| # | Company | Employees |
|---|---|---|
| 1 |
RWTH Aachen Universityrwth-aachen.de
A leading European institution for science and research, offering over 150 academic programs to 45,000 students with a strong emphasis on real-world applications |
6,496 |
| 2 |
Grünenthal Groupgrunenthal.com
Global leader in pain management and related diseases, bringing innovative treatments to patients worldwide, with a vision of a pain-free world |
4,680 |
| 3 |
Uniklinik RWTH Aachenukaachen.de
Leading university hospital offering top-tier medical care, research, and education in a unique setting that fosters interdisciplinary collaboration and excellence in healthcare |
2,337 |
| 4 |
FH Aachen University of Applied Sciencesfh-aachen.de
A leading German university with over 14,000 students, offering a wide range of programs in STEM, business, and design, including dual study options Visit their website for more information |
1,500 |
| 5 |
FEV Europe GmbHfev.com
Develops vehicle, powertrain hardware, software solutions, from design, testing to production, including consulting. Specializes in electrification, alternative fuels, and automated driving. |
1,400 |
| 6 |
umlaut companyaccenture.com
Global professional services company specializing in digital transformation, technology, consulting, operations, and industry solutions for diverse clients worldwide. |
1,249 |
| 7 |
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 |
| 8 |
Stadt Aachenkarriere.aachen.de
A dynamic organization in Aachen, shaping the city's future through diverse services, digital innovation, and collaboration with leading research institutions and international partners |
793 |
| 9 |
Zentis Groupzentis.de
Processing and refining natural fruit and vegetable ingredients, creating customized food solutions for global customers from concept to commercialization. |
679 |
| 10 |
P3 Group
This company has been rebranded as umlaut and provides consulting services Another part focuses on a different sector |
668 |
| 11 |
BABOR BEAUTY GROUPen.babor-beauty-group.com
A globally recognized cosmetics company with over 65 years of experience, specializing in skincare products developed and produced in Germany |
570 |
| 12 |
KISTERS Groupkisters.eu
An environmentally-focused IT company specializing in collecting and analyzing data to promote responsible use of natural resources and combat climate change |
535 |
| 13 |
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 |
| 14 |
Trianel GmbHtrianel.com
Established in 1999, the company operates in the liberalized electricity and gas market, focusing on independence, innovation, and collaboration They support municipal energy suppliers with various services |
450 |
| 15 |
Werkzeugmaschinenlabor, WZL der RWTH Aachenwzl.rwth-aachen.de
An innovative production engineering institute with four major departments and a staff of nearly 600 at RWTH Aachen |
450 |
| 16 | 410 | |
| 17 |
Fraunhofer Institute for Production Technology IPTipt.fraunhofer.de
Researching and developing sustainable, digitalized production technologies for various industries while offering career opportunities for students and graduates in science and industry |
373 |
| 18 |
Fraunhofer ILTilt.fraunhofer.de
A leading research institute specializing in laser technology development and applications, offering expertise in areas such as laser sources, components, and manufacturing technologies |
354 |
| 19 |
StädteRegion Aachenstaedteregion-aachen.de
This company serves over 560,000 people in ten cities by providing various services through 29 departments, aiming to make the region more livable, socially just, and future-proof |
346 |
| 20 |
Lindt & Sprüngli Deutschlandlindt.de
Production and retail of premium chocolate products in Germany, combining tradition and innovation with a passionate, diverse workforce. |
333 |
| 21 |
regio iT gesellschaft für informationstechnologie mbhregioit.de
A leading IT partner for public sector organizations, offering strategic consulting, IT infrastructure, and full-service solutions in various sectors with a focus on digitalization and employee satisfaction |
322 |
| 22 |
University Hospital Aachenukaachen.de
A modern medical center affiliated with a university, providing high-quality patient care, teaching, and research in various medical specialties |
313 |
| 23 |
Misereormisereor.de
A nonprofit organization supporting people in poverty-stricken areas by fighting injustice, violence, poverty, and advocating for social and political change worldwide |
312 |
| 24 |
Sparkasse Aachensparkasse-aachen.de
A leading financial service provider in Aachen region, offering fair and personalized services to customers with a strong local presence |
260 |
| 25 |
Henry Lambertz GmbH & Co KGlambertz.de
