Best Startup
At Best Startup UK we track over 130,000 UK startups and over 500,000 people who hold key positions in these companies. We use this directory of startups to highlight top employees, founders and board members we think deserve more appreciation than they are currently getting.
This list showcases the top London based CTO’ operating in the Security space. If you think a CTO’ is missing from this list, feel free to contact our editor on editor@beststartup.co.uk.
The individuals on this list have been included because of exceptional performance in one of the following categories:
- Innovation – Operating as a key part in an extremely innovative business or startup.
- Growth – Operating as a key figure in the growth and upscale of a market leading business or startup.
- Management – Showing exceptional management skills.
- Societal impact – Putting their business on the map for their positive societal or environmental impact.
Our Data – We source our data from OSINT (open source intelligence) and public directories such as Companies House UK, Crunchbase, SemRush and many more. The data from these sources should be treated with a degree of caution and verified yourself.
Rajiv Mathur
CTO of Chainvine
Dr Rajiv Mathur is the co-founder chief technologist at Chainvine – Blockchain/DLT technology company headquartered in the UK. Dr Mathur has 20 years of extensive industry and academic research experience with numerous years in technology leadership roles both in the UK and internationally with some of the best known companies in the world such as Vodafone, Telefonica, Lloyds Banking Group, HSBC, Nationwide Building Society etc. His experience in the industry has been in technology architecture, fraud detection and security of payments, digital transformation and agile delivery. In addition to his work in the industry, Dr Mathur also comes from an academic research background with his last academic position at Distributed Systems Engineering Research Group within the Computer Science Department at Imperial College London. Dr Mathur has a PhD in Mobile Communications Architecture from University of Strathclyde in Glasgow, UK.
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About Chainvine: Next Generation Enterprise Systems / Identity Access Management (IAM) / Technology Providers Blockchain
Ian McShane
Field CTO of Arctic Wolf
Ian McShane is the Field Chief Technology Officer of Arctic Wolf. Ian has over 20 years experience in cybersecurity and operational IT, with humble beginnings in a tech support call center and live-fire experience leading sysadmin teams for large multi-national organizations. As a former Gartner analyst, Ian has advised the largest and fastest growing technology companies in the world as well as tens of thousands of organizations world-wide. He is well known as a trusted advisor and popular commentator in our industry, and prior to joining Arctic Wolf Ian also spent time in various product leadership end executive roles at Symantec, Endgame, Elastic, and CrowdStrike.
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About Arctic Wolf: Arctic Wolf helps companies end cyber risk by providing security operations as a concierge service.
Neil Murray
CTO and Co-Founder of Mimecast
Neil Murray is one of the people who helped build Mimecast. Not just metaphorically, but literally. He’s led the development team from our inception – when he was the development team – overseeing the construction of our platform from the ground up. It’s thanks to him that Mimecast, uniquely, was conceived and built as a single, integrated platform rather a set of bolted-together services. Today he oversees the architecture of the service platform and sets out the overall technical vision and strategy for the service. Before Mimecast, Neil was the CTO of South African, JSE-listed, Global Technology Services, a provider of business information solutions, which had bought Pro-Solutions, a software development company he helped found in the early 90s. Neil’s 20 year-career also includes experience architecting and building leading software products for internet banking, messaging and rapid application development.
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About Mimecast: Mimecast is a SaaS-based email management platform enabling companies to administer business communications and data.
Edward Bishop
Co-Founder & CTO of Tessian
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About Tessian: Tessian creates a Human Layer Security that helps people work without security disruptions getting in the way.
Dominic Forrest
CTO of iProov
Dominic is responsible for the design and development of iProov’s cloud-based infrastructure. Prior to taking up his role with iProov, Dominic was the Senior Vice President of Engineering at mBlox Inc., where he managed a team of fifty developers over three continents, responsible for developing and scaling the platform so that it could seamlessly run over 6 billion transactions per year. Prior to mBlox, Dominic had over fifteen years’ experience in a number of senior roles within UK Telcos and ISPs. This included the responsibly for the Architecture and design of voice, transmission and IP networks for NTL, followed by the launch and growth of the company‘s broadband service to over 2 million customers.
