Nikki Sinclaire has conceded that she will not be re-elected as MEP for the West Midlands.
Ms Sinclaire won as a UKIP candidate in 2009, but left the party a year later, and set up the "We Demand A Referendum Now Party" in 2012.
Full results are yet to be announced.
The East Midlands became UKIP's heartland last night, with a share of the vote higher than it achieved in any other region.
UKIP is celebrating after winning three seats in the EU Parliament, while Labour and the Tories have two each.