The fundraising platform nonprofits use to get work done.
Harness was built for nonprofits that want to scale without adding staff or stitching together more tools. We unify data, marketing, and payments into one system designed to drive execution and outcomes, not just manage workflows.
Instead of managing a patchwork of tools and dashboards, over 2,700 nonprofits use Harness to run their entire fundraising operation from one place.
2016
Founded in Florida
2,700+
Nonprofit partners
$100M+
Donations processed
4.8/5
Nonprofit partners
The Problem We Exist to Solve
Most nonprofits don't struggle because they lack tools.They struggle because their tools are fragmented — and their teams don’t have the capacity to fully use them.
A fundraising platform should unify donor data so nothing gets lost.
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It should power campaigns, events, and recurring giving without manual work.
It should coordinate outreach across email, text, and social. It should show what’s working clearly, without spreadsheets.
And it should help teams execute consistently, even with limited capacity.
Harness was built to deliver all of this in a single platform.
How It Works
One platform. One system. No fragmentation.
Harness supports the full fundraising lifecycle through three connected stages:
Know your supporters
An AI-powered CRM that keeps every relationship organized, enriched, and prioritized automatically. Real-time dashboards deliver clarity to leadership without manual reporting.
Engage supporters consistently
Coordinate campaigns across email, SMS, and social, with built-in creative tools to drive consistent outreach without adding staff.
Grow sustainable funding
Optimized donation flows, flexible giving experiences, and integrated events and ticketing — all designed to reduce friction and convert engagement into revenue.
When these pieces work together, fundraising performance compounds. Every campaign strengthens data. Every interaction improves targeting. Every gift drives future growth.
Who We're Built For
Built for nonprofits that want clarity, consistency, and momentum.
Harness is a strong fit for small teams that need to scale output without adding staff, growing organizations that have outgrown basic tools, and established nonprofits tired of managing disconnected systems.
If your team knows what it should be doing but lacks the capacity to execute consistently — Harness helps close that gap.
Want to help nonprofits raise more?
We're a growing team building the platform nonprofits use to get work done. If that's the kind of work that drives you, we'd love to meet you.