Uk Data Processing Companies Data: Dataset Structure and Field Coverage

Authentication uses HTTP basic access with a twist: your integration key goes in as the username and the password field stays blank, so a first call looks like `curl -XGET -u my_api_key: OAuth 2.0 bearer tokens cover end-user flows instead. TLS is required, with 1.2 recommended, and clients are told to tolerate changes in JSON member ordering plus previously unseen members - parse defensively.

One practical consequence: at 600 requests per 5 minutes, enumerating all 48,674 SIC 63110 companies item-by-item would take days. Use GET /advanced-search/companies with the sic_codes parameter instead - each result page carries up to 100 matching companies, so a full sweep of the code fits inside a few hundred paginated calls rather than tens of thousands.

Five steps take you from an empty terminal to a filtered extract of UK data processing companies:

Sample payloads in the catalog show the shape: IRISH PHONEBOOK LIMITED (NI604778) carrying sic_codes 63110, and DEALTRONIC LTD. (NI610031) carrying three codes, 46510, 62012 and 63110, which is why multi-code filtering matters when you define the market.