# List of professional services firms in Cologne
Tamtam tracks 30 professional services firms headquartered in Cologne. This list ranks all of them by number of employees on LinkedIn, led by Formel D Group, TΓV Rheinland Asia and Luther Rechtsanwaltsgesellschaft mbH. Their median headcount is 214. Half of them were founded in 1998 or later.
These professional services firms in Cologne include a mix of large established companies and mid-sized firms. Most companies here focus on business consulting, IT services, and legal advice. Noteworthy companies include TΓV Rheinland Asia, a global leader in technical services focused on safety and quality, and Luther Rechtsanwaltsgesellschaft mbH, which provides comprehensive legal and tax services.
Other prominent firms are Formel D Group, a global automotive service provider, and TIMETOACT GROUP, specializing in modernizing IT applications. The data shows a strong concentration of firms founded in the 1990s and early 2000s, indicating a period of growth for professional services in the region.
π©πͺ Cologne Β· 30 companies Β· Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Formel D Group](https://www.tamtam.ai/c/formel-d-group) (formeld.com)
Global automotive service provider offering market leading concepts and scalable solutions across the automotive value chain, from development to aftersales service Passion, professionalism, team spirit | Business Consulting and Services | π©πͺ Cologne | 3,726 | 1993 |
| 2 | [TΓV Rheinland Asia](https://www.tamtam.ai/c/tuv-rheinland-asia) (tuv.com)
A global leader providing technical services focused on safety and quality, with nearly 20,000 employees and annual revenues close to β¬2 billion | Public Safety | π©πͺ Cologne | 1,015 | 1872 |
| 3 | [Luther Rechtsanwaltsgesellschaft mbH](https://www.tamtam.ai/c/luther-rechtsanwaltsgesellschaft-mbh) (luther-lawfirm.com)
Provides comprehensive legal and tax services to medium-sized enterprises, large corporations, and public sector clients across Europe and Asia. | Legal Services | π©πͺ Cologne | 963 | 1992 |
| 4 | [TIMETOACT GROUP](https://www.tamtam.ai/c/timetoact-group) (timetoact-group.com)
The company specializes in modernizing and integrating IT applications for businesses, while also designing and implementing digital business models for innovative clients | IT Services and IT Consulting | π©πͺ Cologne | 952 | |
| 5 | [Detecon](https://www.tamtam.ai/c/detecon) (detecon.com)
Leading consulting partner specializing in digital transformation, connectivity, and communications to implement innovative business models for enhanced customer experiences and employee satisfaction. | Business Consulting and Services | π©πͺ Cologne | 950 | 1977 |
| 6 | [BCG Platinion](https://www.tamtam.ai/c/bcg-platinion) (bcgplatinion.com)
Global interdisciplinary consultancy delivering large-scale technology projects, platform architecture, and cybersecurity solutions to accelerate digital transformations and drive innovation for diverse clients. | Business Consulting and Services | π©πͺ Cologne | 945 | 2000 |
| 7 | [Inverto \| A BCG Company](https://www.tamtam.ai/c/inverto-a-bcg-company) (inverto.com)
An international management consultancy specializing in strategic procurement and supply chain management, helping clients reduce costs, optimize processes, and digitize procurement | Business Consulting and Services | π©πͺ Cologne | 838 | 2000 |
| 8 | [EY ifb](https://www.tamtam.ai/c/ey-ifb) (ey.com)
Helps banks and insurance companies transform finance, risk, and digital functions. Maps supervisory, management, accounting, and risk demands into advanced IT architectures. | Business Consulting and Services | π©πͺ Cologne | 694 | 1989 |
| 9 | [GΓRG](https://www.tamtam.ai/c/gorg) (goerg.de)
A leading German business law firm with expertise in insolvency, restructuring, corporate, real estate, and procurement law, serving clients nationally and internationally | Law Practice | π©πͺ Cologne | 685 | 1996 |
| 10 | [Kienbaum](https://www.tamtam.ai/c/kienbaum) (kienbaum.com)
A leadership advisory and management consulting firm that brings potential to life by matching individuals and companies for a sustainable future | Business Consulting and Services | π©πͺ Cologne | 650 | 1945 |
| 11 | [Qvest Global](https://www.tamtam.ai/c/qvest-global) (qvest.com)
A global technology consultancy specializing in digital transformation, system architecture, ICT integration, and software development for media industry innovation | Technology, Information and Media | π©πͺ Cologne | 457 | 1991 |
