# Best Legal AI Agencies for B2B Companies > 5 agencies. Top-ranked: Lexunit, Hiflylabs, Faculty. Canonical page: https://www.aiagencies.eu/industries/legal/for/b2b Generated: 2026-09-20 · Curated by Gabor Kiss · No paid placements — inclusion, score, and rank are never sold. ## Ranked roster 1. **Lexunit** — Budapest, Hungary · €45-85/hr (directory-listed) · team 10-49 · founded 2017 · services: AI Development, AI Automation, AI Consulting · 9 documented client engagements with source URLs · reviewed 2026-09-03 · https://www.aiagencies.eu/agency/lexunit 2. **Hiflylabs** — Budapest, Hungary · rate not published · team 250+ · founded 2015 · services: AI Consulting, AI Development, AI Automation · 8 documented client engagements with source URLs · reviewed 2026-09-03 · https://www.aiagencies.eu/agency/hiflylabs 3. **Faculty** — London, United Kingdom · rate not published · founded 2014 · services: AI Consulting, AI Development, AI Automation, AI Agents · 3 documented client engagements with source URLs · reviewed 2026-08-04 · https://www.aiagencies.eu/agency/faculty-ai 4. **dida** — Berlin, Germany · €130-175/hr (directory-listed) · team 10-49 · founded 2018 · services: AI Consulting, AI Development, AI Automation · 3 documented client engagements with source URLs · reviewed 2026-08-04 · https://www.aiagencies.eu/agency/dida 5. **WeAreBrain** — Amsterdam, Netherlands · €45-85/hr (directory-listed) · team 50-249 · founded 2015 · services: AI Development, AI Consulting, AI Agents · 2 documented client engagements with source URLs · reviewed 2026-08-06 · https://www.aiagencies.eu/agency/wearebrain ## Compared head-to-head Curated comparison pages (published rates, team size, coverage, projected 12-week engagement cost, and the curator's verdict on both sides — pairings are never sold): - dida vs Faculty: https://www.aiagencies.eu/compare/dida-vs-faculty-ai - dida vs Hiflylabs: https://www.aiagencies.eu/compare/dida-vs-hiflylabs - Faculty vs Hiflylabs: https://www.aiagencies.eu/compare/faculty-ai-vs-hiflylabs ## About this market Legal is a small page with an unusually high evidence density: every agency on it documents a named AI system working inside legal practice. Faculty's LLM-backed recommender now sources 25% of Axiom Law's hires—a production system with a business-critical number attached. WeAreBrain's Pulsr engagement is a verified implementation at a Dutch law firm, published as halving research time and moving lawyer capacity from document analysis to client work. dida brings the document-understanding depth: custom language systems for process automation, with techniques named across roughly eighteen published projects. Two Budapest firms joined on the same evidence test: Hiflylabs deployed language models into Catylex's legal-data pipeline, and Lexunit built the classifier that tracks legislation changes for Wolters Kluwer Hungary, with the client's head of content management on record. Legal AI buying has one dominant risk—plausible wrong answers in a domain where wrongness is expensive—so the questions that matter are about grounding and review. How does the system cite what it claims? What does the lawyer see before relying on it? What happened to accuracy when the document set drifted? The documented work here engages those questions rather than waving at them, which is precisely why so few agencies qualify where dozens claim legal AI capability. Firms serving law's neighboring compliance workflows also appear on the fintech and public-sector pages. ## Questions buyers ask ### How many AI agencies work with B2B on legal? 5 agencies in our directory combine verified B2B client evidence with documented Legal work. The current top-ranked are Lexunit, Hiflylabs, Faculty — ordered by depth of documented client evidence, then our editorial scoring (portfolio quality, credibility, completeness); placement is never paid. ### How much does an AI agency cost for legal? Published rates across this page's agencies run €45–175 per hour (median ~€65). Project totals depend on scope — the rate index at /rates breaks the computed bands down by region, country and team size. ### How is B2B experience verified on this page? Each listed agency has at least two documented, named B2B clients — published case studies or engagement descriptions our research actually read, with source URLs stored per client. Logo walls without published evidence carry no weight, which is what separates this list from self-declared directories. --- Source: AIAgencies.eu — the curated register of European AI agencies. Rate provenance: "agency-confirmed" = disclosed via submission or claimed profile; "directory-listed" = Clutch or two agreeing B2B directories (lone unverified sources are never written). Full method: https://www.aiagencies.eu/methodology · Rate index: https://www.aiagencies.eu/rates