoming local fundraisers, in one place.
A free directory of Polk County, Florida 501(c)(3) and 501(c)(4) organizations, built from public IRS filings, alongside upcoming local fundraising events. Built and maintained by Summit Labs as civic infrastructure. We never touch the money.
Nonprofit counts as of Oct 23, 2026. IRS confirmation means the organization’s EIN was found with an active status in the IRS Business Master File at the latest monthly check.
Get found by Polk County givers.
Claim your organization in two minutes. Post sponsorship events with cash and in-kind tiers. Receive interest by email. Free forever — no fees, no listing tiers.
Find causes that match.
Build a sponsor profile in minutes — businesses, foundations, individuals, donor-advised funds welcome. Browse opportunities by cause area, event type, or budget tier. Express interest non-bindingly.
Free for everyone, end to end.
Every nonprofit cross-checked against the IRS Business Master File for 501(c)(3) status, with public Form 990 data on each profile. State-level checks (FDACS, Sunbiz) are next on the roadmap. We never process payments. We never sell data. We never run ads.
Built on public records, with verification you can audit.
- IRS BMF · 501(c)(3) status cross-checked, refreshed monthly
- Form 990 · Public IRS filings surfaced on each profile
- FDACS & Sunbiz · Automated checks shipping next; manual review in the meantime
- Polk County only · Scoped to local nonprofits we can verify in person