Device Authority is proud to have leaders who are industry experts with proven experience in the IoT, Security and Enterprise software marketplaces.

Device Authority’s leadership team is committed to operating with the utmost integrity in building and leading an organisation dedicated to the success of all its stakeholders.

Tern PlcAlsop Louie Partners, DA Investment Holdings LLC and Device Authority employees own Device Authority Limited.

Tern Plc's shares are traded on AIM (TERN.L). The company is focused on the fast changing IT sector and has interests in several cloud and mobile technology businesses. Tern acts as a transformational catalyst, which applies its expertise and network to build value in its companies and for its investors.

Alsop Louie Partners is a team of seasoned investors who are entrepreneurs and executives with distinctive reputations. Each partner has experience building technology or media businesses that have grown into successful operating companies, public and private. Among our partners, we have experience in new media, gaming, SaaS, cloud infrastructure, security, and mobile.


Darron Antill
Chief Executive Officer

Darron has extensive experience in leading and growing IT companies that specialize in security & analytics software & services. Prior to his CEO role at Device Authority, Darron was CEO of AppSense, a global software company, where he was responsible for driving the global growth of the company by entering and expanding into new markets, while delivering new and innovative products that are helping companies transform their workspace management initiatives. During his tenure, Darron guided the company to a 270% increase in revenues to more than $100M, expanded the company globally, increased global headcount by more than 300% and helped AppSense raise a $70M investment round from Goldman Sachs. Additionally, Darron led the strategic acquisition of mobile player RAPsphere, a vital component to AppSense's portfolio of workspace solutions.

Prior to AppSense, Darron was CEO of leading Information Security Services company Vistorm, which was acquired by EDS. Previous to this Darron Managing Director of Ultima Business Solutions, an IT & security services company, and a Sales Director at Digital Equipment Company.

James Penney
Chief Technology Officer

Originally a founding-member of Device Authority Ltd, (formerly known as Cryptosoft), James has over 13 years’ experience in both internal and external facing technical roles. James leads the technology strategy and is the technical leader of the business, working closely with the engineering team to improve and develop our IoT security software platform - KeyScaler. James also works closely with a number of key customers and strategic partners to ensure our products fulfil current market requirements, are easy to integrate and use, and meet the IoT security use cases for key industry verticals – IoMT, IIoT, Automotive and Smart Connected Products.

Prior to Cryptosoft, James was the lead technical consultant for a European software reseller responsible for designing and delivering PKI-based data security solutions for variety of customers, including SMBs, government agencies, and multinational corporations.

Rao Cherukuri
Chief Strategy Officer

Rao is a technology innovator, entrepreneur and seasoned executive in Silicon Valley. He founded and led venture-backed IT infrastructure start-ups that delivered award-winning products over the last two decades in Networking, Security and Analytics. He holds five patents in Trusted Computing, Containers and Networking. Rao has also advised, invested in, and served on the boards of several technology start-ups in the areas of Security, IoT and Next-generation application infrastructure.

More recently his focus is on IoT Security and the evolving IoT IAM strategy, including edge computing and fog computing. At Device Authority Rao focuses on the product strategy and strategic partnerships and alliances, many of which are Silicon Valley based.

Peter Cumberland
Financial Controller

Peter is a CIMA qualified accountant specialising in preparing and enabling businesses for further growth and has around 20 years experience within the software and technology industries. At Device Authority Peter is responsible for finance, HR, core commercial systems and facilities. Key areas of focus include robust financial planning, cash generation with keen cost management as well as business process simplification through the implementation of new business management systems.

Before joining Device Authority, Peter was Financial Controller at Fairsail Ltd, a UK-based SaaS business developing and providing an HR/People system on the Salesforce cloud platform. During his 4 years at Fairsail, Peter was responsible for all Financial systems, processes and reporting, and saw the business grow from 30 employees to 300, and Annual Recurring Revenues grow 8 times to almost £20m. Peter was also involved in the acquisition of Fairsail by Sage PLC in March 2017, where he managed the financial integration and ongoing growth of the business into other geographical regions.

Matthew Scherba
Executive Chairman

Matthew has over 25 years of start-up and scale-up experience specialising in working and investing in technology companies across the IoT industry. His experience covers the full company lifecycle development, from start-up to exit, with a focus on strategy and commercial scale. Before joining Tern, he spent five years at a UK venture capital investment company dedicated to the IoT arena. During this time, he helped originate, invest and support the development of disruptive technology companies in the UK, Europe, and the US, and particularly within artificial intelligence (AI) and machine learning. Additionally, he held board positions on several portfolio companies and worked with management teams to help develop their strategic, commercial and operational functions.

Al Sisto
Board Member

Al is a Director of Tern Plc an AIM listed investment company where he serves as an investor and business advisor to private companies including Device Authority. He is also a General Partner of Sixth Bridge L. P., an investment and strategic advisory firm and currently serves as an advisor and on the boards of several leading Enterprise Software and Security companies in Europe and the USA, including Agnitio, iJento and Nok Nok Labs. He also serves as an advisor to Centaur Partners, a leading, boutique technology investment banking firm.

Al was formally Chairman and CEO of Hifn (NASDAQ: HIFN). He repositioned the company through acquisitions and repurposing technology leading to its merger with EXAR. Prior to Hifn, he had a seven-year tenure as Chairman, President and CEO of Phoenix Technologies (NASDAQ: PTEC), a provider of platform-enabling software. As COO of RSA Data Security he focused on strategy, operations and strategic investments to expand the security ecosystem.

