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Case Study: How a St. Louis Nonprofit Achieved 85% Donor Retention with a Custom Website

Forest ReLeaf of Missouri needed more than a pretty website — they needed a donor engagement engine. Sizzle built one that maintains an 85% donor retention rate.

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The Challenge: Turning Donors into Long-Term Partners

Forest ReLeaf of Missouri, a St. Louis-based nonprofit dedicated to planting and preserving trees, faced a challenge common to nonprofits everywhere: converting one-time donors into sustained supporters. Their existing website was informational but passive — it told visitors what they did, but it didn't actively engage donors or nurture relationships.

The organization needed a donor management system that tracked giving history and engagement, automated email campaigns that kept donors connected between asks, impact tracking and reporting that showed donors exactly what their contributions accomplished, a volunteer sign-up system that converted passive supporters into active participants, and newsletter integration that maintained year-round communication.

Forest ReLeaf came to Sizzle because they needed a partner who understood that a nonprofit website isn't about the technology — it's about the relationship between the organization and its supporters.

The Solution: A Donor Engagement Engine

Sizzle built Forest ReLeaf a website that functions as a complete donor engagement platform. The donor management system tracks every interaction — donations, event attendance, volunteer hours, email engagement — creating a complete picture of each supporter's relationship with the organization.

Automated email campaigns trigger based on donor behavior: thank-you sequences after donations, impact updates showing how funds were used, re-engagement campaigns for lapsed donors, and seasonal appeals tied to planting cycles. The impact tracking system generates visual reports that show donors the tangible results of their contributions — trees planted, acres restored, communities served.

The result: an 85% donor retention rate — dramatically above the nonprofit sector average of approximately 45%. For Forest ReLeaf, this retention improvement translates to hundreds of thousands of dollars in sustained funding that would otherwise require constant new donor acquisition.

Based in St. Louis, MO, Forest ReLeaf's success demonstrates what's possible when nonprofit web development goes beyond design to focus on donor engagement strategy. View the full project or start a conversation about your nonprofit's digital platform.

Key Takeaways

Every project in this case study started with the same question: what business outcome does this technology need to deliver? That strategy-first approach is what separates platforms that generate revenue from websites that just look good.

Whether you're a nonprofit seeking donor engagement, a professional services firm generating leads, or a growing business that needs to scale operations, the right technology partner builds solutions that compound in value over time.

Ready to see what Sizzle can build for your organization? Start a conversation about your project.

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