Osiris Security
The Only Email-Security AI That Runs Inside Your Own Servers.
Osiris is an AI-native email security platform for regulated enterprises. Our proprietary AI detects and blocks advanced threats at the server level - milliseconds before they reach the inbox - without a single email ever leaving your network.
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- Proprietary AI built in-house - not a third-party wrapper.
About Osiris Security
Osiris Security builds AI-native email protection for regulated enterprises. The founding team began the work in 2022 at UCL (University College London) and incorporated Osiris Labs Ltd in April 2025. The company is entirely bootstrapped, with a proprietary AI model and a market-ready product developed completely in-house.
Unlike legacy email security that relies on signature-based detection, Osiris uses a proprietary neural network trained on global threat intelligence and local communication patterns. It intercepts, analyses, and classifies every email at the server level - milliseconds before it reaches the user's inbox - through a proprietary Zero Latency Architecture.
Proprietary AI. Zero latency. Full data sovereignty. What makes Osiris unique is that it can be fully self-hosted on the client's own servers: the AI comes to the data, so sensitive information never leaves the client's perimeter. Osiris is the only email security provider offering true data sovereignty alongside predictive AI threat detection.
Osiris serves clients across the UK, EU, and Middle East, was named AI Startup of the Year at the Saudi AI Expo 2024, and works through strategic partners including Nayaka Security (20+ customer pipeline over three years), FAI Comply (Cyprus), and Brookcourt Ltd (UK).
Secure data room, powered by Vestd
We work with Vestd, the UK equity management platform, to host our secure data room. For your protection, Vestd asks all visitors to complete a short eligibility check first - around five minutes. When you request more information, we also send you details on how this works. Vestd is directly authorised and regulated by the Financial Conduct Authority (FCA). More at vestd.com.
A large, fast-growing market - with no self-hosted AI competitor.
Phishing and social engineering remain the number-one entry point for cyberattacks, and generative AI has driven a 400%+ year-on-year rise in AI-powered email attacks. Traditional defences cannot keep up. Osiris is the only vendor delivering all six critical capabilities together: AI-native detection, self-hosted deployment, a proprietary AI model, zero-latency interception, an integrated education platform, and full data sovereignty.
GBP 133B
Global email-security TAM by 2030, 14.2% CAGR (Gartner / IDC 2025)
GBP 36B
UK regulated-enterprise SAM - ~27% of global TAM (Gartner / IDC 2025)
>400%
YoY growth in AI-powered email attacks (SlashNext 2025)
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How It Works
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Tell us you're interested. We'll email you further information and details on accessing our secure Vestd data room.
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Review
Explore the materials at your own pace. Reply to any email if you have questions - no pressure.
Request
Tell us you're interested. We'll email you further information and details on accessing our secure Vestd data room.
Eligibility
If it is investment you're interested in, you will be required to complete Vestd's short eligibility check (around five minutes) before accessing materials - a standard safeguard for your protection.
Review
Explore the materials at your own pace. Reply to any email if you have questions - no pressure.
The Founding Team
Bader Alghoul
CEO & Co-founder
Bader brings a deep understanding of cybersecurity operations from both enterprise and government sectors, with hands-on experience consulting and building cybersecurity programmes across the Middle East and Europe. His leadership combines operational discipline with a sharp focus on long-term product sovereignty, positioning Osiris as a category-defining solution in privacy-first email security.
Deepanjan Paul
CTO & Co-founder
An experienced security engineer and AI architect, Deepanjan has led development teams at fast-growing tech startups and contributed to large-scale infrastructure deployments. At Osiris, he oversees the design and security of the HORUS, TALON, and ATLAS agents and the MVDE detection engine that powers them, ensuring technical delivery meets the most demanding enterprise and regulatory requirements.
Rowan Sinclair
CRO & Co-founder
With over a decade in cybersecurity sales and GTM execution, Rowan has scaled revenue functions for startups and across the UK and Europe. His commercial leadership is focused on enterprise penetration, channel development, and building a high-performance sales engine tailored to regulated industries.
Frequently Asked Questions
After you request more information, we email you details on accessing our secure data room on Vestd. Vestd runs a short eligibility check first (around five minutes) before granting access - a standard safeguard for your protection.
Osiris Labs Ltd is AI-native, not AI-bolted-on. Three key differentiators: (1) Proprietary AI model built in-house, not a wrapper around third-party APIs. (2) Zero Latency Architecture that intercepts emails at the server level before delivery. (3) Self-hosted deployment option where the AI runs on the client's own servers - data never leaves the perimeter. Competitors offer none of these three together.
Bader Alghoul (CEO) and Deepanjan Paul (CTO) met during their MSc in Information Security at UCL. Rowan Sinclair (CRO) is the Director of Nayaka Security with over a decade of enterprise cybersecurity sales experience. Together they lead Osiris Labs Ltd with technical depth, commercial expertise, and an existing sales channel.