SESTEK is a conversational automation company that builds AI-powered solutions for customer service. Founded in 2000 and headquartered in Istanbul, the firm has developed its entire technology stack in-house, retaining full ownership of its core products. Its multidisciplinary R&D team of over 100 engineers works across speech recognition, natural language processing, text-to-speech, voice biometrics, Agentic AI, and Conversational Intelligence.
The company's flagship offering, the Agentic CX Suite, combines Agentic AI, Conversational Intelligence, and Agent Copilot tools. The suite enables organisations to automate customer service operations, analyse interactions at scale, and authenticate customers through voice biometrics. SESTEK's technology is deployed across industries including banking, insurance, telecom, retail, and BPO.
SESTEK serves more than 700 enterprise clients in 20 countries. Its operations span the United States, the UAE, and Turkey, where the company maintains two R&D centres alongside its Istanbul headquarters.






