> Index of every Falcon docs page, for assistants: https://falcon.com/docs/llms.txt

# Add a sub-company

A System admin adds a sub-company with Add company. The new company can use this company's model keys. Apps, accounts and channels stay separate, and a sub-company cannot add companies of its own.

The button is **Add company**. Falcon calls the new company a sub-company: it is linked to this one, and only one level is allowed.

## Who can add one

- Only a System admin of a company that is not itself a sub-company sees **Add company**. It is in the company switcher and on **All companies**.
- A person who is not a System admin has no **Add company** button. A sub-company has none either: a sub-company can't add companies of its own.
- A company can have at most 99 sub-companies.
- You add it while signed in at the parent company itself, not while you are only visiting through another company.

## Add company

- Choose **Add company** in the company switcher, or open **All companies** and choose **Add company**. The switcher opens **All companies** with the same dialog.
- The dialog title is **Add company**. It says: **The new company is yours to run: you become its System admin and can open it from the company switcher. It can use this company's model keys; apps, accounts and channels aren't shared.**
- **Company name** is the name people see. **Studio address** is lowercase letters, numbers and dashes, and Falcon fills it in from the name until you edit it. **Web domain** is optional: **Leave empty to use this company's domain.**
- Choose **Add company** again. Falcon asks you to confirm it's you before the company is added. **Cancel** closes the dialog without adding one.
- When it is added, **All companies** says the name **was added. Open it from the list below.** Open it with **Open**, or from the company switcher. You are its first System admin.

## What the new company starts with

- It starts like a first company: default departments, default security settings and a System admin role. Its spending policy is the default until a System admin saves limits there.
- It can use this company's model keys for calls. It never sees, replaces or removes those keys. Its own key for a provider is used instead. See [Use the parent company's models](https://falcon.com/docs/sub-company-models) and [Add the sub-company's own key](https://falcon.com/docs/sub-company-own-key).
- Apps, connected accounts, channels and identities stay with each company. Nothing else is copied across.
- Its usage is billed to this company while the link lasts. See [How a sub-company's usage is billed](https://falcon.com/docs/sub-company-billing).

## Related

- [Use the parent company's models](https://falcon.com/docs/sub-company-models)
- [Add the sub-company's own key](https://falcon.com/docs/sub-company-own-key)
- [How a sub-company's usage is billed](https://falcon.com/docs/sub-company-billing)
- [Detach a sub-company](https://falcon.com/docs/detach-a-sub-company)