In April 2019, the Government Equalities Office became an integral part of the Cabinet Office. GEO staff are employees of the Cabinet Office, who are responsible for collecting workforce diversity and inclusion data. GEO does not have access to this data as the size of GEO means that individual members of staff could be identifiable. Prior to April 2019, GEO workforce diversity data will have been included in the data of the relevant parent department.
The Office for National Statistics publishes annual data on Civil Service employment in the UK, including ethnicity data by department: https://www.ons.gov.uk/employmentandlabourmarket/peopleinwork/publicsectorpersonnel/datasets/civilservicestatistics
In addition, data regarding numbers of Black, Asian and Minority Ethnic civil servants by grade is published at: https://www.ethnicity-facts-figures.service.gov.uk/workforce-and-business/workforce-diversity/civil-service-workforce/latest