Our UV Team Ready to Help


John Ryan

John Ryan
Managing Director

A Chartered Chemical Engineer and MBA and over 30 years in water treatment John joined Hanovia in 2008. With international experience in water quality management, system integration, and contract execution across many market sectors John has a close understanding of what customer’s need from their UV and the support that follows it.


Mathew Allen

Mathew Allen
Finance Director

Mat joined us in 2016 as Finance Director and has successfully overseen the integration of our three companies, working hard to build a shared culture and set of ideals. In his current role he is responsible for the Finance, IT and administrative functions of the group. Mat has accumulated a great deal of expertise in a relatively short career in finance, driving growth and evolution in UK and US listed manufacturing and technology companies. He has also worked in professional services in London for a major accounting firm in both Management Consultancy and Assurance.


Alex Langston

Alex Langston
Operations Director

Alex joined Hanovia in 2010 and has worked in several positions within the business, being promoted to Operations Director in 2016.

He is a specialist in manufacturing operations, with extensive experience across the UK, China and Australia. Alex achieved his MBA with distinction from Henley Business School and holds a Batchelors degree from University of Plymouth.


Paul Ropic
Technical Director

Paul is the Technical Director for the Hanovia, Berson & Aquionics UV companies and has worked in the Water industry for 30 years with the last 20 in UV specifically. He is a member of the Institution of Engineering and Technology and Chartered Engineer and a board member of the IUVA.


Ken Kershner

Ken Kershner
Regional Director – Americas

Ken has worked with ultraviolet technology for over 18 years. He currently serves as the Regional Director-Americas for Aquionics focusing on application optimized UV in the aquatic, industrial and municipal markets.

Ken holds a Bachelors’ Degree from the three time National Champions in college football Clemson University. He serves on a number of industry committees, including the International Ultraviolet Association’s Manufacturer’s Council, Water & Environment Federation’s Disinfection and Public Health Committee and Advanced Water Ttreatment Disinfection Committee.


John van Miert

John van Miert
Regional Director EMEA

Broad experience in different functions for small and international companies.

Always looking for the best solutions for the customer and the company with a long term term goal : long relations WeUvCare.


Helen Zhang

Helen Zhang
Regional Director, Asia Pacific

Helen Zhang has a Master degree in Project Management from Tongji University and a Doctoral degree in Business Admin (DBA) from Business school Netherlands. She has been engaged in environmental protection water treatment industry projects and related products sales and sales team management for many years. She has been focusing on the UV business for more than 10 years and now is Regional Director of Asia Pacific.