| 12 | [Osborne Clarke Germany](https://www.tamtam.ai/c/osborne-clarke-germany) (osborneclarke.com)
Dynamic law firm supporting clients in navigating the future, providing legal expertise in various sectors Specializing in digitalization, decarbonization, and urban dynamics for tomorrow's success | Law Practice | π©πͺ Cologne | 324 | 2001 |
| 13 | [Bertrandt IngenieurbΓΌro GmbH](https://www.tamtam.ai/c/bertrandt-ingenieurburo-gmbh)
Architecture and planning company based in Cologne, Germany, specializing in innovative engineering solutions | Architecture and Planning | π©πͺ Cologne | 319 | |
| 14 | [Seitz](https://www.tamtam.ai/c/seitz) (seitzpartner.de)
A partnership with 120 lawyers and tax consultants advising in corporate law, M&A, labor & employment law, and tax law globally | Legal Services | π©πͺ Cologne | 237 | |
| 15 | [infodas](https://www.tamtam.ai/c/infodas) (infodas.com)
Founded in 1974, specializes in cyber and information security, offering consulting, high-security products, and IT security services to various sectors in Germany | IT Services and IT Consulting | π©πͺ Cologne | 214 | 1974 |
| 16 | [Solidaris Unternehmensgruppe](https://www.tamtam.ai/c/solidaris-unternehmensgruppe) (solidaris.de)
Solidaris specializes in tailored auditing and consulting services for the healthcare and social sectors, prioritizing ethical values and industry-specific expertise | Business Consulting and Services | π©πͺ Cologne | 190 | 1932 |
| 17 | [nexum AG](https://www.tamtam.ai/c/nexum-ag) (nexum.com)
A leading consultancy and agency specializing in digital communication, interaction, and transaction With a focus on user experience and cutting-edge technologies, serving top clients internationally | Internet Publishing | π©πͺ Cologne | 188 | 2007 |
| 18 | [TIMETOACT Software & Consulting GmbH](https://www.tamtam.ai/c/timetoact-software-and-consulting-gmbh) (atvantage.com)
Trusted advisor providing future-proof solutions for mid-sized businesses, insurance companies, and government agencies, specializing in cloud transformation, digital workplace, BI, and more | IT Services and IT Consulting | π©πͺ Cologne | 186 | 1998 |
| 19 | [Gesellschaft fΓΌr Anlagen- und Reaktorsicherheit gGmbH](https://www.tamtam.ai/c/gesellschaft-fur-anlagen-und-reaktorsicherheit-ggmbh) (grs.de)
A non-profit research organization focusing on nuclear and conventional plant safety, providing expertise, research, and consulting services globally | Research Services | π©πͺ Cologne | 185 | 1977 |
| 20 | [lise GmbH](https://www.tamtam.ai/c/lise-gmbh) (lise.de)
Provider of custom software development and IT consulting services in Cologne, focusing on innovative solutions, agile project management, and Microsoft Gold Certified expertise | Software Development | π©πͺ Cologne | 107 | 1999 |
| 21 | [EO Executives - Results through people](https://www.tamtam.ai/c/eo-executives-results-through-people) (eoexecutives.com)
A team of Executive Search professionals using innovative tool to transform recruitment, ensuring 96% retention over 12 months | Staffing and Recruiting | π©πͺ Cologne | 66 | 1997 |
| 22 | [Albatros Versicherungsdienste GmbH](https://www.tamtam.ai/c/albatros-versicherungsdienste-gmbh) (albatros.de)
An insurance broker and service provider specializing in advising companies and individuals on insurance, pension provision, and finance, with a strong presence in national and international markets | Insurance | π©πͺ Cologne | 61 | 1980 |
| 23 | [crossconsulting](https://www.tamtam.ai/c/crossconsulting) (crossconsulting.de)
An independent consulting firm specializing in financial services, offering strategic solutions with implementation services, risk-sharing options, and access to digitalization and personnel experts | Business Consulting and Services | π©πͺ Cologne | 53 | 2000 |
| 24 | [SIDESTREAM](https://www.tamtam.ai/c/sidestream) (sidestream.tech)
Tailored software solutions with focus on quality, security, and scalability Specializing in microservices, big data challenges, and long-term value creation for clients globally | Software Development | π©πͺ Cologne | 28 | 2019 |
| 25 | [AAA Auctor Actor Advisor GmbH](https://www.tamtam.ai/c/aaa-auctor-actor-advisor-gmbh) (3-a-3.de)
Specialized consultancy in the insurance industry offering strategic thinking, independent guidance, and tailored solutions for organizational transformation through innovative approaches and expertise | Business Consulting and Services | π©πͺ Cologne | 27 | 2002 |
