# Top 28 professional services firms in the Haut-Rhin department
Tamtam tracks 28 professional services firms headquartered in the Haut-Rhin department. This list ranks all of them by number of employees on LinkedIn, led by Clemessy, B-Hive Engineering and DER. Their median headcount is 19. Half of them were founded in 2009 or later. The most common headquarters are Mulhouse (13) and Colmar (3).
The professional services firms in Haut-Rhin include a mix of established companies and younger firms, spanning various specializations. Clemessy, with 2405 employees, focuses on electrical and mechanical engineering for industrial installations. B-Hive Engineering offers engineering solutions across energy, transport, and IT, while Ricoh Industrie France provides IT services and document management. Accounting is well-represented by firms like GROUPE COFIME and Hans & associ茅s.
A notable pattern is the concentration of companies in Mulhouse, which serves as the headquarters for many of these firms, including Sofitex, a staffing and recruiting specialist, and LCMH, a digital services provider. Other significant locations include Colmar and Saint-Louis. The sector also shows a blend of engineering, IT, and financial expertise, catering to diverse business needs.
馃嚝馃嚪 Haut-Rhin 路 28 companies 路 Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Clemessy](https://www.tamtam.ai/c/clemessy) (clemessy.com)
Specializing in electrical and mechanical engineering, Clemessy designs, installs, and maintains systems for various industries worldwide, with a strong focus on industrial installations | Automation Machinery Manufacturing | 馃嚝馃嚪 Mulhouse | 2,405 | |
| 2 | [B-Hive Engineering](https://www.tamtam.ai/c/b-hive-engineering) (b-hive.fr)
Offers innovative and effective engineering solutions across diverse sectors including energy, transport, telecom, life sciences, industry, construction, and IT. | Business Consulting and Services | 馃嚝馃嚪 Mulhouse | 352 | 2017 |
| 3 | [DER](https://www.tamtam.ai/c/der) (groupe-der.com)
Specialized in building control, using infiltrometry and thermography to detect thermal losses, validate RT2012 and BBC labels, working on various projects | Environmental Services | 馃嚝馃嚪 Saint-Louis | 264 | |
| 4 | [Ricoh Industrie France S.A.S](https://www.tamtam.ai/c/ricoh-industrie-france-s-a-s) (ricoh-thermal.com)
A global technology company offering innovative services and technologies in document management, IT services, printing solutions, visual communications, digital cameras, and industrial systems for 80 years | IT Services and IT Consulting | 馃嚝馃嚪 Wettolsheim | 205 | 1987 |
| 5 | [GROUPE COFIME](https://www.tamtam.ai/c/groupe-cofime) (hlb-groupecofime.com)
Provides comprehensive accounting, auditing, legal, and social expertise alongside strategic business consulting, wealth management, and international development support through a specialized professional network. | Accounting | 馃嚝馃嚪 Colmar | 202 | 1963 |
| 6 | [Hans & associ茅s](https://www.tamtam.ai/c/hans-and-associes) (hans-associes.fr)
Independent group with 400+ experts supporting over 9,000 companies across diverse sectors including agriculture, health, construction, and services. | Accounting | 馃嚝馃嚪 Bollwiller | 198 | 1985 |
| 7 | [Sofitex](https://www.tamtam.ai/c/sofitex-mulhouse) (sofitex.fr)
With over 30 years in HR, this international network specializes in temporary work and permanent placements throughout France, Germany, Switzerland, and Luxembourg | Staffing and Recruiting | 馃嚝馃嚪 Mulhouse | 194 | 1992 |
| 8 | [LCMH](https://www.tamtam.ai/c/lcmh) (lcmh.fr)
A digital services provider founded in 2009, offering a range of solutions to meet the digital needs of businesses | IT Services and IT Consulting | 馃嚝馃嚪 Mulhouse | 85 | 2009 |
| 9 | [EFOR (formerly Altogen)](https://www.tamtam.ai/c/efor-formerly-altogen) (efor-group.com)
Engineering and consulting services for pharmaceutical, biotechnology, and medical device companies, supporting startups and established businesses with expert teams. | Business Consulting and Services | 馃嚝馃嚪 Mulhouse | 72 | 2016 |
| 10 | [MEENT](https://www.tamtam.ai/c/meent) (meent.group)
A leading life sciences company providing tailored solutions in engineering, clinical research, R&D, distribution, and access to top scientific and technical experts | Business Consulting and Services | 馃嚝馃嚪 Brunstatt-Didenheim | 46 | 2023 |
| 11 | [Wagner & Associ茅s](https://www.tamtam.ai/c/wagner-and-associes) (wagnerassocies.fr)
Provides personalized accounting, auditing, legal work, payroll, business creation support, financial forecasting, and management assistance for companies. | Accounting | 馃嚝馃嚪 Colmar | 46 | 1985 |
| 12 | [ViaSph猫re](https://www.tamtam.ai/c/viasphere) (viasphere.fr)
