The sponsor operations layer, end-to-end.
Eight features. One coherent system. Every feature ladders up to either keeping sponsors longer or replacing a manual workflow you already hate.
What does KeelStack do?
KeelStack is a sponsor CRM for solo newsletter and podcast creators. It tracks sponsorship deals in a five-stage pipeline, gives each sponsor a magic-link portal to upload their own assets without creating an account, sends the creator renewal reminders at 30, 14, and 7 days before a contract ends, tracks invoices, and produces one-page branded performance reports — for a flat $39–$99 per month with no percentage of sponsorship revenue.
- Pipeline: Pitched → Confirmed → Active → Renewed → Churned
- Sponsor portal: no account, single-use link, 24-hour expiry
- Renewals: automatic 30/14/7-day reminders to the creator
- Reports: one-page, branded, print-ready per campaign
Last updated
Drag-and-drop Kanban across Pitched, Confirmed, Active, Renewed, and Churned. Every sponsor card shows deal value, contract dates, and portal status. The pipeline updates in real-time when sponsors upload assets — no refresh required.
Use cases
- See every deal at a glance
- Spot stalled sponsors in seconds
- Track quarterly revenue
Generate a secure 24-hour magic link with one click. Your sponsor opens it in their inbox — no account, no password, no friction. Issuing a new link invalidates the old one, and only one active link exists per sponsor at a time.
Use cases
- Onboard new sponsors in 30 seconds
- Cut sponsor email threads to zero
- Look professional without an agency
Sponsors drop their logo, banner, ad copy, and tracking link directly into the portal. KeelStack files them under the sponsor's asset library and tags them by type. Your dashboard updates live — no chasing files over email.
Use cases
- Stop digging through inbox threads
- Always have the right logo on hand
- Forward ready-to-use assets to your team
When the contract end date approaches, KeelStack emails you (not your sponsor) at T-30, T-14, and T-7 days. Reminders are sent from your branded domain so they always reach your inbox — never spam. Reply to any reminder and it goes straight to our team.
Use cases
- Never miss a renewal window
- Start renewal conversations on time
- Keep every sponsor's history in one place
Track invoices with auto-numbered IDs (KS-2026-0007) from draft to sent to paid. Set due dates and payment notes, and mark them paid the moment the money lands. The invoice log lives next to the sponsor — never in a separate Notion page.
Use cases
- See who owes what across all sponsors
- Stop chasing paid invoices through DMs
- Audit-ready at year end
After the campaign goes out, capture opens, clicks, conversions, and subscribers. KeelStack renders a branded, print-ready one-page report. Forward it to the sponsor — the artifact that closes the renewal conversation.
Use cases
- Close renewals with proof, not promises
- Send sponsors something they forward to their boss
- No designer required
Quarter-over-quarter revenue, paid invoice totals, active sponsor count, and upcoming renewals — all on one screen. The dashboard is the first thing you see when you sign in, and it updates live as sponsors move through the pipeline.
Use cases
- Know your quarterly revenue without a spreadsheet
- Spot which sponsors are about to renew
- Track growth at a glance
Your data is isolated, encrypted, and exportable anytime. Every action is logged in an audit trail you can export. One click exports your full data — sponsors, invoices, reports — as JSON or CSV. One click deletes everything. GDPR-ready from day one.
Use cases
- Prove to sponsors their data is safe
- Export everything before a migration
- Delete on request without a developer
The stuff other tools ship that we don't.
We are not trying to be everything. We are trying to be the right thing for one person running 3–15 direct deals.
A sponsor marketplace
You sell your own sponsors. We don't skim off your deals.
Per-seat pricing
You're one person. $39/mo flat — not $79 × 15 seats.
A "team collaboration" layer
You don't need @mentions on sponsor cards. You need the renewal to fire on time.
A percentage of your revenue
The better you do, the more they take. We never will.
< 10 min
Total time to onboard a sponsor end-to-end — add to pipeline, generate portal link, forward to sponsor.
3–15
Direct sponsor deals KeelStack is built for. More than 15? Talk to us — we have a Pro tier for that.
0%
Of your revenue, ever. Flat $39 or $59 a month. Cancel anytime.
Try the parts you can use today — free.
The features above are paid, but the rate-card generator and the comparison are free with no account. See if the fit is right before you sign up.
The features are the product. Try them.
14-day free trial. No credit card. Move one sponsor through the full workflow — pipeline, portal, reminder, report — and see if it clicks.
Guides that go with this page
- Newsletter sponsorship report template: what to includeA one-page post-campaign report template for newsletter and podcast sponsors: the metrics to include, how to frame them, and what to leave out.Read the guide
- Sponsor asset checklist for newsletters and podcastsExactly what to collect from a sponsor before a placement runs: ad copy, logos, links, specs and deadlines, with a copy-ready checklist for both formats.Read the guide
- Sponsorship renewal email templates for newsletter creatorsCopy-paste renewal emails for the 30-, 14- and 7-day windows, plus what to attach, when to send, and how to handle a 'we'll think about it' reply.Read the guide