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About us

Since 1995, we’ve been providing A1 accountancy services to our clients, steered by our watertight values and principles.



With three comprehensive packages and a number of add-ons, we can equip you with everything you need to help you ride the waves of contracting.



Whatever you’re searching for, our scope of industry knowledge and resources can help.

Vantage – Online Accountancy Software


The dashboard provides you with an instant real-time financial picture of your business which can be viewed down to the level of each transaction making up a balance.

Cloud Based

Our cloud based platform gives you 24/7 access to your finances at your fingertips – at any time, and from anywhere in the world with an internet connection.


Vantage has been designed specifically for contractors with little to no accountancy knowledge, it is free of any jargon and the clear intuitive layout makes it easy to use for a novice.


IR35 Compliant

Irrespective of whether you are caught or exempt from IR35, you can use Vantage.


Create professional invoices in a few simple clicks.


SSL encryption and remote data backup to ensure that your information remains completely safe at all times.


Trial Vantage for free

To get the process started, just fill out the form below and we’ll be in touch.

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One of our main focuses is consistently exceeding expectations. We work hard to achieve this, and we’re honoured our clients agree by rating us as one of the Top 5 Rated Accounting Firms on Trustpilot.

See our 709 reviews on Trustpilot

Thank you Nixon Williams

I’ve just started my limited company in Feb 2021 and having reviewed a number of suppliers choose Nixon Williams (as my accountancy provider) as they had competitive pricing, good communication and were well experienced.

13th April, 2021

Good timely accounting service

Good timely accounting service!

8th April, 2021

Great accountancy firm

I have had a good experience with Nixon Williams. Great communication and helpful with any queries. The accounting dashboard is easy to use and I have recommended them to others.

8th April, 2021

Great Service and Support

I found Matt, my accountant, to be both knowledgeable & supportive. His most recent guidance enabled me to both reduce my costs and increase my revenue, key goals for any business! He responds swiftly to my emails and keeps it simple.

7th April, 2021

Great service

I have been with Nixon Williams since 2013 and I am been very happy with the service. Melissa has always responded and actioned anything I have asked for in a quick, and efficient manner. I would highly recommend.

12th March, 2021

Accountants of choice

I’ve used Nixon Williams on and off since 2012, with managing the affairs of two companies (and a recent liquidation). I cannot recommend the team highly enough…

11th March, 2021