These professional services firms in Aix-en-Provence are predominantly mid-sized to large companies, with a strong focus on IT services, engineering, and environmental solutions. Ortec Group, with 4388 employees, provides multidisciplinary services for industry, energy, and environment. Key Performance Consulting (KPC) offers technology consulting and services for large project integration, while ECP - Project Management .INtelligence specializes in project management consulting for sectors like Oil & Gas and Nuclear. PMSm is a leader in medical assistance for industrial environments.
The data shows a significant concentration of companies founded in the early 2000s, such as REACTIS Group (2001), ARIAL Industries (2001), and Systerel (2001), indicating a period of growth and establishment for professional services in the region. Many of these firms also serve specialized and critical sectors like defense, aerospace, and energy.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Ortec Grouportec-group.com
Provides multidisciplinary services for industry, energy, and environment, including maintenance, new works, environmental services, facilities management, logistics, and engineering consulting. |
4,388 | |||
| 2 |
Sonovision - Ortec Groupsonovisiongroup.com
Experts process complex systems content, enriching products with innovative solutions throughout their lifecycle, from design to technical content and training for optimized field operations. |
568 | |||
| 3 |
Key Performance Consulting (KPC)keyperformance-consulting.com
Global player in upstream and integration phases for systems, offering technology consulting and services for large project integration and business process improvement. |
474 | |||
| 4 |
ECP - Project Management .INtelligenceassystem.com
Project Management Consulting Group specializing in Oil & Gas, Nuclear, Energy, Defense, Infrastructures, Chemistry, Metallurgy sectors Services include project management, cost estimation, risk management, and more |
287 | |||
| 5 | 282 | ||||
| 6 |
OCEANCALLoceancall.co
OceanCall is an independent and innovative outsourcing company offering flexible, personalized solutions for customer relations and data processing to boost growth and enhance customer interactions |
272 | |||
| 7 |
ARKADIA Grouparkadiagroup.fr
ARKADIA Group is an independent engineering and services firm specializing in Energy and Aerospace/Transport sectors, offering expertise in large industrial projects worldwide |
214 | |||
| 8 |
REACTIS Groupreactis.fr
Company helps businesses with IT projects, software development, systems maintenance, digital transformation, and application services through various flexible intervention modes. |
163 | |||
| 9 |
ARIAL Industriesarial-industries.com
ARIAL Industries is an engineering company specializing in mechanical, electrical/electronic, and embedded systems for clients in aerospace, nuclear, automotive, and space industries |
141 | |||
| 10 |
Team-iTteam-it.fr
Specialized in IT infrastructure, cybersecurity, DevOps, cloud, project management, and ITIL process management for large corporate clients. |
135 | |||
| 11 |
Reel IT Groupereelit.fr
REEL IT Group, founded by digital transformation experts, offers a diverse range of solutions to drive businesses forward through digital transformation |
120 | |||
| 12 |
Amesys Conseilamesys-conseil.fr
Consulting and industrial group specializing in Defense & aerospace, aeronautics, transportation, RF, and homeland security markets with consistent growth and profitability |
118 | |||
| 13 |
Systerelsysterel.fr
Systerel specializes in developing innovative solutions for safety critical systems using advanced technologies and rigorous processes for various industries |
107 | |||
| 14 |
CS in Defense & Securitycs-soprasteria.com
Leading prime contractor specializing in design, integration, and operation of turnkey systems for critical applications in space, defense, aeronautics, and energy sectors worldwide |
103 | |||
| 15 |
Seasonseason-ed.com
Development of agile, Salesforce-based cloud software solutions for higher education institutions focusing on contact and interaction management. |
71 | |||
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 |
AMS GROUPEams-groupe.com
AMS Group, established in 2008, specializes in operational management in Quality, Safety, Environment, offering systemic and societal managerial support in 5 expertise areas |
65 | |||
| 17 |
Nova Law Firmnovapartners.net
A specialized law firm in France offering corporate finance, real estate, and restructuring services with a strong international focus and experienced multidisciplinary team |
61 | |||
| 18 |
LAURALBA CONSEILlauralba.net
Support SMEs and large companies with IT expert recruitment and development, focusing on employee desires to ensure mission fit and retention. |
51 | |||
| 19 |
EXPANSI Avocats & Experts-Comptablesexpansi.fr
A team of accounting, audit, legal professionals offering comprehensive services and advice to businesses, focusing on current entrepreneur needs in a digital, evolving environment |
47 | |||
| 20 |
Sabena Technics ATPaerotechpro.com
AeroTech Pro offers diverse aeronautics services globally, including technical assistance, MRO services, life cycle service, and mission services with highly trained personnel |
43 | |||
| 21 |
Direct Fleetdirect-fleet.com
Direct Fleet offers independent expertise in vehicle fleet management, including consulting services and delegated fleet management for increased productivity and efficiency |
42 | |||
| 22 |
The Hive Companythe-hive-company.fr
Consulting firm specializing in IT engineering, delivering tailored data, DevOps, SecOps, cloud, and infrastructure solutions with agile, collaborative, and sustainable values. |
42 | |||
| 23 |
acpqualifeacpqualife.com
Acpqualife is an ESN subsidiary of the HPS Group, offering consulting, testing, project management, infrastructure services, training, and software solutions in monetics |
42 | |||
| 24 | 40 | ||||
| 25 |
Numa Avocatsnumaavocats.com
Provides integrated legal, fiscal, and social advice to SMEs, entrepreneurs, and institutions for complex strategic business operations. |
37 | |||
| 26 |
AMDamd-creation.com
With over 20 years of experience, this company in Aix-en-Provence provides expert communication advice to strengthen businesses' image |
37 | |||
| 27 |
ALBERTAS NOTAIRESetude-albertas-notaires.fr
Established in 1600 in Aix en Provence, offering notarial services in a historic building with a team specializing in real estate, business, family law, and asset management |
36 | |||
| 28 |
AddixGroupaddixgroup.fr
AddixGroup assists businesses in successful digital transformation with consulting, development, and delegation of skills in IT, data, and cloud services |
34 | |||
| 29 |
DRUJON d'ASTROS & Associ茅sdrujondastros-avocats.com
A multidisciplinary law firm providing comprehensive legal services in various fields including labor law, commercial law, family law, and more |
22 | |||
| 30 |
NOVALFI | Patrimoinenovalfi.com
A multidisciplinary team of experts providing consulting services to help clients address their specific challenges and overall strategies effectively |
22 | |||
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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 Nov 12, 2026.
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