Revenue optimization newsletters

NewsletterFIT tracks 4 newsletters that cover Revenue optimization as a primary topic, all with posts in the last 90 days. By publicly shown subscriber count, the largest are Girdley's Letter (250K), Wyatt Roderick - Personal Newsletter (29K) and Cashflow Diary Direct (17K).

Updated Nov 1, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    Girdley's Letter250K subscribers

    beehiivWeekly · last post 25 days ago

    Likely audience: Business owners

  2. 2
    Wyatt Roderick - Personal Newsletter29K subscribers

    SubstackMonthly or less · last post 48 days ago

    Likely audience: AI agency entrepreneurs

  3. 3
    Cashflow Diary Direct17K subscribers

    SubstackSeveral times a week · last post 23 days ago

    Likely audience: Property managers

  4. 4
    IRIS News & Updates—

    LinkedInEvery two weeks · last post 10 days ago

    Likely audience: hoteliers

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