Fiduciaire AD Sàrl in Crissier is a professional Swiss accounting and fiduciary firm specializing in accounting , tax services , business management , company formation , and administrative support for SMEs, entrepreneurs and private individuals . Located in Crissier , in the Lausanne West area , our Vaud-based fiduciary puts its multidisciplinary expertise at the service of your financial performance . A local fiduciary focused on performance At Fiduciaire AD Sàrl , we provide our fiduciary expertise , accounting know-how and tax advisory services to help improve and secure your business performance . Our approach is based on active listening , availability , and creative, tailor-made solutions . Our core values • Client-focused listening and personalized advice • Availability , responsiveness , and flexibility • Professionalism , efficiency , and accounting accuracy • Multidisciplinary skills in accounting , taxation , payroll , and administration • Compliance with Swiss regulations and strict confidentiality • Long-term, trust-based client relationships Our fiduciary services • General and analytical accounting • Tax returns for individuals and companies • Swiss taxation and tax optimization • Payroll management and social charges • Company formation and administrative support • Financial and business consulting • Fiduciary services for SMEs and startups Your fiduciary partner in Crissier & Lausanne West Based in Crissier , Fiduciaire AD Sàrl supports clients throughout the canton of Vaud , including Lausanne , Renens , Bussigny , and Écublens , offering reliable, human-centered fiduciary services .