Leading German bakery group with over 1,200 years of experience, producing a diverse range of sweet treats, fostering innovation, quality, and talent development |
258 |
| 26 |
ModuleWorksmoduleworks.com
Leading developer of CAD/CAM software components for CNC machines and robots, with global market dominance and a young, dynamic team fostering innovation and collaboration |
258 |
| 27 |
DSA Daten- und Systemtechnik GmbHdsa.de
Specialized in developing communication solutions for vehicle electronics, offering diagnostics systems, remote monitoring, software updates, and data analysis for the automotive industry |
236 |
| 28 |
Fraunhofer-Institut für Molekularbiologie und Angewandte Oekologie IMEime.fraunhofer.de
The company conducts applied life sciences research for industries, healthcare, agriculture, and environmental protection, focusing on developing new technologies for diagnostics and therapies |
216 |
| 29 |
Continental Reifen Deutschland GmbHcontinental-reifen.de
An automotive company in Germany specializing in the production and distribution of tires |
209 |
| 30 |
ITA Institut für Textiltechnik der RWTH Aachen Universityita.rwth-aachen.de
An institute connected to RWTH Aachen University focusing on textile engineering research, technology transfer, and textile processing with advanced facilities and equipment |
193 |
| 31 |
Regionetz GmbHregionetz.de
A major network operator in the Aachen region, managing construction and operation of electricity, gas, heat, and water networks, with a focus on collaboration with two partners |
172 |
| 32 |
Aachener Verfahrenstechnik (RWTH Aachen University)avt.rwth-aachen.de
The company is a leading research institution in process engineering with eight chairs, interdisciplinary projects, collaborations with universities and industry partners, and participation in research clusters |
171 |
| 33 |
PEM RWTH Aachen Universitypem.rwth-aachen.de
The company conducts innovative research and innovation in electric mobility production processes, components, batteries, and recycling, supported by industry collaborations |
170 |
| 34 |
Luisenhospitalluisenhospital.de
This organization in Aachen operates a hospital, a nursing home, and a healthcare training academy, all focused on serving the community with top-quality care |
170 |
| 35 |
DWI - Leibniz Institute for Interactive Materialsdwi.rwth-aachen.de
Advanced materials research company focused on developing active and adaptive materials through interdisciplinary collaboration in polymer sciences, biotechnology, and chemical engineering |
163 |
| 36 |
Psychologische Praxisberatungspraxis-awolfs.de
Psychological practice specializing in psychotherapy, mediation, and counseling for individuals, couples, and families, offering support for mental health issues and conflict resolution |
161 |
| 37 |
Generali Deutschland Informatik Services GmbHgenerali-informatik.de
A full-service IT provider for one of Germany's largest financial services groups, offering innovative solutions in the insurance market |
157 |
| 38 |
Wood Working1498993814.jimdoweb.com
An arts and crafts company specializing in wood working, located in Aachen, Germany |
155 |
| 39 |
IKV- Institute for Plastics Processing in Industry and Craft at RWTH Aachen Universityikv-aachen.de
Leading European research institute in plastics technology, providing innovative solutions and expertise through industry partnerships, academic training, and interdisciplinary research projects |
155 |
| 40 |
BFT Gruppebft-gruppe.de
A multidisciplinary group providing expertise in construction (planning, consulting, inspection) through various companies specializing in engineering, architecture, consulting, and project management |
155 |
| 41 | 154 | |
| 42 |
FEV Vehicle GmbHfev.com
A technologically driven company part of a global group, specializing in total vehicle development, from pre-development to series production worldwide |
149 |
| 43 |
Black Semiconductorblacksemi.com
Developing ultra-fast, energy-efficient, and scalable chip fabrics using 2D graphene material, connecting thousands of chips to function as a single unit. |
148 |
| 44 | 122 | |
| 45 |
DRIVE Consultingdrive-consulting.de
A consultancy focused on the mobility industry, helping manufacturing companies navigate unknown territory, innovate, and achieve success through unique paths |
106 |
| 46 |
meteovivameteoviva.com
A leading smart data provider for optimized building operations worldwide, specializing in decarbonization, efficiency gains, and ESG criteria compliance |
94 |
| 47 |
Weigandt Consultingweigandt-consulting.com
A European retail consulting company utilizing advanced technologies to optimize stock, pricing, assortment, and customer experience for a first-class shopping journey |
92 |
