# Prometiam, free, POST /companies/lookup: Business verification API

> POST /companies/lookup resolves up to 100 companies in one call. Each item carries a country and either an identifier or a name, results come back in request order with a status of found, not_found, error or timeout.

Prometiam's business verification API on its Free plan. It costs $0.00 per 1,000 companies. It returns 7 of the 11 key fields we check: Registered name, Entity number, Tax ID, Entity type, Status, Formation date, Principal address.
We rank 652 plans by price. [cnpjob's R$349 monthly plan](https://datacircle.dev/business-verification-apis/cnpjob/r-349-monthly/llms.txt) is the cheapest paid plan per 1,000 companies: as little as $0.023. cnpjob's plan covers companies in Brazil only. cnpjob's R$349 monthly plan covers up to 3,000,000 companies a month at no extra cost.
[INSEE](https://datacircle.dev/business-verification-apis/insee/free/llms.txt), [CZ Agents](https://datacircle.dev/business-verification-apis/cz-agents/free/llms.txt) and [ARES](https://datacircle.dev/business-verification-apis/ares/free/llms.txt) are the best business verification API providers in our benchmark.

- This page: https://datacircle.dev/business-verification-apis/prometiam/free-post-companies-lookup
- [Best business verification API in 2026: pricing compared](https://datacircle.dev/best-business-verification-api.txt)
- Get it: https://www.prometiam.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Request: `POST https://api.prometiam.com/functions/v1/risk-api/companies/lookup`
- API key: with the plan, on https://www.prometiam.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Its API docs: https://www.prometiam.com/company-lookup-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- Sold by: Prometiam (https://www.prometiam.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing)
- Checked: 2026-11-01

## In the answer

- Completeness: 64%
- Registered name: ✓
- Entity number: ✓
- Tax ID: ✓
- Entity type: ✓
- Status: ✓
- Formation date: ✓
- Principal address: ✓

## Price

- $ per 1,000 companies: $0.00
- Per: result
- Billing: free

## Aggregators

- Aggregators: none

## Charges

- Also pays for: Subscribe a company to monitoring: 3 monitored companies · Annual financial statements of a company: 10 calls a month · Screen a name against sanctions lists (BETA): 25 calls a month · Search people by name: 25 calls a month · Get person by ID: 25 calls a month · Search corporate events, or a country's event feed: 25 calls a month · Get corporate event by ID: 25 calls a month · Corporate event timeline: 25 calls a month · from the same budget: Search companies · Get company by ID · Get company by its registry number · Find a company by any identifier · Search people by name · Get person by ID · Search corporate events, or a country's event feed · Get corporate event by ID · Corporate event timeline · Screen a name against sanctions lists (BETA) · Screen up to 50 names in one call · Director network graph · Validate an EU VAT number (VIES) · Look up a Legal Entity Identifier (GLEIF) · GLEIF Level 2 ownership (who owns whom) · Search the GLEIF LEI register by name · Search cross-border CORPORATE insolvency notices · Check up to 100 counterparties for corporate insolvency notices · Public-buyer risk profile (beta, ES + FR) · List scored public buyers by risk (beta, ES + FR) · Buyer-supplier relationship (beta, ES + FR) · List public-procurement awards (six countries) · Search insolvency / risk notices · Get insolvency notice by ID · Annual financial statements of a company

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: POST /companies/lookup resolves up to 100 companies in one call. Each item carries a country and either an identifier or a name, results come back in request order with a status of found, not_found, error or timeout.

## Data

- Freshness: stored
- Keep data: no limit
- Use data: The API is licensed for business verification, counterparty due diligence, KYB, anti-money-laundering screening and related compliance and risk workflows. Redistributing or reselling bulk registry data as a competing dataset is not permitted, except where a source's own licence gives everyone that right, those sources are listed in the terms. Keep the attribution and sources the API returns when you display or redistribute results.

## Plan

- Pay: €0
- You get: 500 credits
- Enough for: 500 results
- Expires: 14 days

## Rate limit

- Per day: 200
- Per second: 0.17
- Batch: 100

## Speed

- Answer: in the call

## The call

- You send: items. Optional: items[].country, items[].company_number, items[].nif, items[].siren, items[].vat, items[].name, Idempotency-Key header
- Method: POST
- Path: /companies/lookup

## About the plan

- Plan: Free
- Who can get it: anyone with a payment card: one 14-day trial per customer and per card

