Book a Sponsor by Sales.co. We've helped land sponsorships and run outbound for newsletter companies like
Kit
Paste your newsletter URL. We'll show you exactly who is sponsoring in your space. Then, we cold email them every day. Positive responses get connected to you. No setup on your end.
Free run, about a minute. Then $1 card check gets 200 emails, with a money-back guarantee.
FromRyan · Partnerships, Business Brainstorms
ToGeorge B. · Marketing Director · Notiong•••@mail.notion.com✓
SubjectGeorge, Business Brainstorms sponsorship
Hi George,
I saw Notion sponsored the newsletter Investing Nuggets.
Reaching out about Business Brainstorms, a newsletter with a similar audience of 15,000 business builders and aspiring entrepreneurs.
Can I send you their media kit?
Ryan
Partnerships, Business Brainstorms
Book a Sponsor by Sales.co. We've helped land sponsorships and run outbound for newsletter companies like
Kit
Every pitch we sent for Book a Sponsor clients in the last 30 days, counted by the brand's first answer. Updated 12:22 PM ET.
We do. We have our own sending infrastructure and domains. We are not sending in your name, just contacting known sponsors about your specifics and introducing them when things look good.
$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. Or 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. At 100 a day that is about 3,000 pitches a month, which has meant roughly 10 to 19 positive sponsor replies a month. One end is Book a Sponsor's last 30 days (120 brands said yes to 37,249 pitches), the other is our Sales.co newsletter sponsorship campaigns (815 positive replies from 128,693 sends, May 2025 to Aug 2026). Your niche and list size move it.
Source: Book a Sponsor sends, last 30 days, updated hourly · Sales.co client data, newsletter sponsorship campaign, May 2025 to Aug 2026
A sponsor contact wants to sponsor you after seeing our outreach. If you already have a page where they can buy a slot, link it and we send them there. Otherwise we introduce them and you work the lead.
$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. A plan's first month starts when the 200 emails are sent. No commission, no rev-share, nothing per deal.
10¢ per email sent
After the first 200 emails, which are free. First pitches and follow-ups both count.
$49 a month
Up to 500 emails a month across 2 newsletters, after your 200 free emails.
$99 a month
Up to 1,500 emails a month across 5 newsletters, after your 200 free emails.
First sponsor reply inside 30 days or your money back. Compare plans
the run is free · $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
50 per day by default, weekends included, about 1,500 a month. You set the number on your dash, 25 to 100 a day, and pay 10¢ per email sent (initial emails and follow-ups). A niche has 300 to 1,500 brands buying newsletter ads, so a high number burns through it faster.
We read the issues of newsletters in your niche and record every "brought to you by" and "sponsored by" block, with the issue URL and date. Your list shows which newsletters each brand sponsored and when.
The person who signs off on sponsorship spend: founder or CEO first, then head of growth, marketing, or partnerships. Each address is verified before it goes on your list. You see the masked address and the verification date.
Every pitch is a business-to-business email to a brand that already buys newsletter ads. Each one carries our postal address and a working unsubscribe, and brands that opt out go on a global do-not-contact list across every client. You confirm at checkout that we may email brands on behalf of your newsletter.
They go from warmed mailboxes on domains we already run outreach from, at 50 a day per client by default. Bounced or invalid addresses are dropped before sending. If a brand replies "not interested", nobody else on the platform pitches them for 21 days.
If you do not get a single sponsor reply inside 30 days, you get your money back. Cancel anytime from your dash. Your card is charged $1 today as a card check, and nothing more until your 200 emails are sent.