About Us

Nita van grinsven

A creative and strategic thinker – coupled with firm commercial background – Nita van Grinsven started her career with PwC in Internal Auditing in South Africa before moving to Financial Auditing in Auckland where she completed her Chartered Accountant qualification.

During her career Nita focused on business controls and management reporting gaining exposure to many industries and businesses. This has served her well working in the insurance, wine and timber industry where she worked in finance leadership roles. 

Nita joined the Marlborough Chamber of Commerce Board a few years ago as an opportunity to get more involved in the community, and within a year was elected President. She has a passion to help support the businesses and the region to be more successful.

With her keen interest in numbers, technology and helping businesses she has taken the leap to run her own business and lend her skill set to companies small and large, ensuring they get the most productivity out of their business systems and processes.


Nita van Grinsven
Mark craig

A self-confessed Geek, Mark has been working right at the coal face of IT in Blenheim. During that time he has worked with Businesses, Schools and Government Departments.

He was responsible for designing the solution used to migrate New Zealand Schools from the server room to fully within the cloud. That model is still being used in School migrations today.

A love of all things automated, Mark loves the challenge of working out simple effective automated processes for any business, particularly with repetitive tasks. 

One of his key strengths is adapting to change within the IT world. As a keen lifelong learner, he is happiest when new technology is released that he has to learn and then out it into practice within the Business environment. 

Mark prides himself in his customer service and still gets a kick when he helps someone with an IT issue and gets it fixed!

A man of simple needs, all he wants is a self driving car, his robot lawnmower and an Alexa device and he will be a very happy man.

Other services


IT Network in infrastructure attacks are expensive. Is your business safe from the threat of Cyber Attack

End User Training

At BI Mechanics we believe that everyone should be a power user of their PC. We can help create a training plan for you.

Data Backup

One simple question…How much is YOUR data worth to you? A comprehensive backup plan is paramount!

Website Development

Every business needs a website, it is a great marketing tool but it can get expensive. why not pay it monthly?