The Unlikely Legalfly Success Story
Over 100 investors showed up unannounced at an office in Ghent, Belgium. They weren’t invited. They just heard rumors
Over 100 investors showed up unannounced at an office in Ghent, Belgium. They weren’t invited. They just heard rumors about a legal AI company raising a Series A and decided to show up hoping to get in. The founders were four guys who spent years building Tinder. None of them had ever practiced law, worked at a law firm, or taken a legal technology class.
Eight months earlier, Legalfly had raised €2 million in seed funding. Now, in July 2024, Notion Capital was leading a €15 million Series A. Twelve months from launch to €17 million raised. The product worked. Slaughter & May, one of the UK’s most prestigious law firms, was using it. So was Allianz. Clients reported 60% reductions in contract review time.
The people best positioned to disrupt the legal industry turned out to be the ones who knew nothing about it.
Why Tinder Prepared Them for Legal AI
Ruben Miessen, Kasper Verbeeck, Dennis Montégnies, and Gregory Vekemans met at Match Group working on Tinder and other dating products. They built AI features that helped millions of people find matches. When they left to start Legalfly, one founder joked they went “from the sexiest industry in the world to the least sexy.”
The skills transferred better than anyone expected. Dating apps and legal contracts both involve processing massive amounts of documents that need analysis and matching. Both require airtight security since breaches destroy trust instantly. Both serve users who want results immediately without learning complicated systems.
The difference is pricing power. Legal professionals will pay significant money for software that saves time. The global legal services market is worth €884 billion. Law firms and corporate legal departments desperately need tools that reduce manual labor eating up billable hours. AI promised this, but most legal AI companies were built by lawyers or legal tech veterans locked into traditional thinking about how legal work gets done.
The Tinder team brought product expertise from consumer tech. They didn’t know how legal work “should” be done. They knew how to build software that actually worked. That ignorance became an advantage.
The Security Problem Everyone Else Ignored
Most legal AI tools send documents to external large language models for processing. Firms upload contracts, the documents travel to third-party servers, and models the firm doesn’t control process everything. For corporate legal departments handling confidential information, this setup is unacceptable regardless of AI performance.
Legalfly solved this through on-premise anonymization. A fine-tuned model sits within the client’s infrastructure and strips out sensitive data before anything reaches external LLMs. Client names, financial figures, trade secrets, and identifying information get removed. Only anonymized content goes to language models. Results return and get reidentified within the secure environment. Sensitive data never leaves the firm’s control.
The platform is also LLM-agnostic. Instead of locking clients into one language model, Legalfly routes each task to whichever model performs best for that specific use case. Contract review for French law might use one model. Drafting clauses for UK insurance policies might use another. The system optimizes for accuracy and speed rather than vendor lock-in.
This architecture wasn’t born from legal industry experience. It came from product people who understood that enterprise customers care more about security and results than which specific AI model runs underneath. The Tinder team had built systems processing millions of user actions daily while protecting privacy. They applied that thinking to legal work.
Major clients noticed immediately. Within months of launching, Legalfly signed partnerships with Slaughter & May and Allianz. Dozens of European law firms followed. The product delivered what legal tech veterans had struggled to build for years.
Eight Months From Seed to Series A
Legalfly raised €2 million in seed funding in November 2023. redalpine led the round with participation from Mehdi Ghissassi, Director of Product at Google DeepMind. For a new legal tech startup with zero track record, solid validation.
Eight months later, Notion Capital led a €15 million Series A with redalpine and Fortino Capital participating. Going from nothing to €17 million total raised within 12 months of launching is rare, especially in legal tech where sales cycles run long and adoption moves slowly.
Jos White, General Partner at Notion Capital, explained the investment: “The legal industry is a perfect fit for AI. We have been looking at making an investment in the market for sometime and in Legalfly we are very confident that they will be one of the enduring success stories. The super talented team have a clear vision for the future and have already built a market leading product. The true test of this is the way it’s being received in the market which has been nothing short of amazing after only a year.”
Sebastian Becker at redalpine, who led seed and doubled down for Series A, pointed to product differentiation: “LegalFly’s rapid ascent showcases their exceptional vision and execution, solidifying their product leadership in the Legal AI space. Their unique focus on enterprise-grade security and an LLM-agnostic platform not only meets a critical industry need but also drives their continuous expansion and innovation.”
Between seed and Series A came the moment over 100 investors showed up unannounced in Ghent. They had heard about the company’s momentum and wanted in. This doesn’t happen to normal B2B SaaS startups. It happens when investors believe they’re seeing something special early.

Why Lawyers Make Terrible Legal Tech
The legal industry moves slowly. Firms are risk-averse because mistakes cost clients millions and destroy reputations. Partners who control strategy often trained decades ago when technology meant email and word processors. Suggesting radical workflow changes faces institutional resistance.
This conservatism explains why legal tech innovation has historically come from within the industry. Lawyers and legal operations professionals build tools because they understand the problems. Understanding problems doesn’t guarantee building great products. Many legal tech companies create software that addresses real pain points but feels clunky, looks dated, and requires extensive training.
Legalfly’s founders brought zero legal baggage. They didn’t know which features lawyers expected or which workflows were standard. They built software that made complex tasks simple. The interface looks modern because they designed it using principles from consumer products. The AI integration feels seamless because they’re product experts who’ve shipped AI features at scale.
CEO Ruben Miessen explained: “They bring a fresh perspective to the legal AI landscape, rethinking process automation and optimization from the ground up. Instead of relying on traditional methods, they focus on developing the most effective solutions for today’s legal professionals, aiming to create a seamless digital toolkit that enhances productivity and streamlines daily operations.”
Younger lawyers expect consumer-grade design in professional tools. They’ve used smartphones their entire adult lives. They expect software to be fast, beautiful, and obvious. Legalfly delivers that experience while solving genuinely hard technical problems around security and accuracy.
Scaling Without Breaking
The €15 million Series A funds expansion across Europe and eventually into the United States, UK, France, Netherlands, Belgium, and UAE. The company currently supports five jurisdictions with plans to add more. Each new jurisdiction requires adapting the AI to local legal systems, regulations, and language nuances.
Legalfly plans to triple its team by end of 2024 and accelerate feature development. Growth at this pace creates challenges. Maintaining product quality while scaling fast and expanding into new markets tests even experienced teams.
The competitive landscape is intense. Multiple well-funded companies are racing to dominate legal AI, including Leya in Stockholm, Harvey which raised massive rounds from investors like OpenAI, and established players like LexisNexis acquiring startups.
Legalfly’s advantage is momentum combined with product differentiation. The security architecture and LLM-agnostic approach matter to enterprise buyers. Law firms and corporate legal departments can’t risk data breaches or vendor lock-in. Legalfly addresses both concerns while delivering measurable time savings.
Twelve months from launch to €17 million raised is impressive. Whether momentum continues depends on execution over the next 12 to 24 months. Can they scale sales across Europe? Will U.S. expansion work? Does product quality hold as the team triples?
The four founders who went from Tinder to legal AI bet that product expertise matters more than industry experience. Dozens of law firms and major enterprises agree. And over 100 investors who showed up unannounced clearly believe the story is just beginning.



