| # | Company | Employees |
|---|---|---|
| 1 |
Uniklinik Kölnuk-koeln.de
Innovative university hospital in Cologne, Germany, focused on providing top-notch medical care, research, education, and social responsibility |
3,472 |
| 2 |
Eurowingseurowings.com
Offering quality flights at reasonable prices to over 130 destinations worldwide Seeking motivated employees to join a prestigious aviation company |
2,574 |
| 3 |
DEVK Versicherungendevk.de
Provides reliable insurance coverage to millions, supported by dedicated employees ensuring customer care and simplifying everyday life. |
2,410 |
| 4 |
Malteser in Deutschlandmalteser.de
An international Catholic aid organization providing assistance to people in need regardless of their background, with a focus on healthcare and social services |
1,499 |
| 5 |
ENGIE Deutschlandengie-deutschland.de
A key player in Germany's energy supply, combining global strength with regional presence by generating power, supplying energy, and offering energy services |
1,368 |
| 6 |
Kreissparkasse Kölnksk-koeln.de
A reliable partner for people, businesses, and communities in the region, combining economic success with social and environmental responsibility |
1,188 |
| 7 |
Sparkasse KölnBonnsparkasse-koelnbonn.de
A regional financial institution offering personalized services, digital solutions, and career opportunities while supporting various community projects in education, social welfare, and culture |
1,103 |
| 8 |
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 |
| 9 |
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 |
| 10 |
Workers' Samaritan Federation (ASB)asb.de
An aid and welfare organization with branches and associations in Germany, offering rescue services, care for elderly, child services, and international aid projects |
819 |
| 11 |
Kliniken der Stadt Kölnkliniken-koeln.de
A leading provider of healthcare services in Cologne, Germany, with a focus on high-quality medical treatment and respect for human dignity regardless of nationality or beliefs |
733 |
| 12 |
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 |
| 13 |
EVO Payments International GmbHevopayments.eu
A leading payment service provider in Germany offering innovative solutions and technologies to optimize payment processes in the digital age |
481 |
| 14 |
SozialBanksozialbank.de
A specialized bank based in Cologne and Berlin, offering a full range of banking services to social and healthcare businesses and organizations nationwide |
384 |
| 15 |
Canada Life Assurance Europe plccanadalife.de
providing life insurance and pension solutions to ensure financial security and retirement planning for over 500,000 customers in Germany |
317 |
| 16 |
Toyota Kreditbank/ Toyota Financial Services Germanylinktr.ee
Provides innovative finance and leasing solutions for automobile customers, focusing on retailer collaboration and transitioning to mobility services. |
313 |
| 17 |
Cologne Bonn Airportkoeln-bonn-airport.de
A major commercial airport in Germany serving over 88 million passengers and 971,000 tonnes of air cargo annually, with 120 European and international destinations |
304 |
| 18 | 279 | |
| 19 |
Emons Logisticsemons.de
Family-owned company with over 115 branches worldwide, providing tailored logistics and transport solutions across various sectors, focusing on quality improvement. |
277 |
| 20 |
HGK Häfen und Güterverkehr Köln AGhgk.de
Logistics company operating Europe-wide, offering integrated transport services, utilizing environmentally friendly ship and rail, managing inland ports, shipping, and rail freight operations. |
178 |
| 21 |
DEVK Rückversicherungs- und Beteiligungs-AG - DEVK REdevk-re.com
A reinsurance company providing services in property, casualty, and life insurance, focusing on Europe, USA, and Canada, with a commitment to trust, individuality, transparency, and continuity |
124 |
| 22 |
abcbank GmbHabcbank.de
As a modern financial service provider rooted in Cologne, we offer above-average returns, solid wealth planning, and sustainable investment products for our clients' security and growth |
58 |
| 23 |
Talanx Deutschland AGtalanx.com
A telecommunications company based in Cologne, Germany, specializing in providing a wide range of telecommunication services and solutions |
56 |
| 24 |
PSD Bank West eGpsd-west.de
A regional cooperative bank providing honest, personalized banking services with fair conditions, supporting local communities, youth, culture, and sports organizations |
49 |
| 25 |
Pax-Bank eGpax-bkc.de
A Christ-centered cooperative bank offering ethical financial services, asset management, and holistic sustainability practices for individuals, organizations, and institutions |
44 |
| 26 |
RheinEnergie – next energy solutionsrheinenergie.com
The company offers specialized contracting solutions and holistic energy services, integrating renewable energy and supporting businesses in achieving climate neutrality through innovative projects |
2 |
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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 Oct 24, 2026.
More company lists in Cologne
- The largest companies in Cologne 417
- SaaS companies in Cologne 47
- Financial services firms in Cologne 45
- Software Development companies in Cologne 41
- Retail chains in Cologne 31
- IT Services and IT Consulting companies in Cologne 27
- Financial Services companies in Cologne 25
The same list elsewhere in Germany
- Critical infrastructure operators in Germany 1,098
- Critical infrastructure operators in North Rhine-Westphalia 222
- Critical infrastructure operators in Bavaria 187
- Critical infrastructure operators in Baden-Württemberg 142
- Critical infrastructure operators in Hesse 131
- Critical infrastructure operators in Lower Saxony 101
- Critical infrastructure operators in Rhineland-Palatinate 42
- Critical infrastructure operators in Saxony 31
- Critical infrastructure operators in Frankfurt 65
- Critical infrastructure operators in Berlin 64
- Critical infrastructure operators in Hamburg 63
- Critical infrastructure operators in Munich 52
- Critical infrastructure operators in Düsseldorf 34