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Company Lists

Explore Company Lists to organize, track company reveals, filter your searches, and exclude duplicates for efficient lead research workflows.

Company Lists let you organize companies into groups for tracking, filtering, and exporting. You can access them from the Company Lists page.

Types of company lists

  • Companies Seen — An automatic, system-managed list that tracks every company you've ever revealed.
  • Custom lists — Lists you create manually to organize companies however you like. They can be created from scratch, by duplicating an existing list, renamed, and deleted.

Both types of lists can be used as search filters (e.g., "Company List is in / is not in [list name]"). This is useful for excluding previously revealed companies from new searches.

How is this guide?

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Technographic enrichment

Complete guide to company technographic enrichment on TheirStack. From manual bulk uploads to automated API integration for CRM and sales workflows.

Companies Seen

Discover how the Companies Seen list tracks all revealed companies permanently, how it differs from the 90-day reveal filter, and why counts vary.

On this page

Types of company lists