## The 67 fields the plan's answer can hold

match score, entity ID, country, entity number, legal name, previous names, identifiers, VAT number, VAT number source, LEI, legal form, legal form family, local legal form, local legal form name, status, stage, local status, status date, formation date, registration date, dissolution date, age in years, age band, age basis, industry code, industry code scheme, industry description, industry description in English, NACE class, NACE version, NACE division, NACE derived, NACE title, NACE Rev. 2 class, NACE Rev. 2 division, NACE Rev. 2.1 class, NACE Rev. 2.1 division, ISIC Rev. 4 class, NAICS sector, NAICS subsector, secondary industry codes, business purpose, registered address, postal code, city, municipality, region, address country, share capital, share capital currency, share capital in EUR, employees, employee band, EU size class, EU size range, EU size basis, fiscal year end month, website, website source, register, first seen date, last seen date, updated at, registry details, input index, input, lookup status

## Prometiam's plans (8)

- [Prometiam, free, POST /companies/lookup](https://datacircle.dev/business-verification-apis/prometiam/free-post-companies-lookup/llms.txt): $0.00 per 1,000, 64% complete, stored
- [Prometiam, €9.99 monthly, Starter, POST /companies/lookup](https://datacircle.dev/business-verification-apis/prometiam/9-99-monthly-starter-post-companies-lookup/llms.txt): $11.242 per 1,000, 64% complete, stored
- [Prometiam, €29.99 monthly, Professional, POST /companies/lookup](https://datacircle.dev/business-verification-apis/prometiam/29-99-monthly-professional-post-companies-lookup/llms.txt): $3.375 per 1,000, 64% complete, stored
- [Prometiam, €99.99 monthly, Scale, POST /companies/lookup](https://datacircle.dev/business-verification-apis/prometiam/99-99-monthly-scale-post-companies-lookup/llms.txt): $2.25 per 1,000, 64% complete, stored
- [Prometiam, €99.90 yearly, Starter, POST /companies/lookup](https://datacircle.dev/business-verification-apis/prometiam/99-90-yearly-starter-post-companies-lookup/llms.txt): $9.368 per 1,000, 64% complete, stored
- [Prometiam, €299.90 yearly, Professional, POST /companies/lookup](https://datacircle.dev/business-verification-apis/prometiam/299-90-yearly-professional-post-companies-lookup/llms.txt): $2.812 per 1,000, 64% complete, stored
- [Prometiam, €999.90 yearly, Scale, POST /companies/lookup](https://datacircle.dev/business-verification-apis/prometiam/999-90-yearly-scale-post-companies-lookup/llms.txt): $1.875 per 1,000, 64% complete, stored
- [Prometiam, contact us, Enterprise, POST /companies/lookup](https://datacircle.dev/business-verification-apis/prometiam/contact-us-enterprise-post-companies-lookup/llms.txt): 64% complete, stored

## Prometiam's calls for this API (2)

- `POST /companies/lookup`: [Prometiam, free, POST /companies/lookup](https://datacircle.dev/business-verification-apis/prometiam/free-post-companies-lookup/llms.txt)
- `GET /companies/search`: [Prometiam, free, GET /companies/search](https://datacircle.dev/business-verification-apis/prometiam/free-get-companies-search/llms.txt)

## Prometiam's APIs (2)

- [Prometiam: company enrichment API pricing, 8 plans](https://datacircle.dev/company-enrichment-apis/prometiam/free/llms.txt)
- [Prometiam: business verification API pricing, 8 plans, POST /companies/lookup](https://datacircle.dev/business-verification-apis/prometiam/free-post-companies-lookup/llms.txt)

## Prometiam: business verification API alternatives

- [CNPJa, R$24.99 monthly](https://datacircle.dev/business-verification-apis/cnpja/r-24-99-monthly/llms.txt): $0.492 per 1,000, 36% complete, stored
- [Infyner, ₹10,000 pack](https://datacircle.dev/business-verification-apis/infyner/10000-pack/llms.txt): $1.053 per 1,000, 27% complete, stored
- [OpenSOSData, $1,000 monthly, Enterprise Cached, POST /v1/lookup](https://datacircle.dev/business-verification-apis/opensosdata/1000-monthly-enterprise-cached-post-v1-lookup/llms.txt): $3.14 per 1,000, 100% complete, stored
- [CompanyLens, £2,868 yearly](https://datacircle.dev/business-verification-apis/companylens/2868-yearly/llms.txt): $3.187 per 1,000, 45% 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 2026-11-01.

- https://www.prometiam.com/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://www.prometiam.com/company-lookup-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://www.prometiam.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://www.prometiam.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://www.prometiam.com/risk-api/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing
- https://www.prometiam.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=business-verification-api-pricing