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 Big Data 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.
Stefano Maestri
Chief Technology Officer of Processing Division, Markit of IHS Markit
Stefano Maestri is the Chief Technology Officer of [Markit](https://www.crunchbase.com/organization/markit#/entity), a financial information services company that helps businesses improve operational efficiency and meet regulatory requirements. Previously, he was an associate director at [Barclays Investment Bank](https://www.crunchbase.com/organization/barclays-capital). Prior to Barclays Investment Bank, Maestri worked as a development manager at [Euronext.LIFFE](https://www.crunchbase.com/organization/euronext-liffe#/entity).
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About IHS Markit: IHS provides information and analysis to support the decision-making process of businesses and governments in regards to various industries.
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Jamie Hutton
Chief Technology Officer of Quantexa
Jamie is a global authority on financial crime detection solutions and architectures, having spent over 11 years assisting major banks, insurers and product companies in harnessing technology and data in the fight against crime. Jamie took early responsibility in shaping the direction of the Detica NetReveal product and its unique capabilities. He then went on to be the key driving force behind the EMEA/AP product direction for the SAS financial crime platform. Today he continues to assist global banks with massive data architectures for financial crime.
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About Quantexa: Quantexa is a global data and analytics software company pioneering Contextual Decision Intelligence.
Dominique Guinard
Co-Founder & CTO of EVRYTHNG
Dominique Guinard is a co-founder and the chief technology officer of EVRYTHNG, the Internet of Things Smart Products Platform that connects any consumer product to the Web, and manages real-time data to drive applications. He is also a co-founder of WebofThings.org. Prior to that, he worked at MIT Auto-ID Labs, SAP, Auto-ID Labs Zurich, and Sun Microsystems. Guinard holds bachelor’s and master’s degrees in computer science. Later on, he obtained a PhD from ETH Zurich. He was listed 5th amongst the top 100 IoT thinkers by Postscapes. Early in 2012, his PhD research was granted the ETH Medal.
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About Blockchain Research Institute, EVRYTHNG, Webofthings.org: EVRYTHNG develops an IoT platform for consumer product brands, articulating data with real-time insights for billions of things.
David Kell
CTO and Co-founder of GYANA
David Kell is a scientist, technologist and nature lover. David has co-founded an ML startup before and was pursuing his PhD in AI in Oxford University when he ran into Joyeeta and her software prototype. Their combined vision of democratising access to data science is the powerful force behind Gyana. He is passionate about simplifying complexities. David is also a Math and Physics Olympiad winner and was a winner of the Gibbs Prize in Physics. He runs several CTO meetup groups and mentors women-in-tech related accelerator startups.
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About GYANA: No-code Data Analytics
Maksim Sipos
CTO of causaLens
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About causaLens: CausaLens is a casual AI software company that develops intelligent machines.
Matt Painter
CTO of import.io
Matt is the brains behind the powerful functionality in the import.io tool. His innovative ideas have helped import.io create a tool that allows anyone to tap into the huge potential of data on the web. Matt’s primary responsibility is to oversee the technical strategy and product roadmap of the company. As CTO, he is dedicated to building a team of world-class engineers to keep import.io at the forefront of the industry. Prior to co-founding import.io, Matt was a consultant for Sapient and worked as Senior Engineer and Product Architect for Yahoo.
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About import.io: import.io offers a Web Data Integration solution that provides global businesses with high-quality, scalable data from the web.
Vlad Ilyushchenko
Co-founder / CTO of QuestDB
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About QuestDB: QuestDB is an open-source SQL database designed to process time-series data, faster.
George Wetz
CPO, CTO & Founding Member of Yumpingo
George Wetz is the Chief Technology Officer at Yumpingo.
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About Yumpingo: Yumpingo is an internet company that specializes in customer engagement and analytics platforms designed for the Hospitality Industry.
Lee James
CTO of Rackspace
Lee James is responsible for helping Rackspace’s customers maximise their cloud investments across people, process and technology, as well developing new products and services. As the Chief Technical Officer EMEA Lee’s experienced in developing and delivering industry-leading cloud, analytics and SAP services for global organisations. He’s also previously been awarded for innovation after building BP’s first multi-cloud platform. In a prior role at Betfair, Lee was responsible delivering a DevOps-driven platform that performed more transactions than all the European stock markets each day. He particularly enjoys leading on global cloud transformations, advanced analytics platforms and cloud-inspired organisational transformation which delivers significant business value to customers.
