James Ridsdale

Managing Director


James is the founder and managing director of dataJAR and has worked in the Apple space for more than twenty years. His impressive CV means he has gathered vast experience in all corners of his industry, from enterprise to consulting.

Both commercially and technically astute, James has a solid understanding of Apple technology and how to implement it at any scale. Starting his career as as a designer, he has an eye for detail and it was this love of design that initially led him to the Apple platform.

Previously managing teams of engineers for former employers, he turned his hand to his own business in 2013. Since the conception of dataJAR, James has successfully and steadily grown the business thanks to the talented team he surrounds himself with.

James’s other huge passion is music. In the Nineties and Naughties, you would find him knee-deep in vinyl at clubs such as The Cross and Ocean Rooms. Running and promoting his own regular nights, James has a deep love of house music. When not in the office, head in spreadsheets or deep in code, he is most likely to be behind his beloved turntables, reliving his youth.


Mark Tsuchihashi

Sales Director

Mark has been in sales for over 20 years and is now Sales Director at dataJAR. He is responsible for key relationships, account managed customers and also new business. He’s passionate about Apple and the customer journey.


Ben Toms

Technical Director

Ben joined dataJAR in 2015 as a Systems Engineer and was promoted to Technical Director in 2017.

He’s been tinkering with Macs for 15 years, from OS 9 in music studios through to administering enterprise Mac and mobile environments.

Throughout his career he’s leveraged the brain trust that is the Apple Admin community, also founded London Apple Admins and have given back via his blog (, the blog with the tag line: “Doing the donkey work, to make you look like a smart ass!”

He’s been awarded a Deanship at the JAMF Nation User Conference (JNUC) for his contributions to the JAMF Nation community.

He is an admin for on Slack and have released a few open source projects such as AutoCasperNBI and AutoImagrNBI, as well as becoming the maintainer of ADPassMon.


Richard Mallion

Systems Engineer

Richard Mallion has worked in the IT industry for many years and eats, sleeps and breathes Apple. He began his tech journey as a junior developer and later moved into a support role specialising in integrating Macs into PC networks. During this time he had the privilege of working for a number of high profile Apple centres in London.

Before joining dataJAR earlier this year, Richard had been Soho based for the past two decades, working for Amsys, the go-to organisation for Apple training in the UK.

Richard is an authorised Apple trainer, having gained the Apple Master Training certificate and also delivers the CCT course for Jamf.


Madeleine Cordrey-Jones

Operations Manager

As dataJAR’s operations manager, Maddy brings quality assurance, analysis, strategy and management skills, all of which compliment the extensive technical abilities already in existence within the team.

Prior to joining the company, Maddy single-handedly set up and established two businesses in the catering industry. She acquired further skills during her time working in aerospace engineering and information management.

Outside of work, Maddy is currently studying a part time degree in economics with the Open University. She is also a keen traveller and has been involved in helping develop small businesses in Africa.


Chris Tomsett

Business Development Manager

Chris began his Apple journey by introducing iPad solutions to both education and commercial customers. He delivered the first Apple Free School in 2010 and has been heavily involved in the roll-out of numerous, large scale one-to-ones throughout his career.

He also has three years’ experience selling public and private cloud-hosted solutions and services to commercial, media and government customers.

Chris brings to dataJAR a sound knowledge of business and sales strategy, complimenting our team perfectly.

Aside from his exceptional sales skills, Chris has produced music for almost two decades and his passion for DJing has taken him around the world.


Darren Wallace

Systems Engineer

Darren has been tinkering with Macs on a professional level for more than 12 years. He started as a fresh-faced hardware repair trainee and has fond memories of iBook G4 Logic Board repairs! Over the years, he progressed on to executive relations and eventually consultancy.

In the latter part of his career, he worked with directors at Amsys (now Moof IT) to expand and develop their professional services department, delivering and managing technical projects.

He saw through the entire project from initial discussions, to technical planning and delivery, as well as long term support.

Along with Ben Toms (Technical Director) and other pillars of the Apple community, Darren helps to run London Apple Admins, and is keen to share his technical knowledge through a range of blogs.

During downtime, he is your typical geek and can be found with his head in books, both of the comic and traditional variety, video games and television shows.

When he does venture out, you’ll find him happy in his local, ale in hand.


Felix Grant

Marketing Content Specialist

As a marketing content specialist, Felix is tasked with dataJAR’s industry presence and online media.

He has been creating exciting and engaging marketing content for more than three years. Before his current role, Felix worked for a video production agency designing marketing campaigns for international brands such as Trivago and Royal Enfield.

He also lived the dream for a few months travelling around Australia and Bali, soaking up the culture and the sun in equal measures. A highlight of his trip was driving through winding dirt tracks to reach a stunning remote beach just outside of Byron Bay. It was definitely worth the damage to the rental car!

Outside of work Felix enjoys festivals, the driving range and a decent pub. A pint of Pravha is his preferred tipple if you are buying.