About JM Osborne

About Us

We were established in 1991 and have since grown to be the largest specialist firm of its type in the UK.
We have a strong work ethic and strive to provide our clients with a high standard of personal service – not something readily available in large, multi-disciplinary firms with hundreds of staff spread over many offices.

As we have been involved in our own Sporting and Professional businesses since 1972, we are uniquely able to offer advice that is practical and not just theoretical – a very rare commodity in this day and age. We literally have been there and done that; sometimes successfully, sometimes less so. Our clients are therefore able to use the benefit of our experience.

We work for a significant number of clients in the private sector who feel comfortable working with a small firm able to deliver a high quality personal service.


Mark Osborne


Mark Osborne is founder and Managing Director of JM Osborne Rural & Sporting and has been a qualified Chartered Surveyor and Land Agent for over 40 years. He trained on two large traditional landed Estates (Chatsworth and Castle Ashby), before becoming a Partner in a well respected regional firm.

Mark is a Fellow of The Royal Institution of Chartered Surveyors, a Fellow of the Central Association of Agricultural Valuers and a Member of the Academy of Expert Witnesses. He undertakes a significant amount of Expert Witness work, including Court appearances.

Since 1988 he has been involved in the setting up and running of several leisure and sporting businesses including the EJ Churchill Group, a squash, health and leisure club, hotel, public house and more recently the acquisition and development of William Powell and William Powell Sporting Limited.

In 2014, he was appointed acting Chief Executive of the Castle Howard Estate in Yorkshire to oversee certain changes to that historic Estate and to help make plans for it going forwards.

His main interests are complex Rural Professional and Sporting related work.


Will Robinson

BSc (Hons), MSc

Will grew up in rural Northamptonshire and has been passionate about country sports from an early age. Prior to attending Lancaster University, Will worked on a number of Estates and at R&K Stockcraft in Milton Keynes. Having finished an undergraduate degree in Geography, Will moved to the Royal Agricultural College in 2011 to complete a Masters Degree in Rural Land Management. Will joined JM Osborne in 2012 as a Graduate Land Agent before becoming a Director of JM Osborne Rural & Sporting in April 2020.

Will specialises in holistic Rural & Sporting Property Management for private clients and has an excellent understanding of fully integrated Estate management systems. Will is heavily involved in the management of some of both England and Scotland’s finest Sporting Estates, where he works closely with Owners, Directors, Estate teams and regulatory bodies on a daily basis.

Will works with the JM Osborne team on regulatory changes within the rural world, helping put the firm in a unique position of creating their own systems to actively and successfully manage regulatory changes. Will’s work extends beyond Sporting Estates, as he has been involved in numerous professional managements including significant consultancy work at Castle Howard.

Will also manages the Gunroom at William Powell, leading the product development, production and marketing of their guns.


Will Southall

BA (Hons), MSc

Will was brought up on the edge of the Yorkshire Dales and, from an early age, has had a passion for the rural environment and country sports. He obtained a Bachelors from Newcastle University and a Masters Degree in Rural Estate and Land Management at Harper Adams University. Having worked for the business since 2014, Will became a Director in April 2020.

With a keen eye for detail, Will is responsible for the management and delivery of a wide range of professional and Estate management projects. He has a detailed understanding of Estate management systems and has experience of delivering complex projects within strict timescales, and budget allocations. His client base ranges from the south coast to the Highlands of Scotland and on a day to day basis Will is involved in dealing with a wide range of stakeholders including Estate and property owners, employees and Government organisations. Will invests time in getting to know the people as well as the project, which helps him build a holistic picture of each individual client’s needs, preferences and long term desires.

Will also manages the development of William Powell Sporting, a unique Sporting Agency, offering exclusive sporting opportunities worldwide.

Outside of the office, Will can often be found trying to perfect his fly fishing technique whilst willing Middlesbrough FC to three points.


"Osborne’s ability to choose and motivate the right people is key to his success as the country’s foremost sporting advisor"

Lord James Percy

5/ 5 stars

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