Optiak Announces €4M Pre-Seed to Build Enterprise AI Operating System

Spanish enterprise AI startup Optiak has secured a €4 million pre-seed funding round, equivalent to approximately $4.7 million, in what the company describes as one of the largest early-stage capital raises in Spain’s enterprise AI sector in 2026. The round was led by Market One Capital, Next Tier Ventures, EA Ventures, Plug and Play EMEA Fund, and Mission, with additional backing from angel investors connected to SpaceX, Amazon, Stripe, CrowdStrike, and Databricks.

Founded in 2025 and headquartered in the United States with operations in Spain, Optiak has developed a modular AI operating layer designed to give large enterprises centralised governance, security, and observability across both third-party and proprietary AI tools built on large language models.

Co-CEO and co-founder Daniel Arenas said the company’s mission was to move organisations beyond fragmented, isolated AI deployments toward intelligence genuinely embedded at the core of business operations. CTO and co-founder Borja Balle, who previously worked at Google DeepMind and Amazon, argued that real AI performance comes not from optimising individual models but from the architecture surrounding them.

The founding team also includes co-CEO Ignacio Gamoneda. Alongside the funding announcement, Optiak launched a Design Partner Program for enterprises seeking to co-develop large-scale AI use cases directly with the founding team.