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About iProov: iProov develops face authentication technology for online identity verification by global banks and governments.
Saviz Izadpanah
CTO / Director of HighQ
Saviz joined HighQ in 2005 as CTO, responsible for leading HighQ technology strategy, product management and product development. Prior to HighQ, Saviz was the global head of Debt Capital Markets IT at Deutsche Bank where he was responsible for the program management of multiple applications including Deutsche Bank’s online debt order capture system “dbbonds” for the global DCM sales teams. Prior to Deutsche Bank, Saviz was part of the lead web development team at Barclays Capital. Saviz holds a Bachelors of Engineering in Computer Science and Technology from Imperial College of London.
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About HighQ: HighQ empowers leading law firms and corporate legal teams to transform the way they work and deliver legal services.
Yogesh Patel
CTO & Head of AI Research of Callsign
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About Callsign: Delivering digital trust through simple secure customer interactions
Chris Goddard
CTO of G-Research
Chris Goddard is the Chief Technology Officer at G-Research.
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About G-Research: G-Research is a research and technology company that specializes in Quantitative Research and IT Infrastructure.
David Bestwick
Chief Technology Officer of Arqit Limited
David Bestwick is a Chief Technology Officer at Arqit company.
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About Arqit Limited: Arqit develops a quantum encryption platform.
Matt Holland
CTO & Co-Founder of Seedata.io
Matt Holland is the Co-Founder and Chief Technology Officer of Seedata.
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About EF Education First, Seedata.io: Seedata.io is a cybersecurity platform that helps companies mitigate data leak incidents and crime threats.
Chris Hewertson
Principal | CIO | CTO | Board Advisory of Freeman Clarke
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About Freeman Clarke: Freeman Clarke creates, manages, and executes technological strategies and solutions to help one’s company grow.
Michael Huth
Chief Technology Officer of Xayn
Michael Huth is CTO of XAIN AG and a Professor of Computer Science at Imperial College London. He is a Diplom-Mathematiker (TU Darmstadt, Germany) and obtained his Ph.D. in 1991 (Tulane University of Louisiana, USA). His research focuses on cybersecurity (notably the interplay of trust, security, risk, and economics), as well as security and privacy in machine learning. Michael served as the technical lead of the Harnessing Economic Value theme at PETRAS IoT Cybersecurity Research Hub in the UK. Professor Huth is an active research and product advisor within London’s cybersecurity startup scene.
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About Xayn: Xayn builds Web Search as it should be.
Stuart Tarrant
Co-founder & CTO of 4sl
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About 4sl: 4sl focused on data custody and availability services for mid-size and enterprise firms.
Philippe Levieux
CTO of Traces
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About infltr – for infinite filters, Traces: Traces lets you share digital messages anywhere in the world. To get messages, you have to be in the right place at the right time.
Daniel Saul
Co-Founder & CTO of Risk Ledger
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About Risk Ledger: Risk Ledger is the world’s most innovative vendor risk management platform, built on the model of a secure social network.
Bryan O’Neil
Chief Technology Officer of Digital Shadows
Bryan O’Neil is the chief technology officer of Digital Shadows.
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About Digital Shadows: Digital Shadows identifies unwanted exposure, protect against external threats, and minimize digital risk.
Patrick Craston
CTO of Intruder
Patrick has worked in software development for a decade. Before joining Intruder he was the Head of Development at one of the UK’s leading cyber security agencies. He has a PhD in Computer Science where he explored human cognition using artificial intelligence technologies.
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About Intruder: Intruder is a cloud-based vulnerability scanner that finds cyber security weaknesses in your external infrastructure.
Charlotte Slingsby
Co-founder, CTO of Nettoken
Charlotte Slingsby is the founder of Moya Power: London based wind energy harvesting startup, developing a flexible building textile to scavenge from existing infrastructure. Our future relies on farming green energy, therefore their mission is to capture abundant ambient wind energy from wasted urban space; creating energy generating hubs. Working together with CrossRail they have tested the potential in underground train tunnels, and have been recognised by Forbes 30u30 and Shell LiveWIRE.
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About Nettoken: The control panel for your digital identity!
