Duckbill newsletter sponsorships
NewsletterFIT detected Duckbill sponsoring 1 newsletter in 1 post over the last 12 months, first on Aug 6, 2026. Newsletters it has sponsored include Claude Marketers. The most recent placement was in Claude Marketers on Aug 6, 2026. Its placements cluster around AI agents, Marketing automation and advertising technology.
- Newsletters
- 1
- sponsored in the last 12 months
- Placements
- 1
- posts with a detected sponsorship
- First detected
- Aug 6, 2026
- in indexed posts
- Last seen
- Aug 6, 2026
- Claude Marketers
Placements per month
Newsletters Duckbill has sponsored
- Claude Marketers 16K subscribers
Substack Weekly · last post 20 days ago
Likely audience: Startup founders
1 placement · last Aug 6
Similar newsletters where Duckbill hasn't been detected
Active newsletters on the same topics that already carry sponsors. Useful for finding where a brand like this could go next, or where a competitor isn't yet.
- One more Thing in AI 900K subscribers
beehiiv Weekly · last post 18 days ago
Likely audience: AI developers
Sponsored by Date
- The Neuron 700K subscribers
beehiiv Several times a week · last post 17 days ago
Likely audience: Product managers
Sponsored by Front, Dell Technologies
- AI Blueprint 236K subscribers
Substack Weekly · last post 13 days ago
Likely audience: AI researchers
Sponsored by HubSpot
- Ben's Bites 172K subscribers
Substack Several times a week · last post 14 days ago
Likely audience: AI developers
Sponsored by Google, AWS, Adobe
- Rich on Tech 75K subscribers
Substack Several times a week · last post 15 days ago
Likely audience: Tech enthusiasts
Sponsored by Incogni, Surfshark
- FounderCoHo 67K subscribers
Substack Every two weeks · last post 22 days ago
Likely audience: AI researchers
Sponsored by DeepVista AI
- AI Agents Simplified 58K subscribers
Substack Weekly · last post 14 days ago
Likely audience: ML engineers
Sponsored by HubSpot, CircleCI, EZ Texting
- GTM Strategist 36K subscribers
Substack Weekly · last post 15 days ago
Likely audience: Growth marketers
Sponsored by Cello, Miro, Swan AI
Recent placements
- linkedin added… Claude Marketers
“winners from here are those that have been using ai to ideate and refine their human-written ideas. Claude Marketers is brought to you by Du”
Detected automatically from posts with explicit sponsorship markers ("sponsored by", "brought to you by" and similar). Detection can miss placements or misread them. Updated Oct 30, 2026 · methodology · all sponsors