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About Rackspace: Rackspace provides hybrid cloud-based services that enable businesses to run their workload in a public or private cloud.
Lee James
CTO of Rackspace
Lee James is responsible for helping Rackspace’s customers maximise their cloud investments across people, process and technology, as well developing new products and services. As the Chief Technical Officer EMEA Lee’s experienced in developing and delivering industry-leading cloud, analytics and SAP services for global organisations. He’s also previously been awarded for innovation after building BP’s first multi-cloud platform. In a prior role at Betfair, Lee was responsible delivering a DevOps-driven platform that performed more transactions than all the European stock markets each day. He particularly enjoys leading on global cloud transformations, advanced analytics platforms and cloud-inspired organisational transformation which delivers significant business value to customers.
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About Rackspace: Rackspace provides hybrid cloud-based services that enable businesses to run their workload in a public or private cloud.
Lewis Hemens
Co-founder and CTO of Dataform
Lewis Hemens is a Co-founder and CTO at Dataform.
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About Dataform: Dataform manages data pipelines in data warehouse.
Makis Saridis
CTO of Loyalize
Makis has an extensive track record in retail and technology. He is currently the Lead Systems Architect at ASOS, having previously been the Solutions and Innovations Director at Oracle. Before Oracle, Makis worked for some of the world’s largest retailers, including LVMH, M&S Group and Sainsbury’s to build out their IT solutions.
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About Loyalize: Loyalize is a white label payment, loyalty and customer engagement platform
Derek Ewing
CTO of KITE EDGE LTD
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About : Customisable Search Platform for Asset Managers/Banks
Matthieu Louis
CTO of Stepsize
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About Stepsize: Stepsize build devtools for teams to develop better software faster.
Ralph King
CTO of REalyse
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About REalyse, REalyse: REalyse is a technology company that helps UK residential property professionals understand the market.
Mark Ssentongo
CTO of Rainbirdsoft Limited
Mark is in charge of business and technology decisions at Rainbirdsoft.
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About Rainbirdsoft Limited: Rainbirdsoft Limited focuses on business intelligence and data analytics solutions with cloud and hybrid software development services.
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.
Marius Cobzarenco
Co-Founder and CTO of re:infer
I believe artificial intelligence will improve most aspects of our lives in the next decade. AI is already “eating the world” today. In particular, I am interested in how emerging technologies such as deep learning can be used to build frictionless natural language interfaces. To this end I co-founded re:infer. I’m an old-fashioned hacker with strong understanding of machine learning and its proxy fields such as probability theory, statistical modelling, linear algebra and multivariate calculus. Academically, my interests are in probabilistic generative models of language.
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About re:infer: Re:infer is the Conversational Data Intelligence platform for the enterprise. Mine, monitor and automate service conversations.
Ole Moeller-Nilsson
CTO of Pivigo
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About Pivigo: Data is and will continue to change our lives. It is generated by us, for us and around us.
Rafal Kwasny
Founder and CTO of Evolution AI
Rafal is co-founder and CTO of Evolution AI and has over 15 years’ experience in enterprise IT. He has developed big data and AI systems at institutions such as Credit Suisse, Coutts and Deutsche Bank.
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About Evolution AI: Evolution AI works with enterprises to uncover value in data and develop a natural language processing application.