Dr. Nicko van Someren
Technical Advisor

Nicko is a technologist and entrepreneur based in Boulder, Colorado. He has more than two decades of experience leading, developing and bringing to market disruptive security technologies. He co-founded two successful start-up technology companies with IPO exits, generating hundreds of millions of dollars in shareholder value. Today, Nicko serves as Absolute Software’s Chief Technology Officer, where he oversees the direction and strategic vision of Absolute’s product security architecture and roadmap. Prior to his role at Absolute, Nicko has served as the Chief Technology Officer of several innovating organisations including nCipher Plc. (now a part of Entrust Datacard), Good Technologies (now a part of BlackBerry) and the Linux Foundation, as well as serving as the Chief Security Architect at Juniper Networks, Inc. Nicko also serves as a board member and advisor for numerous startups and is a mentor for the Techstars accelerator program in Boulder, CO.  He has a PhD from Trinity College, Cambridge and is a fellow of both the Royal Academy of Engineering and British Computer Society.

Ramesh Kesanupalli
Board Member

Based in Silicon Valley, Ramesh Kesanupalli brings over 30 years of Industry experience with over 15 years in cybersecurity.  In 2013, Ramesh co-founded the FIDO (Fast IDentity Online) Alliance, an open industry association with a focused mission: authentication standards to help reduce the world’s over-reliance on passwords. Now recognized as an international standard, FIDO Alliance is based on his foundational patents and he continues to play a key role on the board of FIDO Alliance and its executive committee with an influencing voice on the future direction of the Alliance.

Ramesh also founded Nok Nok Labs, a FIDO Alliance-based market leader in next generation authentication for cloud, mobile and IoT applications. The company’s platform has been deployed to hundreds of millions of users through leading Mobile Network Operators, Fintech, Banking, Healthcare and IoT customers. Nok Nok is trusted by millions of users and by leading Fortune 500 enterprises every day.  Nok Nok Labs’s S3 Authentication suite is recognized as the Best Mobile Authentication and Security Solution by GSMA GLOMO Awards during MWC 2019.

Prior to FIDO and Nok Nok, he was Chief Technology Officer at Validity Sensors Inc, the world's most durable, high performance finger print sensors, where he drove the product, market and partner strategies for the company, which was acquired by Synaptics (NASDAQ: SYNA) for in 2013.  Previously, Ramesh was responsible for product operations along with marketing and business development in his role of SVP and General Manager of Worldwide Product Operations at Phoenix Technologies (NASDAQ:PTEC).

George Apostol
Board Advisor

George is the Vice President, Data Center Initiative, in the Samsung Strategy and Innovation Center, a division of Samsung Electronics. Since May 2013, his objective is to innovate new architectures and apply Samsung’s world-class, market-leading, component technology to the development and implementation of revolutionary next-generation data centers.

Prior to Samsung, he was Executive Vice President, Engineering and Operations and Chief Technology Officer for Exar Corporation; Vice President of Engineering and Chief Technology Officer for PLX Technology Inc; Vice President of Engineering for Audience, Inc; and Vice President of Silicon Engineering for Brecis Communications Corporation.

George has nearly 30 years of experience in the design and management of a variety of complex electronic system products. Prior to Brecis, he held senior design and management positions at Cabletron Systems, RedCreek Communications, TiVo, LSI Logic, Silicon Graphics, Sun Microsystems, and Xerox. With a strong background in system design and ASIC design methodologies, he holds several patents in the areas of system bus interface and buffer management, has shipped multiple system products and systems-on-silicon, and has developed a number of ASIC design productivity tools.

Dan McDuffie
Board Advisor

Dan is a renowned IoT technologist and visionary, bringing a rich and diverse set of business strategy and technology industry experience to Device Authority.

Dan acts as a consultant and advisor to Private Equity, Venture Capital and Strategic investors in the areas of IoT, M2M and Enterprise Mobility. Prior to this Dan was Group CEO of Wyless Inc, a global leader in the M2M and IoT Managed Services market where he achieved increased revenues of nearly 500% over a four year period.

Due to his diverse industry background, in the trenches experience and keen understanding of technology, Dan moves easily between sales powerhouse, technology visionary, strategist, M&A specialist and thought leader. Few Senior Executives have Dan's depth of experience in this rapidly expanding market, and coupled with his remarkable track record of building valuable companies, he is extremely well placed to help Device Authority expand their IoT partnerships.

William Crowell
Board Advisor

William P. Crowell is a Partner at Alsop Louie Partners.  He is also an Independent Consultant specializing in Information Technology, Security and Intelligence Systems.  He is a director at SafeNet, Inc., encryption, data protection and authentication solutions, which is in the process of being acquired by Gemalto.  He is also a director at SAP NS2, a subsidiary of SAP; and Toopher, a multifactor authentication start-up. He is Chairman of the Board of Centripetal, a startup in the rule-based packet gateway and filter area. Until its acquisition by Cisco in June 2007, he was Chairman of Broadware Technologies, a video surveillance software company.  He was also a director at ArcSight, Inc. (ARST), which was acquired by HP in October 2010; Narus, Inc. which was acquired by Boeing in July 2010; Six3 Systems which was acquired by CACI in November 2013, Air Patrol, wireless network security company acquired by Sysorex in May 2014, and Fixmo, Inc., a mobile device security company acquired by Good Technologies in June 2014.

Crowell is an expert on network and information security issues.  In December 2008 Security Magazine selected him as one of the 25 most influential people in the security industry.   In May 2007 he co-authored the book, “Physical and Logical Security Convergence,” published by Elsevier.  He has been quoted in many trade and business publications including the Wall Street Journal, Business Week, USA Today, Information Week, Network World, Computer World, Federal Computer Week, CIO Magazine and the San Jose Mercury News.  Crowell has also appeared on CBS MarketWatch, CNET News, CNBC, and The Charlie Rose Show.  He was the technical advisor to the TV series, “Threat Matrix” during its run on ABC in the 2003 season.