A French group offering a wide range of services to individuals and businesses, including home assistance, childcare, maintenance, and technical support | Individual and Family Services | 馃嚝馃嚪 Mulhouse | 46 | |
| 13 | [Patrimoine Est Finance](https://www.tamtam.ai/c/patrimoine-est-finance) (astoriafinance.com)
A financial solutions company offering personalized wealth management services for individuals and professionals, focusing on insurance, savings, and investment strategies in the Grand-Est region | Insurance | 馃嚝馃嚪 Mulhouse | 26 | 2000 |
| 14 | [Cabinet FOLTZER-FLACH-SCHEER et associ茅s](https://www.tamtam.ai/c/cabinet-foltzer-flach-scheer-et-associes) (cabinet-ffsa.fr)
Support for entrepreneurs and business owners through creation assistance, accounting, social management, auditing, wealth management, and IPO guidance. | Accounting | 馃嚝馃嚪 Mulhouse | 19 | 1996 |
| 15 | [Nartex](https://www.tamtam.ai/c/nartex) (nartex.fr)
Development of custom mobile and web applications including professional tools, industrial solutions, and connected device apps with specialized native technologies. | Software Development | 馃嚝馃嚪 Mulhouse | 14 | 2011 |
| 16 | [PROMEA SAS](https://www.tamtam.ai/c/promea-sas) (promea.eu)
Independent provider of gear transmission consulting, spare parts, technical assistance, inspection, and maintenance services for high-power gear units worldwide. | Mechanical Or Industrial Engineering | 馃嚝馃嚪 Aspach-Michelbach | 14 | 2015 |
| 17 | [Gexperteam Expertise-Comptable](https://www.tamtam.ai/c/gexperteam-expertise-comptable) (gexperteam.fr)
Provides professional accounting, auditing, and consulting services focused on adding value and supporting business financial management and compliance. | Accounting | 馃嚝馃嚪 Mulhouse | 14 | 2020 |
| 18 | [Agence 3ma group](https://www.tamtam.ai/c/agence-3ma-group) (agence.3magroup.com)
A creative agency offering impactful communication solutions from strategy to physical and digital creation, driven by client stories for collective success | Advertising Services | 馃嚝馃嚪 Rouffach | 13 | 2020 |
| 19 | [EFOR (formerly Mealys)](https://www.tamtam.ai/c/efor-formerly-mealys) (mealys.fr)
Specialist in industrial equipment, part of Efor group, providing strategic consulting and engineering services in energy, oil & gas, heavy industries, and manufacturing | Business Consulting and Services | 馃嚝馃嚪 Mulhouse | 12 | 2016 |
| 20 | [GRP Formations](https://www.tamtam.ai/c/grp-formations) (grpformations.com)
Since 1995, this training organization supports individuals and professionals in developing skills, focusing on industry, logistics, and construction sectors Their expertise includes certifying courses, safety training, leadership development, customized programs, and various services to assist in enhancing skills and promoting safety | Professional Training and Coaching | 馃嚝馃嚪 Kingersheim | 12 | 1995 |
| 21 | [Dexeris Conseils](https://www.tamtam.ai/c/dexeris-conseils) (dexeris.fr)
Providing accounting, payroll, legal support, consulting, audit, and training services to business leaders ensuring compliance and peace of mind. | Accounting | 馃嚝馃嚪 Thann | 11 | 1975 |
| 22 | [Cabinet LINDEN](https://www.tamtam.ai/c/cabinet-linden)
Accounting and financial analysis firm specializing in expert consulting services for businesses | Accounting | 馃嚝馃嚪 Mulhouse | 10 | 1976 |
| 23 | [CABINET MUNCH-TRAENDLIN](https://www.tamtam.ai/c/cabinet-munch-traendlin) (c-mt.fr)
The company provides daily support to professional and individual clients in the areas of tax, social, and legal matters in Mulhouse and Altkirch | Accounting | 馃嚝馃嚪 Sausheim | 8 | 2015 |
| 24 | [DUALYS CONSEIL CENTRE ALSACE](https://www.tamtam.ai/c/dualys-conseil-centre-alsace) (dualys.fr)
An accounting firm in Central Alsace providing serious and thorough services to clients, focusing on teamwork, human connection, and expertise | Accounting | 馃嚝馃嚪 Colmar | 8 | 2016 |
| 25 | [FAEC BRECH ET ASSOCIES](https://www.tamtam.ai/c/faec-brech-et-associes) (faec.fr)
An accounting company located in Mulhouse, France, providing financial services to clients in the Grandest region | Accounting | 馃嚝馃嚪 Mulhouse | 7 | |
| 26 | [Adscientis](https://www.tamtam.ai/c/adscientis) (adscientis.com)
A world expert in Inverse Chromatography techniques, providing services to innovate, develop, understand, and solve R&D problems for various industries | Research Services | 馃嚝馃嚪 Wittelsheim | 5 | 2000 |
| 27 | [Dirigeants Conseil Alsace](https://www.tamtam.ai/c/dirigeants-conseil-alsace) (dirigeantsconseilalsace.fr)
A collaboration of experts offering consulting, interim management, and training services in various areas such as business development, HR, and quality strategies | Business Consulting and Services | 馃嚝馃嚪 Algolsheim | 3 | |
| 28 | [Kawagency](https://www.tamtam.ai/c/kawagency) (kawagency.fr)
