The firm prominent individuals and their advisers call when something doesn't feel right.

Defuse Global is intentionally structured as a small, experienced advisory practice.

Complex personal risk requires experienced judgement, not scale. We focus on clarity, discretion and measured advice rather than large teams or operational noise.

We work with advisers, family offices, and prominent individuals when behaviour becomes concerning, but its meaning or trajectory is unclear. Our role is to provide early clarity — before uncertainty or anxiety begins to influence decision-making.

We do not trade in fear, and we do not default to visible security measures.

Instead, we take the time to understand the behaviour, the context and the likely intent. From there, we advise proportionate, evidence-led action. In many cases, that means reassurance rather than escalation.

Defuse Global exists to provide calm, structured judgement at moments when pressure or exposure could otherwise push decisions in the wrong direction.

“Defuse Global’s ability to identify, analyse, and assess online hate and targeted threats is genuinely first class. It has allowed us to make smarter, more proportionate decisions – strengthening defence and deterrence around the Principal and their family while protecting the security budget and ensuring financially prudent outcomes.

At a personal level, Philip is the one who tells me whether my client is actually in danger and, if so, what to do about it. He won’t oversell, he won’t undersell- he’ll just tell me the truth. That clarity and integrity are invaluable. Defuse’s regular reporting provides calm, evidence-based reassurance, cutting through noise and unfounded concern.

On one occasion, their rigorous, scientific assessment enabled appropriate escalation to law enforcement, resulting in a decisive outcome.

Defuse Global is now a trusted part of our protective ecosystem, and I would recommend them without hesitation.”

CSO US-based Private Family Office – 2026

“For those advising individuals and organisations on threat risks, it’s essential to understand who and what one is dealing with. Philip Grindell’s decades of real-world experience mean his voice is ignored at your and (more importantly) your client’s peril.”

Julian Pike – Lawyer and Head of Reputation Management and Sport at Farrer & Co

“Philip Grindell is one of the few threat assessment experts in the world with extensive experience advising public figures, politicians, and royal families. His compassionate view of ensuring clients feel safer demonstrates why his expertise is in demand. ”

Gabrielle Thompson – Threat Assessment Expert & Consultant to Public Figures and Corporations

“Philip is an expert in problem-solving threats emanating from the online environment. He has a unique skill set derived from several years of work with Members of Parliament and other high-profile individuals. There are few, if any, individuals in the country with the experience of Philip in this field of work.”

Simon Causer – former Head of Security at The City of London Corporation

Philip Grindell MSc CSyP – CEO & Founder

Philip Grindell is a trusted risk and threat adviser to prominent individuals, families, and the advisers who support them. He is typically engaged early — when uncertainty, scrutiny, or a shift in someone’s behaviour begins to affect judgement, often before a situation is clearly dangerous.

As founder and CEO of Defuse Global, Philip helps family offices, private clients, lawyers, and strategic communications firms recognise emerging personal risk and respond proportionately, discreetly, and without unnecessary disruption.

He brings over 35 years’ experience across UK law enforcement, counter-terrorism, intelligence, and protective security — including serving as a Scotland Yard detective, Counter-Terrorism Security Coordinator, and leading the specialist Parliamentary threat assessment capability established after the murder of Jo Cox MP.

His approach to behavioural threat assessment was shaped by training under Dr Robert Fein, co-author of the U.S. Secret Service’s Exceptional Case Study Project, the research that transformed how the world prevents targeted violence. Dr Fein wrote the foreword to Philip’s book.

Philip holds an MSc in Security Management, is among fewer than 300 globally recognised Chartered Security Professionals, and is the author of Personal Threat Management: The Practitioner’s Guide to Keeping Clients Safer (2025). Defuse Global is recognised in the Spear’s 500 as Top Recommended in Security, Intelligence and Investigations.

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Amanda Grindell – Director of Business Development

Before joining Defuse Global, Amanda’s experience was in the TSCM and commercial counter-espionage industry, where discretion is a necessity, not a preference.

That background shapes how she supports Philip and the clients Defuse Global works with. People often come to Defuse at moments of unease, sharing concerns they have not voiced elsewhere. Amanda understands that trust is built quietly, through care, accuracy, and doing exactly what one says they will do.

She manages operations, develops proposals, and builds long-term client relationships, ensuring work runs smoothly behind the scenes.

Her international experience enables her to work comfortably across cultures and time zones, and her calm demeanour helps people feel at ease, even when conversations are challenging.

Clients know that when they speak to Amanda, they are being listened to — and that what they share stays with her.

Dr Lorraine Sheridan, PhD

Chartered Forensic Psychologist

Lorraine works at the point where behaviour starts to worry people, but the level of risk is not yet clear. Her role is to help advisers, organisations, and individuals understand whether their concern is justified, what genuinely matters, and what, if anything, needs to happen next.

She completed Europe’s first PhD on stalking and has spent more than 25 years working on cases involving stalking, harassment, threatening behaviour, and harmful communications. Much of her work sits in situations where there is uncertainty, conflicting advice, or rising anxiety, where proportionate judgement matters more than labels.

Lorraine has advised police forces, courts, governments, corporations, and security professionals internationally. An evidence-based harassment risk assessment she developed was used nationally by police in England and Wales for many years, shaping how large numbers of cases were assessed and managed.

Registered as a forensic psychologist in both the UK and Australia, Lorraine is known for her calm, evidence-led approach. She helps separate genuine risk from background noise, avoids unnecessary escalation, and supports decisions that people can stand behind.

Her work reflects Defuse Global’s values: clarity over alarm, judgement over assumption, and action only where it is genuinely needed.