B2B SaaS newsletters

NewsletterFIT tracks 36 newsletters that cover B2B SaaS as a primary topic, 27 of them with posts in the last 90 days. By publicly shown subscriber count, the largest are The Gildre Founder Newsletter (900K), Business Analytics Review (734K) and bayareatimes.com (250K). Brands detected sponsoring these newsletters recently include Town, Span and Lovable.

Updated Oct 31, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    The Gildre Founder Newsletter900K subscribers

    beehiivMonthly or less · last post 25 days ago

    Likely audience: Entrepreneurs and Founders

  2. 2
    Business Analytics Review734K subscribers

    SubstackDaily · last post 16 days ago

    Likely audience: ML engineers

  3. 3
    bayareatimes.com250K subscribers

    beehiivWeekly · last post 19 days ago

    Likely audience: AI researchers and engineers

  4. 4
    RevTech Insider111K subscribers

    SubstackMonthly or less · last post 22 days ago

    Likely audience: Revenue Operations Leaders

  5. 5
    LA FRAISE ™65K subscribers

    SubstackWeekly · last post 19 days ago

    Likely audience: Marketing professionals in France

  6. 6
    FREEZBEE46K subscribers

    SubstackEvery two weeks · last post 20 days ago

    Likely audience: Freelancers

  7. 7
    The Leverage35K subscribers

    SubstackWeekly · last post 20 days ago

    Likely audience: Founders

    Sponsors detected: Span, Town, Lovable

  8. 8
    SumoGrowth AI Insights32K subscribers

    SubstackSeveral times a week · last post 19 days ago

    Likely audience: AI agency owners

    Sponsors detected: SumoLevel

  9. 9
    Next Capital20K subscribers

    SubstackEvery two weeks · last post 29 days ago

    Likely audience: Fintech investors

  10. 10
    PSFK Weekly powered by Fodda18K subscribers

    SubstackWeekly · last post 17 days ago

    Likely audience: Retail executives

  11. 11
    AI For Entrepreneurs8K subscribers

    SubstackEvery two weeks · last post 21 days ago

    Likely audience: Entrepreneurs

  12. 12
    TickerTrends Research3K subscribers

    SubstackEvery two weeks · last post 16 days ago

    Likely audience: Financial analysts

  13. 13
    Intelligent Founder3K subscribers

    SubstackEvery two weeks · last post 15 days ago

    Likely audience: AI product managers

  14. 14
    The Startup to Follow Newsletter2K subscribers

    SubstackMonthly or less · last post 18 days ago

    Likely audience: Startup founders

  15. 15
    Ag Uncensored2K subscribers

    Substacklast post Jul 20, 2026

    Likely audience: AgTech investors

  16. 16
    PMF /evals 1K subscribers

    SubstackMonthly or less · last post Sep 1, 2026

    Likely audience: Venture capitalists

    Sponsors detected: Chargebee

  17. 17
    The Playbook—

    SubstackSeveral times a week · last post 21 days ago

    Likely audience: Growth marketers

  18. 18
    educationintel.com—

    beehiivSeveral times a week · last post 19 days ago

    Likely audience: School board members

  19. 19
    Upstarts Media—

    SubstackWeekly · last post 18 days ago

    Likely audience: Product managers

  20. 20
    Open Source CEO by Bill Kerr—

    beehiivWeekly · last post 20 days ago

    Likely audience: AI product managers

  21. 21
    Product-Led Alliance | Product-Led Growth—

    GhostWeekly · last post 18 days ago

    Likely audience: Product leaders

  22. 22
    FounderTrace—

    beehiivWeekly · last post 19 days ago

    Likely audience: SaaS founders and entrepreneurs

  23. 23
    The Verticalist—

    SubstackEvery two weeks · last post 20 days ago

    Likely audience: Venture capitalists

  24. 24
    StartupSeed—

    beehiivEvery two weeks · last post 22 days ago

    Likely audience: Restaurant Owners

  25. 25
    Zoom Newsletter—

    LinkedInEvery two weeks · last post 23 days ago

    Likely audience: Sales leaders

  26. 26
    Strategic B2B Marketing—

    LinkedInEvery two weeks · last post 16 days ago

    Likely audience: Marketing Operations Leaders

  27. 27
    Sal life lessons—

    LinkedInEvery two weeks · last post 7 days ago

    Likely audience: AI startup founders

  28. 28
    Duffel Blog—

    GhostMonthly or less · last post 23 days ago

    Likely audience: Fintech executives

  29. 29
    The SaaS Playbook 91K subscribers

    Substacklast post Dec 2, 2022

    Likely audience: SaaS founders

  30. 30
    Product SideQuest by PM Diego10K subscribers

    Substacklast post Apr 28, 2026

    Likely audience: Product Managers

  31. 31
    RevOps Co-op7K subscribers

    Substacklast post Jan 11, 2023

    Likely audience: Revenue Operations professionals

  32. 32
    湾区日报 Blog4K subscribers

    Substacklast post Aug 9, 2021

    Likely audience: Startup founders

  33. 33
    The Zero to One2K subscribers

    Substacklast post May 6, 2025

    Likely audience: Startup founders

  34. 34
    The Product Hub Newsletter—

    Substacklast post Jul 2, 2021

    Likely audience: Product managers

  35. 35
    Marred By Dust—

    Substacklast post Apr 9, 2024

    Likely audience: Product Managers

  36. 36
    Legaltech Tapas—

    Substacklast post Sep 18, 2020

    Likely audience: Legal technology buyers

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