For GTM and sales teams building account lists, TheirStack is a technographic data provider that mines company job postings to surface tech stacks and hiring-intent signals other data sources miss.
Presence & Market Position
#38 of 124
GTM Developer Tools
▼ 26 60-day move
Measures earned, engagement-weighted share of voice across the GTM voices panel. Methodology →
TheirStack occupies the company-data layer for GTM teams that use hiring activity to identify technology usage and buying needs. Practitioner conversation places it inside working prospecting systems, usually alongside enrichment, research, and outreach tools. The recurring uses are hiring-triggered outbound, technology-based account selection, and signal tracking. It also appears in agent-driven account-list workflows where technology data helps qualify and tier companies before CRM entry. Its presence is concentrated around builders and agencies assembling these systems, with discussion focused on the data it contributes to a broader workflow.
MillionVerifier
Icypeas
BlitzAPI
BuiltWith
PredictLeadsClay, Zapier, monday.com, JetBrains, Redis, New Relic, Grafana Labs, Confluent, Flexport, Qonto
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Business Profile
TheirStack began in 2021 around the idea that a job opening reveals a company's operational needs. The independent business remains a small engineering team based in A Coruña, Spain, with five employees in the current record. It serves both sales and marketing teams building prospect lists and software companies embedding job and technology data. Its recent publishing emphasizes dataset evaluation and practical account discovery, consistent with a business built around collecting public hiring information and making it usable through structured searches.
Agent Readiness
Measures how easily your agents can build on it — API, MCP, CLI, SDK, docs depth. Methodology →
TheirStack makes its job and company intelligence available through an API and a published MCP server. Agents can search jobs and companies, retrieve technology usage, and inspect buying-intent topics derived from hiring. The documented MCP tools also cover company lists, saved searches, and webhooks, extending access from individual lookups into maintained prospecting workflows.
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