ETL for document-heavy data: parse, load to Postgres and run agentic workflows

Many enterprises—legal, insurance, banking, healthcare, and government—are document-first and still rely on brittle, manual pipelines to turn PDFs, emails, and scanned images into queryable data. Engineering teams typically spend weeks to months per new document source on ad hoc parsers, schema mapping, and QA, which leads to high maintenance costs and slow time-to-value for downstream analytics and automation. You could build an "ETL for document-heavy data" platform that combines LLM-driven semantic parsing, chunking and embeddings with deterministic extraction, then loads normalized records and vectors into Postgres (pgvector-enabled) and exposes agentic workflows to act on the data store (automated reconciliations, filings, or ticket updates). The product would include connectors for common repositories, prebuilt domain schemas and workflows, human-in-the-loop validation UIs, observability for provenance and data quality, and a developer API that generates safe SQL/actions for agents. This market is attractive now because advances in LLMs, vectorization, and agent orchestration make semantic ETL and closed-loop workflows technically viable, while the composable data stack (managed Postgres, cheap connectors, and vector tooling) reduces integration friction; the combined addressable market is roughly $18.0B (300,000 organizations × $60K ACV). Competitive intensity is medium, with incumbents focused on structured ETL and niche startups in embedding/QA; your strengths would be a Postgres-first architecture, enterprise governance, and turnkey workflows that shorten onboarding from months to days. Key challenges are controlling model inference costs, demonstrating consistent ROI to conservative buyers, and differentiating from both ETL incumbents and vector/agent startups—pilot deployments with 10–25 target customers in verticals with clear KPIs would validate product-market fit.