Since its launch in 2013, Nnamdi has been involved with the Freshfields Stephen Lawrence Scholarship Scheme which addresses under-representation of black men from low-income households in large commercial law firms. Initially a mentor to individual scholars as a trainee and associate solicitor, Nnamdi now acts as the group mentor for all successful scholars on the programme. Outside of the Freshfields Stephen Lawrence Scholarship Scheme, he regularly provides assistance to candidates from BAME backgrounds through informal meetings, reviewing applications or assisting with interview questions. Nnamdi participates in panel discussions targeted at BAME candidates and acts as a mentor to students on various BAME focused programmes (e.g., BSN, SEO London). He actively promotes, and uses his legal background to assist, various businesses focused on achieving positive change for the BAME community.