Stephen Gillen net worth is estimated to fall somewhere between $2 million and $5 million as of 2026. That number isn’t confirmed by any audited financial statement, and Gillen himself has never published an exact figure. What we do know is where the money comes from: his company Roar Media Creative, his bestselling book, paid speaking events, and brand deals tied to his name.
If you’ve heard his story before, you know why people search for this. Gillen spent close to two decades involved in organized crime in London and served 17 years as a Category A prisoner, the UK’s highest security classification. Then he came out the other side as a business owner, published author, and international speaker. That’s not a small pivot, and it’s the reason his name draws so much curiosity.
This guide walks through his early life, how he built his income after prison, what his main revenue streams look like today, and what his story can teach anyone thinking about starting over.
Who Is Stephen Gillen
Gillen was born in England but spent his first nine years in Belfast during the height of the Troubles, the conflict between Irish nationalists and unionists that gripped Northern Ireland for decades. He’s said in interviews that he witnessed a man get shot in front of him when he was seven years old, and that his aunt Madge, who raised him, died not long after. Those two losses shaped a lot of what came next.
After moving back to England and then London, he went through an unstable childhood in the care system. He was first sent to prison at fourteen. Over the following twenty years, he was pulled deeper into organized crime in London, eventually becoming, in his own words, one of the most wanted men in the country. That path led to a seventeen-year sentence as a Category A prisoner, held in some of Britain’s most secure units.
Profile Summary
| Category | Details |
|---|---|
| Full Name | Stephen Gillen |
| Known For | Author, entrepreneur, motivational speaker |
| Birthplace | England (raised in Belfast, then London) |
| Background | Former organized crime figure, Category A prisoner |
| Years Incarcerated | 17 years |
| Book | The Monkey Puzzle Tree (2020) |
| Company | Roar Media Creative (CEO) |
| Estimated Net Worth | $2 million–$5 million (unverified, public estimate) |
| Notable Recognition | 2020 Sunhak Peace Prize nominee |
How Stephen Gillen Makes His Money
His income isn’t tied to one job. It’s spread across a handful of ventures that all lean on the same thing: his story and his name.
Roar Media Creative. Gillen is CEO of Roar Media Creative, a media and brand development company that works on production, storytelling, and content projects. This is listed as his primary business role on his public profiles.
Book sales. His memoir, The Monkey Puzzle Tree, came out in 2020 and covers his childhood in Belfast, his years in organized crime, and his time in prison. It won recognition at the People’s Book Prize and has been optioned for a film adaptation, with reports of a planned biopic tied to his story.
Speaking engagements. Gillen works as a paid keynote speaker, appearing at corporate events and leadership conferences. Speakers with a strong personal story and corporate appeal typically charge anywhere from a few thousand to tens of thousands of dollars per event, though Gillen’s specific rates aren’t publicly listed.
Media and TV projects. He’s been described as an executive producer and writer tied to crime-focused television content, and his life story has drawn coverage from major UK outlets including the Sun, the Mirror, and the Daily Mail, along with BBC documentary coverage.
Consulting and advisory work. Some coverage of his career points to advisory roles connected to rehabilitation and behavioral change programs, building on his personal experience with the justice system.
Why People Are Searching for This in 2026
A few reasons keep this topic active. His book film adaptation has been in development for a few years now, which brings fresh attention every time there’s news on it.
He’s also active in media appearances and continues to build his public profile as a peace advocate, having been nominated for the Sunhak International Peace Prize back in 2020. And stories about redemption and turning your life around tend to have staying power online, especially when the before-and-after is this extreme.
Early Life: From Belfast to London’s Underworld
Gillen has talked openly in interviews about how his childhood shaped everything. Growing up in Belfast during the Troubles meant exposure to violence most people never see. He’s described watching someone get shot as a young child, and losing his aunt Madge, the woman who raised him, soon after. He’s said he didn’t talk about any of it for years.
That background followed him into an unsettled childhood in England’s care system and then into London, where he got pulled into organized crime as a teenager. By his own account, he saw it as his way out of poverty, a route to money and status he didn’t have access to otherwise. It didn’t work out that way. He ended up serving 17 years, much of it as a high-security Category A prisoner.
The Turning Point
The shift didn’t happen overnight, but Gillen has pointed to his time in prison, plus dealing with addiction, as the period where things started to change. He’s spoken about using that time to work on himself and start planning what a different life could look like once he got out.
After his release, he moved into entrepreneurship and public speaking. Writing The Monkey Puzzle Tree gave him a way to put the whole story on paper, and its reception, strong enough to earn recognition at the People’s Book Prize and interest from film producers, helped establish him as more than just a one-off news story.
Common Mistakes People Make When Researching This Topic
Treating estimated figures as confirmed. A lot of net worth sites list a specific number as fact. In Gillen’s case, like with most private individuals, there’s no public financial disclosure to back that up. Any figure you see, including the range in this article, is an estimate based on visible business activity, not a verified statement.
Ignoring how recent the information is. Gillen’s business activities have expanded over time, so an article written a few years ago may not reflect where his ventures stand now.
Skipping the context. His financial story doesn’t make sense without his background. The reason his speaking career and book work at all is because of where he started, so leaving that out misses the point of why people are interested in the first place.
What His Story Teaches About Starting Over
You don’t need Gillen’s specific past to take something from how he rebuilt his income. A few patterns stand out:
- He turned a personal story into a product, the book, rather than keeping it private.
- He built more than one income stream instead of depending on speaking fees alone.
- He stayed visible through media and interviews, which kept opportunities coming.
- He picked a business focus, media and storytelling, that connected directly to what he already knew how to do.
Frequently Asked Questions
What is Stephen Gillen net worth?
Public estimates place it somewhere between $2 million and $5 million, though there’s no official audited figure confirming this. It’s based on his visible business activity rather than a disclosed statement.
How did Stephen Gillen make his money?
Mainly through his company Roar Media Creative, book sales from The Monkey Puzzle Tree, paid speaking events, and media or consulting work tied to his public profile.
What was Stephen Gillen in prison for?
He served 17 years as a Category A prisoner in the UK following two decades of involvement in organized crime in London. He hasn’t gone into detailed specifics of individual charges in most public interviews.
Is The Monkey Puzzle Tree being made into a movie?
Yes, the book has been optioned for a film adaptation, and there’s been ongoing coverage of a planned biopic based on Gillen’s life.
What is Stephen Gillen doing now?
He runs Roar Media Creative, continues writing and speaking publicly, and has been involved in peace advocacy work, including a 2020 nomination for the Sunhak International Peace Prize.
Final Thoughts
Stephen Gillen’s net worth isn’t a confirmed number, and anyone telling you otherwise is guessing just like everyone else. What’s solid is the career behind the estimate: a company, a well-received book, a speaking circuit, and a public profile built entirely on a story that started in one of the worst places a person can end up. Whether the number lands closer to $2 million or $5 million probably matters less than how he got there.
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