TCS Lydia (A member of TCS Global) provides tax services (Tax management and accounting, transfer pricing, legal services), audit & assurance services (Independent auditing, IFRS reporting, financial risk management), IT services (e.g. Information security, IT audit and compliance, IT training) and training for companies (e.g. IFRS trainings). TCS Lydia’s core values are being self-sufficient through updating professional knowledge, sharing professional knowledge with your teammates and clients and take risks for yourself and not for your clients. The unique aspects of the firm is that TCS Lydia is always rendering services with experienced staff, providing a prompt reply to all the services they offer and rendering quality service first, later sustaining it. TCS Lydia’s aim in client relations is to provide reliability and responsibility to its clients. TCS Lydia is employing ten workers excluding managing partners. Caner Sezen, Murat Ersin and Senol Gorgu are managing partners and all of them have key roles in the firm. TCS Lydia’s portfolio of clients consists of mostly affiliates and subsidiaries of foreign capital companies and small and medium size local exporting companies. Increasing each year their firm visibility, awareness and reputation and becoming a serious rival of Big4 firms in the country are TCS Lydia’s company goals to which its permanence is dependent.