Trusted professionals

Every engagement is led by a senior professional with deep operational expertise, bringing clarity, calm and decisive leadership to your most critical moments.

Meet the leadership team

Trusted leadership. Global reach. Quiet execution.

BM&T’s leadership team brings together deep operational expertise, ethical conviction and decades of real-world turnaround experience. We deliver decisive, discreet solutions that stabilise businesses under pressure and unlock lasting value.

Alan Tilley

Chair, Founder

Anton de Leeuw

Chief Executive Officer

John Mansell

Operating Partner, Founder

Sharon Warner

General Manager

trusted professionals alongside you

Global experts. Local insight. Proven leaders.

BM&T delivers high-stakes mandates through a trusted bench of independent operating partners, industry experts and legal professionals, each a proven leader with a track record of delivering under pressure. We step in at moments of complexity to stabilise operations, fill executive gaps, align stakeholders, and lead recovery or repositioning when outcomes are on the line.

Stabilising businesses. Unlocking value. Enabling sustainable transformation.

50

+

Senior professionals with real-world executive and turnaround experience

14

+

Jurisdictions navigated across legal, financial and cultural systems

4

Continents with mandates delivered seamlessly across borders


When the stakes are highest, you need people who’ve been there and delivered. That’s the BM&T difference.

BM&T is a founding member of ERS — a European alliance of restructuring specialists delivering seamless execution across jurisdictions.

What our clients say about us

"Forever Grateful"
I am forever grateful!
MC, Chairman (UK)
MC, Chairman (UK)
"Invaluable Assistance"
BM&T provided invaluable assistance with practical advice and support on planning, negotiating with creditors, and ultimately overcoming the financial difficulties.
MI, CEO, (Oxford, UK)
MI, CEO, (Oxford, UK)
Experts In Their Field
I think of him like a surgeon – an expert in his field, and he did surgery on my business. We now have a global network of distributors and an office in North America.
EH, CEO, (Holland/USA)
EH, CEO, (Holland/USA)
Clear & Concise Advice"
I was initially very doubtful when we first started the process, but BM&T was able to quickly assess the situation and provide clear and concise advice that allayed my concerns.
AF, Chairman (USA/UK)
AF, Chairman (USA/UK)
"Common Sense"
They combine experience, common sense, integrity, ideas, perseverance and the ability to inspire, motivate and work well with other people.
Carlos Gila
Oaktree Capital Management
"Eased Major Stress"
Anton handled the bank and factoring firm calmly, securing terms that released my PG and eased major stress—freeing me to focus and become far more productive.
SS, MD (UK)
SS, MD (UK)
"Forever Grateful"
I am forever grateful!
MC, Chairman (UK)
MC, Chairman (UK)
"Invaluable Assistance"
BM&T provided invaluable assistance with practical advice and support on planning, negotiating with creditors, and ultimately overcoming the financial difficulties.
MI, CEO, (Oxford, UK)
MI, CEO, (Oxford, UK)
Experts In Their Field
I think of him like a surgeon – an expert in his field, and he did surgery on my business. We now have a global network of distributors and an office in North America.
EH, CEO, (Holland/USA)
EH, CEO, (Holland/USA)
Clear & Concise Advice"
I was initially very doubtful when we first started the process, but BM&T was able to quickly assess the situation and provide clear and concise advice that allayed my concerns.
AF, Chairman (USA/UK)
AF, Chairman (USA/UK)
"Common Sense"
They combine experience, common sense, integrity, ideas, perseverance and the ability to inspire, motivate and work well with other people.
Carlos Gila
Oaktree Capital Management
"Eased Major Stress"
Anton handled the bank and factoring firm calmly, securing terms that released my PG and eased major stress—freeing me to focus and become far more productive.
SS, MD (UK)
SS, MD (UK)
"Forever Grateful"
I am forever grateful!
MC, Chairman (UK)
MC, Chairman (UK)
"Invaluable Assistance"
BM&T provided invaluable assistance with practical advice and support on planning, negotiating with creditors, and ultimately overcoming the financial difficulties.
MI, CEO, (Oxford, UK)
MI, CEO, (Oxford, UK)
Experts In Their Field
I think of him like a surgeon – an expert in his field, and he did surgery on my business. We now have a global network of distributors and an office in North America.
EH, CEO, (Holland/USA)
EH, CEO, (Holland/USA)
Clear & Concise Advice"
I was initially very doubtful when we first started the process, but BM&T was able to quickly assess the situation and provide clear and concise advice that allayed my concerns.
AF, Chairman (USA/UK)
AF, Chairman (USA/UK)
"Common Sense"
They combine experience, common sense, integrity, ideas, perseverance and the ability to inspire, motivate and work well with other people.
Carlos Gila
Oaktree Capital Management
"Eased Major Stress"
Anton handled the bank and factoring firm calmly, securing terms that released my PG and eased major stress—freeing me to focus and become far more productive.
SS, MD (UK)
SS, MD (UK)

Trusted experts. Global experience. Relentless focus. Every mandate is led by a proven leader with the judgement and resilience to deliver under pressure. No theatrics, just calm authority, clear thinking and serious execution.

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when outcomes matter most

What sets BM&T professionals apart

BM&T professionals are seasoned leaders with proven expertise, trusted to act decisively in the most complex, high-stakes situations across industries and borders.

Real-world leadership

Each trusted professional has held senior executive roles, whether as interim CEO, CRO or operating partner, delivering results when failure was not an option.

Global reach, local mastery

With operations spanning 14+ jurisdictions and four continents, we combine global scale with on-the-ground insight to deliver tailored, culturally attuned solutions.

Independent and uncompromised

As an ethical, conflict-free firm, we act solely in the interests of the businesses and stakeholders we serve - ensuring clarity, trust and objectivity.

Operational excellence

We go beyond financial theory. Our interventions stabilise operations, restore management confidence and preserve enterprise value, starting from day one.

Outcome-driven execution

Every engagement is laser-focused on outcomes that matter - stabilisation, value preservation and stakeholder alignment, delivering tangible impact, not just advice.

Calm in chaos

In critical moments, trusted professionals bring authority, balance and clear judgement to lead organisations safely through uncertainty and complexity.

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