Specialized in website and e-commerce design, Kawagency creates digital tools to enhance online presence and business operations | Internet Publishing | 馃嚝馃嚪 Illhaeusern | 3 | 2020 |
## 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 the Haut-Rhin department
- [The largest companies in the Haut-Rhin department](https://www.tamtam.ai/l/largest-companies-haut-rhin) (555)
- [Multinational companies in the Haut-Rhin department](https://www.tamtam.ai/l/multinational-companies-haut-rhin) (78)
- [Companies with in-house R&D in the Haut-Rhin department](https://www.tamtam.ai/l/r-and-d-companies-haut-rhin) (66)
- [Manufacturers in the Haut-Rhin department](https://www.tamtam.ai/l/manufacturers-haut-rhin) (56)
- [Retail chains in the Haut-Rhin department](https://www.tamtam.ai/l/retail-chains-haut-rhin) (50)
- [Family-owned companies in the Haut-Rhin department](https://www.tamtam.ai/l/family-owned-companies-haut-rhin) (46)
- [Public sector organisations in the Haut-Rhin department](https://www.tamtam.ai/l/public-sector-organisations-haut-rhin) (44)
- [Distributors and wholesalers in the Haut-Rhin department](https://www.tamtam.ai/l/distributors-and-wholesalers-haut-rhin) (30)
- [Hardware manufacturers in the Haut-Rhin department](https://www.tamtam.ai/l/hardware-companies-haut-rhin) (28)
- [Construction companies in the Haut-Rhin department](https://www.tamtam.ai/l/construction-companies-haut-rhin) (27)
## The same list elsewhere in France
- [Professional services firms in France](https://www.tamtam.ai/l/professional-services-firms-france) (6,610)
- [Professional services firms in 脦le-de-France](https://www.tamtam.ai/l/professional-services-firms-ile-de-france) (3,377)
- [Professional services firms in Auvergne-Rh么ne-Alpes](https://www.tamtam.ai/l/professional-services-firms-auvergne-rhone-alpes) (711)
- [Professional services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/professional-services-firms-hauts-de-seine) (629)
- [Professional services firms in Provence-Alpes-C么te d'Azur](https://www.tamtam.ai/l/professional-services-firms-provence-alpes-cote-dazur) (433)
- [Professional services firms in the Rh么ne department](https://www.tamtam.ai/l/professional-services-firms-rhone) (400)
- [Professional services firms in Occitanie](https://www.tamtam.ai/l/professional-services-firms-occitanie) (399)
- [Professional services firms in Grand Est](https://www.tamtam.ai/l/professional-services-firms-grand-est) (316)
- [Professional services firms in Nouvelle-Aquitaine](https://www.tamtam.ai/l/professional-services-firms-nouvelle-aquitaine) (308)
- [Professional services firms in Hauts-de-France](https://www.tamtam.ai/l/professional-services-firms-hauts-de-france) (260)
- [Professional services firms in Pays de la Loire](https://www.tamtam.ai/l/professional-services-firms-pays-de-la-loire) (253)
- [Professional services firms in the Bouches-du-Rh么ne department](https://www.tamtam.ai/l/professional-services-firms-bouches-du-rhone) (249)
- [Professional services firms in the Haute-Garonne department](https://www.tamtam.ai/l/professional-services-firms-haute-garonne) (208)
- [Professional services firms in the Nord department](https://www.tamtam.ai/l/professional-services-firms-nord) (178)
- [Professional services firms in Brittany](https://www.tamtam.ai/l/professional-services-firms-brittany) (167)
- [Professional services firms in the Loire-Atlantique department](https://www.tamtam.ai/l/professional-services-firms-loire-atlantique) (158)
- [Professional services firms in the Gironde department](https://www.tamtam.ai/l/professional-services-firms-gironde) (151)
- [Professional services firms in Normandy](https://www.tamtam.ai/l/professional-services-firms-normandy) (114)
- [Professional services firms in the Yvelines department](https://www.tamtam.ai/l/professional-services-firms-yvelines) (108)
- [Professional services firms in Paris](https://www.tamtam.ai/l/professional-services-firms-paris) (2,241)
- [Professional services firms in Lyon](https://www.tamtam.ai/l/professional-services-firms-lyon) (265)
- [Professional services firms in Toulouse](https://www.tamtam.ai/l/professional-services-firms-toulouse) (139)
- [Professional services firms in Marseille](https://www.tamtam.ai/l/professional-services-firms-marseille) (123)
- [Professional services firms in Boulogne-Billancourt](https://www.tamtam.ai/l/professional-services-firms-boulogne-billancourt) (102)
## The same list elsewhere
- [Professional services firms in the world](https://www.tamtam.ai/l/professional-services-firms-in-the-world) (24,737)
- [Professional services firms in Europe](https://www.tamtam.ai/l/professional-services-firms-in-europe) (13,698)
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Source: https://www.tamtam.ai/l/professional-services-firms-haut-rhin