# Mapping API | List all companies by sector

> Get a list of all companies operating in a given sector, such as technology.

Source: https://sec-api.io/docs/mapping-api/list-companies-by-sector

Generate a list of all companies operating in a given sector. The set includes listed and delisted companies.

Supported sectors: Technology, Communication Services, Healthcare, Consumer Cyclical, Consumer Defensive, Basic Materials, Financial Services, Industrials, Real Estate, Energy, Utilities

## API Endpoint

https://api.sec-api.io/mapping/sector/<SECTOR>

Replace `<SECTOR>` with a sector from the list of supported sectors to retrieve a list of companies operating in the sector.

Supported HTTP methods: `GET`

Response format: `JSON`

### Example

Request: `GET` https://api.sec-api.io/mapping/sector/technology?token=YOUR_API_KEY

Response:

JSON

```json
[
    {
        "name": "Applied Optoelectronics Inc",
        "ticker": "AAOI",
        "cik": "1158114",
        "cusip": "03823U102",
        "exchange": "NASDAQ",
        "isDelisted": false,
        "category": "Domestic Common Stock",
        "sector": "Technology",
        "industry": "Semiconductors",
        "sic": "3674",
        "sicSector": "Manufacturing",
        "sicIndustry": "Semiconductors & Related Devices",
        "famaSector": "",
        "famaIndustry": "Electronic Equipment",
        "currency": "USD",
        "location": "Texas; U.S.A",
        "id": "8fd5115ee5edf28e69bcbab827fbb39a"
    },
    {
        "name": "Apple Inc",
        "ticker": "AAPL",
        "cik": "320193",
        "cusip": "037833100",
        "exchange": "NASDAQ",
        "isDelisted": false,
        "category": "Domestic Common Stock",
        "sector": "Technology",
        "industry": "Consumer Electronics",
        "sic": "3571",
        "sicSector": "Manufacturing",
        "sicIndustry": "Electronic Computers",
        "famaSector": "",
        "famaIndustry": "Computers",
        "currency": "USD",
        "location": "California; U.S.A",
        "id": "34046f9c9f77cbfdf64b4d15f9846570"
    },
    {
        "name": "Autoscope Technologies Corp",
        "ticker": "AATC",
        "cik": "943034",
        "cusip": "45244C104 053306106",
        "exchange": "NASDAQ",
        "isDelisted": false,
        "category": "Domestic Common Stock",
        "sector": "Technology",
        "industry": "Scientific & Technical Instruments",
        "sic": "3829",
        "sicSector": "Manufacturing",
        "sicIndustry": "Measuring & Controlling Devices Nec",
        "famaSector": "",
        "famaIndustry": "Measuring and Control Equipment",
        "currency": "USD",
        "location": "Minnesota; U.S.A",
        "id": "c0a4d9fadfcb84f605114e875b2469bb"
    }
    ... more results
]
```