Management Team



Mike Levenstein, Chief Operating Officer, Synpart Limited
Mike joined Synpart Limited (formerly Westone Products Limited) in 1996 as Chief Operating Officer and subsequently became a director. He has been instrumental in spearheading the FPL joint venture operation in China and in developing the US distribution channels. Mike is the key in managing the relationship with the FPL joint venture partners, and spends significant amounts of his time based in China. Prior to his involvement with Synpart, Mike organised an MBO of a Christmas decorations manufacturing business where he had been employed since 1981. Prior to this, he worked for Pentland Industries where at the time of leaving, he was Managing Director of the distribution division.

John Rifkin, Financial Controller
John joined Synpart Limited (formerly Westone Products Limited) in 1985 and is responsible for Synpart’s finance, management accounting and administration services. In addition to maintaining financial control of Synpart Ltd, John is also responsible for the financial control of the FPL facility. 

Julie Hall, Director of Sales, Synpart Limited
Julie joined the team at Synpart Limited (formerly Westone Products Ltd) in 2005 from Wisdom Toothbrushes Ltd where, for the previous 10 years she had been instrumental in developing both the Wisdom brand and private label business in the UK and international markets. With a BSc Degree in Marketing Julie also has a very strong commercial background with over 15 years of experience in the Health & Beauty sector. As Director of Sales of Synpart Ltd, Julie will continue to lead the Product Development team and the Sales team into new global business opportunities.

Dennis Aston, R&D/QA Manager, Synpart Limited
Dennis was originally employed as QA Manager in 1996 to oversee Synpart Limited’s (formerly Westone Products Ltd) UK operations. During this employment Dennis has also taken on the Research and Development mantle overseeing Synpart’s global manufacturing facilities. He previously worked for 24 years in the pharmaceutical industry as a Development Scientist with Beecham Pharmaceuticals which is now Glaxo SmithKline.

Helmut W. Schlieper, Chief Executive Director, Synpart AG
Born in Bonn, Germany and graduated in Industrial Management. Founder of Synpart AG having previously worked for 12 years initially for Schiffer GmbH as Global Marketing and Export Manager and subsequently for Coronet GmbH, also a toothbrush manufacturer, in General Manager roles. Prior to this, and before a two year spell in Marbert (cosmetics) as Export Manager, he worked in the pharmaceutical industry for Gruenenthal for 2 years and for Boehringer Ingelheim GmbH for 10 years in General Management, selling and management training roles.


Stefan Panne, Managing Director, Synpart AG
Stefan joined Synpart AG in May 2009. As a graduate in Business Management he started his career 1996 with Seidel GmbH, a leading manufacturer of premium cosmetic packaging, by setting up and running the US sales division based in New York City as Manager- and Director Customer Relations. Stefan entered  the Oral Care business in 2000 as Director Marketing & Sales Private Label at M+C Schiffer GmbH and brings extensive market knowledge and valuable experience to the Synpart team.

Gerd Bröcker, Technical Director, Synpart AG
Born in Anhausen, Germany, Gerd is a graduated Mechanic Engineer. He specialised in injection moulding and process development. Gerd joined Synpart in 2004 having previously worked for Coronet for 3 years. Prior to this Gerd worked for Schiffer for 17 years. In both companies he had technical and development responsibilities.