Insights

Strong Market Position Congstar is a leading German telecommunications provider, known for its awards such as Most Honest Mobile Operator and Mobile Provider of the Year, which highlights its reputation for integrity and quality service, creating opportunities to position complementary solutions that enhance customer trust and loyalty.

Innovative Technology Adoption The company's launch of eSIM cards and integration of modern tech stack components like React, Node.js, and Cloudflare indicates a focus on innovative digital solutions, suggesting potential sales opportunities in cloud services, digital marketing, or advanced telecom infrastructure.

Brand Partnerships Congstar's recent partnership with FC St. Pauli emphasizes its engagement in socially responsible initiatives, providing avenues to offer CSR-aligned products or services that bolster brand image and community engagement for clients targeting similar values.

Growth and Expansion With a revenue range of up to $25 million and a customer-centric approach in a competitive telecom landscape, the company presents opportunities for solutions in customer experience management, retention strategies, and scalable infrastructure to support ongoing growth.

Employee and Culture Focus Congstar’s emphasis on diversity, creativity, and flexible work arrangements shows a culture receptive to innovative ideas and technology, ideal for proposing tools that enhance employee engagement, remote collaboration, or diversity initiatives for corporate clients.

Similar companies to congstar

congstar Tech Stack

congstar uses 8 technology products and services including Bing Ads, Crazy Egg, Cloudflare CDN, and more. Explore congstar's tech stack below.

  • Bing Ads
    Advertising Networks
  • Crazy Egg
    Analytics
  • Cloudflare CDN
    Content Delivery Network
  • LottieFiles
    Design
  • Figma
    Design
  • React
    Javascript Frameworks
  • Node.js
    Programming Languages
  • PHP
    Programming Languages

Media & News

congstar's Email Address Formats

congstar uses at least 2 format(s):
congstar Email FormatsExamplePercentage
Last@congstar.netDoe@congstar.net
96%
First.Last@congstar.netJohn.Doe@congstar.net
4%
First.Last@congstar.deJohn.Doe@congstar.de
100%

Frequently Asked Questions

Where is congstar's headquarters located?

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congstar's main headquarters is located at 12-14 Bayenwerft Cologne, North Rhine-westphalia 50678 Germany. The company has employees across 2 continents, including EuropeSouth America.

What is congstar's phone number?

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You can contact congstar's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

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

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congstar's official website is congstar.de and has social profiles on LinkedIn.

What is congstar's SIC code NAICS code?

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congstar's SIC code is 4812 - Radiotelephone Communications NAICS code is 517 - Telecommunications.

How many employees does congstar have currently?

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As of February 2026, congstar has approximately 348 employees across 2 continents, including EuropeSouth America. Key team members include Head Of Customer Experience: P. E.Head Of Product Marketing: T. D.Head Of Digital Sales: K. M.. Explore congstar's employee directory with LeadIQ.

What industry does congstar belong to?

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congstar operates in the Telecommunications industry.

What technology does congstar use?

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congstar's tech stack includes Bing AdsCrazy EggCloudflare CDNLottieFilesFigmaReactNode.jsPHP.

What is congstar's email format?

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congstar's email format typically follows the pattern of Last@congstar.net. Find more congstar email formats with LeadIQ.

When was congstar founded?

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congstar was founded in 2007.

congstar

TelecommunicationsNorth Rhine-westphalia, Germany201-500 Employees

Fairness, Vielfalt und Du.

Wir sind ein buntes Team aus über 300 congstars und gehören zu einem der besten Arbeitgeber sowie führenden Telekommunikationsanbietern Deutschlands. 

Du findest uns mitten im Herzen von Köln im wunderschönen Rheinauhafen oder remote im Homeoffice. 

Als Teil der Deutschen Telekom bieten wir das Beste aus beiden Welten: Wir vereinen Flexibilität eines Start-ups mit der Sicherheit eines Konzerns im Rücken. 

Vielfalt inspiriert uns – unsere eigene und deine. Bei uns ist es erlaubt und sogar gewünscht, Dinge zu hinterfragen. Das, was wir machen, macht uns richtig Spaß und das merkt man. Wir sind bunt, wir sind kreativ und wir haben Bock – auf dich!

Section iconCompany Overview

Headquarters
12-14 Bayenwerft Cologne, North Rhine-westphalia 50678 Germany
Phone number
SIC Code
4812 - Radiotelephone Communications
NAICS Code
517 - Telecommunications
Founded
2007
Employees
201-500

Section iconFunding & Financials

  • $10M$25M

    congstar's revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $10M$25M

    congstar's revenue is estimated to be in the range of $10M$25M

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