These companies are large to mid-sized firms in North Rhine-Westphalia, primarily operating in telecommunications, utilities, and software development, alongside some manufacturing and media. Deutsche Telekom, with 67,270 employees, is a global communications and information technology company. E.ON, an energy group with 30,521 employees, focuses on energy networks and customer solutions. DeepL, a software development firm, provides AI-powered translation, and CWS offers environmental services.
The headquarters are distributed across various cities in North Rhine-Westphalia, including Bonn, Essen, Wuppertal, and Cologne. A notable concentration of companies in the telecommunications sector is evident, with several firms like Deutsche Telekom, Deutsche Glasfaser Unternehmensgruppe, 1&1 Versatel, NetCologne, and RheinEnergie AG having significant operations in the region.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Deutsche Telekomtelekom.com
A leading global communications and information technology company with a diverse team of 206,000 colleagues creating innovative solutions for digital transformation |
67,270 | |||
| 2 | 30,521 | ||||
| 3 |
Vorwerk Groupvorwerk-group.com
Development, manufacturing, and direct sales of high-quality household devices including Thermomix and Kobold vacuum cleaners worldwide. |
7,700 | |||
| 4 | 2,330 | ||||
| 5 |
FUNKEfunkemedien.de
A major media group in Germany with diverse product offerings and a focus on delivering top-notch journalism through print, digital, and online platforms |
2,300 | |||
| 6 | 1,468 | ||||
| 7 |
Deutsche Glasfaser Unternehmensgruppedeutsche-glasfaser.de
Planning, building, and operating open-access fiber optic connections for households, businesses, and public institutions in rural regions. |
1,395 | |||
| 8 |
TRILUXtrilux.com
Simplifying intelligent light with high-quality, individual solutions for offices, industry, healthcare, education, retail, and sports, focusing on people and a sustainable, healthy, connected world. |
1,377 | |||
| 9 | 1,315 | ||||
| 10 |
Schülerhilfe GmbH & Co. KGschuelerhilfe.de
A leading educational provider founded in 1974, offering tutoring services to over 125,000 students at 1,100 locations across Germany and Austria |
1,270 | |||
| 11 |
1&1 Versatel1und1.net
A leading German telecommunications specialist for businesses, providing data, internet, and voice services with a strong focus on expanding their extensive fiber infrastructure |
1,183 | |||
| 12 |
RheinEnergie AGrheinenergie.com
A regional municipal utility providing energy and drinking water to millions, RheinEnergie is committed to customer service and plays a key economic role in Cologne |
972 | |||
| 13 |
NetColognenetcologne-unternehmen.de
A regional telecommunications company in Cologne and Bonn, Germany, operating its own network and providing full communication services in the area |
958 | |||
| 14 |
INFORM GmbH - Optimization Softwareinform-software.com
Specializing in AI-driven software, we optimize business processes for various industries, promoting sustainable value creation and resilient operations worldwide |
925 | |||
| 15 |
Trusted Shopstrustedshops.com
A European company focused on building trust in the digital world through trustmark, feedback systems, legal support, and fostering a collaborative, trusting work environment |
780 | |||
| 16 |
Studienkreis GmbHstudienkreis.de
An education management company located in Bochum, Germany, specializing in providing academic support and resources Visit their website for more information |
772 | |||
| 17 |
Handelsblatthandelsblatt.com
Leading German financial and economic newspaper with a team of 200 journalists offering exclusive and up-to-date coverage on national and global issues |
659 | |||
| 18 |
Kölner Verkehrs-Betriebe AGkvb.koeln
The company provides public transportation services in Cologne, Germany, with a network of buses and trams serving over 800,000 passengers daily |
596 | |||
| 19 |
itelligencenttdata-solutions.com
The company provides business solutions and services under the new brand since April 1, 2021 as part of NTT DATA |
557 | |||
| 20 |
TIMOCOMtimocom.co.uk
The company revolutionizes road logistics with smart digital solutions, connecting companies with freight and optimizing transport efficiency while reducing CO² emissions |
553 | |||
| 21 |
SAP LeanIXleanix.net
SaaS platform for IT architects and DevOps teams to manage enterprise architecture, SaaS, and microservices, enabling faster, data-driven decisions in IT |
546 | |||
| 22 |
KINTO Mobilitykinto-mobility.eu
Innovative mobility services provider in Europe offering environmentally friendly solutions like corporate carpooling, car sharing, multi-mobility app, car leasing, and multi-car subscription |
538 | |||
| 23 |
Utimacoutimaco.com
Develops on-premises and cloud-based hardware security modules, key management, data protection, identity management, and data intelligence solutions for critical infrastructures. |
533 | |||
| 24 |
METRO Markets GmbHmetro-markets.de
The company specializes in creating a B2B commerce marketplace for business owners worldwide to focus on delighting others and making a difference |
529 | |||
| 25 | 464 | ||||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
journalistjournalist.de
A leading magazine in Germany for journalists across all media fields, focusing on improving journalism through print, online, and social media |
461 | |||
| 27 |
Shopwareshopware.com
Provides high-performance B2C and B2B ecommerce platform with open-source security, API-first architecture, and global scalability for businesses. |
436 | |||
| 28 |
Stadtwerke Bielefeld GmbHstadtwerke-bielefeld.de
The company provides energy, water, heat, mobility, telecommunications, leisure activities, and environmentally friendly waste incineration services for the city of Bielefeld |
393 | |||
| 29 |
Handelsblatt Media Grouphandelsblattgroup.com
