Startups
Mabyduck
London, United Kingdom
London-based AI evaluation company founded by Lucas Theis in 2024. Mabyduck provides a self-service platform for measuring human perceptions of AI-generated images, audio, video and interactive experiences. It supports configurable pairwise comparisons, standardized audio tests, surveys, rater screening, custom rubrics, leaderboards and API-driven evaluation workflows. Its public beta launched in November 2025. The company disclosed a pre-seed financing led by Zero Prime Ventures with participation from Berlin-based Magnetic Capital; the amount and closing date were undisclosed. Named supporters include AI researchers described collectively as angel investors and advisers, without individual investment terms.
Founded 2024
Team
Ivan GerovSoftware Engineer |
 Lucas TheisFounder and Director |
 Till AczélResearch Scientist |
 William BlackieStaff Engineer |
Zihao QiResearch Intern (published January 2026) |