Accountants For All Your Business and Personal Tax Needs

Modern Thinking Traditional Values

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Working With Individuals and Businesses

Helping you to be more tax efficient

About You

We tailor our services to meet your needs in order to create a long-lasting relationship that you can rely on.

Our Team

Our friendly team has the expertise to offer you personal and business financial advice and support.


We offer bespoke tax and accountancy solutions for individuals and small to medium-sized businesses

How We Work

At Newnham & Son, we tailor our services to each and every one of your business and individual needs. We provide a bespoke and personal service to our clients, offering regular reviews, reports, financial advice, and more to ensure that all your requirements are met.

We leverage the latest technologies and are continually reviewing ways in which we can support you and your business more efficiently. That said, our core family values remain at the heart of what we do in providing exceptional support through our relationship with you.


Happy Clients

  • Roger and Ed have guided us through the financial maze with great dexterity and all along charging us competitive rates for a very personal service.

    We can sincerely say that it is a pleasure to have such competent and pleasant people as our accountants.

    David Durnford-Slater | Director | DBS Offshore Ltd.
  • I am confident that Newnham & Son will provide the accessible, friendly, customer-driven expertise that has benefited me since Roger Newnham became my tax and accountancy advisor in 1979.

    Dr. John Symons
  • I was recommended Newnham & Son through a mutual contact when I first started as a sole trader a few years ago. From being a sole trader through to starting a new company, they have been able to advise and help with whatever queries I had. I have always found Edward and his team very professional.

    James Kerry | Co Founder & Director
  • Newnham and Son have been with us every step of the way, from registering us with Companies house, scaling the team and through several complex fundraising rounds. 24/7 there is a friendly and knowledgeable voice at the end of a phone, happy to do just about anything to help.  We couldn’t recommend them more.

    Freddy Macnamara | Founder | Cuvva Ltd
  • Newnham & Son, in particular Ed, supported our company as it grew from being a start-up to a successful mature business.  Along the way the service provided was excellent, with a personal service and a fast turnaround to any questions we had. I would not hesitate to recommend Newnham & Son to any business seeking a trusted accountancy advisor – we consider them to be a partner in our business success and an outsourced financial function.

    Melanie Redding | Director & Co_Founder | JuMelia ltd

Get in touch


01730 239645

Where we are:

School Master's House | 39, College Street | Petersfield | Hampshire | GU31 4AG

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