About us

Griffiths Marshall Wealth Management formed in 2020 when two like-minded, long-standing and locally respected professional advice firms joined forces to better serve their clients.

These two firms, Griffiths Marshall and Prosser Knowles, provide a synergised approach to all things finance with their combined expert knowledge of accounting and financial advice.

Griffiths Marshall are a team of Business Advisers and Chartered Accountants in Gloucestershire, covering all aspects of assurance, advisory, tax and probate. We act for a wide range of clients from sole traders to multimillion-pound groups, working alongside clients to achieve business and financial freedom.

Prosser Knowles Associates is an established independent financial planning and wealth management company, with satisfied personal and business clients across the UK. Founded in 1987, the company provides independent financial advice and support to private individuals, trustees and businesses from its offices located in Worcestershire and Gloucestershire.

This collaborative approach between the two companies means our clients receive access to all aspects of business and financial advice, in a streamlined and efficient manner, ensuring their financial plan is unique to their individual financial circumstances and requirements.

Helping you to identify, achieve and protect your desired lifestyle

We work with individuals and businesses to provide advice in the following areas among others:


Retirement & pension planning

Inheritance Tax, trust & estate planning

Offshore investments

Life assurance

Mortgages & equity release

Long-term care

Hear from our clients

I have been a traditional cash saver for a number of years. With returns being so low I wanted to do something different and was introduced to Jon Bissett who was extremely helpful in explaining my options to me in a really clear and transparent way. He gave me the confidence and information to enable me to make an informed choice and has helped me set up a stocks and shares ISA. The process was very smooth and Jon was on hand throughout to guide me through the process. I received a very helpful, friendly and professional service.

Mr B.

A client since February 2021

My wife and myself were introduced to Jon Bissett, as we needed some advice on pensions. Jon has been a great help on a personal level, giving advice and setting up directors pensions for us. Having Ian Price, our Accountant, at one of the meetings made the whole process seamless. Jon has also advised us on life cover and I am now speaking to him about buy to lets. He is friendly and professional and I have recommended him to other members of my family.

Mr and Mrs T.

Clients since February 2021

“I was introduced to Vanessa as I wanted some advice on pension and investment planning. Vanessa took the time to understand my objectives and explained everything to me in a very clear and professional way. Vanessa is so easy to talk to that I have now introduced my partner to her who usually hates stuff like this! We look forward to developing a long-term relationship with her, especially as she has shown herself to be really conscientious and trustworthy.”

Ms L.

A client since May 2021

Get in touch

Send us a message and a member of our team will respond to your query.