You can now filter public companies by the stock exchange they're listed on, directly from the interface or through the API.

Supported indices include:

• NASDAQ

• NYSE (New York Stock Exchange)

• LSE (London Stock Exchange)

• XETR (Frankfurt Exchange)

• XPAR (Euronext Paris)

• XHKG (Hong Kong Stock Exchange)

• XNSE (India National Stock Exchange)

• XASX (Australian Securities Exchange)

• And more.

In the interface, use the Stock Index filter in the sidebar to refine your results instantly.

Via the API Use the about.stockIndex field in your query.

Example Find all companies listed on NASDAQ in the US:

import createClient from '@thecompaniesapi/sdk'

const tca = createClient({ apiToken: 'YOUR_API_TOKEN' }

const response = await tca.searchCompanies([
  {
    attribute: 'about.stockIndex',
    operator: 'or',
    sign: 'equals',
    values: ['NASDAQ']
  },
  {
    attribute: 'locations.headquarters.country.code',
    operator: 'or',
    sign: 'equals',
    values: ['us']
  }
])

You can combine this with filters like industry, revenue, employee count, or technologies to create precise, high-value segments.

→ Try it in the interface or explore in the API docs