Europe's most successful B2B technology scaleups are building strong businesses at home, but data released today shows many still lack the foundations to compete in the US.

The inaugural Scaling Stateside 50, developed by US Expansion Partners (USXP), assesses European scaleups across commercial strength and US market readiness.

The 50 companies average 86 out of 100 for commercial strength but just 17 out of 100 for US readiness, highlighting a substantial gap between domestic success and preparations for transatlantic expansion.