Opoku-Gyimah is a co-founder and executive director of UK Black Pride, which promotes unity among all Black people of African, Asian, Caribbean, Middle Eastern and Latin American as well as their friends and families, who identify as Lesbian, Gay, Bisexual or Transgender. She was appointed trustee of lesbian, gay, bisexual and transgender (LGBT) rights charity, Stonewall but resigned three years later when the charity announced it would partner with UK Black Pride. 