Ioannis Chronakis
Head of Software, CTO of DEONTICS
Ioannis holds an MB:BS (MD) from the Medical School of University of Patras, Greece, where he also completed his internship. Shortly after he switched focus to software engineering. From 1999 to 2001 he acted as a technical director and software developer in a successful start-up Internet Service Provider (General Satellite Applications for the Internet, Patras). Between 2001 and 2002 he worked as senior software developer in a photo news agency (Reporter ltd, Athens) where he designed and implemented software and infrastructure for Internet based digital image collection, storage and distribution. In 2003 he worked as a team leader/software engineer in Hellenic Technology of Robotics (Athens) where he has developed the kernel, collision detection, virtual force field generator and communications modules for the Environment Dynamics Simulator project outsourced by European Space Agency (ESTEC dept) and used for ground testing and programming of two of the robotic arms deployed in the International Space Station. In 2005 he assumed the role of the technical manager in the same company for the commercial exploitation of space telemetry and control technology for ground systems (ANEMO project). Since 2006 he has been working with Prof John Fox (Advanced Computation Laboratory in Cancer Research UK initially, University of Oxford engineering department subsequently) as a senior medical software developer mainly developing the Tallis/PROforma decision support technology and applications for cardiovascular and oncology diseases. Ioannis is a Deontics Founder.
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About DEONTICS: Deontics was set up to commercialise Clinical Quality and Clinical Decision Support Technologies
Michael Groves
Chief Technology Officer of Mucho
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About Mucho: Mucho is a platform that brings together brands, retailers and content providers that share this passion.
Michael Groves
Chief Technology Officer of Mucho
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About Mucho: Mucho is a platform that brings together brands, retailers and content providers that share this passion.
Stuart Cochran
CTO of BridgeU
Stuart is Chief Technology Officer at Huddle and is responsible for overall product design and direction, technology and infrastructure strategy, and technical operations. He has over 20 years’ experience in both start-up and large, public enterprise software companies. Stuart has a BSc (Hons) in Theoretical Physics and a MSc in Computing and Computer Modelling of Optoelectronic Devices and Systems.
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About BridgeU: BridgeU provides a market leading guidance platform that connects universities with international schools in 130 countries.
Matthew Eric Bassett
CTO of PRODA
Matthew Eric has 15 years of experience in delivering commercial software, with a strong focus on solving data science problems. He headed up the film industry’s first data science group at Universal Pictures. Under his leadership, the team successfully increased box office revenues and cut costs for several films, and expanded to television and home entertainment. He went on to found Gower Street Analytics, offering a suite of software simulating product release strategies in response to audience viewing habits to help studios make data-driven commercial decisions. Matthew Eric holds an MSci in Mathematics and Theoretical Physics, and a PhD in Number Theory. He serves as an advisor on several academic and governmental boards on strategy and research for big data and machine learning.
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About PRODA, Sneffel: PRODA is focuses on solving core data processing pain points in real estate.
Prashant Majmudar
Founder & CTO of Growth Intelligence
Prash spent six years as an engineer at BAE Systems Detica, where he oversaw the delivery of sensor and electro-optic surveillance systems for the Ministry of Defence. He is a proponent and advocate of the use of full stack data science, machine-learning and predictive lead generation. He co-authored GrowthIntel and NIESR’s 2013 report on the UK digital economy and is well versed in Python and Natural Language Processing. – See more at: http://growthintel.com/about-us/#sthash.1CIDS80S.dpuf
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About Growth Intelligence: Growth Intelligence is a UK technology company offering a software-as-a-service product to B2B corporations.
Lukas Dirzys
Founder and CTO of Creative AI
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About Creative AI: Creative AI gives every business, big or small, the power of a dedicated marketing team.
Matthew Travers
CTO of Hanhaa
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About Hanhaa: A full service MNO supplying private 4G/5G connectivity globally / A leader in supply chain analytics with our ParceLive platform.
Steven Newson
CTO of Cahootsy Limited
15 years developing technology platforms for trading, finance and security sectors including CHP, Lloyds Bank, Lombard, Textron, Barclays and RBS. Specialties: Technical and Integration Architecture, Software Development in Java for J2EE and Ruby On Rails.
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About Cahootsy Limited: Cahootsy connects like-minded enthusiasts to share opinions, offers and best buys.
Steven Newson
CTO of Cahootsy Limited
15 years developing technology platforms for trading, finance and security sectors including CHP, Lloyds Bank, Lombard, Textron, Barclays and RBS. Specialties: Technical and Integration Architecture, Software Development in Java for J2EE and Ruby On Rails.
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About Cahootsy Limited: Cahootsy connects like-minded enthusiasts to share opinions, offers and best buys.
