# ZoomInfo, free: Company headcount API

> Employee count and revenue range

ZoomInfo's company headcount API on its Free plan. It costs $0.00 per 1,000 companies. It returns 2 of the 5 key fields we check: Total, Company.
We rank 141 plans by price. [Financial Modeling Prep's $139 monthly plan](https://datacircle.dev/company-headcount-apis/financial-modeling-prep/139-monthly-ultimate-get-stable-employee-count/llms.txt) costs the least per 1,000 companies: as little as $0.0011. Financial Modeling Prep's $139 monthly plan covers up to 129,600,000 companies a month at no extra cost.
[Up2Data](https://datacircle.dev/company-headcount-apis/up2data/25-pack-10k-post-v1-companies-headcount/llms.txt), [Skrapp](https://datacircle.dev/company-headcount-apis/skrapp/349-monthly-enterprise-50k-get-api-v3-companies-enrich/llms.txt) and [BlitzAPI](https://datacircle.dev/company-headcount-apis/blitzapi/499-monthly-scale-post-v2-enrichment-company-distribution-by-country/llms.txt) are the best company headcount API providers in our benchmark.

- This page: https://datacircle.dev/company-headcount-apis/zoominfo/free
- [Best company headcount API in 2026](https://datacircle.dev/best-company-headcount-api.txt)
- Get it: https://gtm.ai/pricing
- Request: `POST https://api.zoominfo.com/gtm/data/v1/companies/enrich`
- API key: with the plan, on https://gtm.ai/pricing
- Its API docs: https://docs.gtm.ai/reference/enrichinterface_enrichcompany
- Sold by: ZoomInfo (https://gtm.ai)
- Checked: 2026-10-28

## In the answer

- Completeness: 40%
- Total: ✓
- Company: ✓

## Price

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

## Aggregators

- Aggregators: none

## Charges

- Repeat free: never
- Also pays for: Account Research · Contact Research · from the same budget: Enrich Contacts · Enrich Corporate Hierarchy · Enrich Intent · Enrich Technologies

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Employee count and revenue range

## Data

- Freshness: stored
- Keep data: 3.3.1 Expiration or Termination for any Reason. Upon expiration or termination of the Agreement for any reason: (a) Licensee may continue to use Licensed Materials obtained during the Term subject to the terms of this Agreement, (b) Licensee shall immediately cease accessing or using ZoomInfo Technology, and (c) Licensee acknowledges and agrees that its access to the Services may be automatically terminated, all passwords and individual accounts removed, and all information that has been uploaded into ZoomInfo’s systems by Licensee destroyed. [...] 5.4 Personal Information. [...] Within the ZoomInfo Technology, ZoomInfo may publish a list of persons who have requested that their personal information be removed from ZoomInfo’s database. Licensee agrees to review such list on a regular basis (no less frequently than once per month) and to remove from its possession any Licensed Materials Contact records relating to such persons in its possession, unless Licensee has established an independent lawful basis to process such person’s personal information.
- Use data: 2.3 Authorized Uses, Restrictions. Licensee shall not access or use the Services for any purpose except the business-to-business sales, marketing, recruiting, or business development activities of Licensee. Licensee shall not access or use the Licensed Materials for the benefit of or on behalf of any person or entity except Licensee. Subject to Licensee’s compliance with all applicable laws, rules, and regulations, Licensee may use the Services to: (a) view the Licensed Materials, (b) communicate with any Licensed Materials Contact in a manner that relates to such person’s profession, business, or employment, and (c) identify prospective sales opportunities, research Licensee’s existing customers and prospects, and otherwise analyze the Licensed Materials in a manner relating to Licensee’s business-to-business sales, marketing, recruiting, and business development activities. Licensee shall not permit anyone who is not an Authorized User to access or use the Services, including any Licensed Materials or any Authorized User login credentials. Licensee shall not distribute, sublicense, transfer, sell, offer for sale, disclose, or make available any of the Licensed Materials or any part of the Services to any third party. Except through services provided by ZoomInfo or its affiliates or as expressly permitted by ZoomInfo, Licensee shall not: (x) use the Licensed Materials to create audience segmentation for or otherwise place digital ads or ads in digital media (also known as onboarding or digital activation), or (y) utilize or incorporate any ZoomInfo API credentials into any Third Party Applications or use API access to create or develop audience segmentation outside of services provided by ZoomInfo. Licensee shall not incorporate any portion of the Services or Licensed Materials into Licensee’s own products or services. Licensee is solely responsible for any communications between Licensee or any Authorized User and any Licensed Materials Contact. Licensee shall not use the Services to determine a consumer’s eligibility for (a) credit or insurance for personal, family or household purposes, (b) employment or (c) a government license or benefit or (d) any other purpose governed by the Fair Credit Reporting Act. [...] 2.4 Permitted Use of ZoomInfo Technology, Restrictions. [...] Licensee will not [...] (g) disclose the results of any ZoomInfo Technology or program benchmark tests to any third parties without ZoomInfo’s prior written consent, [...]