Christopher Doman
CTO and Co-Founder of Cado Security Ltd
Chris Doman is the CTO and Co-Founder of Cado Security. He joined the industry after winning a forensics and development competition run by the US DoD. Chris is known for building the popular threat intelligence portal ThreatCrowd, which subsequently merged into the AlienVault Open Threat Exchange, later acquired by ATT. Whilst working at PwC and ATT AlienVault in research and development, Chris published a number of widely read articles and papers on targeted cyber attacks. His research on topics such as the North Korean government’s crypto-currency theft schemes, and China’s attacks against dissident websites, have been widely discussed in the media. He has given interviews to print, radio, and TV such as CNN and BBC News. cdoman@cadosecurity.com
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About Cado Security Ltd, Ignite Research: Cado Security provides the cloud investigation platform that empowers security teams to respond to threats at cloud speed.
Shadi Razak
Chief Technology Officer and Co-Founder of Angoka
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About Angoka, CyNation: ANGOKA is an IoT security company focused on protecting machine-to-machine communications for Smart Cities and Mobility.
Charaka Goonatilake
Founder & CTO of Panaseer
Charaka is the brains behind our big data technology. His team lead the way in generating innovative techniques for deriving new security insight for our customers.
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About Panaseer: Panaseer helps businesses make informed, risk-based security decisions.
Leonard Austin
Founder / CTO of Ravelin
Leonard Austin is the chief financial officer of [Ravelin](https://www.crunchbase.com/organization/ravelin), a smart fraud prevention platform. He was previously a technical lead at Hailo. Prior to Hailo, Austin founded Recensus before which he was a director at Welford Media. Austin holds a bachelor’s degree in physics from the University of Leicester.
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About Ravelin: Ravelin is a smart fraud detection and prevention platform that helps companies stop online payment fraud.
JP Jones
CTO of Top10VPN
JP is Co-Founder and EVP Technology at Student.com, the world’s leading marketplace for international student accommodation. JP has worked with co-founder Shak on and off for the past 14 years building various tech companies and met Founder and CEO Luke Nolan along the way in Shanghai in 2006. Witnessing Luke’s passion and vision for the business, as well as the enormous opportunity to scale the marketplace, JP joined the business in 2014 and is in charge of the company’s technology solutions, while also advising on platform strategy and acting as a soundboard for Shak and Luke. After getting his first computer at age 3, JP was hooked and subsequently made computers, and everything tech-related, a part of his DNA. As a member of the founding team and CTO at VoucherCodes.co.uk, JP has a proven track record of scaling companies for the international market, along with heading up the R&D department at The Search Works, one of Europe’s leading search marketing technology companies.
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About Top10VPN: Top10VPN.com is a leading VPN (Virtual Private Network) review website. We provide unbiased reviews and advice about VPN services.
Panos Dimitriou
CTO & Founder of Encode
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About Encode: Enorasys Security Analytics enables continuous cyber situational awareness to address advanced persistent threats (APTs).
Richard Wells
CTO of ThreatInformer
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About ThreatInformer: ThreatInformer provide advanced security metrics tailored for cyber insurance underwriters.
Flávio Heleno
CTO & Co-founder of Veridu
Founder at Veridu.com
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About sorteia.eu, Veridu: Veridu offers a range of frictionless, consent-driven social identity solutions to reduce fraud in the global internet economy.
Sonal Rattan
CTO of eXate
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About eXate: eXate unlocks the value of production data by allowing you to share it safely, because data privacy is at the heart of everything we do.
Eitan Moriano
CTO of Mazor
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About Mazor: Mazor offers solutions detection of threats on network and security components.
Thomas Olofsson
Chief Technology Officer of FYEO
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About FYEO, SEC-T: FYEO is an online threat monitoring and intelligence. mission to empower people to secure and take back control of their online security.
Radek Dymacz
Co-founder/ CTO of Kazoup
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About Kazoup: Protect, identify and control access to sensitive information across Office 365, G Suite and more
Adrian Taylor
CTO of ITC Secure
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About ITC Secure: ITC Secure Networking provides organisations with assured IT. We design and integrate secure cloud based and on premise IT Network.
Tony Richards
CTO of Securestorm
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About : Securestorm – The Expert Advisers on Cloud and Cyber Security