| 48 |
Saint-Gobain Deutschlandsaint-gobain.de
A global company developing and distributing materials and solutions for construction, mobility, health, and industrial sectors, focusing on innovation and sustainability |
90 |
| 49 |
elexon GmbHelexon-charging.com
The company offers turn-key solutions for electric vehicle charging infrastructure, including design, engineering, construction, maintenance, and repair services They specialize in AC and DC charging spots |
90 |
| 50 |
MAGMA Gießereitechnologie GmbHmagmasoft.de
A global leader in providing innovative casting solutions and simulation software to optimize castings and casting processes for various industries |
86 |
| 51 |
Hammer GmbH & Co. KGhammer-ac.de
Provides tailored transport and logistics solutions with own fleet, worldwide network, and customer-focused, technology-driven processes along supply chains. |
86 |
| 52 |
SMART/LAB Innovationsgesellschaft mbHsmartlab-gmbh.com
We are pioneers in electromobility, leading in Germany and Europe with unique partnerships, innovative products, and ambitious growth goals |
84 |
| 53 |
Vygon Germanyvygon.de
A leading global manufacturer of high-tech medical devices for single use, specializing in products for various medical areas distributed worldwide |
83 |
| 54 |
aixigoaixigo.com
Offering a high-performance API-based wealth management platform for banks and financial institutions to create innovative and profitable wealth management services efficiently |
79 |
| 55 |
tl;dv - AI Meeting Assistanttldv.io
It is an AI Meeting Assistant that records, transcribes, and summarizes meetings while providing insights and integrating with numerous tools. |
65 |
| 56 |
ConSense GmbH – Quality & Integrated Management Systemsconsense-gmbh.de
Developing user-friendly, scalable process and quality management software since 2003, tailored to various industries and company sizes, including compliance with international standards |
61 |
| 57 |
Clinomicclinomic.ai
Dynamic company developing innovative technological solutions for critically ill patients using medical research, data science, and computational intelligence for optimal patient treatment |
59 |
| 58 |
PEM Motionpem-motion.com
A company shaping future mobility through consulting, training, and engineering services in electromobility, with a focus on smart technologies and global partnerships |
55 |
| 59 |
MainConceptmainconcept.com
Leading provider of video & audio codec solutions since 1993 Trusted by industry leaders for quality, performance, and reliability in encoding and decoding |
52 |
| 60 |
FE-DESIGN GmbH joins SIMULIA, a Dassault Systèmes brand3ds.com
Specializing in design optimization solutions, we enhance simulation applications on a comprehensive platform to deliver sustainable and efficient engineering services |
46 |
| 61 |
FibreCoatfibrecoat.de
Produces affordable high-performance composite fibers, like aluminum-coated basalt or glass, enabling advanced materials for various applications including EM-shielding. |
46 |
| 62 |
Innolite GmbHinnolite.de
Specializing in optical mold making and ultra precision machine technology, we drive productivity to provide cutting-edge optical solutions in polymer and metal materials Visit wwwinnolitede |
45 |
| 63 | 42 | |
| 64 |
INFORM DataLab GmbHinform-datalab.com
The company provides innovative solutions for data management, analytics, and science, helping businesses make informed decisions based on data analysis |
42 |
| 65 |
cycos AG, an Atos businesscycos.com
An experienced technology company focusing on modernizing customer applications, implementing new projects, and providing Unified Communications and Collaboration services |
37 |
| 66 |
GEVA Groupgeva-group.com
A leading European payment specialist providing secure, efficient, and innovative solutions for electronic and paper-based payment processing, banking portals, and compliance software as a service |
32 |
| 67 |
eCademy GmbHecademy-learning.com
eCademy provides e-learning solutions for vocational training in industrial-technical and commercial professions, offering professional content to enhance skills development |
29 |
| 68 |
Heusch/Boesefeldt GmbHheuboe.de
A pioneer in Active Traffic Management, specializing in system development, integration, and consulting for intelligent roadway traffic solutions |
28 |
| 69 |
tetys GmbH & Co. KGtetys.de
The company offers an end-to-end solution for shop floor management, ensuring consistency in order and production data, enabling quick adaptability to changing conditions |
28 |
| 70 |
Leineweber GmbHleineweb.de
An apparel & fashion company located in Germany, specializing in providing quality clothing products to customers |
27 |
| 71 | 23 | |
| 72 |
Dr. Sacher Kosmetik GmbHdr-sacher-kosmetik.de
