# 20 alternatives to 6sense in 2026

Last updated: November 7, 2026.

Other providers sell IP company lookup APIs like 6sense's, among them Elioplus, GreyNoise and KickFire.

## IP company lookup API alternatives

On our [6sense plan pages](https://datacircle.dev/ip-company-lookup-apis/6sense/contact-us-6sense-intelligence), we compare each 6sense plan with other providers' plans. We list other providers' plans below.

- [Elioplus, contact us](https://datacircle.dev/ip-company-lookup-apis/elioplus/free#contact-us): no price per 1,000 IP addresses
- [GreyNoise, contact us, Advanced, POST /v3/ip](https://datacircle.dev/ip-company-lookup-apis/greynoise/free#contact-us-advanced-post-v3-ip): no price per 1,000 IP addresses
- [KickFire, contact us](https://datacircle.dev/ip-company-lookup-apis/kickfire/contact-us): no price per 1,000 IP addresses
- [eXTReMe IP Lookup, contact us, Pro Package](https://datacircle.dev/ip-company-lookup-apis/extreme-ip-lookup/contact-us-pro-package): no price per 1,000 IP addresses
- [ipXapi, contact us, Enterprise, POST /api/batch-ip](https://datacircle.dev/ip-company-lookup-apis/ipxapi/free-trial-post-api-batch-ip#contact-us-enterprise-post-api-batch-ip): no price per 1,000 IP addresses

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

## People search API alternatives

On our [6sense plan pages](https://datacircle.dev/people-search-apis/6sense/contact-us-6sense-intelligence), we compare each 6sense plan with other providers' plans. We list other providers' plans below.

- [Hunter, contact us, Enterprise, GET /domain-search](https://datacircle.dev/people-search-apis/hunter/free-get-domain-search#contact-us-enterprise-get-domain-search): no price per 1,000 people
- [LeadMagic, contact us, Enterprise Security, POST /v1/people/role-finder](https://datacircle.dev/people-search-apis/leadmagic/99-monthly#contact-us): no price per 1,000 people
- [Snov.io, contact us, Custom Ultra, POST /v2/domain-search/prospects/start](https://datacircle.dev/people-search-apis/snov-io/39-monthly-starter-post-v2-domain-search-prospects-start#contact-us-custom-ultra-post-v2-domain-search-prospects-start): no price per 1,000 people
- [The Swarm, contact us, Enterprise, POST /v3/relationships](https://datacircle.dev/people-search-apis/the-swarm/free#contact-us): no price per 1,000 people

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

## People enrichment API alternatives

On our [6sense plan pages](https://datacircle.dev/person-enrichment-apis/6sense/contact-us-6sense-intelligence), we compare each 6sense plan with other providers' plans. We list other providers' plans below.

- [Apollo, contact us](https://datacircle.dev/person-enrichment-apis/apollo/free#contact-us): no price per 1,000 people
- [Clair, contact us](https://datacircle.dev/person-enrichment-apis/clair/free#contact-us): no price per 1,000 people
- [CompanyEnrich, contact us, Annual plans, GET /people, Get by ID](https://datacircle.dev/person-enrichment-apis/companyenrich/free#contact-us): no price per 1,000 people
- [Factori, contact us](https://datacircle.dev/person-enrichment-apis/factori/free#contact-us): no price per 1,000 people
- [Happenstance, top-up](https://datacircle.dev/person-enrichment-apis/happenstance/top-up): 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)

## Company enrichment API alternatives

On our [6sense plan pages](https://datacircle.dev/company-enrichment-apis/6sense/contact-us-6sense-intelligence-post-v1-enrichment-company), we compare each 6sense plan with other providers' plans. We list other providers' plans below.

- [CNPJ.ws, contact us, Advanced, GET /cnpj/{cnpj}](https://datacircle.dev/company-enrichment-apis/cnpj-ws/free#contact-us-advanced-get-cnpj-cnpj): no price per 1,000 companies
- [Extruct, contact us](https://datacircle.dev/company-enrichment-apis/extruct/free#contact-us): no price per 1,000 companies
- [Firmbase, contact us, Enterprise, POST /v1/companies/batch](https://datacircle.dev/company-enrichment-apis/firmbase/free-no-subscription-post-v1-companies-batch#contact-us-enterprise-post-v1-companies-batch): no price per 1,000 companies
- [ReceitaWS, contact us](https://datacircle.dev/company-enrichment-apis/receitaws/free-gratis-get-cnpj-cnpj-days-days#contact-us): no price per 1,000 companies
- [Thinknum, contact us](https://datacircle.dev/company-enrichment-apis/thinknum/contact-us): no price per 1,000 companies
- [USADATA, contact us](https://datacircle.dev/company-enrichment-apis/usadata/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)