More than 60 people from the two groups marched together during Saturday’s parade and joined an estimated 300,000 who took part in the weekend’s celebrations.
Emily Foyle, co-representative of LGBT+ Staff Network, said: “Marching in Pride was such a rewarding experience, there was such a great atmosphere and we all had a brilliant time. It was wonderful to see the reaction we received when current students, graduates and members of staff spotted us from the sides – we had lots of cheers and high fives!
“We were featured live on BBC Sussex radio and interviewed for a BBC documentary, as well as having loads of photos taken by the many photographers there.