Meet The Greenfrog Team

Marcus Rhodes

Managing Director

After leaving IBM Marcus was Business Manager at the family engineering firm Rhodes Group and spent much of his time supporting and growing the I.T. systems there. In 2003 the Rhodes Group I.T. department was rebranded as Greenfrog Computing and setup as a limited company with Marcus at the helm.

At the same time as setting up this new venture, Marcus had twin girls and found dealing with a new company to be much the same as dealing with new children (except the company didn’t need nappy changing) Marcus finds the I.T. industry a great place to work, spends most of his free time reading I.T. journals (sad…).  He finds his degree in Mechanical Engineering to be of occasional use (particularly when writing Bespoke Databases for Engineering companies).

Peter Rhodes

Sales Director

Peter has spent a lifetime developing businesses and knows how essential customer satisfaction is to the future of Greenfrog. As Chairman of the family engineering business (until it was sold in 2004) he saw it grow from an eight-men organisation through to one employing over one hundred men with a turnover exceeding £10 million per annum at its peak.

Applying his experience in Sales & Marketing to help Greenfrog grow its customer base and expand its services is therefore something he very much enjoys (whilst still retaining Directorships/Managerial roles in several other family companies). Peter believes that every client should want Greenfrog as an integral part of their organisation, helping to advance their success. There is nothing better than references from existing clients and you are invited to request a visit from Greenfrog so that we can demonstrate how we can work successfully as your Virtual I.T. Management Organisation.

Phil Booker

IT Consultant

Phil has worked in IT for many years and joined our team to further his skills, along with studying for a degree.  He heads up our help desk and also performs our Search Engine Optimisation service together with web site construction.  His chatty style aims to leave all customers happy and content with their setup.

Phil’s ambition is to grow his current four screen setup into one Air Traffic Control would be proud of!

A self-confessed tea-fanatic, the Greenfrog Tea Caddy never knew what hit it!!!

Shannon Pienaar

Senior IT Consultant

Having switched careers from metallurgy, Shannon started his IT path in the financial sector with Shroders investment bank. He then moved into the insurance sector as a network engineer looking after end to end networking and infrastructure in for a large insurance underwriter.  He joined Greenfrog in early 2019.

Shannon always has our customer’s best interests at heart.  He is happiest in a server room or data centre and occasionally sees the light of day performing on-site support for our customers.


Nicola Mainiero


Having graduated from Liverpool University, Nicola worked in auditing for a number of years in Manchester and Chesterfield. She then became assistant accountant for a major car dealership, where she worked for over 10 years.
After this, she took a break from accounts to spend some time looking after her two children, while helping with her husband’s Italian Food and Wine import business.
With her children now grown up, she decided it was time to get back to accounts again and joined the Greenfrog team in early 2021.