| 26 | [KCIG](https://www.tamtam.ai/c/kcig) (kcig.eu)
Innovative company providing managerial and technical support services to automotive and defense sectors, driving product development activities for multinational manufacturers | Strategic Management Services | π©πͺ Cologne | 13 | 2007 |
| 27 | [CFgO](https://www.tamtam.ai/c/cfgo) (cfgo.de)
Specializing in interim CFO services and finance project management, we support companies in various sectors with tailored solutions and expert guidance | Business Consulting and Services | π©πͺ Cologne | 12 | 2018 |
| 28 | [Cognotekt](https://www.tamtam.ai/c/cognotekt) (cognotekt.com)
The company specializes in identifying and addressing common issues in AI, Data Science, and Biotech projects to ensure successful outcomes for clients | IT Services and IT Consulting | π©πͺ Cologne | 8 | 2013 |
| 29 | [Healing Hotels of the World](https://www.tamtam.ai/c/healing-hotels-of-the-world) (healinghotelsoftheworld.com)
A global hospitality brand focusing on holistic healing excellence, offering consulting, curated hotel collections, holistic wellness audits, education, and events | Hospitality | π©πͺ Cologne | 7 | 2007 |
| 30 | [Making Sales Easy for engineers](https://www.tamtam.ai/c/making-sales-easy-for-engineers) (makingsaleseasy.fr)
Facilitates sales and service excellence workshops helping engineering companies adopt customer-centric approaches for repeatable business success. | Professional Training and Coaching | π©πͺ Cologne | 1 | |
## 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 11, 2026.
## More company lists in Cologne
- [The largest companies in Cologne](https://www.tamtam.ai/l/largest-companies-cologne) (464)
- [Multinational companies in Cologne](https://www.tamtam.ai/l/multinational-companies-cologne) (135)
- [SaaS companies in Cologne](https://www.tamtam.ai/l/saas-companies-cologne) (51)
- [Financial services firms in Cologne](https://www.tamtam.ai/l/financial-services-firms-cologne) (47)
- [Software Development companies in Cologne](https://www.tamtam.ai/l/software-development-companies-cologne) (44)
- [Retail chains in Cologne](https://www.tamtam.ai/l/retail-chains-cologne) (40)
- [Companies with in-house R&D in Cologne](https://www.tamtam.ai/l/r-and-d-companies-cologne) (35)
- [Critical infrastructure operators in Cologne](https://www.tamtam.ai/l/critical-infrastructure-operators-cologne) (31)
- [IT services companies in Cologne](https://www.tamtam.ai/l/it-services-companies-cologne) (31)
- [Companies with a mobile app in Cologne](https://www.tamtam.ai/l/companies-with-mobile-app-cologne) (30)
- [IT Services and IT Consulting companies in Cologne](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-cologne) (30)
- [Financial Services companies in Cologne](https://www.tamtam.ai/l/financial-services-companies-cologne) (28)
- [Consulting firms in Cologne](https://www.tamtam.ai/l/consulting-firms-cologne) (26)
- [Corporate groups and holding companies in Cologne](https://www.tamtam.ai/l/holding-companies-cologne) (25)
## The same list elsewhere in Germany
- [Professional services firms in Germany](https://www.tamtam.ai/l/professional-services-firms-germany) (690)
- [Professional services firms in Bavaria](https://www.tamtam.ai/l/professional-services-firms-bavaria) (154)
- [Professional services firms in North Rhine-Westphalia](https://www.tamtam.ai/l/professional-services-firms-north-rhine-westphalia) (147)
- [Professional services firms in Baden-WΓΌrttemberg](https://www.tamtam.ai/l/professional-services-firms-baden-wurttemberg) (90)
- [Professional services firms in Hesse](https://www.tamtam.ai/l/professional-services-firms-hesse) (88)
- [Professional services firms in Munich](https://www.tamtam.ai/l/professional-services-firms-munich) (91)
- [Professional services firms in Berlin](https://www.tamtam.ai/l/professional-services-firms-berlin) (78)
- [Professional services firms in Hamburg](https://www.tamtam.ai/l/professional-services-firms-hamburg) (58)
- [Professional services firms in Frankfurt](https://www.tamtam.ai/l/professional-services-firms-frankfurt) (36)
- [Professional services firms in DΓΌsseldorf](https://www.tamtam.ai/l/professional-services-firms-dusseldorf) (28)
- [Professional services firms in Stuttgart](https://www.tamtam.ai/l/professional-services-firms-stuttgart) (25)
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Source: https://www.tamtam.ai/l/professional-services-firms-cologne