Specializing in developing and producing high-quality cosmetics, offering full-service packages from product development to marketing, with a focus on innovation and sustainability |
23 |
| 73 |
GTS Systems and Consulting GmbHgts-systems.com
A consulting and software company specializing in logistics optimization, planning, and control Providing custom software development and logistics consulting services |
22 |
| 74 |
Zentis Fruchtwelt GmbH & Co. KGZentis-Group.com
A global company specializing in processing natural ingredients into fruit, warm flavor, cereal, and vegetable preparations, offering customized food solutions worldwide since 1893 |
22 |
| 75 |
Hiflexhiflex.com
Global leader in MIS and integrated Web2Print workflow solutions for print and media industries, specializing in reducing administrative costs and improving productivity through integration |
19 |
| 76 |
I-Care Deutschland GmbHicareweb.com
The company is a global leader in predictive maintenance, utilizing AI-driven solutions to anticipate industrial failures, improve safety, and enhance production processes worldwide |
19 |
| 77 |
e-dynamics GmbHe-dynamics.de
A leading consulting company specializing in digital analytics, web intelligence, and providing personalized support for online success through data interpretation |
19 |
| 78 |
Modell Aachen GmbHmodell-aachen.de
Providing interactive management systems using Wiki technology, combining consulting, implementation, and IT for process-led executive and knowledge management. |
19 |
| 79 |
SIGMASOFT Virtual Molding Europesigmasoft.de
This company specializes in providing simulation software for optimizing polymer forming processes and injection molding production for various applications |
16 |
| 80 |
e-clearing.net GmbHe-clearing.net
A platform facilitating data exchange for e-mobility, enabling roaming authorization, charge transaction, and charge point information exchange to advance e-mobility |
13 |
| 81 |
AlbrechtConsult GmbHalbrechtconsult.com
AlbrechtConsult is an independent consulting firm specializing in Intelligent Transportation Systems & Services, focusing on C-ITS, Automated Driving, standards development, project management, and data exchange in logistics |
10 |
| 82 |
VOLKER LANG Accessoires GmbHvolkerlang.com
A timeless designer brand specializing in minimalist, high-quality bags and wallets, crafted with care using select materials and ethical practices |
8 |
| 83 |
aiXbrain GmbHaixbrain.de
A team of tech enthusiasts from Aachen providing AI software for manufacturers to implement and scale AI use cases |
8 |
| 84 |
Dilissen Logistics GmbHdilissen-logistics.de
An international logistics company with a modern fleet offering transportation services for goods in various load sizes and types |
8 |
| 85 |
SpexAI by LemnaTecspexai.com
A German AgTech company providing cutting-edge imaging technology for monitoring cannabis plants, predicting cannabinoid content, and detecting diseases early for optimal growth |
7 |
| 86 |
Saint-Gobain pre.formance GmbHpreformance.de
Saint-Gobain preformance offers a comprehensive, eligible package for serial renovations in the housing industry, achieving high energy efficiency and CO2 neutrality |
6 |
| 87 |
Europaverkehre Hammer & Co. GmbHhamco.de
An international logistics company based in Aachen specializing in direct transport of Silo, curtain-side trucks, and tippers across Europe with a fleet of trucks and a modern cleaning facility |
5 |
| 88 |
Hammer GmbH & Co. KG, Advanced Logisticshammer-ac.de
Our specialists offer customized transport solutions with the best in the industry |
4 |
| 89 |
Wertz Autokrane GmbH & Co. Transporte KGwertz.de
A third-generation family business offering comprehensive services including steel trading, cutting, waste disposal, forklift services, metal recycling, and heavy-duty crane operations for efficient load handling |
3 |
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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 9, 2026.
The same list elsewhere in Germany
- The largest companies in Germany 13,485
- The largest companies in Berlin 1,477
- The largest companies in Munich 957
- The largest companies in Hamburg 824
- The largest companies in Frankfurt 475
- The largest companies in Cologne 417
- The largest companies in Düsseldorf 307
- The largest companies in Stuttgart 266
- The largest companies in Bremen 177
- The largest companies in Hanover 140
- The largest companies in Bonn 135
- The largest companies in Nuremberg 132
- The largest companies in Karlsruhe 120
- The largest companies in Essen 112
- The largest companies in Mannheim 106
- The largest companies in Dortmund 97
- The largest companies in Leipzig 80
- The largest companies in Dresden 79