Oni Ojukwu Mantenso

I am a senior strategy and operations consultant with 20+ years of experience partnering with founders, CEOs, and leadership teams to design operating models, lead transformation, and translate strategy into execution. My work sits at the intersection of strategic planning, organizational design, and change management -- helping organizations move from complexity and misalignment to clarity, structure, and durable results.

I have led and delivered projects across public sector, professional services, education, nonprofit, and mission-driven environments, including regulated and multi-stakeholder contexts. Engagements often involve stabilizing operations, designing governance and decision frameworks, rebuilding or scaling programs, and leading cross-functional initiatives where ambiguity and accountability are high.

Clients value my ability to work at altitude while remaining hands-on: structuring problems, aligning stakeholders, and driving execution through clear programs, roles, and processes. I am particularly effective in situations requiring judgment, discretion, and steady leadership rather than heavy infrastructure.

My professional goal is to support organizations and leadership teams through moments of transition, growth, or reset, bringing rigor, clarity, and momentum to work that matters.