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    Tool comparison · Head to headUpdated 9/4/2026

    The Companies API vs Warmer

    A factual comparison of features, pricing, and capabilities.

    01The contenders
    Tool A

    The Companies API

    The Companies API is a company enrichment API that turns a domain name into a structured company profile with firmographics such as industry, employee count, founding year and revenue across 50 million companies. Plans are monthly credit allowances with a request-rate limit.

    Starting atCustom0
    Tool B

    Warmer

    Warmer is an AI-powered B2B sales enrichment platform that takes uploaded lead lists (CSV or API), enriches them and generates personalised outreach copy from LinkedIn and web research, priced by monthly credits with a free trial.

    Starting at$79/month
    02Line by line

    Pricing comparison.

    Monthly rates shown. Annual billing may offer discounts. Visit official sites for current pricing.

    03Capabilities

    Feature comparison.

    FeatureThe Companies APIWarmer
    Domain to company profile enrichment
    Access to all 50M companies
    Firmographics: industry, employee count, founding year, revenue
    Company lists
    Additional credits at a per-1,000 rate
    Rate-limited API by plan
    CSV upload and processing
    API access
    Social enrichment API
    AI-personalised outreach copy
    Email validation credits
    Credit-based pricing with no long-term contracts
    Available
    Partial/Limited
    Not Available
    04Ecosystem

    Native integrations.

    The Companies API

    Warmer

    LinkedInZapierSalesforceHubSpot
    05Keep exploring

    Explore more.

    Best The Companies API alternativesBest Warmer alternatives
    Apollo.io vs The Companies APIThe Companies API vs ZoomInfoClay vs The Companies APIApollo.io vs WarmerWarmer vs ZoomInfoClay vs Warmer
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    Information gathered from official sources and may change. Pricing and features last verified 9/4/2026. Please visit the official websites for the most current information.