# Deepline, top-up: Company discovery API

> Free company search over ~35M companies: filter by industry, location, employee count, founding year, name or domain. Returns company name, domain, industry, location, LinkedIn URL and headcount.

Deepline's company discovery API on its Pay as you go plan. It costs $0.00 per 1,000 companies. It returns 5 of the 13 key fields we check: Industry, Type and status, Employees, Social profiles, Locations.
This call costs no credits. Deepline limits how many results you get, but doesn't say how many.
Half of the 533 plans we rank by price cost $2.00 per 1,000 companies or less. This plan is the cheapest of the 533 plans.
[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 [Skrapp](https://datacircle.dev/company-discovery-apis/skrapp/349-monthly/llms.txt) are the best company discovery API providers in our benchmark.

- This page: https://datacircle.dev/company-discovery-apis/deepline/top-up
- [Best company discovery API in 2026](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://deepline.com/pricing
- Request: `POST https://code.deepline.com/api/v2/integrations/free_simple_company_search/execute`
- API key: with the plan, on https://deepline.com/pricing
- Its API docs: https://deepline.com/docs/providers/deepline_native/free-simple-company-search
- Sold by: Deepline (https://deepline.com)
- Checked: 2026-10-23

## In the answer

- Completeness: 38%
- Industry: ✓
- Type and status: ✓
- Employees: ✓
- Social profiles: ✓
- Locations: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Most per search: 100,000
- Also pays for: from the same budget: 585 other calls

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Free company search over ~35M companies: filter by industry, location, employee count, founding year, name or domain. Returns company name, domain, industry, location, LinkedIn URL and headcount.

## Data

- Freshness: stored
- Keep data: no limit set, data from third-party providers must comply with those providers' terms
- Use data: Aero grants you a limited, personal, non-exclusive, non-transferable, non-sublicensable, revocable license to access and use the Services solely for your internal business or personal purposes. [...] You may not use the Services, or any data, output, content, documentation, or other information obtained through the Services, for the purpose of: (a) developing, training, improving, designing, distributing, or marketing any product or service that is similar to or competitive with the Services, (b) competitive analysis, benchmarking, or evaluation for the purpose of building or improving a substantially similar product, or (c) the benefit of any entity that develops, distributes, or markets a product that competes with the Services [...]. [...] You are responsible for ensuring that your use of any data obtained through the Services, including data sourced from third-party providers integrated with the Services, complies with the terms of those third-party providers and with all applicable law, including privacy, data-protection, and anti-discrimination law.

## Plan

- Expires: purchased credits at least 12 months from the purchase date

## Rate limit

- Per second: 5
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: payload.sql
- Method: POST
- Path: /api/v2/integrations/free_simple_company_search/execute

## About the plan

- Plan: Pay as you go
- Who can get it: anyone aged 18 or over

## The 13 fields the plan's answer can hold

source record ID, normalized domain, domain, company name, industry, location, LinkedIn URL, employee count, year founded, updated at, total results, results returned, truncated

## Deepline's plans (3)

- [Deepline, top-up](https://datacircle.dev/company-discovery-apis/deepline/top-up/llms.txt): $0.00 per 1,000, 38% complete, stored
- [Deepline, $395 monthly](https://datacircle.dev/company-discovery-apis/deepline/395-monthly/llms.txt): 38% complete, stored
- [Deepline, contact us](https://datacircle.dev/company-discovery-apis/deepline/contact-us/llms.txt): 38% complete, stored

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

- `POST /api/v2/integrations/free_simple_company_search/execute`: [Deepline, top-up](https://datacircle.dev/company-discovery-apis/deepline/top-up/llms.txt)

## Deepline's APIs (8)

- [Deepline: company discovery API pricing, 3 plans](https://datacircle.dev/company-discovery-apis/deepline/top-up/llms.txt)
- [Deepline: company enrichment API pricing, 3 plans](https://datacircle.dev/company-enrichment-apis/deepline/top-up/llms.txt)
- [Deepline: company funding API pricing, 3 plans](https://datacircle.dev/company-funding-apis/deepline/top-up/llms.txt)
- [Deepline: email finder API pricing, 3 plans](https://datacircle.dev/find-email-apis/deepline/top-up/llms.txt)
- [Deepline: phone finder API pricing, 3 plans](https://datacircle.dev/find-phone-apis/deepline/top-up/llms.txt)
- [Deepline: people enrichment API pricing, 3 plans](https://datacircle.dev/person-enrichment-apis/deepline/top-up/llms.txt)
- [Deepline: LinkedIn profile API pricing, 3 plans](https://datacircle.dev/linkedin-profile-apis/deepline/top-up/llms.txt)
- [Deepline: people search API pricing, 3 plans, POST /api/v2/integrations/prospector/execute](https://datacircle.dev/people-search-apis/deepline/top-up-pay-as-you-go-post-api-v2-integrations-prospector-execute/llms.txt)
- [Deepline: people search API pricing, 3 plans, POST /api/v2/integrations/search_contact/execute](https://datacircle.dev/people-search-apis/deepline/top-up-pay-as-you-go-post-api-v2-integrations-search-contact-execute/llms.txt)

## Deepline: company discovery API alternatives

- [GetProspect, free](https://datacircle.dev/company-discovery-apis/getprospect/free/llms.txt): $0.00 per 1,000, 62% complete, stored
- [Hunter, free, POST /discover](https://datacircle.dev/company-discovery-apis/hunter/free-post-discover/llms.txt): $0.00 per 1,000, 54% complete, stored
- [PeopleSearch.im, free](https://datacircle.dev/company-discovery-apis/peoplesearch-im/free/llms.txt): $0.00 per 1,000, 38% complete, stored
- [graph8, free](https://datacircle.dev/company-discovery-apis/graph8/free/llms.txt): $0.00 per 1,000, 69% 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 2026-10-23.

- https://code.deepline.com/api/v2/tools
- https://deepline.com
- https://deepline.com/aup
- https://deepline.com/docs/_generated/pricing/deepline_native
- https://deepline.com/docs/api-reference
- https://deepline.com/docs/free-company-search-database
- https://deepline.com/docs/pricing
- https://deepline.com/docs/providers/deepline_native/free-simple-company-search
- https://deepline.com/pricing
- https://deepline.com/terms