To summarise and update, the titles since (and including) 2010 are:
Daniel Fernandez (IM, 2010)
Jonathan Hawkins (IM, 2010)
Yang-Fan Zhou (IM, 2011)
Thomas Hinks-Edwards (IM, 2011)
Alex Astaneh Lopez (IM, 2011)
Ameet Ghasi (IM, 2012)
Katarzyna Toma (WGM, 2012)
Sabrina Chevannes (WIM, 2013)
David Eggleston (IM, 2013)
James Adair (IM, 2014)
Jonathan Hawkins (GM, 2014)
Peter Roberson (IM, 2014)
Alan Merry (IM, 2016)
Daniel Fernandez (GM, 2017)
Ravi Haria (IM, 2107)
John Pigott (IM, 2017)
Andrew Horton (IM, 2018)
Ezra Kirk (IM, 2018)
Joseph McPhillips (IM, 2018)
David Fitzsimons (IM, 2018)
Brandon Clarke (IM, 2019)
James Jackson (IM, 2019)
Adam Taylor (IM, 2019)
Matthew Wadsworth (IM, 2019)
Trisha Kanyamarala (WIM, 2020)
Ravi Haria (GM, 2021)
Marcus Harvey (IM, 2021)
Conor E. Murphy (IM, 2021)
FIDE federation codes not included yet (or fully checked). With thanks to those who posted in this thread, and to John Upham for the list he maintains here:
https://britishchessnews.com/british-fi ... e-holders/
EDIT: Two missing entries added.