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BPO Service Company

Grindstone

B2B lead generation, appointment setting and telemarketing service for sales teams in North America

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About Grindstone

Grindstone is a B2B sales support company that generates leads and books appointments for other businesses. It describes its telemarketing team as US-based and says it is not a call centre.

What Grindstone offers

  • B2B lead generation: targeted leads for a client's sales team, with follow-up to qualify them.
  • Appointment setting: meetings booked straight into a client's calendar.
  • Event promotion and registration: bringing attendees to webinars, virtual meetings or live events.
  • Database cleanup and updating: tidying contact lists.
  • List and database procurement: sourcing contact data for campaigns.

Customers and markets

Clients in technology, software, SaaS, finance, merchant services, insurance, healthcare, cyber security, marketing, consulting and hospitality. Campaigns cover North America and other English-speaking countries.

Key facts

  • Established: 2003
  • Reporting: an online system that gives clients round-the-clock access to campaign analytics
  • Agents: each dedicated to one client's programme

Profile written by TrustList from the business's own published information, Sep 2026.

Categories & features

Rankings

What the business tells TrustList

Founded
2003 (23 years) evidence sent

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