$25M/year Glean for the EU

TL;DR: When ChatGPT went viral in 2022-2023, European enterprises couldn't legally use it, giving rise to Langdock (YC S23, Berlin) as a GDPR-compliant, model-agnostic enterprise AI workspace. Sacra estimates Langdock hit $25M ARR in March 2026, growing 925% year-over-year. For more, check out our full report and dataset on Langdock.

Key points on Langdock via Sacra AI:

As European enterprises turned off AI tools like ChatGPT over their lack of GDPR Data Processing Agreements, EU data residency, or audit controls, Langdock (founded 2023) launched as a walled-garden AI workspace that lets companies safely deploy LLM-powered agents and workflows on internal data, routing requests to any of 40+ underlying models (OpenAI, Anthropic, Google, Mistral, Meta) that IT has enabled while maintaining audit logs, control over what data can be queried, and contractual no-training guarantees. Langdock monetizes via seat-based SaaS pricing (€20–€25/user/month), tiered workflow automation fees (€449–€539/month for 40K runs, €999–€1,199/month for 100K runs), and a 10% markup on API usage for LLM calls, with custom enterprise contracts for 1,000+ seat deployments.
After launching their no-code automation platform Workflows (November 2025) and Agents (December 2025), Sacra estimates that Langdock hit $25M in annual recurring revenue (ARR) in March 2026, up 925% YoY, with ~6,000 customers and ~100,000 monthly active users on $3.5M raised ($3M seed, General Catalyst). Compare to enterprise AI competitor & category leader Glean at $208M ARR at the end of 2025, up 89% year-over-year, finance-specific vertical AI Hebbia at $13M ARR as of June 2024, up 160% YoY, and vertically integrated workflow-and-LLM player Writer at $47M ARR, up 200% YoY.
With its biggest competition coming from incumbents like Microsoft, whose Copilot is compliant within the Office 365 stack, and from model providers like OpenAI, whose ChatGPT Enterprise has closed the compliance gap, Langdock's counter-move is deepening its integrations with Slack, Airtable, Notion, and Linear to win with companies that don’t want to go all-in on a single vendor’s ecosystem. The upside case is Langdock becoming the Glean of the EU, evolving into a full internal tools platform where Workflows automation replaces separate SaaS purchases like Zapier, Retool, and vibe coding tools as enterprises build customer support triage, lead qualification, and approval workflows in Langdock.

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