UK100 Start-Ups: Fyxer AI
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This article is part of The UK100 Start-Ups, a special edition by Entrepreneur UK showcasing the most exciting startups redefining business in 2026. From climate and health to AI and creativity, these innovators are tackling big challenges—while racing to scale, secure funding, and attract top talent.
Fyxer AI is an email AI agent. In 2025, Fyxer raised $43m across 24 days, hit $25m ARR in 10 months, expanded into the US, and grew from 7 to 56 staff, all while empowering everyday professionals to unlock productivity with AI, rather than be bogged down by admin.

This article is part of The UK100 Start-Ups, a special edition by Entrepreneur UK showcasing the most exciting startups redefining business in 2026. From climate and health to AI and creativity, these innovators are tackling big challenges—while racing to scale, secure funding, and attract top talent.
Fyxer AI is an email AI agent. In 2025, Fyxer raised $43m across 24 days, hit $25m ARR in 10 months, expanded into the US, and grew from 7 to 56 staff, all while empowering everyday professionals to unlock productivity with AI, rather than be bogged down by admin.