We are members of the Institute of Chartered Accountants in England and Wales. Our specialists have experience transforming the fortunes of owner-managed businesses by preparing them for sustainable growth. Whether you need immediate help or are looking for more efficient ways to manage tax in the longer term, Sigma will first understand what you’re trying to achieve and then recommend practical measures to help you take control of your tax. Our specialists have extensive experience managing the taxation affairs of clients ranging in size from individuals, all the way up to the NHS.