Verified document understanding providers

This directory catalogs document understanding providers with verified delivery in structured extraction from contracts, forms, and reports. Each listed vendor has shipped classification, routing, and OCR pipelines for regulated and high-volume document workflows, with evidence reviewed against Trustgent's plan-blind verification tiers. Coverage includes intelligent document processing providers building end-to-end pipelines (ingestion, layout parsing, entity extraction, human-in-the-loop review) as well as contract extraction AI providers focused on clause identification, obligation tracking, and downstream integration into contract lifecycle systems. Records reflect what teams have actually delivered, not marketing claims or paid placement. Ranked on: earned verification level, then record count, then recency. Plan tier is never a ranking input.