UK startup Fyxer has raised a $30m Series B to expand to the US, as funding continues to pour into European startups developing tools around AI.
Fyxer, which is building an AI-powered executive assistant tool, announces the fresh funds just months on from a $10m Series A in March.
The Series B round was led by US-based UiPath- and Amazon-backer Madrona, with participation from Lakestar. Previous backers include Harry Stebbing’s 20VC and Salesforce founder Marc Benioff.
The startup says it will double the size of its team (currently 48) in the next six months, primarily through US-based hires.
Productivity wins
Fyxer has seen rapid revenue growth of its first product, an AI tool to filter and draft responses to emails.
In the past eight months, the startup says its annual recurring revenue (ARR) has increased from $1m to $17m, across more than 180k users. 90% of those continue to use the product three months later, it claims.
“Professionals around the world are moving beyond tools that merely help us work to agents that work alongside us, handling high-context workflows like email, scheduling and coordination,” said Karan Mehandru, managing director at Madrona in a statement.
Fyxer will come up against significant competition in the email organisation space. Big Tech players with mail services like Google, Microsoft and Apple have their own offerings which will become more sophisticated over time.
On the startup side, there’s also US-based Superhuman, which raised more than $100m before being acquired by Grammarly in July.
"The next phase of Fyxer will focus on accelerating product development, particularly on natural language chat capabilities," said CEO Richard Hollingsworth. "We know the email drafting function is something our users value most, so this will definitely be a big focus for our expanding team."
Recent months have seen deal-hungry investors scramble to funnel cash into revenue-generating AI companies building tools around LLMs provided by the likes of Anthropic and OpenAI.
European AI startups have picked up €6.3bn so far in 2025, way ahead of the €3.9bn raised across the whole of 2024, according to Sifted data.
In August, workflow automation startup N8n saw valuations being offered for its Series C skyrocket from $1.5bn at the start of the fundraise to just under $3bn, with around a dozen term sheets submitted, people familiar with the talks told Sifted.
Later that month, Swedish vibe-coding startup Lovable received funding offers valuing it at $4bn, weeks on from it raising $200m at a $1.8bn valuation, according to reports.
