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GET
List filters

Authorizations

Authorization
string
header
required

An API key issued by The Data City, sent as: Authorization: Bearer YOUR_KEY

Response

OK

Response model containing available filter options for US companies

TotalCompanies
integer<int32>
required

Total number of companies in the database

NAICS
object[] | null
required

Hierarchical list of NAIC codes with counts

RTICs
object[] | null
required

Real-Time Industrial Classifications (RTIC) filter options with company counts.

RNAICS
object[] | null
required

List of RNAIC codes with counts

States
object[] | null
required

List of states with counts

Last modified on July 30, 2026