Explained for owners
An AI operating system is your company's know-how, written down where the AI can use it, plus the jobs the AI does with it. For example, the AI drafts a quote from an email in the inbox with your prices and rules, and a person approves it before it goes out. Hundredfold is a two-person advisory firm: we write it down with you and build it for companies of 20 to 200 people, starting with the job that takes the most hours. You own everything we build. The first step is an audit: 14 days at most, $2,500–$5,000.
The example is a distribution company of 45 people, an example firm built from firms like yours, for demonstration only. It is not a client.
The first call is free. You sign nothing to have it.
By Arun Agrahri and Cédric Giorgi, Managing Partners. Published 16 October 2026.
Three things you can open and check.
Your rules, written down.
Prices, discounts, exceptions and who signs off on what, in documents your team can read and correct. They are yours to keep and change.
One job, running.
The first job the audit picked, built into the tools your team already opens. The AI drafts and a person approves, until it has been right for two weeks straight.
A weekly check.
Each week someone checks that the results are still right and fixes what drifted. Your team can do it, or we do it for you.
A second brain for the company. McKinsey says it puts a company's "decades of proprietary data, operating experience, and domain expertise" to work. Each person sees what matters to their job and decides faster.
The article is written for the chief executive of a large company. Its examples are a global insurer, a retailer with more than 7,000 stores and manufacturers with about 100 data sources. Its advice still holds at your size once it is said in plain words. We run our own company on the same idea, with two people and no layers at all.
Source: McKinsey, The AI operating system: A new way for CEOs to run the enterprise, 13 October 2026. Hundredfold has no link to McKinsey.
Six ideas carry the article, and each one has a plain version at your size.
Three things, and all three work in your favour.
There are fewer layers to cross.
McKinsey asks large companies to connect the chief executive directly to the front line. In a company of 80 people, the owner already knows the front line. The AI gives that owner the numbers without waiting for a report.
Your information is already close at hand.
McKinsey's advice is to leave the data where it is and build on top of it. At your size, that means the inbox, the spreadsheets and the trade system you run today. No data project comes first.
You start with one job, not five areas.
McKinsey tells a large company to choose three to five business areas. A company of 20 to 200 people starts with one job, proves it, then adds the next.
You do. After implementation, the system, its documentation and the written-down know-how behind it are yours.
If you want, we keep it running. We change it as your business changes: a new product line, a new price list, a new person in charge. If you would rather run it yourself, you keep everything.
With an audit. In 14 days at most, we find the one job worth building first, and we write down what it costs and what it returns. The audit costs $2,500–$5,000. If we find nothing to improve, you pay nothing.
Your company's know-how, written down where the AI can use it, plus the jobs the AI runs with it. The AI drafts the routine part, and a person approves the result.
Not as one product. You rent the tools underneath. The part that makes it yours is how your company decides, written down from inside the company, and the jobs built on it. The tools can change while that part stays.
No. Start from the inbox, the spreadsheets and the trade system you already run. Information that sits on paper goes on screen first.
The audit takes 14 days at most. In our 5 worked examples, the first job then takes 7 to 11 weeks to build. The audit sets the real length for your company.
The audit costs $2,500–$5,000. We price the next step from what the audit finds, and you see that price in the written plan before you commit.
No. We have no link to McKinsey. We cite their article because it describes, for large companies, the work we do for companies of 20 to 200 people.
From $2.5K, fixed scope, half of it off the build if you go ahead within 30 days, and the first call is free. You'll know what to build, in what order, and what it gives back, before you commit to building it.
Tell us the one process that costs you most. One of us reads every application and answers it with a name.
We invoice in US dollars from Sena Technologies, Inc.; the French page shows the same amounts in euros.
We reply within two business days, always with a name. No sequence, no chasing.