Who We Serve · Nonprofits

Grow beyond your existing audience by replacing guesswork with proof.

Grow Progress helps nonprofits discover which messages inspire new donors, move skeptical audiences, and expand their base, with the same rigorous methodology used by leading organizations.

See Case Studies

The Challenge

Nonprofits invest millions in messages that have never been actually tested.

Built for believers

Acquisition messaging is built for existing supporters, not new audiences.

Assumed agreement

Program communications assume agreement rather than building it

Unknown reasons

You can see which appeal performed, not why, or who it would work on next.

The Grow Progress difference

Without Grow Progress

Instinct-driven · Results unknown

Write donor appeals based on what staff finds compelling
Assume mission-driven language motivates your full audience
Optimize communications around opens and clicks alone

With Grow Progress

RCT-powered · Results in 24 hours

Test your appeals on the audiences you can't reach any other way
See exactly who moved and why, not a black-box score you have to take on faith
Sharpen messages before they run on podcast, mail, or CTV, where you can't A/B test at all

Audience Targeting

Speak to new audiences
without losing the ones you have.

You already know what works with your current audience. Grow Progress helps you understand and inspire new audiences.

New donors

Identify the frame that inspires new audiences to give.

Younger audiences

Uncover which messages build trust and brand favorability with emerging audiences.

Charitable givers

Understand how your content moves people with a recent history of giving to other organizations.

Moveable middle

Identify which audiences are reachable and which messages are most effective at persuasion.

Campaign Timeline

From awareness to action ,
research at every stage.

The strongest nonprofits build a continuous feedback loop from mission framing through year-end giving.

Mission Framing

Test how to explain your mission to audiences who don't yet understand it

Before you invest in a brand campaign or major donor push, know which framing actually lands with people who have no prior connection to your work.

Donor Acquisition

Identify the message that converts new audiences into first-time donors

Know which frame drives genuine interest from people with no prior connection to your cause, before you build a campaign around the wrong one.

Program Advocacy

Test which program stories and impact frames move skeptical audiences

Find out which stories shift funders, policymakers, and community members who aren't already on your side, before you build a campaign around the wrong one.

Year-End & Renewal

Find the messages that maximize year-end giving and drive donor retention

Year-end is your highest-stakes communications moment. Test which frames drive renewed and upgraded gifts before the season starts, not after it ends.

The results are pretty stunning. Across all of the narratives we tested, it's the human, not the numbers, that moved people substantially. I've shared the results of our test with partners, including elected officials, who are hungry for help on how to effectively communicate about refugee issues in this moment of intense polarization.

Sarah Sheffer Vice President for Strategic Outreach

What You Can Test

What can nonprofits test
with Grow Progress?

If your organization uses it to move audiences or inspire action, you can test it.

Donor acquisition messaging

Mission framing for new audiences

Program advocacy appeals

Major donor cultivation

Year-end giving campaigns

Community engagement messages

Issue awareness campaigns

Volunteer recruitment

Lapsed donor reactivation