# ListPlus, free: Company discovery API

> the companies a count_companies question found, into a company list in ListPlus: name, domain, website, industry, size, place, LinkedIn page.

ListPlus' Basic plan for the company discovery API costs $0.00 per 1,000 companies. We check each provider's docs for 13 fields. ListPlus' docs list 4: Industry, Employees, Social profiles, Locations.
We haven't run ListPlus through [our company discovery API benchmark](https://datacircle.dev/best-company-discovery-api.txt) yet.
This plan is free. We rank 1,345 plans for company discovery APIs by price. Half the plans cost $0.45 or less per 1,000 companies. [649 company discovery API plans on our price sheet are free.](https://datacircle.dev/best-company-discovery-api.txt) [AdLibrarySpy's free plan](https://datacircle.dev/company-discovery-apis/adlibraryspy/free/llms.txt) scores highest of the free plans in our benchmark, at 67.3 out of 100.
[StackScan's $189 monthly plan](https://datacircle.dev/company-discovery-apis/stackscan/189-monthly-enterprise-post-v1-tech-lookup-lists/llms.txt) is the cheapest paid plan per 1,000 companies, with no charge per call. You get as many companies as StackScan's rate limit allows. [Seltz's pay-as-you-go plan](https://datacircle.dev/company-discovery-apis/seltz/pay-as-you-go-pay-as-you-go-post-v1-search-search-base/llms.txt) costs the least for 10,000 companies a month: $0.03.
[PeopleSearch.im's $5 pack](https://datacircle.dev/company-discovery-apis/peoplesearch-im/5-pack/llms.txt) covers any number of companies, and costs less up front than StackScan's $189 monthly plan.
[GetProspect](https://datacircle.dev/company-discovery-apis/getprospect/49-monthly/llms.txt), [Hunter](https://datacircle.dev/company-discovery-apis/hunter/49-monthly-starter-post-discover/llms.txt) and [PeopleSearch.im](https://datacircle.dev/company-discovery-apis/peoplesearch-im/5-pack/llms.txt) are the best company discovery API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/company-discovery-apis/listplus/free
- [Company discovery API in 2026: the best of 100+ compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://listplus.ai/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Request: `POST https://listplus.ai/a/v1/load_companies`
- API key: with the plan, on https://listplus.ai/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Its API docs: https://listplus.ai/a?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Sold by: ListPlus (https://listplus.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-11-10

## In the answer

- Completeness: 31%
- Industry: ✓
- Employees: ✓
- Social profiles: ✓
- Locations: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Repeat free: 1 hour
- Also pays for: from the same budget: enrich_records · verify_email · search_people · derive_column

## Overage

- Units cap: hard

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: the companies a count_companies question found, into a company list in ListPlus: name, domain, website, industry, size, place, LinkedIn page.

## Data

- Keep data: no limit
- Use data: The customer may use third-party data retrieved via the Service for its own business purposes within these Terms and the legal requirements. [...] The customer is in particular prohibited from [...] reselling or passing on data obtained via the Service to third parties as its own database or data product, or using it to build a competing service

## Plan

- Pay: $0
- You get: 25 credits
- Enough for: 100 results, once
- Expires: never

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: filters. Optional: limit, cursor, estimate, max_credits
- Method: POST
- Path: /load_companies

## About the plan

- Plan: Basic
- Who can get it: Businesses with a ListPlus account, no credit card