## Plan

- Pay: $0
- You get: 1,000 credits
- Enough for: 1,000 results, once

## Rate limit

- Per day: 129,600
- Per second: 3
- Batch: 25

## Speed

- Answer: in the call

## The call

- You send: data.type "CompanyEnrich", data.attributes.outputFields "employeeCount", one of data.attributes.matchCompanyInput[].companyId, data.attributes.matchCompanyInput[].companyName, data.attributes.matchCompanyInput[].companyWebsite, data.attributes.matchCompanyInput[].companyTicker, data.attributes.matchCompanyInput[].companyPhone, data.attributes.matchCompanyInput[].companyFax, data.attributes.matchCompanyInput[].companyStreet, data.attributes.matchCompanyInput[].companyCity, data.attributes.matchCompanyInput[].companyState, data.attributes.matchCompanyInput[].companyZipCode, data.attributes.matchCompanyInput[].companyCountry or data.attributes.matchCompanyInput[].ipAddress
- Method: POST
- Path: /data/v1/companies/enrich

## About the plan

- Plan: Free
- Who can get it: employees of the company that holds the account (a contractor only with ZoomInfo's prior permission), each with their own login and a business email address

## The 9 fields the plan's answer can hold

company ID, name, employee count, employee range, one-year employee growth rate, two-year employee growth rate, employee growth data points, employee count by department, match status

## ZoomInfo's plans (14)

- [ZoomInfo, free](https://datacircle.dev/company-headcount-apis/zoominfo/free/llms.txt): $0.00 per 1,000, 40% complete, stored
- [ZoomInfo, $45 pack](https://datacircle.dev/company-headcount-apis/zoominfo/45-pack/llms.txt): $450.00 per 1,000, 40% complete, stored
- [ZoomInfo, $215 pack](https://datacircle.dev/company-headcount-apis/zoominfo/215-pack/llms.txt): $430.00 per 1,000, 40% complete, stored
- [ZoomInfo, $410 pack](https://datacircle.dev/company-headcount-apis/zoominfo/410-pack/llms.txt): $410.00 per 1,000, 40% complete, stored
- [ZoomInfo, $950 pack](https://datacircle.dev/company-headcount-apis/zoominfo/950-pack/llms.txt): $380.00 per 1,000, 40% complete, stored
- [ZoomInfo, $1,900 pack](https://datacircle.dev/company-headcount-apis/zoominfo/1900-pack/llms.txt): $380.00 per 1,000, 40% complete, stored
- [ZoomInfo, $2,850 pack](https://datacircle.dev/company-headcount-apis/zoominfo/2850-pack/llms.txt): $380.00 per 1,000, 40% complete, stored
- [ZoomInfo, $3,800 pack](https://datacircle.dev/company-headcount-apis/zoominfo/3800-pack/llms.txt): $380.00 per 1,000, 40% complete, stored
- [ZoomInfo, $4,800 pack](https://datacircle.dev/company-headcount-apis/zoominfo/4800-pack/llms.txt): $320.00 per 1,000, 40% complete, stored
- [ZoomInfo, $6,400 pack](https://datacircle.dev/company-headcount-apis/zoominfo/6400-pack/llms.txt): $320.00 per 1,000, 40% complete, stored
- [ZoomInfo, $8,700 pack](https://datacircle.dev/company-headcount-apis/zoominfo/8700-pack/llms.txt): $290.00 per 1,000, 40% complete, stored
- [ZoomInfo, $14,500 pack](https://datacircle.dev/company-headcount-apis/zoominfo/14500-pack/llms.txt): $290.00 per 1,000, 40% complete, stored
- [ZoomInfo, $25,000 pack](https://datacircle.dev/company-headcount-apis/zoominfo/25000-pack/llms.txt): $250.00 per 1,000, 40% complete, stored
- [ZoomInfo, contact us](https://datacircle.dev/company-headcount-apis/zoominfo/contact-us/llms.txt): 40% complete, stored

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

- `POST /data/v1/companies/enrich`: [ZoomInfo, free](https://datacircle.dev/company-headcount-apis/zoominfo/free/llms.txt)

