Partners trained at the leading global search firms who chose to do the work differently — through technology, data, and a structured approach to leadership assessment. Each brings depth in a sector and a discipline; together they cover the boardroom, the C-suite, and the leadership tier directly beneath.
Every search is led end-to-end by a Partner — the person who scoped it stays through to onboarding. No handovers, no juniors fronting client meetings.
Mason Wilhelm was founded by Partners who had spent their careers inside the world's leading search firms and concluded the model was overdue for renewal. Combining the apprenticed craft of senior search with technology, data, and modern assessment, they built a practice that could move at the pace of its clients without trading depth for speed.
The Partners below cover Australia, the United Kingdom, and the United States. The people listed are the people you work with.
Fifteen years in leadership consulting, complemented by fifteen years in advisory and operating roles spanning Australia and the United Kingdom. Heidi brings consulting depth across all aspects of leadership search and assessment.
Sector focus runs through financial services and finance leadership — including a decade dedicated to Chief Financial Officer mandates.
Ten years in executive and board search, building on a thirty-year career that includes strategy consulting at Bain & Company, founding a global sports apparel brand, and senior commercial positions at Woolworths and Diageo. Earlier search experience at Russell Reynolds Associates and Derwent.
A recognised advisor to boards and CEOs, Stuart's strategic approach is informed by deep industry experience and combined with empathy for the people involved and a clear focus on client outcomes. Industry depth in Consumer and Retail, Defence, Aviation, and Private-Equity assets.
More than two decades guiding boards, CEOs and investors through leadership transition and succession. Anna's work spans C-suite appointments, executive assessment and benchmarking, leadership development, and organisational performance.
Public, private and family-owned enterprises — supporting high-growth and transforming organisations through acquisitions, scale-up strategies, and complex turnarounds. Deep expertise in Consumer Markets: retail, consumer products and services, luxury, lifestyle, entertainment, and retail-property mandates.
Ten years in executive search across Industrial, Healthcare, and Consumer Markets — having completed C-suite assignments throughout. Prior to moving to Australia, James spent four years as Managing Director of a logistics business and Founder of online learning business hello tutor, following an early career in executive search.
A data enthusiast, James unlocks insight on performance, fit, and potential across both search and leadership-consulting assignments.
Nineteen years of leadership-consulting experience, preceded by a decade of leadership in the military — including youngest commander of a ship.
Deep experience across financial-services search, with a focus on technology-enabled businesses, often driven by private-equity investment.
Sixteen years in executive search and leadership advisory across the United Kingdom and Australia — building deep specialisation in financial services. Most recently Partner, Financial Services at TritonExec in London, following Partner roles at Johnson Partners (Sydney) and earlier search practices at Oceans Group and Armstrong Wolfe.
Career-long focus on senior appointments across risk management, compliance, COO, and Global Markets functions — extensive Managing Director, Partner and Director-level mandates within institutional banking. Specialist craft in retained search, leadership development, and risk-aware succession planning.
Executive-search experience built during her tenure at one of the major global firms, supporting senior and C-suite appointments across multiple sectors in Australia and internationally.
A broader career spanning health policy, system reform, and research roles with the Victorian Department of Health, Safer Care Victoria, and Australian Red Cross — bringing a strong evidence-based lens to market research and organisational fit. Laure holds a PhD from Warwick Business School, with Masters-level qualifications in business administration, labour law, and intellectual-property law.
Project Coordinator at Mason Wilhelm — supporting Partners with diary management, documentation, logistics, and end-to-end coordination of mandates.
Brings extensive experience in EA roles across professional services, property, and advisory environments — including Lendlease, Mirvac, Cohen Handler, and Derwent. Recognised for organisational effectiveness, stakeholder management, and administrative discipline. Holds a degree from the University of Technology Sydney.
Each Partner is reachable directly. For initial enquiries or general correspondence, James West coordinates Australian intake.
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