You are here

Share this page on Twitter

Share this page on Facebook

Share this page on LinkedIn

Share this page by email



 Google +1






Management team

Management team


Lionel Chmilewsky - Chief Executive Officer

Lionel Chmilewsky
Chief Executive Officer

Lionel has more than 25 years of experience in the technology field and has been part of the wireless industry since the early 90s. Most recently Lionel was CEO of Comverse IP Communications and Senior Vice President of Comverse Group. Prior joining Comverse, he was Executive Vice-President of Proxim Wireless, leading Worldwide Sales and subsidiaries.

Lionel's background also includes General Management and Senior Executive roles in Alcatel, JDS Uniphase, EXFO and Fairchild in the USA. Lionel is a French national and earned an MBA from NEOMA (Rouen Business School).


Darren Taylor - Chief Financial Officer

Darren Taylor
Chief Financial Officer

Darren is a Chartered Management Accountant with over 25 years' senior finance experience gained in multinational roles predominately in the IT industry.

Most recently Darren was CFO of the Neverfail Group and prior to that worked with Prince Sports, Caminus Corp and the Financial Times Group where he spent several years in Hong Kong. Prior to becoming an accountant Darren trained as a programmer.


Dr John Naylon - Chief Technology Officer

Dr John Naylon
Chief Technology Officer

John co-founded CBNL in the year 2000 and managed all research and development activity until 2011. He is currently responsible for CBNL’s strategic technology direction as well as overseeing the company’s industrial liaison, thought leadership and intellectual property activities.

Before starting CBNL, John co-founded the pioneering wireless company Adaptive Broadband and held a research position at AT&T Laboratories Cambridge. John has a PhD in Computer Science from the University of Cambridge and over 20 years’ experience designing cutting edge wireless technology.


Mark Ashford
Vice President, Global Sales and Business Development

Mark Ashford has more than 20 years of experience in the wireless industry, gained in a range of multinational commercial, technical and strategic roles.

Before joining CBNL, Mark worked for both for AT&T/Lucent Technologies for 12 years as well as for Apertio, where he supported the successful sale and integration of the company in Nokia.


Mark Hanman, Vice President, R&D and Operations

Mark Hanman
Vice President, R&D and Operations

CBNL’s Director of Engineering for over 5 years, Mark joined the company in 2007. Previously Mark worked for Amino Comms in Hong Kong & in product development for Linux Printing, Option Wireless & Philips Consumer



Sarah Gowing
General Counsel, Company Secretary and HR Director

Since leaving private practice in 2000, Sarah has combined her legal knowledge with wide-ranging business experience from start-ups to listed entities, and has a strong commercial and corporate background.

Prior to joining CBNL in 2010, she was Company Secretary to Acambis plc and Assistant Company Secretary to Vectura plc. Sarah holds an LLB (Hons) Degree from University College London and is a Solicitor of the Supreme Court of England and Wales.