Adam Biddlecombe
Co-founder of Mindstream, an AI newsletter grown from zero to 110K+ subscribers and acquired by HubSpot. Differentiated in a category of 1,000+ AI-summary newsletters with a “written by humans” editorial tag, and grew through a disciplined LinkedIn engagement loop, paid-acquisition plays (Beehiiv Boost, ranked listicle placements), an equity-for-list merge, and aggressive list hygiene.
- Maxing Out the Beehiiv Boost Matching Grant — dumped the max into a one-time Boost matching grant to double paid-acquisition credits
- Written by Humans as the Editorial Tag — a human copywriter co-founder + editorial opinion as the wedge against 1,000+ AI-summary newsletters
- Cut Anyone Inactive for 50 Days — always-on automation removing 50-day inactives, trading topline count for deliverability
- The LinkedIn Lunch Break Engagement Loop — a daily four-touchpoint routine around the first-hour LinkedIn window
- The 30 Percent Equity List Acquisition — traded 30% equity to merge a ~200K list, importing only the active subscribers
- Pick the Brand Distribution Buyer Over the Bigger Check — chose HubSpot for 10-year compounding distribution over a bigger upfront check
- Undercut the CPM Lock the Long Term Deal — priced ads 10-15% below competitors to lock multi-month contracts at >50% retention
- Buying the Top of Google for Best AI Newsletter Listicles — paid placement in already-ranking “best AI newsletter” listicles
- Hire Juniors Abroad and Coach Them Daily — built a ~10-person team of coached juniors after the agency/freelancer stack failed