Insights

Strong Brand Reputation Congstar has demonstrated consistent recognition as a trustworthy and honest mobile operator, having won the Most Honest Mobile Operator award four times and being ranked as Mobile Provider of the Year. This solid reputation enhances customer loyalty and provides opportunities for premium service offerings and brand extensions.

Innovation Adoption The company is actively embracing new technology, such as launching eSIM cards and integrating the latest tech stacks like React, Node.js, and Cloudflare CDN. These advancements indicate openness to innovative solutions, creating opportunities for advanced technological collaborations and tailored mobile solutions.

Strategic Partnerships Congstar’s partnership with FC St. Pauli, emphasizing social responsibility, suggests an openness to collaborative marketing campaigns and corporate sponsorship initiatives. Engaging with such high-profile partnerships can open channels for co-branded offers and community-focused campaigns.

Market Positioning As a subsidiary of Deutsche Telekom with a mid-sized workforce, Congstar occupies a competitive space focusing on affordability and trust within Germany’s telecom sector. Opportunities exist to upsell premium plans or expand into niche markets with targeted promotional offers leveraging its trusted brand.

Customer Acquisition Strategies Recent launches of special offers, like the LTE 50 Option and new customer promotions, point to a focus on expanding user base through attractive plans. Tailored sales campaigns highlighting these discounts can help capture new segments and increase market share in the prepaid and postpaid segments.

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
95%
First.Last@congstar.netJohn.Doe@congstar.net
5%
First.Last@congstar.deJohn.Doe@congstar.de
100%

Frequently Asked Questions

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 December 2025, congstar has approximately 339 employees across 2 continents, including EuropeSouth America. Key team members include Head Of Webshop Solutions: O. W.Head Of Customer Experience: P. E.Head Of Product Marketing: T. D.. 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 280 congstars und gehören zu einem der besten Arbeitgeber sowie führenden Mobilfunkanbietern 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

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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