Fortis Accountants

Fortis Accountants is a Chartered Certified accountancy firm based in Hammersmith & Fulham, London, founded by Harry Theocharous and registered with the Association of Chartered Certified Accountants (ACCA). The practice provides professional accounting, tax, and business advisory services to both individuals and corporate clients, with a focus on delivering personalised support that helps clients interpret financial information clearly and use it to drive better decisions. The firm goes beyond basic compliance work — such as bookkeeping, payroll, VAT and tax returns — by offering strategic guidance aimed at improving financial systems, tax planning, and overall business performance. Fortis Accountants also supports clients with management accounting, budgeting and forecasting, business planning, mergers and acquisitions advice, and other tailored financial services. Known for its approachable, relationship-driven service, Fortis Accountants works to understand each client’s business goals and provide proactive, commercially relevant advice. The practice offers free initial consultations and serves clients throughout London, helping both sole traders and limited companies to stay HMRC-compliant and financially organised while planning for future growth.