---
title: "Listed Companies"
method: GET
path: "/compliance/companies"
tags: ["Facility Compliance & Emissions"]
---

# Listed Companies

`GET /compliance/companies`

## Request

- Base URL: `https://api.dataporium.io`
- URL: `https://api.dataporium.io/compliance/companies`
- Auth: API key in query parameter `apikey`

With ticker: one listed company's facilities by year and kind (inspections, violations, serious violations, penalties, enforcement actions) since 2010, its greenhouse gas emissions by year, its facilities by state, its 10 largest cases and its 10 largest emitters. Without ticker: listed companies ranked for a period.

One company answers {ticker, listed_company, period, facilities, facilities_by_state, workplace_safety, environmental, emissions, largest_cases, largest_emitters, data_date, about}, or 404 when no facility is linked. The ranking answers {total, limit, offset, sort, order, period, rows, about}.

## Query parameters

- `ticker` string
- `state` string
- `year_from` integer
- `sort` string
- `limit` integer

## Response `200`

Successful response (JSON).

- object

## Other responses

- `401`: No API key in the request.
- `403`: The API key is not valid or has expired.

---

[API](https://skmtc.dev/dataporium/apis/dataporium-data-api.md) · [All operations](https://skmtc.dev/dataporium/apis/dataporium-data-api/llms.txt) · [OpenAPI document](https://skmtc.dev/dataporium/apis/dataporium-data-api/revisions/8bc593179dc8?raw)