Radar Lab by Partnership Intel Get Radar Lab

Newsletter ad networks, compared.

The 5 main places brands buy newsletter ads in 2026, how each works and what it costs. Plus the one step all of them leave to you: deciding which newsletters are worth it.

Facts checked on each company's own website, November 4, 2026.

Where brands buy newsletter ads.

Networks, marketplaces and managed services, side by side. Open any one for the full comparison with Radar Lab.

Marketplace

SponsorSheep

How you buy
Book listed slots at the listed rate
Price
Free to browse; commission on bookings
Newsletters
Listed newsletters, plus the Bellwether sponsor database
Best for
Booking listed slots with rates up front
SponsorSheep vs Radar Lab
Creator platform

Passionfroot

How you buy
Book a creator's storefront
Price
Creator's price + 5% fee
Newsletters
Creators across newsletters, YouTube, LinkedIn and more
Best for
Booking and paying creators across channels
Passionfroot vs Radar Lab
Marketplace + ad network

Paved

How you buy
Book listings, or pay per click
Price
No brand fee; ad network from $50 a day
Newsletters
3,000+ listed newsletters
Best for
Booking listed slots fast, or pay-per-click ads
Paved vs Radar Lab
Managed ad network

beehiiv Ad Network

How you buy
A specialist and algorithm place your ads
Price
Per open or click; from $15k
Newsletters
Newsletters hosted on beehiiv (100M+ readers, says beehiiv)
Best for
Large managed campaigns with one buy
beehiiv Ad Network vs Radar Lab
Managed pay-per-click

Wellput

How you buy
Wellput proposes and runs the campaign
Price
Per click; from $5k
Newsletters
1,000+ newsletters
Best for
Hands-off campaigns paid per click
Wellput vs Radar Lab
The step before booking

Radar Lab

What it does
Ranks newsletters by fit for your buyers
Price
$49 a month, or $29 for 5 days
Newsletters
4,700+, on any platform
Best for
Knowing which newsletters work before you pay
Try it free for 5 days

Prices and figures are each company's own, from their websites on November 4, 2026. If something is out of date, tell us at hello@partnershipintel.com.

Network, marketplace, or neither?

It comes down to how much you want to choose yourself.

If you want it done for you

An ad network or managed service

Set a budget and a goal; they pick the newsletters and run the ads.

If you want to pick each slot

A marketplace

Browse listed newsletters and book the slots you want, at a listed price.

If you want to know which ones work

Start with Radar Lab

See who sponsored each newsletter, with the real ad, then book anywhere, including directly.

The step every network leaves to you.

Each one is good at selling you a slot. None of them, on their public pages, answers whether that slot works for brands like yours.

Past sponsorsNone of them shows which brands sponsored a newsletter before, with the real ad.
Your competitorsNone shows where your competitors sponsor outside its own network.
The whole marketEach covers only its own newsletters or creators.
  1. In Radar Lab Add your website Radar Lab ranks newsletters by fit for your buyers, on any platform.
  2. In Radar Lab Check the proof Every past sponsor, the real ad, the date, and who came back.
  3. In Radar Lab Make your shortlist Including good fits no competitor has sponsored yet.
  4. Anywhere Book anywhere On a network or marketplace, or directly with the newsletter.

In Radar Lab's data, 46% of brand and newsletter pairings ran more than once. Those comebacks are the proof to check before you book. Radar Lab data, November 2, 2026.

Questions about newsletter ad networks

Something else? Email hello@partnershipintel.com, or read what newsletter ads cost.

A newsletter ad network sells ad space across many newsletters at once. You set a budget and a goal, and the network places your ads, usually paid per open or per click. The beehiiv Ad Network and Paved's Ad Network work this way. Managed services like Wellput run the campaign for you.

On an ad network, the network chooses where your ads run. On a marketplace, like Paved's Marketplace, SponsorSheep or Passionfroot storefronts, you pick each newsletter and book its slot at a listed price. Marketplaces give you more control; networks take less of your time.

Paved has no minimum monthly spend, and its Ad Network starts at $50 a day. SponsorSheep and Passionfroot let you book a single slot at the newsletter's price (Passionfroot adds a 5% fee for brands). Wellput campaigns start at $5k, and the beehiiv Ad Network at $15k.

No. Radar Lab doesn't sell ad space or take a cut of bookings. It's the research step before you buy: it ranks newsletters by fit for your buyers, shows who sponsored each one with the real ad and date, and flags good fits no competitor has used yet. Then you book directly or on any network.

Look for proof that brands like yours came back. In Radar Lab's data, 46% of brand and newsletter pairings ran more than once, and those repeat sponsors are the strongest sign a newsletter works. Check fit for your buyers, where competitors already sponsor, and the real ads they ran.

Find the newsletters that reach your buyers, before your competitors do.

Add your website. Radar Lab ranks newsletters by fit, flags the ones no competitor has sponsored yet, and shows the real ads others ran there.

Try Radar Lab free for 5 days No card needed. Then $49 a month, or $299 a year at the founding price.