# Signalbase, free: Cached company enrichment API

> Submit company lists for enrichment with funding, acquisition, hiring, job change, and investor intelligence

Signalbase's cached company enrichment API on its 7-day trial plan. It costs $0.00 per 1,000 companies. It returns 4 of the 13 key fields we check: Industry, Employees, Headquarters, Funding.
The cheapest of the 322 plans we rank by price is [Extruct, $49 monthly](https://datacircle.dev/cached-company-enrichment-apis/extruct/49-monthly/llms.txt), at no cost per call.

- This page: https://datacircle.dev/cached-company-enrichment-apis/signalbase/free
- [Best cached company enrichment API in 2026](https://datacircle.dev/best-cached-company-enrichment-api.txt)
- Get it: https://www.trysignalbase.com/pricing
- Its API docs: https://docs.trysignalbase.com/api-reference/csv-enrichment/endpoint/post
- Sold by: Signalbase (https://www.trysignalbase.com)
- Checked: 2026-10-26

## In the answer

- Completeness: 31%
- Industry: ✓
- Employees: ✓
- Headquarters: ✓
- Funding: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Get Funding Signals · Get Acquisition Signals · Get Job Change Signals · Get Hiring Signals · Get Investors · Get Companies · Search People · Successful webhook delivery

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Submit company lists for enrichment with funding, acquisition, hiring, job change, and investor intelligence

## Data

- Freshness: stored
- Keep data: no API terms
- Use data: “Not on the €99 plan, whose terms are own-use only. Redistribution and white-label API access are licensed separately, sized to your volume and scope in a conversation.”

## Plan

- Pay: $0
- You get: 500 credits
- Enough for: 500,000 results, once
- Expires: 7 days

## Rate limit

- Batch: 1,000

## Speed

- Answer: in the call or by polling
- Median: 18.94 s

## The call

- You send: companies, one of companies[].company_name, companies[].website_url or companies[].linkedin_url. Optional: fileName, wait, timeout
- Method: POST
- Path: /csv-enrichment

## About the plan

- Plan: 7-day trial
- Who can get it: smaller recruitment agencies and solo recruiters running their own business development

## The 30 fields the plan's answer can hold

job ID, detected mapping, status, companies processed, companies total, submitted at, completed at, total inputs, matched count, unmatched count, companies with funding signals, companies with acquisition signals, companies with hiring signals, companies with job change signals, input, matched, company ID, name, domain, industry, country, employee count, funding signals, acquisition signals, hiring signals, job change signals, investor signals, next cursor, credits used, credits remaining

## Signalbase's plans (3)

- [Signalbase, free](https://datacircle.dev/cached-company-enrichment-apis/signalbase/free/llms.txt): $0.00 per 1,000, 31% complete, stored
- [Signalbase, €99 monthly](https://datacircle.dev/cached-company-enrichment-apis/signalbase/99-monthly/llms.txt): $0.056 per 1,000, 31% complete, stored
- [Signalbase, contact us](https://datacircle.dev/cached-company-enrichment-apis/signalbase/contact-us/llms.txt): 31% complete, stored

## Signalbase's calls for this API (1)

- `POST /csv-enrichment`: [Signalbase, free](https://datacircle.dev/cached-company-enrichment-apis/signalbase/free/llms.txt)

## Signalbase's APIs (6)

- [Signalbase: cached company discovery API pricing, 3 plans](https://datacircle.dev/cached-company-discovery-apis/signalbase/free/llms.txt)
- [Signalbase: cached company enrichment API pricing, 3 plans](https://datacircle.dev/cached-company-enrichment-apis/signalbase/free/llms.txt)
- [Signalbase: cached company funding API pricing, 3 plans](https://datacircle.dev/cached-company-funding-apis/signalbase/free/llms.txt)
- [Signalbase: cached job postings API pricing, 3 plans](https://datacircle.dev/cached-job-posting-apis/signalbase/free/llms.txt)
- [Signalbase: cached leadership change API pricing, 3 plans](https://datacircle.dev/cached-leadership-change-apis/signalbase/free/llms.txt)
- [Signalbase: cached people search API pricing, 3 plans](https://datacircle.dev/cached-people-search-apis/signalbase/free/llms.txt)

## Signalbase: cached company enrichment API alternatives

- [SalesQL, $1,071 yearly](https://datacircle.dev/cached-company-enrichment-apis/salesql/1071-yearly/llms.txt): $0.149 per 1,000, 46% complete, stored
- [JobsPipe, $5,244 yearly, Business, billed yearly, GET /v1/companies/{key}](https://datacircle.dev/cached-company-enrichment-apis/jobspipe/5244-yearly-business-billed-yearly-get-v1-companies-key/llms.txt): $0.874 per 1,000, 46% complete, stored
- [The Companies API, $2,950 yearly, Scaleup, GET /v2/companies/{domain}](https://datacircle.dev/cached-company-enrichment-apis/the-companies-api/2950-yearly-scaleup-get-v2-companies-domain/llms.txt): $0.983 per 1,000, 92% complete, stored
- [CompanyEnrich, $549 monthly, Scale, POST /companies/enrich/batch, Batch enrich](https://datacircle.dev/cached-company-enrichment-apis/companyenrich/549-monthly-scale-post-companies-enrich-batch/llms.txt): $1.098 per 1,000, 85% 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 2026-10-26.

- https://docs.trysignalbase.com/api-reference/csv-enrichment/endpoint/post.md
- https://docs.trysignalbase.com/api-reference/csv-enrichment/introduction
- https://docs.trysignalbase.com/api-reference/monitors/introduction
- https://docs.trysignalbase.com/index.md
- https://docs.trysignalbase.com/llms.txt
- https://www.trysignalbase.com
- https://www.trysignalbase.com/llms.txt
- https://www.trysignalbase.com/pricing