## ZoomInfo's APIs (16)

- [ZoomInfo: LinkedIn profile API pricing, 14 plans](https://datacircle.dev/linkedin-profile-apis/zoominfo/free/llms.txt)
- [ZoomInfo: company discovery API pricing, 14 plans](https://datacircle.dev/company-discovery-apis/zoominfo/free/llms.txt)
- [ZoomInfo: company enrichment API pricing, 14 plans](https://datacircle.dev/company-enrichment-apis/zoominfo/free/llms.txt)
- [ZoomInfo: company headcount API pricing, 14 plans](https://datacircle.dev/company-headcount-apis/zoominfo/free/llms.txt)
- [ZoomInfo: company hierarchy API pricing, 14 plans](https://datacircle.dev/company-hierarchy-apis/zoominfo/free/llms.txt)
- [ZoomInfo: company open jobs API pricing, 14 plans](https://datacircle.dev/company-open-job-apis/zoominfo/free/llms.txt)
- [ZoomInfo: similar companies API pricing, 14 plans](https://datacircle.dev/similar-company-apis/zoominfo/free/llms.txt)
- [ZoomInfo: tech stack API pricing, 14 plans](https://datacircle.dev/company-technology-apis/zoominfo/free/llms.txt)
- [ZoomInfo: email finder API pricing, 14 plans](https://datacircle.dev/find-email-apis/zoominfo/free/llms.txt)
- [ZoomInfo: similar people API pricing, 14 plans](https://datacircle.dev/similar-people-apis/zoominfo/free/llms.txt)
- [ZoomInfo: phone finder API pricing, 14 plans](https://datacircle.dev/find-phone-apis/zoominfo/free/llms.txt)
- [ZoomInfo: people search API pricing, 14 plans](https://datacircle.dev/people-search-apis/zoominfo/free/llms.txt)
- [ZoomInfo: people enrichment API pricing, 14 plans](https://datacircle.dev/person-enrichment-apis/zoominfo/free/llms.txt)
- [ZoomInfo: reverse email lookup API pricing, 14 plans](https://datacircle.dev/reverse-email-lookup-apis/zoominfo/free/llms.txt)
- [ZoomInfo: company funding API pricing, 14 plans, POST /data/v1/companies/enrich](https://datacircle.dev/company-funding-apis/zoominfo/free-post-data-v1-companies-enrich/llms.txt)
- [ZoomInfo: company funding API pricing, 14 plans, POST /copilot/v1/companies/insights](https://datacircle.dev/company-funding-apis/zoominfo/free/llms.txt)
- [ZoomInfo: leadership change API pricing, 14 plans, POST /data/v1/scoops/enrich](https://datacircle.dev/leadership-change-apis/zoominfo/free-post-data-v1-scoops-enrich/llms.txt)
- [ZoomInfo: leadership change API pricing, 14 plans, POST /copilot/v1/companies/insights](https://datacircle.dev/leadership-change-apis/zoominfo/free-post-copilot-v1-companies-insights/llms.txt)

## ZoomInfo: company headcount API alternatives

- [Pipecorn, $149 monthly, Grow, 9,000 credits a month, POST /accounts/headcount, Department headcount](https://datacircle.dev/company-headcount-apis/pipecorn/149-monthly-grow-9000-credits-a-month-post-accounts-headcount-department-headcount/llms.txt): $16.556 per 1,000, 40% complete, stored
- [Skrapp, $349 monthly, Enterprise 50K, GET /api/v3/companies/enrich](https://datacircle.dev/company-headcount-apis/skrapp/349-monthly-enterprise-50k-get-api-v3-companies-enrich/llms.txt): $20.94 per 1,000, 40% complete, stored
- [The Swarm, $99 monthly](https://datacircle.dev/company-headcount-apis/the-swarm/99-monthly/llms.txt): $99.00 per 1,000, 40% complete, stored
- [Enrich Layer, $10 pack, PAYG $10, GET /api/v2/company/employees/count, Employee Count Endpoint, full](https://datacircle.dev/company-headcount-apis/enrich-layer/10-pack-payg-10-get-api-v2-company-employees-count-employee-count-endpoint-full/llms.txt): $200.00 per 1,000, 20% 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 2026-10-28.

- https://docs.gtm.ai/docs/credit-usage-and-limits
- https://docs.gtm.ai/docs/overview
- https://docs.gtm.ai/docs/rate-limits
- https://docs.gtm.ai/reference/enrichinterface_enrichcompany
- https://docs.gtm.ai/reference/enrichinterface_enrichcompany.md
- https://gtm.ai/content/docs/mcp/credits.md
- https://gtm.ai/docs/mcp/tools/enrich-companies
- https://gtm.ai/pricing
- https://www.zoominfo.com/legal/ltc