The consulting firms in Essonne are predominantly mid-sized companies specialized in engineering and IT services. APIXIT provides cybersecurity, infrastructure, and cloud solutions. NBTECH offers technical studies and industrial engineering for various sectors. ADVANCE Engineering focuses on complex nuclear projects, and DSI GROUP is an engineering services company emphasizing staff development.
Most of these firms, such as G4 in information management, Cyrias in cloud solution integration, and EZYTAIL in supply chain management, were founded between 2006 and 2018. A notable concentration of headquarters is observed in Les Ulis and Massy, indicating these areas as key hubs for consulting activities within the department.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 303 | ||||
| 2 | 254 | ||||
| 3 | 244 | ||||
| 4 |
DSI GROUPgroup-dsi.com
An engineering services company within the DSI GROUP, prioritizing staff development and customer relationships with a focus on flexibility and customer loyalty |
225 | |||
| 5 |
ADVANCE Engineeringadvance-eng.fr
ADVANCE Engineering, a subsidiary of CERAP Prévention, specializes in providing technical engineering services for complex projects in the nuclear sector |
205 | |||
| 6 |
CERC (Cardiovascular European Research Center)cerc-europe.org
A leading European CRO founded by experienced physicians, specializing in clinical research, innovative techniques, and supporting young scientific leaders globally |
84 | |||
| 7 |
PROTECTICprotectic.fr
Engineering company, intervening in large-scale industrial projects (aeronautics, space, defense, energy, transport). Accompanying major industrial players in product development. |
50 | |||
| 8 |
DAF CONSEILdafconseil.com
Specializes in automotive technical training, support, consulting, engineering, and web-based SaaS solutions for repair industry professionals. |
49 | |||
| 9 |
SOL CONSEILvertical-sea.com
Geotechnical consulting firm with over 35 years of experience offering services such as soil investigation, foundation design, and project management |
43 | |||
| 10 |
Junior CentraleSupélecjuniorcs.fr
Junior CentraleSupélec is a student-run consulting firm offering services in digital, electronics, strategy, data analytics, and environment sectors with over 4500 future engineering graduates |
42 | |||
| 11 |
Cyriascyrias.com
Consulting and integration company specializes in assisting Purchasing and Finance Departments with implementing Cloud Solutions, offering expertise in digital transformation projects |
42 | |||
| 12 | 41 | ||||
| 13 |
EZYTAILezytail.com
Industrial supply chain management providing back office software, mutualized logistics, transportation solutions, ERP integration, and consulting for new and existing multi-channel retailing businesses. |
41 | |||
| 14 | 39 | ||||
| 15 |
CREATYM Francecreatym-france.com
Specialized in engineering services, technical consulting, and studies for industrial actors, prioritizing human-centric approach, teamwork, and passion for technology to enhance client services |
36 | |||
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. | |||||
| 16 |
CONSTRUIREconstruire-sa.fr
The company provides engineering services for various industries, offering expertise in developing innovative solutions and technical support |
31 | |||
| 17 |
IDETEC Environnementsites.google.com
IDETEC Environment is a leading player in monitoring engineering, providing services from network diagnostics to site supervision, with a focus on quality and accreditation |
30 | |||
| 18 |
Infass Systèmesinfass.com
Development of tailored software solutions for insurance, temporary work, petroleum storage, and point-to-point transport industries with specialized expertise. |
29 | |||
| 19 |
Aryason Consultingaryason.fr
Massy based firm specialized in providing professional advice on computer systems and software solutions with seven years of industry experience. |
26 | |||
| 20 |
CPP-SYSTEM
A consulting and IT service company operating in Madagascar and France, specialized in digital payment, customer loyalty, and management solutions Coming soon! |
24 | |||
| 21 |
iNet Systeminet-system.com
A Paris-based company offers Apple technology advice, product resale, installation, integration, support contracts, and software development services |
14 | |||
| 22 |
IPC - Groupe Gengisipc-gengis.fr
A reliable partner providing tailored solutions in structural engineering since 1998, navigating complex regulations and economic challenges with a focus on client needs |
14 | |||
| 23 |
Soler Conseilsolerconseil.fr
A geotechnical engineering consulting firm with a laboratory, offering services from project initiation to completion, led by experienced professionals |
10 | |||
| 24 |
Sol Paysagesolpaysage.fr
Sol Paysage is an environmental consultancy specializing in landscape design, soil, and biodiversity They work on various scales from large territories to gardens, focusing on sustainable development |
10 | |||
| 25 | 10 | ||||
| 26 | 8 | ||||
| 27 | 7 | ||||
| 28 |
Newasysnewasys.com
NEWASYS provides water consulting services to industries, communities, and private entities, focusing on reducing water consumption and promoting the reuse of non-conventional water sources |
7 | |||
| 29 |
ATLANTIS GEOTECHNIQUEatlantis-geotechnique.fr
Expert geotechnical consulting office providing comprehensive soil studies, hydrogeological analysis, and pollution assessments for construction, infrastructure, and land development projects across France. |
6 | |||
| 30 |
ACTUAL PME, Conseil et Expertise Comptableactualpme.fr
A consulting and accounting firm with two agencies in Essonne, offering financial, legal, tax, management, and social advisory services to businesses |
6 | |||
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More company lists in the Essonne department
- The largest companies in the Essonne department 1,149
- Companies with in-house R&D in the Essonne department 198
- Multinational companies in the Essonne department 156
- Manufacturers in the Essonne department 127
- Hardware manufacturers in the Essonne department 114
- Distributors and wholesalers in the Essonne department 76
- IT Services and IT Consulting companies in the Essonne department 70
- Professional services firms in the Essonne department 68
- Public sector organisations in the Essonne department 66
- Aerospace and defence companies in the Essonne department 65
- IT services companies in the Essonne department 60
- Retail chains in the Essonne department 59
- Construction companies in the Essonne department 56
- Software Development companies in the Essonne department 51
- Pharmaceutical companies in the Essonne department 45
- Electronics and semiconductor companies in the Essonne department 44
- Research institutes in the Essonne department 42
- Events Services companies in the Essonne department 41
- SaaS companies in the Essonne department 41
- Family-owned companies in the Essonne department 38
- Contract manufacturers in the Essonne department 35
- Research Services companies in the Essonne department 35
- Critical infrastructure operators in the Essonne department 32
- Education providers in the Essonne department 30
The same list elsewhere in France
- Consulting firms in France 4,252
- Consulting firms in Île-de-France 2,408
- Consulting firms in the Hauts-de-Seine department 563
- Consulting firms in Auvergne-Rhône-Alpes 412
- Consulting firms in the Rhône department 242
- Consulting firms in Occitanie 236
- Consulting firms in Provence-Alpes-Côte d'Azur 233
- Consulting firms in Nouvelle-Aquitaine 166
- Consulting firms in Grand Est 165
- Consulting firms in Hauts-de-France 161
- Consulting firms in Pays de la Loire 161
- Consulting firms in the Haute-Garonne department 145
- Consulting firms in the Bouches-du-Rhône department 129
- Consulting firms in the Nord department 115
- Consulting firms in Brittany 99
- Consulting firms in the Loire-Atlantique department 94
- Consulting firms in the Gironde department 82
- Consulting firms in the Yvelines department 72
- Consulting firms in Paris 1,532
- Consulting firms in Lyon 163
- Consulting firms in Toulouse 98
- Consulting firms in Boulogne-Billancourt 88
- Consulting firms in Levallois-Perret 83
- Consulting firms in Neuilly-sur-Seine 73