US startups advance from Series A to B 21% faster than UK peers
- US median Series A to B time is 19 months
- UK median Series A to B time is 24 months
- Seed to Series A gap is 7 months longer in the UK
Across the 312 Series A to Series B round pairs Brouky tracks in the United States, startups take a median 19 months to secure their next funding round. In contrast, 104 equivalent pairs in the United Kingdom show a median duration of 24 months, meaning US startups move through this mid-stage funding transition 5 months faster.
This velocity gap extends to earlier rounds as well, though this may partly reflect expanding data coverage. For seed to Series A transitions, the US median time is 15 months, while UK startups take a median 22 months, a 7-month difference. The interquartile ranges also reveal a tighter timeline in the US, with the 25th percentile at 9 months versus 12 months in the UK for seed to Series A.
MEDIAN MONTHS BETWEEN FUNDING ROUNDS
Later-stage round velocity converges. For Series B to Series C and beyond, both countries show identical median times of 22 months. The 25th and 75th percentiles for this transition also align closely, indicating a similar pace for later-stage scaling capital.
The median time difference of 7 months between seed and Series A rounds underscores the notably faster early-stage funding pace in the US.
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