# TechnologyChecker, free, Free, GET /v1/technology/{id}/companies: Company discovery API

> Get companies using a specific technology with optional filters for country, industry, employee count, city, state, company type, and founding year. Data from 25.4M LinkedIn company records.

TechnologyChecker's company discovery API on its Free plan, $0.00 per 1,000 companies. 6 of the 13 key fields: Industry, Type and status, Technologies, Employees, Social profiles, Headquarters.

- This page: https://datacircle.dev/company-discovery-apis/technologychecker/free-free-get-v1-technology-id-companies
- Get it: https://technologychecker.io/pricing
- Its API docs: https://technologychecker.io/docs/api-reference/company-data/get-companies-by-technology-api
- Sold by: TechnologyChecker (https://technologychecker.io)
- Checked: 2026-10-20

## In the answer

- Completeness: 46%
- Industry: ✓
- Type and status: ✓
- Technologies: ✓
- Employees: ✓
- Social profiles: ✓
- Headquarters: ✓

## Price

- $ per 1,000: $0.00
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Most per search: no limit
- Also pays for: Signal types index · Alerts: create, read, edit, test, delivery log · Audience create-from-upload, read, rename, delete, members · Lead list search, tech map, count preview, list, preview, export, delete · Usage, credits and key management · from the same budget: Domain lookup · Domain history · Domain tech changes · Find domains by technology · Technology lookup / search · Technology stats and trends · Market share · Company lookup · Company search · Batch company lookup (1 per domain) · Adoption, churn, switch and whitespace signals · Audience technology report · Audience breakdown · Segment technology stats · Build a computed audience · Live technology lookup · AI extractor · Lead list creation (1 per delivered row) · Signal CSV export (1 per exported row) · Churn validation · Audience refresh crawl · Alert crawl cadence

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Get companies using a specific technology with optional filters for country, industry, employee count, city, state, company type, and founding year. Data from 25.4M LinkedIn company records.

## Data

- Freshness: stored
- Keep data: Cached data must be refreshed at intervals consistent with your subscription plan
- Use data: You may integrate API data into your internal business applications, CRM systems, and workflows [...] You may not redistribute raw API data to third parties or make it publicly accessible without our written consent [...] You may not use API data to create a competing technology detection service or database [...] You must comply with all applicable data protection laws when processing personal data obtained through the API [...] The following activities are strictly prohibited: [...] Reselling, redistributing, sublicensing, or otherwise making the Service or its data available to third parties without our prior written consent [...] Using the Service or its data to build a competing product, service, or database [...] Using the Service to send unsolicited commercial communications (spam), including bulk emails, cold calls, or messages to contacts obtained through the Service without a legitimate legal basis

## Plan

- Pay: $0
- You get: 100 credits a month
- Expires: at the monthly reset, credits don't roll over

## Rate limit

- Per second: 1

## Speed

- Answer: in the call

## The call

- You send: id (in the path). Optional: country, city, state, industry, industry_code, employees, company_type, founded_min, founded_max, limit, offset
- Method: GET
- Path: /v1/technology/{id}/companies

## About the plan

- Plan: Free
- Who can get it: anyone 18 or over, for individual evaluation: the free plan may not be used for commercial-scale operations

## The 17 fields the plan's answer can hold

domain, subdomains, company name, LinkedIn URL, industry, industry code, country, city, state, founded, employee count range, company type, associated members, technologies, technology ID, technology category, total results

## TechnologyChecker's plans (6)

- [TechnologyChecker, free, Free, GET /v1/technology/{id}/companies](https://datacircle.dev/company-discovery-apis/technologychecker/free-free-get-v1-technology-id-companies/llms.txt): $0.00 per 1,000, 46% complete, stored
- [TechnologyChecker, $89 monthly, Pro, GET /v1/technology/{id}/companies](https://datacircle.dev/company-discovery-apis/technologychecker/89-monthly-pro-get-v1-technology-id-companies/llms.txt): 46% complete, stored
- [TechnologyChecker, $249 monthly, Scale, GET /v1/technology/{id}/companies](https://datacircle.dev/company-discovery-apis/technologychecker/249-monthly-scale-get-v1-technology-id-companies/llms.txt): 46% complete, stored
- [TechnologyChecker, $890 yearly, Pro, GET /v1/technology/{id}/companies](https://datacircle.dev/company-discovery-apis/technologychecker/890-yearly-pro-get-v1-technology-id-companies/llms.txt): 46% complete, stored
- [TechnologyChecker, $2,490 yearly, Scale, GET /v1/technology/{id}/companies](https://datacircle.dev/company-discovery-apis/technologychecker/2490-yearly-scale-get-v1-technology-id-companies/llms.txt): 46% complete, stored
- [TechnologyChecker, contact us, Enterprise, GET /v1/technology/{id}/companies](https://datacircle.dev/company-discovery-apis/technologychecker/contact-us-enterprise-get-v1-technology-id-companies/llms.txt): 46% complete, stored

## TechnologyChecker's calls (3)

- `GET /v1/technology/name/{name}/domains`: [TechnologyChecker, free, Free, GET /v1/technology/name/{name}/domains](https://datacircle.dev/company-discovery-apis/technologychecker/free-free-get-v1-technology-name-name-domains/llms.txt)
- `GET /v1/technology/{id}/companies`: [TechnologyChecker, free, Free, GET /v1/technology/{id}/companies](https://datacircle.dev/company-discovery-apis/technologychecker/free-free-get-v1-technology-id-companies/llms.txt)
- `GET /v1/companies`: [TechnologyChecker, free, Free, GET /v1/companies](https://datacircle.dev/company-discovery-apis/technologychecker/free-free-get-v1-companies/llms.txt)

## Similar plans of other providers

- [The Companies API, free, Free, GET /v2/companies](https://datacircle.dev/company-discovery-apis/the-companies-api/free/llms.txt): $0.00 per 1,000, 92% complete, stored
- [TheirStack, free](https://datacircle.dev/company-discovery-apis/theirstack/free/llms.txt): $0.00 per 1,000, 77% complete, stored
- [ZoomInfo, free](https://datacircle.dev/company-discovery-apis/zoominfo/free/llms.txt): $0.00 per 1,000, 31% complete, stored
- [The Swarm, free](https://datacircle.dev/company-discovery-apis/the-swarm/free/llms.txt): $0.00 per 1,000, 0% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-20.

- https://technologychecker.io/docs/api-reference/company-data/get-companies-by-technology-api
- https://technologychecker.io/docs/api-reference/credits
- https://technologychecker.io/docs/api-reference/openapi.json
- https://technologychecker.io/docs/api-reference/rate-limits
- https://technologychecker.io/docs/features/our-data
- https://technologychecker.io/pricing
- https://technologychecker.io/terms-of-use