Insights

Expanding AI Capabilities SESTEK's recent launch of Agentic AI capabilities for customer service bots presents a new opportunity to offer enhanced automation solutions to existing clients and attract organizations seeking advanced conversational AI tools.

Global Customer Base With over 500 enterprise clients across 20 countries, there is potential to explore cross-border sales by showcasing SESTEK’s multilingual speech recognition and biometrics solutions to multinational corporations expanding their customer engagement channels.

Strategic Partnerships SESTEK’s collaborations with Five9 and ING Bank demonstrate a strong foothold in contact center enhancement and speech analytics, creating prospects to bundle these solutions with other enterprise contact center solutions for integrated offerings.

Acquisition Momentum The acquisition by Unifonic signals a strategic move towards broader CPaaS integration, opening up opportunities to introduce SESTEK’s AI-powered automation solutions within the extensive communication platform ecosystems of potential clients.

Financial Growth & Market Position With revenues estimated between 500 million and 1 billion dollars and a focus on R&D, SESTEK is well-positioned to offer premium conversational technologies, appealing to large enterprises seeking innovative customer engagement solutions for competitive differentiation.

SESTEK Tech Stack

SESTEK uses 8 technology products and services including jsDelivr, WordPress, Azure DevOps, and more. Explore SESTEK's tech stack below.

  • jsDelivr
    Content Delivery Network
  • WordPress
    Content Management System
  • Azure DevOps
    Devops
  • Wireshark
    IT Infrastructure Monitoring
  • Ext JS
    Javascript Frameworks
  • Vue.js
    Javascript Frameworks
  • Google Tag Manager
    Tag Management
  • MediaElement.js
    Video Players

Media & News

SESTEK's Email Address Formats

SESTEK uses at least 1 format(s):
SESTEK Email FormatsExamplePercentage
First.Last@sestek.comJohn.Doe@sestek.com
96%
First.Middle@sestek.comJohn.Michael@sestek.com
1%
Last@sestek.comDoe@sestek.com
2%
Last.First@sestek.comDoe.John@sestek.com
1%

Frequently Asked Questions

Where is SESTEK's headquarters located?

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SESTEK's main headquarters is located at 109b 1b Ofis Blok no 4 Vadistanbul Bulvar Ayazağa, Istanbul 34396 Turkey. The company has employees across 4 continents, including AsiaNorth AmericaEurope.

What is SESTEK's official website and social media links?

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SESTEK's official website is sestek.com and has social profiles on LinkedIn.

What is SESTEK's NAICS code?

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SESTEK's NAICS code is 5112 - Software Publishers.

How many employees does SESTEK have currently?

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As of June 2026, SESTEK has approximately 203 employees across 4 continents, including AsiaNorth AmericaEurope. Key team members include Head Of Pmo: A. A.Founder & Ceo: L. A.Chairman Of The Board: S. C.. Explore SESTEK's employee directory with LeadIQ.

What industry does SESTEK belong to?

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SESTEK operates in the Software Development industry.

What technology does SESTEK use?

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SESTEK's tech stack includes jsDelivrWordPressAzure DevOpsWiresharkExt JSVue.jsGoogle Tag ManagerMediaElement.js.

What is SESTEK's email format?

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SESTEK's email format typically follows the pattern of First.Last@sestek.com. Find more SESTEK email formats with LeadIQ.

When was SESTEK founded?

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SESTEK was founded in 2000.

SESTEK

Software DevelopmentIstanbul, Turkey201-500 Employees

SESTEK is a mid-sized software development company based in Istanbul, Marmara Region, that has focused on AI-powered conversational automation for customer service since 2000. Its research and development team, consisting of more than 100 engineers, builds end-to-end conversational solutions designed to understand and respond to customer inquiries. The company serves more than 500 enterprise clients across about 20 countries, helping them digitize and streamline their customer service operations. 

SESTEK offers a product portfolio that includes a virtual agent for handling routine interactions, analytics for extracting insights from customer conversations, and a biometric-based caller verification capability. In 2022, SESTEK was acquired by Unifonic, a leading CPaaS provider, placing it within a broader communications platform ecosystem.

Section iconCompany Overview

Headquarters
109b 1b Ofis Blok no 4 Vadistanbul Bulvar Ayazağa, Istanbul 34396 Turkey
Website
sestek.com
NAICS Code
5112 - Software Publishers
Founded
2000
Employees
201-500

Section iconFunding & Financials

  • $500M$1B

    SESTEK's revenue is estimated to be in the range of $500M$1B

Section iconFunding & Financials

  • $500M$1B

    SESTEK's revenue is estimated to be in the range of $500M$1B

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