What Does SESTEK Do?

Total employees209
HeadquartersIstanbul
Founded2000

Sestek is a global technology company specializing in AI-powered conversational automation and speech technologies. Founded in 2000, Sestek helps organizations improve customer experience, increase efficiency, and gain valuable insights through its innovative solutions. Key offerings include Voice Biometrics for secure authentication, Speech Analytics for understanding customer interactions, Conversational AI (chatbots and virtual assistants) for automated customer service, and Call Center Technologies. Sestek serves a diverse range of industries, including finance, telecommunications, retail, and healthcare, by leveraging its deep expertise in artificial intelligence and machine learning.

Where Is SESTEK's Headquarters?

SESTEK officeSESTEK officeSESTEK officeSESTEK office
*Images sourced via web search. Rights belong to original owners

HQ Function

Serves as the central hub for research and development, strategic planning, global operations management, and corporate administration.

Notable Features:

Situated within ARI Teknokent, a leading Turkish technology park, providing access to a rich talent pool and fostering a collaborative R&D environment. Features modern office spaces and advanced research facilities.

Work Culture:

An innovative, research-driven, and collaborative environment focused on developing cutting-edge AI and speech technologies. Sestek emphasizes continuous learning and professional growth in a dynamic tech setting.

HQ Significance:

As the main R&D and operational center, it drives Sestek's technological innovation and global market strategies. Its location in a major tech hub enhances its capabilities and international reach.

Values Reflected in HQ: The HQ's placement in a premier technology park and its focus on R&D reflect Sestek's core values of innovation, technological excellence, and collaboration.

Location:

Sestek supports global functions including sales, marketing, customer support, research & development, and solution deployment across North America, Europe, the Middle East, and Asia. Leveraging its strategically located offices in Turkey, the USA, and the UAE, along with a network of international partners, Sestek serves a diverse client base in over 20 countries, providing localized solutions and support.

Street Address:

Reşitpaşa Mah. Katar Cad. No:4/1, ARI Teknokent 3, İç Kapı No:601

City:

Istanbul

State/Province:

Istanbul

Country:

Türkiye

Where Else Does SESTEK Operate Around the World?

Palo Alto, CA/USA

Address: Sestek Inc., 228 Hamilton Ave, 3rd Floor, Palo Alto, CA 94301, USA

To expand Sestek's presence in North America, engage with key technology partners and clients in Silicon Valley, and tailor solutions for the regional market.

Dubai/UAE

Address: Sestek MEA, Dtec, Technohub 1, Dubai Silicon Oasis, Dubai, UAE

To cater to the growing demand for AI and conversational automation solutions in the MEA region and provide localized support.

Ankara/Türkiye

Address: Üniversiteler, 1596. Cad. Hacettepe Teknokent Sit. 6C İç Kapı No:76, 06800 Çankaya/Ankara, Türkiye

To enhance Sestek's R&D capabilities and tap into the skilled engineering pool in Ankara, supporting innovation across Sestek's product lines.

Buying Intent Signals for SESTEK

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Who's Leading SESTEK? Meet the Executive Team

As of April 2025, SESTEK' leadership includes:

Prof. Dr. Levent Arslan - Founder & CEO
Serdar Karadayı - Chief Sales Officer (CSO)
Hilmi Zafer Dicle - Chief Technology Officer (CTO)
Onur Ozdurak - Chief Product Officer (CPO)
Büşra Yaşar - Chief Marketing Officer (CMO)

Who's Investing in SESTEK?

SESTEK has been backed by several prominent investors over the years, including:

Mediterra Capital

What Leadership Changes Has SESTEK Seen Recently?

Hire0
Exits0

Based on publicly available information, Sestek's executive team has maintained stability over the last 12 months. No major publicly announced new hires or departures at the C-suite level have been identified during this period. The existing leadership team continues to guide the company's strategic initiatives and growth.

What Technology (Tech Stack) Is Used bySESTEK?

Discover the tools SESTEK uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

SESTEK Email Formats and Examples

Sestek commonly utilizes the email format 'first.last@sestek.com' for its employees. This is the primary structure for professional communication within and outside the company. While other formats might exist for specific roles or legacy reasons, this is the most frequently encountered.

first.last@sestek.com

Format

jane.doe@sestek.com

Example

85%

Success rate

What's the Latest News About SESTEK?

sestek.comOctober 12, 2023

Sestek Showcases Conversational AI Innovations at GITEX Global 2023

Sestek participated in GITEX Global 2023, one of the world's largest tech events, demonstrating its latest advancements in conversational AI, voice biometrics, and customer experience technologies to a global audience in Dubai....more

sestek.comMay 23, 2023

Sestek Named a Representative Vendor in 2023 Gartner® Market Guide for Voice Biometrics

Sestek announced its inclusion as a Representative Vendor in the 2023 Gartner Market Guide for Voice Biometrics. This recognition highlights Sestek's capabilities and offerings in the field of voice-based authentication and fraud prevention....more

sestek.comFebruary 14, 2023

Sestek Recognized in the 2023 Gartner® Magic Quadrant™ for Enterprise Conversational AI Platforms

Sestek was recognized in the Gartner Magic Quadrant for Enterprise Conversational AI Platforms. This acknowledgment underscores Sestek's position and innovative solutions in the domain of AI-driven customer interactions and virtual assistants....more

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