Crowdcube leads the pack as the top investor in Sifted's 2025 UK & Ireland fastest-growing startups leaderboard, backing eight companies including Chip and Emma. This crowdfunding giant tops the rankings based on portfolio size and the strong revenue growth of its portfolio firms. Accel follows closely with stakes in seven high-growth startups like Fuse Energy and Lottie, demonstrating continued VC interest in the region's fintech and healthtech sectors.

The list, spanning London, Dublin, and beyond, highlights the competitive landscape where investors vie for stakes in AI, healthtech, and fintech innovators. Crowdcube's eight portfolio companies represent a significant commitment to the region's startup ecosystem. Accel's seven portfolio companies also show strong revenue growth, underscoring the sector's appeal. The full ranking details are available to Pro subscribers.