Nnenna Ilomechina is a Senior C-suite Advisor on digital and AI-driven transformation, helping organisations interpret the signals of change and harness technology, people, culture and business acumen to create lasting commercial and human resilience.

 

With over 25 years of experience, she brings a rare blend of strategic, operational and technological depth — honed through leadership roles at Sapient (now Publicis), AlixPartners and Accenture, where she built teams and led large-scale transformations for multinationals including HPE, NTT, VM/O2, Sabre and GateGourmet, as well as for the portfolios of private equity firms such as Silver Lake, Summit and TA Associates.

 

As Global COO of Dentsu International, she guided regional COOs across 70+ markets through integration and change, and most recently, as CEO of a private-equity-backed enterprise SaaS business, she led strategic renewal in an AI-disrupted market.

 

Named one of the UK’s Inspiring Fifty Women in Tech (2025), Nnenna is also a sought after speaker on driving transformation in the age of AI — where technological progress and humanity must coexist.