Deploy your own signal currency across addressable media.
Every third-party ID vendor sells the same data to your competitors. GrowthCode's Identity Rail gives DSPs and agencies a different path: mint a proprietary signal currency via direct, on-page script across 40,000+ publisher sites, route it through participating SSPs, and match it against your identity graph in a cleanroom. Your models run on your signals, not a shared dataset.

Your signal currency. Your competitive advantage.
Source-Side Signal Capture
Your proprietary ID is minted via direct on-page script at the moment of impression — before any server-side truncation. Maximum signal fidelity. No intermediary onboarding costs.
Cleanroom Signal Sync
Raw signals — HEMs, MAIDs, IP-derived identifiers — route to your chosen cleanroom. You run the join, update your spine, and activate it. No PII, no graph data, no proprietary model data leaves your environment.
Direct Data Delivery
Signal delivery via S3 or Snowflake into your own environment. Ingest your proprietary signals directly for custom modeling, attribution, and bidder optimization.
Signal Continuity
Recover addressability in Safari, Firefox, and mobile environments where cookie-based signals have degraded. Your signal currency travels where cookies don't.
Signal Quality for Automated Buying
Model-driven and AI-powered buying strategies optimize against the signals in the bidstream. A proprietary signal currency you own and update gives your campaigns a data advantage that off-the-shelf segments can't replicate.
Stop renting the same signals as your competitors. Own yours.
Identity Rail gives you a proprietary signal currency minted at the source, synced to your cleanroom, and activated across 40,000+ direct publisher sites. No third-party onboarding fees. No shared datasets. A data advantage that compounds.