Insights

Strategic partnership SESTEK’s acquisition by Unifonic and ongoing global deployments indicate a strong channel and cross-sell opportunity for AI-powered contact center solutions within Unifonic’s CPaaS ecosystem and existing clientele.

Enterprise scale With 500+ enterprise clients across 20 countries and a robust R&D team, SESTEK offers scalable, in-house SR and NLU capabilities that can be positioned to mid-market and enterprise customers seeking cost-efficient, high-accuracy self-service, analytics, and biometrics.

AI capabilities Product strengths in Virtual Agent, Analytics, and Biometrics present upsell paths for customers investing in self-service, quality management, and secure authentication across call centers, digital channels, and omnichannel experiences.

Recent initiatives New Agentic AI capabilities and expansions into VAS Knovvu signal a momentum in conversational AI features that can be pitched to clients seeking advanced automation, faster ROI, and differentiated CX offerings.

Industry validation Notable partnerships with ING, Five9, and other major players, plus measurable improvements in NPS and sales metrics, provide credible case studies to accelerate outreach to financial services, BPOs, and global contact centers seeking proven performance.

SESTEK Tech Stack

SESTEK uses 8 technology products and services including cdnjs, Microsoft SharePoint, Azure DevOps, and more. Explore SESTEK's tech stack below.

  • cdnjs
    Content Delivery Network
  • Microsoft SharePoint
    Content Management System
  • Azure DevOps
    Devops
  • Amazon CloudWatch
    IT Infrastructure Monitoring
  • Angular
    Javascript Frameworks
  • AngularJS
    Javascript Frameworks
  • Shutterstock
    Stock Images Providers
  • 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

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 July 2026, SESTEK has approximately 201 employees across 4 continents, including AsiaEuropeNorth America. Key team members include President: S. K.Head Of Pmo: A. A.Founder & Ceo: L. A.. 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 cdnjsMicrosoft SharePointAzure DevOpsAmazon CloudWatchAngularAngularJSShutterstockMediaElement.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 logo

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

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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