The company Casia Legatech, founded in Seville in 2026 by Neuralia and Fusión Startups, has created the sole platform applying artificial intelligence to the strategy of appeals before the High Court. According to statements to El Conciso, jurist Marcos Peña, co-founder with a group of partners, the application involved judges, magistrates, mathematicians, philosophers, and technologists, combining legal knowledge and data engineering.
Marcos Peña, a Doctor of Administrative Law and professor at the University Loyola Andalucía, explains that the platform addresses the significant difficulty of reaching the Supreme Court, particularly in contentious-administrative jurisdiction. He notes that only a small fraction of submitted appeals are admitted for review, resulting in months of work and invested capital without the case being heard.
“"Casia tackles one of the oldest and most frustrating problems in Spanish advocacy: the enormous difficulty of reaching the Supreme Court."
The company, which already has secured investment commitments, is preparing for its first funding round, attracting interest from venture capital firms. Its growth potential is highlighted due to a broad market, a difficult-to-replicate product, and a team with insider knowledge of the problem. The objective is to scale this pioneering proposal and establish it as a national benchmark.
The platform employs artificial intelligence to analyze cases and assist lawyers in assessing the conditions required by the Supreme Court for admitting an appeal, known as 'interés casacional' (jurisdictional interest). Under legal supervision, Casia drafts the appeal, making a professional decision, previously based on intuition, now measurable. Peña emphasizes that the tool aims not to replace lawyers but to provide certainty and expedite analyses that previously took years.
“"What this tool does is put within the lawyer's reach, in a matter of minutes, the type of analysis that previously required years of practice."
Casia's specialization in contentious-administrative appeals before the Third Chamber of the Supreme Court distinguishes it from more generic legal AI tools. Currently, no other Spanish platform focuses on this specific area.
Due to positive reception among professionals and law firms, the team is working on expanding the tool to civil and labor appeals, with an update planned for late September. Recently, the appeal of cassation, a highly requested feature, was incorporated.
Casia has finalized a distribution agreement with Economist & Jurist and has been presented at events such as the Public Business Sales of Orange and the Seville Bar Association, attended by magistrates from the Superior Court of Justice of Andalusia. It will soon be presented at the IV National Meeting of Public Management in Fuengirola.
