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

# List Companies

> List all companies with available filings, optionally filtered by exchange.

## Overview

Returns a list of companies that have filings available. Optionally filter by stock exchange. No authentication required.

## Request

<ParamField query="exchange" type="string">
  Filter by stock exchange code (e.g. `NYSE`, `NASDAQ`).
</ParamField>

<RequestExample>
  ```bash theme={null}
  curl "https://api.okrapdf.com/v1/companies?exchange=NASDAQ"
  ```
</RequestExample>

### Response

```json theme={null}
{
  "companies": [
    {
      "exchange": "NASDAQ",
      "ticker": "AAPL",
      "name": "Apple Inc."
    },
    {
      "exchange": "NASDAQ",
      "ticker": "MSFT",
      "name": "Microsoft Corporation"
    }
  ]
}
```