Tool comparison · Head to headUpdated 9/4/2026

    BIGContacts vs TheirStack

    A factual comparison of features, pricing, and capabilities.

    01The contenders
    Tool A

    BIGContacts

    Contact management CRM for small businesses (a ProProfs product) with unlimited users, teams, lists and storage, tags and custom fields, forms and data capture, AI contact import, sales reports and automated reminders, priced per 1,000 contacts with a forever-free single-user plan.

    Starting atCustom0
    Tool B

    TheirStack

    Job posting and technographics database for sales teams. Finds companies by the technologies they use and the roles they are hiring for, and enriches a company list with technographics and buying intent.

    Starting atCustom0
    02Line by line

    Pricing comparison.

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

    03Capabilities

    Feature comparison.

    FeatureBIGContactsTheirStack
    Unlimited Users
    Unlimited Team and Groups
    Unlimited Lists
    Unlimited Storage
    Tags & Custom Fields
    Forms & Data Capture
    Contact Import & Summary
    Sales Reports
    Organize Contacts & Lists
    Automated Reminders & Alerts
    Job search
    Company search
    Company lookup
    Enrichment
    Exports
    Email alerts
    Webhooks
    MCP server
    Available
    Partial/Limited
    Not Available
    04Ecosystem

    Native integrations.

    BIGContacts

    SkypeQuickBooksOutlookZapierGoogle CalendarGoogle Workspace

    TheirStack

    ClayLinkedIn AudiencesMakeN8NZapier
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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.