## The 7 fields the plan's answer can hold

name, domain, website, industry, size, location, LinkedIn URL

## ListPlus' plans (11)

- [ListPlus, free](https://datacircle.dev/company-discovery-apis/listplus/free/llms.txt): $0.00 per 1,000, 31% complete
- [ListPlus, $6 pack](https://datacircle.dev/company-discovery-apis/listplus/6-pack/llms.txt): $10.00 per 1,000, 31% complete
- [ListPlus, $9 pack](https://datacircle.dev/company-discovery-apis/listplus/9-pack/llms.txt): $15.00 per 1,000, 31% complete
- [ListPlus, $18 pack](https://datacircle.dev/company-discovery-apis/listplus/18-pack/llms.txt): $9.00 per 1,000, 31% complete
- [ListPlus, $30 pack](https://datacircle.dev/company-discovery-apis/listplus/30-pack/llms.txt): $15.00 per 1,000, 31% complete
- [ListPlus, $35 pack](https://datacircle.dev/company-discovery-apis/listplus/35-pack/llms.txt): $8.75 per 1,000, 31% complete
- [ListPlus, $60 pack](https://datacircle.dev/company-discovery-apis/listplus/60-pack/llms.txt): $15.00 per 1,000, 31% complete
- [ListPlus, $115 pack](https://datacircle.dev/company-discovery-apis/listplus/115-pack/llms.txt): $8.214 per 1,000, 31% complete
- [ListPlus, $199 pack](https://datacircle.dev/company-discovery-apis/listplus/199-pack/llms.txt): $14.214 per 1,000, 31% complete
- [ListPlus, $79 monthly](https://datacircle.dev/company-discovery-apis/listplus/79-monthly/llms.txt): $8.75 per 1,000, 31% complete
- [ListPlus, $790 yearly](https://datacircle.dev/company-discovery-apis/listplus/790-yearly/llms.txt): $8.75 per 1,000, 31% complete

## ListPlus' calls for this API (1)

- `POST /load_companies`: [ListPlus, free](https://datacircle.dev/company-discovery-apis/listplus/free/llms.txt)

## ListPlus' APIs (5)

- [ListPlus Company discovery API pricing, 11 plans](https://datacircle.dev/company-discovery-apis/listplus/free/llms.txt)
- [ListPlus Email verification API pricing, 11 plans](https://datacircle.dev/validate-email-apis/listplus/free/llms.txt)
- [ListPlus Email finder API pricing, 11 plans](https://datacircle.dev/find-email-apis/listplus/free/llms.txt)
- [ListPlus Phone finder API pricing, 11 plans](https://datacircle.dev/find-phone-apis/listplus/free/llms.txt)
- [ListPlus People search API pricing, 11 plans](https://datacircle.dev/people-search-apis/listplus/free/llms.txt)

## ListPlus: company discovery API alternatives

[ListPlus alternatives: other company discovery API providers by price](https://datacircle.dev/listplus-alternatives.txt)

We list ListPlus' cheapest paid plan first. Next we list other providers' plans closest to ListPlus in price per 1,000 companies.

- [ListPlus, $115 pack](https://datacircle.dev/company-discovery-apis/listplus/115-pack/llms.txt): $8.214 per 1,000, 31% complete
- [ListSignal, $1,490 yearly, Pro, GET /api/v1/query](https://datacircle.dev/company-discovery-apis/listsignal/1490-yearly-pro-get-api-v1-query/llms.txt): $8.278 per 1,000, 38% complete, 1 month
- [Firmoscop, RON 590 yearly](https://datacircle.dev/company-discovery-apis/firmoscop/ron-590-yearly/llms.txt): $8.303 per 1,000, 15% complete
- [The Swarm, $5,000 yearly, Premium 1000, POST /v3/companies/fetch](https://datacircle.dev/company-discovery-apis/the-swarm/5000-yearly-premium-1000-post-v3-companies-fetch/llms.txt): $8.333 per 1,000, 77% complete, stored
- [Bytemine, $2,500 monthly](https://datacircle.dev/company-discovery-apis/bytemine/2500-monthly/llms.txt): $8.333 per 1,000, 54% complete, 1 day

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-10.

- https://listplus.ai/a?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://listplus.ai/en/help/ai-agents-api/agent-keys.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://listplus.ai/en/help/plans-credits-billing/buying-credits?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://listplus.ai/en/help/plans-credits-billing/credits-explained?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://listplus.ai/en/help/plans-credits-billing/price-list?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://listplus.ai/en/help/plans-credits-billing/refunds?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://listplus.ai/en/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://listplus.ai/en/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://listplus.ai/llms-full.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://listplus.ai/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing