Caasta Ltd (11808062) is part of the Green Bison group (04596559) established in 2002, today we are proud to state that we have funded well over 40,000 vehicles worth over £100,000,000.00, to our very satisfied customers across the UK.

Green Bison is an Independent Vehicle Leasing Broker offering finance packages from the UKs leading providers; with direct relationships to the leading funders, you can be assured that you will be offered the most competitive rates available in the marketplace. We operate a no pressure sales environment. We are not a hard sell business, so you can rest assured that when we speak to you, you will not be pressured into taking a deal at any cost. We believe our price and proven exemplary service speak for themselves. Green Bison is a Leasing Broker Member of the British Vehicle Rental & Leasing Association (BVRLA) and a member of the Leasing Broker Federation, Green Bison Limited is Authorised by the Financial Conduct Authority (FCA). Green Bison Limited is an equal opportunities employer, we pride ourselves in supporting the local community through sponsorships and charitable works.

The Team

CAASTA has brought together a wealth of experience to help reshape people’s approach to accessing a vehicle. We at CAASTA firmly believe that tomorrow’s approach to car ownership and usage begins today. We are here to make a more flexible service available to our customers. To improve the customer experience by make it simple and transparent. By utilising technology, we hope to make our customers' lives easier. With a team of vast experience in delivery, across many sectors, we hope to drive this company’s ideals to enable our customers to enjoy, manage and benefit from using our service.

Keir Jones

Green Bison Group

Group Managing Director

Keir has worked in the car leasing and Fleet Management industry for the past 25 years and is currently the MD of GB Car Leasing where he provides fleet management services and has provided over 40,000 vehicles to very satisfied customers. He has recently been asked to contribute to Parliamentary Review 2019 on best practice in the industry.

Michael Minahan


Chief Executive Officer

Mike was the Director of  Sales and Service for  motor services giant RAC for 4 years and was part of the senior management team that sold the business for £2 billion , Prior to that he spent 8 years working at Professional Services and Business Processing group Capita, as the Operations Director for two of their largest contracts TVL and London Congestion Charging, culminating in his role as COO of it’s Insurance Division. Mike has been an FCA approved person for the past 8 years

Tim Perkins


Chief Technical Officer

Tim has 27 years’ experience working in the IT industry, delivering unique and large-scale projects, both in the public and private sector. An evangelist for digitalisation of business processes. Tim created Capita’s information practice, building landmark solutions for innovative projects such as the London Congestion Charge and a number of digital solutions within the government’s secure sector.