Manage sponsorships without the chaos

KeelStack is a sponsorship management platform for independent newsletter creators and podcasters who handle their own sponsorship deals.

As your sponsorship business grows, managing everything through spreadsheets, email threads, and scattered documents becomes increasingly difficult. KeelStack brings your sponsorship operations together in one organized workspace.

What you can do with KeelStack

• Sponsor Pipeline: Track deals from Pitched and Confirmed to Active, Renewed, or Churned.

• Sponsor Portal: Share secure magic links so sponsors can submit campaign materials without creating an account.

• Asset Collection: Organize sponsor logos, banners, ad copy, and tracking links.

• Automated Reminders: Get notified 30, 14, and 7 days before sponsorship renewals.

• Invoice Management: Keep track of invoices and payment statuses.

• Performance Reports: Create branded, shareable reports to communicate campaign results.

• Revenue Overview: Monitor sponsorship revenue and deal activity.

Built for independent creators

Whether you publish on Substack, Beehiiv, Ghost, or Kit, or run an independent podcast, KeelStack helps you manage direct sponsorship relationships without needing a dedicated operations team.

KeelStack isn't a sponsorship marketplace. You find your own sponsors, maintain your relationships, and keep 100% of your sponsorship revenue. KeelStack simply helps you manage the business behind it.

Start managing sponsorships better

Spend less time chasing emails, organizing assets, and remembering renewal dates. Spend more time creating and growing your audience.

Try KeelStack free for 14 days.