> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cometly.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Companies

> Every company created in the export window.

## What it is

The **Companies** dataset is one row per company created in your space within the window. It's the simplest dataset — one table, **no joins**.

* **Grain:** one row per company (`id`).
* **Windowed on:** `created_at` (UTC timestamp) — the company's creation time.
* **Path segment:** `companies`.

A company's identity within a space is its **domain** (unique). The numeric `id` is also locked because it's what the [Contacts](/data-warehouse/datasets/contacts) dataset's `primary_company_id` references — it's the key for joining the two exports in your warehouse.

<Note>
  Like [Contacts](/data-warehouse/datasets/contacts), companies are mutable. Each run carries a
  company's state **as of run time**, but a company created *before* the window is not re-exported
  when it later changes. For a full refresh, run a one-time export over all history.
</Note>

## Columns

### Company fields

| Column       | Status   | Description                                                                          |
| ------------ | -------- | ------------------------------------------------------------------------------------ |
| `id`         | Locked   | Company ID — the join key referenced by the Contacts dataset's `primary_company_id`. |
| `domain`     | Locked   | The company's domain — its unique identifier within the space.                       |
| `created_at` | Locked   | When the company was created (UTC).                                                  |
| `name`       | Optional | Display name.                                                                        |
| `updated_at` | Optional | When the company was last updated (UTC).                                             |