Company Lookup API

About the Company Lookup API

Company Lookup works by aggregating official SEC EDGAR company filings data. The database includes ~10,000 US public companies with their metadata, SIC codes, contact information, and former names. Data is refreshed weekly from SEC submissions.

What people use it for

Investor Search Autocomplete

Brokerage apps resolve user-typed company names to verified ticker symbols, trading exchanges, and SEC CIK numbers in real time.

Vendor Due Diligence

To confirm vendor tax identities, procurement teams match submitted business entities against official SEC Employer Identification Numbers and registered headquarters addresses.

Compliance Onboarding

When onboarding institutional accounts, KYC software reads state of incorporation, SEC filer category, and contact phone numbers directly from SEC records.

Industry Peer Screening

Filter publicly traded companies by four-digit SIC codes to build comparable company sets across specific manufacturing or technology segments.

Ways to call it

One endpoint, many ways in — REST with JSON, XML, YAML and CSV, plus GraphQL and an MCP interface for AI agents.

JSON

Default REST response

XML

Markup format

YAML

Human-readable

CSV

Tabular export

Beta

GraphQL

Query language

New

MCP

For AI agents

Request parameters — GET /v1/companylookup

Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them. Anything not listed here is dropped rather than passed through.

Required

1
2

curl "https://api.apiverve.com/v1/companylookup?ticker=AAPL" \
  -H "x-api-key: YOUR_API_KEY"

Authentication

Send your key in the x-api-key header. That is the only auth step — no token exchange, and no per-endpoint scope to configure.

Response — GET /v1/companylookup

Every APIVerve endpoint returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72

{
  "status": "ok",
  "error": null,
  "data": {
    "count": 1,
    "companies": [
      {
        "ticker": "AAPL",
        "cik": "0000320193",
        "name": "Apple Inc.",
        "tickers": [
          "AAPL"
        ],
        "exchanges": [
          "Nasdaq"
        ],
        "entityType": "operating",
        "sic": "3571",
        "sicDescription": "Electronic Computers",
        "sector": "Manufacturing",
        "category": "Large accelerated filer",
        "stateOfIncorporation": "CA",
        "fiscalYearEnd": "0926",
        "ein": "942404110",
        "phone": "(408) 996-1010",
        "addresses": {
          "mailing": {
            "street1": "ONE APPLE PARK WAY",
            "street2": null,
            "city": "CUPERTINO",
            "stateOrCountry": "CA",
            "zipCode": "95014",
            "stateOrCountryDescription": "CA",
            "isForeignLocation": 0,
            "foreignStateTerritory": null,
            "country": null,
            "countryCode": null
          },
          "business": {
            "street1": "ONE APPLE PARK WAY",
            "street2": null,
            "city": "CUPERTINO",
            "stateOrCountry": "CA",
            "zipCode": "95014",
            "stateOrCountryDescription": "CA",
            "isForeignLocation": null,
            "foreignStateTerritory": null,
            "country": null,
            "countryCode": null
          }
        },
        "formerNames": [
          {
            "name": "APPLE INC",
            "from": "2007-01-10T05:00:00.000Z",
            "to": "2019-08-05T04:00:00.000Z"
          },
          {
            "name": "APPLE COMPUTER INC",
            "from": "1994-01-26T05:00:00.000Z",
            "to": "2007-01-04T05:00:00.000Z"
          },
          {
            "name": "APPLE COMPUTER INC/ FA",
            "from": "1997-07-28T04:00:00.000Z",
            "to": "1997-07-28T04:00:00.000Z"
          }
        ]
      }
    ]
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Response headers

Every response carries your balance, so your own code always knows where it stands without polling anything. All four are exposed to browsers through CORS.

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change.

What a call costs — 2 credits per call

Credits are shared across every APIVerve API — one balance, one key, one bill. Failed requests never count against it, so a rejected input costs nothing.

Calls are what the credits buy at this API's rate — spend them here, on any of the other APIs, or across both. Nothing is reserved per endpoint.

Zero-code embed — one snippet, no backend

Drop an interactive Company Lookup form onto any page. The widget calls the API for you, so no key ever appears in your markup and there is nothing to deploy.

Changelog — Company Lookup API

Every change to this endpoint, newest first. Breaking changes ship as a new version and the previous one keeps serving — response fields are added, never removed or retyped in place, so an integration written against v1 keeps working.

Currently v1Data refreshed weekly