We pitch sponsors for your newsletter. You close the deal.

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, no card, about a minute. Then $20 in free credits and 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
Automatic with Substack beehiiv Kit Ghost Buttondown Mailchimp and any newsletter with an RSS feed

Book a Sponsor by Sales.co. We've helped land sponsorships and run outbound for newsletter companies like

Alts.co Pray.com Ben's Bites Milk Road Kit
paste your newsletter→we find similar newsletters→we harvest their sponsors→we send them cold emails→we connect you when they respond

Live from our sending, updated hourly

25,108pitches sent to brands in the last 30 days
87brands said yes in the last 30 days
3.5brands said yes per 1,000 pitches
2.4 hmedian time from a pitch to a brand's yes
47newsletters we pitched for in the last 3 days

Every pitch we sent for Book a Sponsor clients in the last 30 days, counted by the brand's first answer. Updated 10:53 AM ET.

The three things everyone asks first

Who does the pitches?

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.

What's the price and what do I get?

$20 in free credits, then 10¢ per email sent (initial emails and follow-ups). 200 email sends free. No commission, no rev-share. 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 (87 brands said yes to 25,108 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

What's success?

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.

How it works

1

We scrape our database for similar newsletters

2

We grab the sponsors and their contact details

3

We cold email new leads daily from our own sending infrastructure

4

You monitor your inbox for the introductions we make

Pay per email sent. Nothing per deal.

$20 in free credits, then 10¢ per email sent.

Initial emails and follow-ups both count. 200 email sends free, and 3,000 total email sends cost $300. No commission, no rev-share.

  • 50 pitches every day by default, 25 to 100 on your dash slider, to brands already buying in your niche, sent from our own sending infrastructure and domains
  • Positive replies get introduced to you, or sent to your booking page if you have one
  • New sponsors added weekly as brands buy in your niche. Cancel anytime
  • First sponsor reply inside 30 days or the month is refunded

the run is free · no card until you set up outreach · invoiced weekly after a few daily charges, capped at $50

Common questions

Do the emails come from me?

No. We do the pitching. 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.

What do you take?

$20 in free credits, then 10¢ per email sent (initial emails and follow-ups), invoiced daily for your first few days and weekly after that, never more than $50 at a time. 200 email sends free. No commission, no revenue share, no per-deal fee. Some marketplaces take a cut of every deal they bring you: 15% at Passionfroot, 10% at MediaPact. We do not.

How many sponsors will you pitch?

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.

Where does the sponsor list come from?

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.

Who at the brand gets the pitch?

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.

Is this legal? What about CAN-SPAM and consent?

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.

Will the emails land in spam?

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.

What if nobody replies?

If you do not get a single sponsor reply inside 30 days, the month is refunded. Cancel anytime from your dash. Nothing is charged until your $20 in free credits (200 email sends) is used up.