# 18 Harmonic alternatives in 2026

Last updated: November 9, 2026.

The best alternatives to Harmonic for company discovery APIs: GetProspect, Hunter and PeopleSearch.im, by our benchmark. Harmonic's website is harmonic.ai.

## Company discovery API alternatives

[GetProspect](https://datacircle.dev/company-discovery-apis/getprospect/free#49-monthly), [Hunter](https://datacircle.dev/company-discovery-apis/hunter/free-post-discover#49-monthly-starter-post-discover) and [PeopleSearch.im](https://datacircle.dev/company-discovery-apis/peoplesearch-im/free#5-pack) are the best [company discovery API providers](https://datacircle.dev/best-company-discovery-api) in the Datacircle benchmark.

On our [Harmonic plan pages](https://datacircle.dev/company-discovery-apis/harmonic/contact-us), we compare each Harmonic plan with other providers' plans. We list other providers' plans below.

- [Dun & Bradstreet, contact us](https://datacircle.dev/company-discovery-apis/dun-bradstreet/contact-us): no price per 1,000 companies
- [Hunter, contact us, Enterprise, GET /discover/people](https://datacircle.dev/company-discovery-apis/hunter/free-get-discover-people#contact-us-enterprise-get-discover-people): no price per 1,000 companies
- [Jobven, contact us, Custom, GET /v1/public/companies](https://datacircle.dev/company-discovery-apis/jobven/free#contact-us): no price per 1,000 companies
- [NinjaPear, contact us](https://datacircle.dev/company-discovery-apis/ninjapear/free#contact-us): no price per 1,000 companies
- [The Swarm, contact us, Enterprise, POST /v3/companies/search](https://datacircle.dev/company-discovery-apis/the-swarm/free-14-day-free-trial-post-v3-companies-search#contact-us-enterprise-post-v3-companies-search): no price per 1,000 companies

Compare every company discovery API plan: [Company discovery API pricing: free and cheapest plans compared](https://datacircle.dev/company-discovery-api-pricing)

## Company enrichment API alternatives

[ROIC.ai](https://datacircle.dev/company-enrichment-apis/roic-ai/free#89-monthly), [Intrinio](https://datacircle.dev/company-enrichment-apis/intrinio/150-monthly) and [GLEIF](https://datacircle.dev/company-enrichment-apis/gleif/free) are the best [company enrichment API providers](https://datacircle.dev/best-company-enrichment-api) in the Datacircle benchmark for companies in any country.

On our [Harmonic plan pages](https://datacircle.dev/company-enrichment-apis/harmonic/contact-us), we compare each Harmonic plan with other providers' plans. We list other providers' plans below.

- [AgentData, contact us](https://datacircle.dev/company-enrichment-apis/agentdata/free-no-account#contact-us): no price per 1,000 companies
- [Forestreet, contact us](https://datacircle.dev/company-enrichment-apis/forestreet/contact-us): no price per 1,000 companies
- [ROIC.ai, contact us](https://datacircle.dev/company-enrichment-apis/roic-ai/free#contact-us): no price per 1,000 companies
- [Skrapp, contact us, Custom plan, GET /api/v3/companies/snapshot](https://datacircle.dev/company-enrichment-apis/skrapp/349-monthly-enterprise-50k-get-api-v3-companies-snapshot#contact-us-custom-plan-get-api-v3-companies-snapshot): no price per 1,000 companies
- [TrustyData, contact us](https://datacircle.dev/company-enrichment-apis/trustydata/free#contact-us): no price per 1,000 companies

Compare every company enrichment API plan: [Company enrichment API pricing: free and cheapest plans compared](https://datacircle.dev/company-enrichment-api-pricing)

## Similar companies API alternatives

[ScrapeAtlas](https://datacircle.dev/similar-company-apis/scrapeatlas/free#19-pack), [LeadMagic](https://datacircle.dev/similar-company-apis/leadmagic/99-monthly-essential-post-v3-companies-lookalike#249-monthly-growth-post-v3-companies-lookalike) and [Tomba](https://datacircle.dev/similar-company-apis/tomba/free#449-monthly) are the best [similar companies API providers](https://datacircle.dev/best-similar-companies-api) in the Datacircle benchmark.

On our [Harmonic plan pages](https://datacircle.dev/similar-company-apis/harmonic/contact-us), we compare each Harmonic plan with other providers' plans. We list other providers' plans below.

- [CompanyPulse, contact us](https://datacircle.dev/similar-company-apis/companypulse/free#contact-us): no price per 1,000 companies
- [Firmenakte, contact us](https://datacircle.dev/similar-company-apis/firmenakte/free#contact-us): no price per 1,000 companies
- [OpenMercantil, contact us](https://datacircle.dev/similar-company-apis/openmercantil/free#contact-us): no price per 1,000 companies
- [Scrappa, contact us](https://datacircle.dev/similar-company-apis/scrappa/free#contact-us): no price per 1,000 companies

Compare every similar companies API plan: [Similar companies API pricing: free and cheapest plans compared](https://datacircle.dev/similar-companies-api-pricing)

## People enrichment API alternatives

[LeadMCP](https://datacircle.dev/person-enrichment-apis/leadmcp/free#49-monthly), [GetProspect](https://datacircle.dev/person-enrichment-apis/getprospect/free-post-v2-people-enrich#399-monthly-growth-50k-post-v2-people-enrich) and [Bytemine](https://datacircle.dev/person-enrichment-apis/bytemine/free#top-up-from-0-50) are the best [people enrichment API providers](https://datacircle.dev/best-people-enrichment-api) in the Datacircle benchmark.

On our [Harmonic plan pages](https://datacircle.dev/person-enrichment-apis/harmonic/contact-us), we compare each Harmonic plan with other providers' plans. We list other providers' plans below.

- [Context.dev, contact us](https://datacircle.dev/person-enrichment-apis/context-dev/free#contact-us): no price per 1,000 people
- [Datagalactica, contact us, Volume and custom terms, GET /person/{id}](https://datacircle.dev/person-enrichment-apis/datagalactica/free-start-get-person-id#contact-us-volume-and-custom-terms-get-person-id): no price per 1,000 people
- [Lightcast, contact us, Worker Profiles (with contact information), POST /bulk-match](https://datacircle.dev/person-enrichment-apis/lightcast/contact-us-worker-profiles-with-contact-information-post-bulk-match): no price per 1,000 people
- [Manifold, contact us](https://datacircle.dev/person-enrichment-apis/manifold/free#contact-us): no price per 1,000 people

Compare every people enrichment API plan: [People enrichment API pricing: free and cheapest plans compared](https://datacircle.dev/people-enrichment-api-pricing)

## See also

- [Dun & Bradstreet alternatives](https://datacircle.dev/dun-bradstreet-alternatives)
- [Hunter alternatives](https://datacircle.dev/hunter-alternatives)
- [Jobven alternatives](https://datacircle.dev/jobven-alternatives)
- [NinjaPear alternatives](https://datacircle.dev/ninjapear-alternatives)
- [The Swarm alternatives](https://datacircle.dev/the-swarm-alternatives)
- [AgentData alternatives](https://datacircle.dev/agentdata-alternatives)
- [Forestreet alternatives](https://datacircle.dev/forestreet-alternatives)
- [ROIC.ai alternatives](https://datacircle.dev/roic-ai-alternatives)