# Harmonic, contact us: Company discovery API > Find companies with natural language queries, such as fintech companies in New York that raised Series B funding in the last 6 months. Harmonic's company discovery API on its API access plan. It returns none of the 13 key fields we check: Description, Industry, Type and status, Images and 9 more. We haven't run Harmonic through [our company discovery API benchmark](https://datacircle.dev/best-company-discovery-api.txt) yet. Harmonic gives this plan's price on request. We rank 752 plans for company discovery APIs by price. Half the plans cost $1.188 per 1,000 companies or less. [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: as little as $0.0000015. StackScan's $189 monthly plan covers up to 259,200 pages a month at no extra cost. Each page holds 500,000 companies. [PeopleSearch.im's $5 pack](https://datacircle.dev/company-discovery-apis/peoplesearch-im/5-pack/llms.txt) covers any number of companies. PeopleSearch.im's $5 pack 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/harmonic/contact-us - [Company discovery API: 60+ providers compared](https://datacircle.dev/best-company-discovery-api.txt) - Get it: https://harmonic.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing - Request: `POST https://api.harmonic.ai/search/companies_by_keywords` - API key: with the plan, on https://harmonic.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing - Its API docs: https://console.harmonic.ai/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing - Sold by: Harmonic (https://harmonic.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing) - Checked: 2026-11-04 ## In the answer - Completeness: 0% ## Price - Billing: contact ## Aggregators - Aggregators: none ## Charges - Also pays for: nothing else ## In their words - Their pitch: Find companies with natural language queries, such as fintech companies in New York that raised Series B funding in the last 6 months. ## Data - Keep data: no limit - Use data: only for your internal business purposes, such as investment, research, recruiting, sourcing, corporate development and business development, you may not publish, display, license, sell or provide Company Data to a third party without Harmonic's prior written approval ## Speed - Answer: in the call ## The call - You send: keywords - Method: POST - Path: /search/companies_by_keywords ## About the plan - Plan: API access - Who can get it: anyone ## The 2 fields the plan's answer can hold entity URN, ID ## Harmonic's plans (1) - [Harmonic, contact us](https://datacircle.dev/company-discovery-apis/harmonic/contact-us/llms.txt): 0% complete ## Harmonic's calls for this API (1) - `POST /search/companies_by_keywords`: [Harmonic, contact us](https://datacircle.dev/company-discovery-apis/harmonic/contact-us/llms.txt) ## Harmonic's APIs (4) - [Harmonic: company discovery API pricing, 1 plan](https://datacircle.dev/company-discovery-apis/harmonic/contact-us/llms.txt) - [Harmonic: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/harmonic/contact-us/llms.txt) - [Harmonic: similar companies API pricing, 1 plan](https://datacircle.dev/similar-company-apis/harmonic/contact-us/llms.txt) - [Harmonic: people enrichment API pricing, 1 plan](https://datacircle.dev/person-enrichment-apis/harmonic/contact-us/llms.txt) ## Harmonic: company discovery API alternatives - [Hunter, contact us, Enterprise, GET /discover/people](https://datacircle.dev/company-discovery-apis/hunter/contact-us-enterprise-get-discover-people/llms.txt): 0% complete, stored - [NinjaPear, contact us](https://datacircle.dev/company-discovery-apis/ninjapear/contact-us/llms.txt): 0% complete - [The Swarm, contact us, Enterprise, POST /v3/companies/search](https://datacircle.dev/company-discovery-apis/the-swarm/contact-us-enterprise-post-v3-companies-search/llms.txt): 0% complete, stored - [Jobven, contact us, Custom, GET /v1/public/companies](https://datacircle.dev/company-discovery-apis/jobven/contact-us/llms.txt): 0% complete, stored - [Biointelli, contact us](https://datacircle.dev/company-discovery-apis/biointelli/contact-us/llms.txt): 0% 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 2026-11-04. - https://api.harmonic.ai/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing - https://harmonic.ai/legal/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing - https://harmonic.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing - https://support.harmonic.ai/en/articles/12785899-harmonic-mcp-server-getting-started-guide?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing - https://support.harmonic.ai/en/collections/3238662-api-bulk-data-integrations?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing