Hey!
I’m Mark Segelov
Executive Advisor · Leadership Partner ·
CxO Strategist & Risk Thinker
Helping leaders navigate complexity with clarity, empathy and unexpected perspective.
HOW I SUPPORT LEADERS
Executive Advisory & Leadership Partnership
I work with CEOs, founders and senior leaders as a trusted thinking partner, bringing perspective, clarity and grounded judgment. My advisory style draws on a concierge philosophy, anticipatory, personalised and quietly attentive to the nuances leaders face.
CxO Advisory, Board Insight & Transformation
I support organisations navigating change, scale or strategic realignment through advisory and fractional CxO engagement. This includes governance, operating models, culture and the human side of transformation, especially in moments where clarity matters most.
Risk, Resilience & Security Perspective
With over two decades working across complex, high-stakes environments, I bring a boardlevel view on risk, resilience and organisational security. This work is delivered through Saphisle, a Segelov advisory practice.
Communities & Thought Leadership
I create spaces where leaders challenge ideas and grow together. This includes The Ratcliffe Circle, Security in the City, and the Unexpected Perspectives podcast. I also share reflections through my LinkedIn newsletter on leadership, clarity and humancentred decision-making.
Behind the Brand
Mark Segelov is an Executive Advisor, leadership partner and strategic risk thinker. He works at the intersection of strategy, leadership and human insight to help leaders create clarity in complexity. Mark is also an entrepreneur and investor, having founded and supported ventures in security, technology and leadership-focused communities. He is currently completing the Executive MBA at London Business School and is a TEDx speaker.
The Segelovian Perspective
Leadership is a human journey. Clarity comes from empathy, curiosity and the courage to see beyond the obvious. My work is rooted in the idea that there is no glass, only perspectives we haven’t stepped into yet. I help leaders pause, think deeper and move forward with intention.
