Onyx Accounting and Management Ltd is managed by qualified Chartered Professional Accountants (CPAs) with almost 20 years of experience, as well as,  being associated with the Association of Chartered Certified Accountants (ACCA). We offer services to clients in both the UK and Canada.

We have experience in various industries such as public relations, web and eCommerce development, filming, social and digital, recruitment, hotels, medical research, media advertising and many more. We work flexibly with our clients to suit their schedules and adopt policies within their business so that the finance team fall in line with the culture of their company.

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We are a team of professionals who are able to oversee the whole financial life cycle of your business. As a client, our advice does not stop here, we are able to provide you with connections to assist with an array of finance and personal protection needs: such as business loans, financing, insurance, mortgages and also advice on HR setup and payroll. It is important that businesses evolve with the times, we have the experience with various software systems which we can recommend to best fit and benefit, your business. We have the knowledge of implementing various market leading software packages such as: Sage, Xero, Quickbooks, Wagepoint, Receiptbank, Expensify, Futurli, Clockify and others.


”I have worked with Amanda for many years now and she provides an excellent financial service for all the companies that I have introduced her to. In addition to being a top class accountant she is also very strategic, commercial, direct, efficient and much liked by all the team. I could not recommend her more highly’’

Alastair Gornall

Chairman/NED to a portfolio media, communications and events businesses

“Onyx accounting has been amazing to work with. Amanda and her team have been able to straighten out our business and give us amazing advice on how to scale and improve our financial processes. I am very happy to recommend them to anyone who is looking for accounting services. You can’t ask for better!”

Damiano Raveenthiran

Founder, CEO of Startup Slang Inc.

“Amanda has worked with Byfield Consultancy for over 8 years and has been instrumental in helping us to grow the business through effective financial management support. Her role has progressed beyond finance and she also now manages and oversees our outsourced HR function. Amanda’s work is to a very high standard and she is very organized, diligent and always delivers on time. Above all, Amanda always goes the extra mile and is a pleasure to work with. I would recommend Amanda to any company who needs help with organizing their finances and running their business more effectively.”

Gus Sellitto

Managing Director, Byfield Consultancy Ltd.