# Thinknum, contact us, Request Demo, POST /datasets/linkedin_company/query/: Company headcount API

> Thinknum's "LinkedIn Profile" dataset tracks the aggregated number of profiles which list a company as their employer. As a proxy to measure employee headcount, users will be able to see whether a company is gaining or losing employees over time.

Thinknum's company headcount API on its Request Demo plan. It returns 2 of the 5 key fields we check: Total, Company.
We haven't run Thinknum through [our company headcount API benchmark](https://datacircle.dev/best-company-headcount-api.txt) yet.
Thinknum gives this plan's price on request. We rank 213 plans for company headcount APIs by price. Half the plans cost $9.00 per 1,000 companies or less.
[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) is the cheapest paid plan 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.
[BlitzAPI](https://datacircle.dev/company-headcount-apis/blitzapi/499-monthly-scale-post-v2-enrichment-company-distribution-by-country/llms.txt), [Up2Data](https://datacircle.dev/company-headcount-apis/up2data/25-pack-10k-post-v1-companies-headcount/llms.txt) and [Skrapp](https://datacircle.dev/company-headcount-apis/skrapp/349-monthly-enterprise-50k-get-api-v3-companies-enrich/llms.txt) are the best company headcount API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/company-headcount-apis/thinknum/contact-us-request-demo-post-datasets-linkedin-company-query
- [Company headcount API: 8 providers compared](https://datacircle.dev/best-company-headcount-api.txt)
- Get it: https://www.thinknum.com/demo/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing
- Request: `POST https://data.thinknum.com/datasets/linkedin_company/query/`
- API key: with the plan, on https://www.thinknum.com/demo/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing
- Its API docs: https://docs.thinknum.com/docs/query-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing#how-query-endpoint-works
- Sold by: Thinknum (https://www.thinknum.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing)
- Checked: 2026-11-04

## In the answer

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

## Price

- Billing: contact

## Aggregators

- Aggregators: none

## In their words

- Their pitch: Thinknum's "LinkedIn Profile" dataset tracks the aggregated number of profiles which list a company as their employer. As a proxy to measure employee headcount, users will be able to see whether a company is gaining or losing employees over time.

## Data

- Keep data: no API terms
- Use data: no API terms

## Rate limit

- Per second: 0.33

## Speed

- Answer: by polling

## The call

- You send: X-API-Version header "20151130". Optional: tickers, filters, groups, aggregations, sorts
- Method: POST
- Path: /datasets/linkedin_company/query/

## About the plan

- Plan: Request Demo
- Who can get it: a Thinknum subscriber (its docs: "you must first obtain a client_id and client_secret from your assigned Thinknum account manager")

## The 5 fields the plan's answer can hold

ticker symbol, GICS industry, headcount, followers, last date updated

## Thinknum's plans (1)

- [Thinknum, contact us, Request Demo, POST /datasets/linkedin_company/query/](https://datacircle.dev/company-headcount-apis/thinknum/contact-us-request-demo-post-datasets-linkedin-company-query/llms.txt): 40% complete

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

- `GET /companies/metrics`: [Thinknum, contact us, Request Demo, GET /companies/metrics](https://datacircle.dev/company-headcount-apis/thinknum/contact-us-request-demo-get-companies-metrics/llms.txt)
- `POST /datasets/linkedin_company/query/`: [Thinknum, contact us, Request Demo, POST /datasets/linkedin_company/query/](https://datacircle.dev/company-headcount-apis/thinknum/contact-us-request-demo-post-datasets-linkedin-company-query/llms.txt)

## Thinknum's APIs (4)

- [Thinknum: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/thinknum/contact-us/llms.txt)
- [Thinknum: company open jobs API pricing, 1 plan](https://datacircle.dev/company-open-job-apis/thinknum/contact-us/llms.txt)
- [Thinknum: job postings API pricing, 1 plan](https://datacircle.dev/job-posting-apis/thinknum/contact-us/llms.txt)
- [Thinknum: company headcount API pricing, 1 plan, POST /datasets/linkedin_company/query/](https://datacircle.dev/company-headcount-apis/thinknum/contact-us-request-demo-post-datasets-linkedin-company-query/llms.txt)

## Thinknum: company headcount API alternatives

- [Up2Data, contact us, Above 250M, POST /v1/batch](https://datacircle.dev/company-headcount-apis/up2data/contact-us-above-250m-post-v1-batch/llms.txt): 40% complete, live
- [Skrapp, contact us, Custom plan, POST /api/v3/companies/bulk-enrich](https://datacircle.dev/company-headcount-apis/skrapp/contact-us-custom-plan-post-api-v3-companies-bulk-enrich/llms.txt): 40% complete, stored
- [Pipecorn, contact us, Scale, custom volume, POST /accounts/headcount, Department headcount](https://datacircle.dev/company-headcount-apis/pipecorn/contact-us-scale-custom-volume-post-accounts-headcount-department-headcount/llms.txt): 40% complete, stored
- [The Swarm, contact us](https://datacircle.dev/company-headcount-apis/the-swarm/contact-us/llms.txt): 40% complete, stored
- [Revelio Labs, contact us](https://datacircle.dev/company-headcount-apis/revelio-labs/contact-us/llms.txt): 40% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-04.

- https://docs.thinknum.com/docs/-etc.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing
- https://docs.thinknum.com/docs/-sort.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing
- https://docs.thinknum.com/docs/3-groupaggregation.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing
- https://docs.thinknum.com/docs/authenticating.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing
- https://docs.thinknum.com/docs/new-query-api-1.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing
- https://docs.thinknum.com/docs/query-api.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing
- https://www.thinknum.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing
- https://www.thinknum.com/datasets?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing
- https://www.thinknum.com/datasets/linkedin_company?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing
- https://www.thinknum.com/demo/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing
- https://www.thinknum.com/tos?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-headcount-api-pricing