The Leadership Advisory Partner of Choice
Effective leadership is the strongest predictor of exit performance. We are the leadership partner for ambitious organisations from investor-backed scale-ups to the Fortune 500.
METHODS | SYSTEMS | QUALITIES
Select Testimonials
“We couldn’t have done it without you.”
Senior Executive
UBS Wealth Management
“Having never been coached before, I approached the process with a degree of scepticism, but my coaching experience with Deborah has been transformative. It has been unquestionably worth it.”
CFO
JMAN Group
“Working with 23MSQ has been genuinely transformative for our organisation. This has been one of the most impactful partnerships we’ve invested in.”
Portfolio CEO
Sun European Partners
“The team trust Deborah as confidant, and advisor. We work with Deborah every year at the start of the business year, to make sure we are ready for what the year entails. You will enjoy working with her!”
CEO
M-KOPA
Partners
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Founder and Managing Partner
Global transformation & leadership expert
Delivered 15+ global transformations for organisations from 600 to 150,000 staff.
Coached and trained 1,000+ senior leaders from corporate executives to Founder CEOs.
Led cost-transformation programmes delivering >$1bn in savings.
Qualified in psychoanalytic and organisational psychology at UCL Birkbeck and Tavistock.
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Partner
Transformation, value creation & realignment
Led the turnaround of a 3,500 person PE portfolio company by increasing revenues 10x and restoring profitability.
Advised on $3bn+ in Private Equity transactions at McKinsey.
Restructured the UK Department for Education, achieving savings of 33%.
First-Class BA and MPhil from the University of Cambridge in social psychology and political theory.
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Partner
Senior-leader development & talent strategy specialist
Led leadership and talent development for 40% of Goldman Sachs’ global workforce.
Advised PE, hedge fund, and science-driven clients on succession planning, talent review, leadership assessment, and executive coaching.
Delivered senior-level coaching and development for emerging leaders through to C-suite executives.
Holds a PhD in Psychological Research and an MSc in Neuroscience, with coaching training from Columbia Business School.
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Partner
Global talent expert
35+ years advising boards, investors and entrepreneurs across global markets.
Trusted partner to senior leaders delivering enduring leadership outcomes across sectors.
Built and maintains deep global networks of clients and senior executive talent.
Former Executive Committee member at SHREK in strategy and innovation roles.
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Partner
Talent & family business expert
Executive search specialist across privately held, family-owned and venture-backed businesses.
Extensive international network of investors and entrepreneurs across European and global markets.
Board member, Swiss-American Chamber of Commerce (Zurich).
Board member, de Vigier Foundation supporting Swiss start-ups.
Why Our Work Matters
When PE firms get a CEO change wrong, average IRR drops by ~82% versus getting it right first time.
69% of PE and portfolio leaders cite talent as the most important value driver, ahead of operating efficiency (49%) and organic growth (30%).
Only one-third of portfolio company executives have successors identified for key roles, exposing governance and continuity risk.
Fewer than 1 in 9 PE firms have conducted formal analysis to identify critical “can’t-lose” talent.
58% of PE-backed CEOs are replaced within two years, rising to 73% over the full investment cycle.
Only 7% of CEOs surveyed by Fortune believe their companies are building effective global leaders, and just 10% said that their leadership-development initiatives have a clear business impact.
Sources: Batlaw & Charan (2021); AlixPartners Annual PE Survey (2026); Bililies, Harvard Business Review (2024); McKinsey (2017).
Contact Us
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