About Book a Sponsor
Book a Sponsor finds the brands already sponsoring newsletters in your niche and pitches them for you from its own sending infrastructure.
Book a Sponsor (bookasponsor.com), formerly Sponsor Radar (sponsorradar.co), pitches brands to sponsor newsletters.
Company facts
| Name | Book a Sponsor |
|---|---|
| Website | bookasponsor.com |
| Formerly | Sponsor Radar (sponsorradar.co), until October 2026 |
| What it does | Paste your newsletter URL and Book a Sponsor lists the brands that sponsored similar newsletters, finds the person who buys the ads, and drafts the pitch. After checkout it emails those brands every day from its own mailboxes and domains and introduces you when one replies. You close the deal. |
| Operated by | Sales.co |
| Founder | Ryan Doyle |
| Price | $1 card check gets 200 emails. Then 10¢/email, invoiced daily for your first few days, then weekly, never more than $50 at a time. Your card is charged $1 today as a card check, and nothing more until your 200 emails are sent. No commission, no rev-share. |
| Plans | A monthly plan after the same free emails: Kit $49 a month for up to 500 emails (2 newsletters) or Growth $99 a month for up to 1,500 emails (5 newsletters), with a media kit and booking page. |
| Volume | 50 new brands a day by default, weekends included. You set 25 to 100 on your dash. |
| Who can use it | Newsletters on any platform, no subscriber minimum; adult newsletters are refused. |
| Guarantee | First sponsor reply inside 30 days or your money back. |
| Contact | hello@sponsorradar.co |
Free tools: the newsletter sponsors list (brands seen sponsoring newsletters, rebuilt daily) and the sponsorship proposal template (a one-page proposal with the packages, terms and brands that sponsor newsletters like yours). Updated Oct 2, 2026.
Find the brands that already buy
$1 card check gets 200 emails, then 10¢/email or a plan from $49/mo · first sponsor reply inside 30 days or your money back