These professional services firms in Stuttgart offer a range of specialized expertise, from large-scale engineering and IT solutions to legal and management consulting. The companies listed are primarily mid-sized to large organizations. For instance, DEKRA provides expert safety services worldwide, GFT Technologies designs advanced data and AI transformation solutions, Exyte specializes in high-tech facility construction, and Drees & Sommer offers consulting for real estate and infrastructure.
A notable pattern among these firms is their strong focus on technology, digitalization, and sustainability across various sectors. Many of these companies, such as GFT Technologies, Diconium, P3, and Porsche Consulting, were founded between the mid-1980s and the mid-1990s, indicating a period of significant growth in specialized consulting and IT services in the region.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 49,000 | ||||
| 2 |
GFT Technologiesgft.com
Design advanced data, AI transformation solutions, modernize tech architectures, and develop next-gen core systems for industry leaders globally. |
13,400 | |||
| 3 | 4,994 | ||||
| 4 |
Drees & Sommerdreso.com
Provides consulting and implementation services for real estate, infrastructure, and industrial markets, focusing on sustainable, innovative, and economically viable solutions for clients. |
4,784 | |||
| 5 |
Diconiumweare.diconium.com
Digital transformation partner specializing in strategy, commerce platform development, and data-driven intelligence across a diverse range of industries with a global footprint |
2,584 | |||
| 6 |
RSM Ebner Stolzebnerstolz.de
A leading independent auditing and consulting firm in Germany offering multidisciplinary services such as audit, tax, legal, and business consulting to mid-sized businesses |
1,878 | |||
| 7 |
P3p3-group.com
P3 group delivers innovative solutions to complex technology challenges for clients worldwide, ensuring tangible value through tailored implementation processes and continuous guidance |
1,791 | |||
| 8 |
Fichtnerfichtner.de
The company is an independent engineering and consultancy firm specializing in energy, infrastructure, renewable energies, environmental protection, water resources, and IT consultancy worldwide |
1,612 | |||
| 9 |
Horváthhorvath-partners.com
Global management consultancy specializing in transformation, performance management, and digitalization to drive sustainable success and long-term value creation. |
1,554 | |||
| 10 |
Porsche Consultingporsche-consulting.com
Consulting firm delivering strategic, pragmatic solutions to enhance competitive advantage across automotive, aerospace, engineering, life sciences, finance, retail, and construction sectors. |
1,053 | |||
| 11 |
Gleiss Lutzgleisslutz.com
A leading German law firm with 350 lawyers operates in various cities offering full-service commercial legal advice globally with efficient team structures |
915 | |||
| 12 |
DEKRA Germanydekra.de
DEKRA is a global expert organization focused on safety, offering independent expert services in vehicle inspections, safety consulting, product certification, and more |
769 | |||
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. | |||||
| 13 | 747 | ||||
| 14 |
KPMG Lawkpmg-law.de
A dynamic and internationally-oriented law practice offering multidisciplinary legal consulting services through a network of over 270 lawyers in Germany |
635 | |||
| 15 |
DEKRA Digital & Product Solutionsdekra.com
The company specializes in creating intelligent testing solutions for various industries to ensure safety and security in the digitalized world |
631 | |||
| 16 |
DEKRA Arbeit Group Germanydekra-arbeit.de
Delivers tailored staffing services, expert migration assistance, and human resources management including direct placement and executive search across twenty-four countries globally. |
524 | |||
| 17 |
GTÜ Gesellschaft für Technische Überwachung mbHgtue.de
Germany's largest officially recognized surveillance organization for freelance automotive experts, offering alternative vehicle inspections and safety checks through over 2,500 professionals in 12,000 locations |
507 | |||
| 18 |
Werner Sobeklinktr.ee
Global engineering and design studio with a focus on lightweight structures, sustainable building concepts, and premium design integrated with green technologies |
355 | |||
| 19 |
HWS GmbH & Co. KGhws.de
A trusted partner offering top quality tax consultancy, legal advice, audits, and corporate consulting services to medium-sized enterprises, family companies, freelancers, and individuals |
327 | |||
| 20 |
Da Vinci Engineering GmbHdavinci.de
A trusted development partner in automotive engineering, providing top-class expertise and services with a focus on electrics, electronics, and software development |
219 | |||
| 21 |
BANSBACH GmbHbansbach-gruppe.de
The company provides auditing, tax, legal, and business consulting services, focusing on building strong client relationships to provide thorough and expert advice |
212 | |||
| 22 |
Auer Weberauer-weber.de
Architectural firm specializing in designing new buildings and renovations for public and private clients, with a focus on international projects |
86 | |||
| 23 |
valux AGvalux-ag.de
Specializing in high-quality property valuation reports for various asset classes since 2019, with expertise in tailored solutions for financial institutions, businesses, and institutional investors Operating primarily in Southern Germany but serving clients nationwide |
12 | |||
| 24 |
boltzplatz - numerical plasma dynamicsboltzplatz.eu
Engineering & consulting services specializing in numerical modelling & simulation for high-tech industries, focusing on rarefied gas & plasma dynamics applications |
4 | |||
| 25 |
MAYR TEAMWORK GmbHmayr-teamwork.de
Independent consulting company offering business management consulting and services in process optimization, controlling, IT, and communication through a network of specialists |
2 | |||
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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 11, 2026.
More company lists in Stuttgart
- The largest companies in Stuttgart 306
- Multinational companies in Stuttgart 99
- Companies with in-house R&D in Stuttgart 51
- Software Development companies in Stuttgart 37
- Financial services firms in Stuttgart 33
- SaaS companies in Stuttgart 33
- Critical infrastructure operators in Stuttgart 28
- Financial Services companies in Stuttgart 27
- Manufacturers in Stuttgart 25
The same list elsewhere in Germany
- Professional services firms in Germany 690
- Professional services firms in Bavaria 154
- Professional services firms in North Rhine-Westphalia 147
- Professional services firms in Baden-Württemberg 90
- Professional services firms in Hesse 88
- Professional services firms in Munich 91
- Professional services firms in Berlin 78
- Professional services firms in Hamburg 58
- Professional services firms in Frankfurt 36
- Professional services firms in Cologne 30
- Professional services firms in Düsseldorf 28