The professional services firms in Levallois-Perret are primarily large to mid-sized companies specializing in IT services, consulting, and accounting. Many are focused on digital transformation, data, and technology. Notable examples include Devoteam, an AI-driven tech consulting firm, Forvis Mazars Group, an international audit and advisory service, and SQLI, a European group for customer experience and digital transformation.
A significant pattern among these companies is their specialization in digital and technological solutions. Several firms, such as Micropole and Jems Group, focus on data and AI, while others like Ayming and NEO2 provide specialized consulting in areas like innovation, HR, and engineering.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Devoteamdevoteam.com
AI-driven tech consulting firm specializing in cloud platforms, cyber, data, and sustainability, guiding businesses through sustainable digital transformation to deliver value. |
10,274 | |||
| 2 |
Forvis Mazars Groupforvismazars.com
International partnership delivering audit, tax, and advisory services across one hundred countries and territories through an integrated global professional services network. |
9,534 | |||
| 3 | 2,854 | ||||
| 4 |
Aymingayming.com
Partners with businesses, institutions to unlock lasting value. Translates policy into opportunities, manages growth transformation. Specializes in innovation, HR, taxes across 14 countries. Delivers tangible results beyond consulting. |
1,947 | |||
| 5 |
Staffmatchstaffmatch.com
Revolutionizes temporary work market by integrating digital solutions with a network of physical agencies, providing staffing services across France. |
1,512 | |||
| 6 |
IKOS GROUPikosconsulting.com
Technology consulting firm specializing in railway engineering and energy solutions, providing technical assistance and strategic advice for clients' projects worldwide. |
1,191 | |||
| 7 |
Argon & Coargonandco.com
Global management consultancy specializing in operations strategy, supply chain, manufacturing, logistics, procurement, finance, and shared services transformation. |
870 | |||
| 8 |
Micropolemicropole.com
An international consulting group specializing in corporate transformation through data, offering expertise in 'Data Driven' Strategy, Cloud Acceleration, and Digital Business solutions |
803 | |||
| 9 |
Jems Groupjems-group.com
Create, manage, and operate customer data patrimony, industrializing use cases and innovative services based on AI or pure analytics for key accounts. |
717 | |||
| 10 |
Devoteam | Google Cloud Partnergcloud.devoteam.com
Provides innovative Google Cloud solutions across AI, IT modernization, security, and work transformation, with expertise in migrating users and assisting organizations. |
579 | |||
| 11 |
MCAmca-groupe.com
International engineering and high-tech company empowering talent, partnering with top companies to realize cutting-edge projects across Europe, with a strategic Nearshore Hub. |
564 | |||
| 12 | 449 | ||||
| 13 |
ALTI une soci茅t茅 de Tata Consultancy Servicesalti.fr
A subsidiary of Tata Consultancy Services, Alti provides high-level expertise in information systems consulting and engineering for businesses in France |
430 | |||
| 14 |
Devoteam Digital Impulsedevoteam.com
Dedicated business consulting team specializing in driving digital transformation from strategy to execution, emphasizing bold decisions and innovative ideas Shift the game |
412 | |||
| 15 | 379 | ||||
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| 16 |
Devoteam | Cyber Trustdevoteam.com
Empowering clients to protect digital transformation by managing risks and deploying innovative cybersecurity solutions, ensuring resilience in the digital age |
374 | |||
| 17 |
Devoteam | AWS Partnerdevoteam.com
It is an AWS Premier Consulting Partner with over 450 experts, providing scalable infrastructure and innovative solutions across multiple European countries. |
290 | |||
| 18 |
Ozitemgroupeozitem.com
Supports customers with digital innovation. Provides IT and cloud infrastructure solutions, enabling clients to focus on their core business in the digital world. |
285 | |||
| 19 |
Amaris Groupgroupamaris.com
Engineering consulting company specializing in project management and manufacturing/assembly monitoring, providing tailored services to clients in France and abroad with a focus on consultant development |
153 | |||
| 20 |
DAVRICOURT | Certified Positive Companydavricourt.com
Provides consulting and recruitment services in industry, focusing on sustainable practices and employee well-being, collaborating with international groups across various sectors. |
153 | |||
| 21 |
HARINGTONharington.fr
Provides technology and digital consulting services, helping companies innovate, maintain competitiveness, evolve business models, and optimize operations through various tech offerings. |
148 | |||
| 22 |
UTI-Grouputi-group.fr
UTiGROUP is a group of IT engineering services companies specialized in management computing, offering consulting, engineering, and integration services with a focus on quality and client benefits |
142 | |||
| 23 | 135 | ||||
| 24 |
Marquetis&Comarquetis.fr
Develops relational brand strategies, manages operational profitability, and offers communication, call center, and local intelligence solutions for client success. |
132 | |||
| 25 |
Novadisnovadis.eu
With 10 years of experience in safety, Novadis helps create convergent and interoperable solutions to bring visions to life |
117 | |||
| 26 |
Devoteam | ServiceNow Partnerdevoteam.com
A leading provider in EMEA, leveraging the Now Platform since 2009 to deliver digital workflows that enhance productivity and elevate customer experiences |
116 | |||
| 27 |
LSIlsi-group.com
International consulting group specializing in healthcare industry for pharma, biotech, medical devices and cosmetics clients, offering audit, training, and consulting across product lifecycles. |
111 | |||
| 28 |
Devoteam S Platformdevoteam.com
A global leader in Salesforce technologies, providing end-to-end solutions to +300 clients in 10 countries to accelerate sales and marketing effectiveness |
101 | |||
| 29 |
Eloquanteloquant.com
It specializes in customer relationship solutions, offering dialogue management and feedback analysis through a SaaS platform for various clients. |
98 | |||
| 30 | 97 | ||||
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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 13, 2026.
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The same list elsewhere in France
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