About us
Our story
Every story has a hero. But in the digital age, no hero stands alone against an invisible front.
Cyber resilience is the defining challenge of the digital age.
Established in Singapore in 2020 by the global investment firm Temasek, our founding stemmed from the recognition that cyber threats pose an existential risk to organisations and global portfolios alike.
From the outset, ISTARI has been built around a client-centric belief that true resilience requires a collective force of talent, knowledge, and technology. While much has evolved since our inception, this principle remains at the heart of everything we do — across bespoke advisory, education and learning, and innovation with emerging and established partners across our networks.
Even the most resilient organisations need a strategic ally to watch the perimeter.
In the literature of Tolkien, the ISTARI were wise wizards sent to aid the people of Middle-earth against the threat of Sauron.
Our Middle-earth is the digital world, where the threat landscape
is perilous and ever-changing. Threats are evolving at a pace and complexity no single individual or organisation can fully track—ourselves included. But this is not a battle for a lone superhero. It is a mission that demands a coordinated response.
We are the silent partner in your defence, ensuring your story continues uninterrupted.
By building the defining cyber ecosystem of our time, we stand ready to meet this challenge, to ensure your organisation and team master long-term resilience.
We’re headquartered in London, U.K., with teams and offices across Europe, the United States and Singapore.
People
Our colleagues make our business.
Expert network
Join a powerful, global community of the world's leading cybersecurity practitioners
We transform companies into cyber resilient organisations
Combining practitioner-led advisory, proprietary research, and investment foresight, we help bridge the gap between business strategy and cyber risk. Through our ecosystem of world-class experts, innovative portfolio companies, and leading academic partners - including Cambridge and Oxford - we anticipate what’s next, outpace cyber threats, and enable our clients to protect value, accelerate growth, and transform their businesses with confidence.
An ecosystem of talent and innovation
We are building a new model for cybersecurity. Beyond traditional advisory services, we convene and invest in emerging cyber companies and venture funds - giving us a unique vantage point to identify and integrate cutting-edge innovation directly into our work. This dual lens offers a panoramic view of the evolving threat landscape, enabling us to deliver solutions that are both proactive and forward-thinking.
Expertise and understanding
We combine the scale and rigor of a large-scale consultancy with the agility and specialised insight of a focused cyber firm. Our team has helped some of the world’s largest organisations solve their most complex cybersecurity challenges.
How it works
We provide a simple way to connect your expertise with high-value client challenges
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An ecosystem of talent and innovation
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You provide the expertise
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One team
We are stewards on our clients’ journey to a resilient business landscape.
By bringing together innovative companies, deep advisory expertise, and leading academic research, we provide a holistic approach that helps our clients stay ahead in an ever-changing world.
We are looking for leading practitioners and industry specialists with deep, specific expertise in cybersecurity. If you are an independent expert seeking to apply your skills to global, complex cyber challenges, we want to hear from you.
The benefits of joining
Working with you, the goal is to build a strategic partnership designed for success.
We connect you directly with strategic challenges in global organisations and handle everything else, so you can plug in, deliver your expertise, and move on to the next challenge.
Work the way you work best. Choose the engagements that fit your expertise, your availability and your interests, with no fixed commitments and no rigid structures.
Stand alongside a community of senior operators and advisors tackling the most demanding problems in cyber, alongside peers who've been in the room and done the work.
Join our team
If this sounds like the right fit, we'd love to hear from you. Submit your application and a member of the team will be in touch.
Careers
Where your work life becomes your life's work.
We want ISTARI to be a career accelerator—a place that challenges, supports, and empowers our teammates to reach their full potential and make a meaningful impact.
Here, you’ll have the freedom and backing to shape one of the most defining chapters of your professional journey. Our commitment is simple: to equip you with both the breadth and depth you need to excel—so you can grow as an individual while driving lasting impact for the organisations we serve.
Our values
A culture built by all, not few.
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Lasting impact
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Collective power
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Decency
Open positions
We're growing. Come join us.
Browse our current openings below. Don't see the right role? We're always open to hearing from people who'd bring something to the team — drop us a line.
