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The Company Brain Series

How to Build a Company Brain

A company brain is one shared AI brain your team and your AI agents work from. Five parts, in order: why your business needs one, how it gets you leads from ChatGPT, every job one can take off your desk, what one is made of, and how to build it in two weeks with nine prompts. Every part is free, and each one assumes the one before it, so start at part one.

  1. Title card for the guide "Why Your Business Needs a Company Brain" on brian-macdonald.com

    Part 1: Why it exists

    Why Your Business Needs a Company Brain

    Every system in a business was built for a department. None of them was built for the person doing the work. That is the gap a company brain fills.

    Read part 1 →
  2. Part 2: How it gets you leads

    How a Company Brain Gets You Leads from ChatGPT

    People ask ChatGPT who to hire. How a company brain puts your business in that answer, what I measured on my own site, and what nobody can promise you.

    Read part 2 →
  3. Title card for the guide "48 Jobs You Can Hand to a Company Brain" on brian-macdonald.com

    Part 3: What it can do for you

    48 Jobs You Can Hand to a Company Brain

    Forty-eight jobs a company brain can take off your desk, grouped by what they cost you, and the rule that decides which ones run without you.

    Read part 3 →
  4. Guide title card reading "Build your own AIOS" over a glowing open doorway standing in sunlit storm clouds

    Part 4: What it is made of

    What a Company Brain Is Made Of: The Three Parts

    The machine that does the work, the workshop where you change it, and the leash that lets you walk away from it.

    Read part 4 →
  5. Title card for the guide "How to Build a Company Brain: Nine Prompts and a Two-Week Order" on brian-macdonald.com

    Part 5: How to build it

    How to Build a Company Brain: Nine Prompts and a Two-Week Order

    Eight pieces, nine paste-ready prompts, where to run them, and the two-week order to build them in.

    Read part 5 →

Built it? The advanced series on running it without being there is Claude Code From Your Beach Chair →

Every free guide →

Want an AI Brain built for your business?

Book a 20-minute call and tell me the job you want off your plate.