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About Radar Lab

What is Radar Lab?

Last updated: October 30, 2026

What Radar Lab does

Radar Lab by Partnership Intel helps B2B companies find newsletters worth sponsoring. It shows which newsletters your customers actually read, which competitors already sponsor them (with the real ads as proof), and which placements are most likely to pay off.

Most companies pick newsletters by subscriber count or by asking around, then hope the ad works. Radar Lab replaces that guesswork with evidence: what each newsletter's readers care about, who already pays to reach them, and whether those sponsors keep coming back.

Who Radar Lab is for

Radar Lab is for B2B SaaS and AI companies that want to win customers through newsletter sponsorships. That includes:

  • Founders testing their first sponsorship
  • Growth and marketing teams looking for a channel beyond Google, Meta and LinkedIn ads
  • Agencies and consultants who plan newsletter sponsorships for their clients

How Radar Lab works

  • Share your website. Radar Lab looks at your site to understand what you sell and who your customers are.
  • Add your competitors. Pick from suggestions or add your own, and Radar Lab checks where they have advertised before.
  • Get your shortlist. The newsletters your customers read, why each one is a good fit, and the real ads that prove it.

What you get

  • Hidden newsletters: smaller, focused newsletters your customers read that you may never have heard of.
  • Real ads as proof: the actual sponsor ads each newsletter has run, with dates.
  • Competitor activity: where competitors sponsor, and which newsletters they keep coming back to.
  • Who to contact: the right contact for each newsletter, plus an email that's ready to send.
  • Updates: a heads-up when a competitor tries a new newsletter, or one becomes a better fit for you.

How Radar Lab is different

Radar Lab is built for the company paying for the sponsorship, not for the newsletter selling it.

  • Paved and Passionfroot are marketplaces where you book placements with the newsletters listed there.
  • SponsorGap, Who Sponsors Stuff and similar tools are mainly built for newsletter creators looking for sponsors.
  • Radar Lab helps buyers decide where to spend across the whole market, using evidence of who already sponsors each newsletter and whether they come back.

Radar Lab in ChatGPT, Claude and Grok Bot

Radar Lab works inside ChatGPT, Claude and Grok Bot through MCP, the standard way AI assistants connect to tools. Connect it once, then ask questions like "Where do our competitors sponsor newsletters?" and get answers backed by Radar Lab's data. It's included with Radar Lab Pro and is read-only. See how to set it up.

Availability and pricing

Radar Lab is available now. You can try it free for 5 days, then upgrade to Radar Lab Pro for $49 a month, or $299 a year at the founding price (only 10 spots; the yearly price goes up after). See plans and limits.

Who makes Radar Lab

Radar Lab is made by Partnership Intel, founded by Tejas Rane. Tejas has built four online businesses and sold three since 2021, and writes the Radar Lab guides on finding, pricing and measuring newsletter sponsorships.

Contact: hello@partnershipintel.com

Frequently asked questions

What is Radar Lab?

Radar Lab by Partnership Intel is a newsletter sponsorship tool for B2B teams. It shows which newsletters your customers read, which competitors already sponsor them (with the real ads as proof), and which placements are most likely to pay off.

Who is Radar Lab for?

B2B SaaS and AI companies that want to win customers through newsletter sponsorships: founders, growth and marketing teams, and the agencies and consultants who plan sponsorships for them.

How is Radar Lab different from Paved, Passionfroot or SponsorGap?

Paved and Passionfroot are marketplaces where you book placements with the newsletters listed there. SponsorGap and similar tools are mainly built for newsletter creators looking for sponsors. Radar Lab is built for the buyer: it helps you decide where to spend, using evidence of which companies already sponsor each newsletter and whether they come back.

Is Radar Lab available now?

Yes. You can start a 5-day free trial at partnershipintel.com, no card needed, and upgrade to Pro when you are ready.

How much does Radar Lab cost?

There is a 5-day free trial. After that, Radar Lab Pro costs $49 a month, or $299 a year at the founding price, which is limited to the first 10 yearly customers. Each plan covers one business.

Does Radar Lab work with ChatGPT, Claude or Grok Bot?

Yes. Radar Lab Pro includes a connector for ChatGPT, Claude and Grok Bot, built on MCP, the standard way AI assistants connect to tools. Once connected, you can ask about newsletters, sponsors and competitors and get answers backed by Radar Lab's data.

Where does Radar Lab's data come from?

Radar Lab reads real newsletter issues and records the sponsor ads inside them, so every sponsor it shows comes with the actual ad and date as proof.

Who makes Radar Lab?

Radar Lab is made by Partnership Intel, founded by Tejas Rane. You can reach the team at hello@partnershipintel.com.

Is Radar Lab related to RAD Intel, Radar Labs or radarlab.us?

No. Radar Lab by Partnership Intel is a newsletter sponsorship tool at partnershipintel.com. It is not related to RAD Intel (RADAR), Radar Labs, radarlab.us or the Radar location platform, which are separate companies with similar names.