A publishing company focused on providing high-quality, up-to-date information through various media platforms, including newspapers, magazines, and internet portals |
372 | |||
| 30 |
21st Century Workplacesemcostyle.com
This company specializes in providing stylish and trendy clothing and accessories for women and men on their online platform |
371 | |||
| 31 |
congstarcongstar.de
An innovative and flexible ICT company in Germany, offering a vibrant work environment with a blend of startup culture and corporate security |
365 | |||
| 32 |
Rheinbahn AGrheinbahn.de
A transportation company in Düsseldorf and surrounding areas, providing bus and train services to over 760,000 passengers daily on 135 lines |
361 | |||
| 33 |
VNR Groupvnrgroup.de
A family-founded media company offering over 500 B2B and B2C products to help individuals and businesses succeed through various platforms and solutions |
319 | |||
| 34 |
GBTEC Groupgbtec.com
Specializing in digital transformation, we provide smart software solutions and expert advice to help organizations unlock their full potential and increase company value sustainably |
256 | |||
| 35 |
Athlon Germanyathlon.com
A leading provider of vehicle leasing and fleet management solutions in Europe, offering innovative and cost-effective options for business customers |
254 | |||
| 36 |
NWB Verlag GmbH & Co. KGnwb.de
This family-owned company provides practical and easy-to-understand information for professionals in tax, accounting, auditing, and other fields to achieve professional success |
245 | |||
| 37 |
plusserverplusserver.com
A managed cloud service provider helping small and medium-sized enterprises navigate digital transformation with personalized services and a multi-cloud platform |
240 | |||
| 38 |
Alsco Berufskleidungs-Service GmbHalsco.de
specializes in full-service textile supply including workwear, hotel textiles, protective equipment, laundry collection, cleaning, and delivery nationwide |
229 | |||
| 39 |
JTL-Software-GmbHjtl-software.de
Development of comprehensive software solutions including inventory management, online shops, marketplace integration, warehouse management, and mobile POS for multichannel retail. |
229 | |||
| 40 |
Lensing Medialensingmedia.de
A media company with strong partners, Lensing Media connects and informs the region through newspapers, online platforms, digital agencies, and broadcasting |
229 | |||
| 41 |
GS1 Germany GmbHgs1-germany.de
A company that developed the universally recognized GS1 Barcode standard for efficient global business processes and solutions, used by millions worldwide |
222 | |||
| 42 |
chargecloudchargecloud.de
The company offers a complete B2B solution for managing and billing electric vehicle charging infrastructure, catering to both CPOs and EMPS |
216 | |||
| 43 |
Peoplewarepeopleware.com
Comprehensive workforce management platform offering forecasting, scheduling, real-time management, and employee engagement tools for global organizations. |
200 | |||
| 44 |
coconet Groupcoconet.de
A top whitelabel digital corporate banking platform provider in Europe, offering innovative solutions for banks with a unique channel platform |
199 | |||
| 45 | 197 | ||||
| 46 |
CWS Internationalcws.com
CWS is dedicated to realizing a healthier and safer future through sustainable innovations in hygiene, workwear, mats, fire protection, cleanrooms, health, and care |
185 | |||
| 47 |
klinikfinder.deklinikfinder.de
A job portal connecting clinics, doctors, and medicine students in Germany, offering map-based clinic search, job opportunities, informational content, and video courses |
184 | |||
| 48 | 
ALSO Deutschland GmbHalso.de
An information technology and services company located in Soest, Germany, specializing in providing IT solutions to clients |
184 | |||
| 49 |
Culligan Deutschlandculligan.de
The company provides high-quality, sustainable water solutions for various settings worldwide, ensuring pure drinking water for communities, businesses, and individuals |
183 | |||
| 50 |
WirtschaftsWochewiwo.de
Leading German business magazine providing analysis on politics, world economy, companies, technology, management, and investing for decision-makers with over a million readers |
183 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
More company lists in North Rhine-Westphalia
- The largest companies in North Rhine-Westphalia 2,983
- Multinational companies in North Rhine-Westphalia 996
- Companies with in-house R&D in North Rhine-Westphalia 455
- Manufacturers in North Rhine-Westphalia 426
- Family-owned companies in North Rhine-Westphalia 335
- Retail chains in North Rhine-Westphalia 311
- Hardware manufacturers in North Rhine-Westphalia 284
- Critical infrastructure operators in North Rhine-Westphalia 272
- Transportation, Logistics, Supply Chain and Storage companies in North Rhine-Westphalia 267
- Financial services firms in North Rhine-Westphalia 238
- Software Development companies in North Rhine-Westphalia 217
- SaaS companies in North Rhine-Westphalia 201
- Corporate groups and holding companies in North Rhine-Westphalia 189
- Companies with a mobile app in North Rhine-Westphalia 175
- IT Services and IT Consulting companies in North Rhine-Westphalia 171
- Public sector organisations in North Rhine-Westphalia 160
- Logistics companies in North Rhine-Westphalia 148
- Professional services firms in North Rhine-Westphalia 147
- IT services companies in North Rhine-Westphalia 146
- Financial Services companies in North Rhine-Westphalia 126
- Consulting firms in North Rhine-Westphalia 112
- E-commerce companies in North Rhine-Westphalia 110
- Automotive manufacturers and suppliers in North Rhine-Westphalia 103
- Distributors and wholesalers in North Rhine-Westphalia 103
The same list elsewhere in Germany
- Subscription businesses in Germany 426
- Subscription businesses in Bavaria 85
- Subscription businesses in Baden-Württemberg 46
- Subscription businesses in Hesse 37
- Subscription businesses in Berlin 101
- Subscription businesses in Munich 49
- Subscription businesses in Hamburg 28