
Deep Sync is the industry leader in deterministic identity and AI-powered data solutions. Leveraging our 35-year foundation of compiling direct mail-grade datasets, Deep Sync develops data-first technologies that power marketing, measurement, AI, and business intelligence for agencies and brands with our fully deterministic identity graph, privacy-first audiences, comprehensive data solutions, and integrations with leading platforms and cloud providers.

Deep Sync is the industry leader in deterministic identity and AI-powered data solutions. Leveraging our 35-year foundation of compiling direct mail-grade datasets, Deep Sync develops data-first technologies that power marketing, measurement, AI, and business intelligence for agencies and brands with our fully deterministic identity graph, privacy-first audiences, comprehensive data solutions, and integrations with leading platforms and cloud providers.
What they do: Deterministic identity graph and AI-powered data solutions for marketers and agencies
Scale: Claims ~260M+ U.S. consumers in identity graph (96–97% coverage)
History: Rebranded in 2022, consolidating several legacy direct-mail data brands
Team size: Approximately 70 employees
Funding: Seed round announced Jan 1, 2024; investors listed include Dominor Investment and 100Unicorns
Marketing data, identity resolution, first‑party data hygiene and audience activation
Marketing Services
Investors listed: Dominor Investment and 100Unicorns (per Crunchbase)
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