Group Directors & Sales/Marketing

Lenstec Optical Group has an established position in the optical world and offers a wealth of experience within the optical industry.

The Lenstec Optical Group director and upper management team consists of:

Nigel Castle – Managing Director

40 years within the Optical industry has accumulated a wealth of knowledge in Sales and Production, Nigel has successfully grown and developed Lenstec since the early years with just three employees in 1987. Tant Laboratories joined the Group in 2010 and Rawdon Optical in 2014. Leading from the front Nigel provides hands on support in all key areas of the business.

Gez Donovan – Finance Director

Formerly MD of Tant Laboratories and now strengthening the Lenstec Optical Group board since 2010. Chartered Certified Accountant (FCCA), 20 years senior finance and operational management roles in manufacturing, retail and financial services.

David Ackerman ACCA – Group Financial Controller

Qualified accountant (Association of Chartered Certified Accountants) with many years of finance experience within manufacturing, financial and professional services.

Sales and Marketing Team


Matthew Maguire – Sales Manager Wales and the West

Matthew has a wealth of knowledge in the Lenstec production system and previously held the post of Lens Production Manager for 8 years before developing his role as Sales Manager.


Ian Rosie – Sales Manager Midlands & South

Ian has been in optics since leaving school and obtained his SMCTech whilst working in the retail sector, before beginning a 14 year career at Sinclair Optical. Prior to joining the Lenstec Optical Group Sales Team he held a UK Sales Manager position at The Norville Group.


Craig Sandvig – Area Sales Manager

Since starting as a glazing technician in 1990, for an independent optician in Lancashire, Craig has gained a huge amount of practice experience and industry product knowledge. Working his way up to glazing manager and through to dispensing and practice management with independent opticians has given him a great insight into practice life. During his 8 years with Sinclair Optical he’s acquiring great experience within sales in the manufacturing side of optics which he also brings to Rawdon and their customers.


Joanne Adam – Marketing Manager

Jo joined the Tant team in 2002 after working in optical practice for over 15 years, and now handles all marketing projects for the Lenstec Optical Group.