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30 leading Software Development companies in the Seine-Saint-Denis department

Tamtam tracks 35 Software Development companies headquartered in the Seine-Saint-Denis department. This list ranks the 30 largest by number of employees on LinkedIn, led by EasyVista, Cantor and Orisha Real Estate. Their median headcount is 20. Half of them were founded in 2013 or later. The most common headquarters are Montreuil (9), Saint-Denis (8) and Noisy-le-Grand (7).

🇫🇷 Seine-Saint-Denis30 companiesUpdated Nov 11, 2026

The software development companies in Seine-Saint-Denis are a mix of mid-sized firms and younger companies. They specialize in various software solutions, from enterprise service management to real estate platforms. EasyVista offers intelligent solutions for enterprise service management, while Orisha Real Estate develops SaaS software for real estate professionals. Calliope Business Solutions by TVH Consulting focuses on digital transformation through ERP and CRM integration, and GRAINBOW provides IT solutions for trading companies and cooperatives.

A notable pattern among these companies is their concentration in a few key cities within Seine-Saint-Denis. Saint-Denis hosts several firms like Orisha Real Estate and Calliope Business Solutions, while Noisy-le-Grand is home to EasyVista and GRAINBOW. Montreuil also features prominently with companies such as Linkurious and NCSIMUL. These companies cater to diverse sectors including finance, manufacturing, and retail.

#CompanyIndustryHeadquarters EmployeesFounded
1
EasyVistaeasyvista.com

Global software provider offering intelligent solutions for enterprise service management, remote support, and self-healing technologies, empowering enterprises to accelerate digital transformation

Software Development 🇫🇷 Noisy-le-Grand 363 n/a
2
Cantorcantor.fr

Cantor is a computer service and engineering company specializing in software and data engineering, including big data processing within strict deadlines

Software Development 🇫🇷 Neuilly-Plaisance 250 1996
3
Orisha Real Estaterealestate.orisha.com

Editor of SaaS software for real estate professionals. Guides clients in sector challenges, development, and essential solutions for property transactions, management, and assets.

Software Development 🇫🇷 Saint-Denis 217 n/a
4
Calliope Business Solutions by TVH Consultinggroupe-calliope.com

Provides digital transformation through Microsoft and Sage ERP and CRM integration, utilizing packaged modules and structured methodology for retail, manufacturing, and services.

Software Development 🇫🇷 Saint-Denis 150 1995
5
GRAINBOWgrainbow.fr

Providing innovative IT solutions and management software for trading companies, cooperatives, farmers, and industrialists focusing on risk and market management.

Software Development 🇫🇷 Noisy-le-Grand 57 1995
6
SARDEL Conseilsardel.fr

Identifies young talent, provides specialized mainframe technology training, and facilitates placement into prestigious organizations to ensure sustainable long-term employment for computer science graduates.

Software Development 🇫🇷 Noisy-le-Grand 54 2016
7
Linkuriouslinkurious.com

Linkurious provides enterprise-ready graph intelligence solutions to help users uncover insights in complex connected data for informed decision-making

Software Development 🇫🇷 Montreuil 45 2013
8
Département Informatique - IUT de Montreuiliut.univ-paris8.fr

The IT department at IUT de Montreuil prepares students for future jobs in computer science fields, focusing on designing, implementing, and deploying IT solutions

Software Development 🇫🇷 Montreuil 41 n/a
9
au carréaucarre.tech

Development of custom no-code digital solutions to simplify internal processes, automate emails, improve client communication, and foster community engagement.

Software Development 🇫🇷 Saint-Denis 40 2022
10
Orikaorika.fr

A French company specializing in software development for retail sector, offering omni-channel solutions to optimize consumer interactions worldwide

Software Development 🇫🇷 Saint-Denis 38 n/a
11
Karoilkaroil.fr

A leading Digital Services Company specializing in new technologies, software, hardware, and digital solutions with 30 years of experience

Software Development 🇫🇷 Montreuil 35 1992
12
NCSIMULhexagon.com

Enhances workshop machine communication, cutting tool management, G-code verification, and programming for efficient, cost-effective, and collision-free manufacturing processes.

Software Development 🇫🇷 Montreuil 31 1983
13
Panopli | B Corp™panopli.co

Offers a platform for businesses to send responsible gifts, allowing recipients to choose their gift or donate to a charity, boosting engagement.

Software Development 🇫🇷 Saint-Denis 26 2018
14
NEOFI Solutionsneofi-solutions.com

Consulting and integration services for financial flow management, cash management, and software deployment with a focus on interoperability and pragmatism.

Software Development 🇫🇷 Saint-Denis 20 2006
15
Openpayeopenpaye.co

Provides online payroll software designed for professionals, offering a clear, reliable, and user-friendly tool for daily payroll management, adaptable to various organizations.

Software Development 🇫🇷 La Courneuve 20 2020

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16
SPEEGAR

Digital services consultancy specializing in Java and Angular web application development through collaborative methodologies to meet high technical standards for client projects.

Software Development 🇫🇷 Noisy-le-Grand 19 2019
17
CLIKINGcliking.co

It provides tools for measuring customer satisfaction, automating rewards, and facilitating communication, enhancing client retention and loyalty for businesses.

Software Development 🇫🇷 Montreuil 17 2019
18
I2SI Solutions Constructeuri2si.fr

Provides engineering expertise and software tools for construction professionals, insurers, and financiers to manage risks and improve project performance.

Software Development 🇫🇷 Saint-Denis 16 2012
19
GALAXY ITgalaxyit.fr

Specializing in data management with a focus on Talend, our consultants help businesses optimize their data, from strategy to implementation

Software Development 🇫🇷 Noisy-le-Grand 16 2019
20
KLIQ Studiokliqstudio.com

Sellzone offers innovative marketing solutions integrating AI to maximize customer revenue through automation, loyalty, and acquisition strategies, tailored for peak performance and success

Software Development 🇫🇷 Saint-Denis 12 2019
21
NEOCLES CORPORATE

A computer software company located in Montreuil, France, specializing in providing innovative solutions for businesses

Software Development 🇫🇷 Montreuil 11 n/a
22
WAYNIUMwaynium.com

Specialized business solution for ground transportation companies, offering software, apps, and services to manage and grow their operations effectively and efficiently

Software Development 🇫🇷 Tremblay-en-France 11 2013
23
Jaiye - Enjoy good musicjaiye.com

A music streaming service focused on Afro and Caribbean music, offering ad-supported and subscription models to stream audio music files on-demand from mobile devices

Software Development 🇫🇷 Montreuil 10 2015
24
Koalabskoalabs-studio.com

Development of video games and applications based in Montreuil, France, focusing on interactive digital entertainment and software solutions.

Software Development 🇫🇷 Montreuil 9 2011
25
RealVisionrealvision.fr

A software publisher specializing in healthcare solutions, RealVision has been simplifying the work of healthcare professionals since 1993

Software Development 🇫🇷 Montreuil 9 1994
26
SGBD Productssgbd.fr

High-quality development of custom applications, web hosting, and maintenance services for both MacOS and Windows systems since 1991 Skilled in project management, design, and mobile applications

Software Development 🇫🇷 Gagny 9 1991
27
ILYO TOUCHilyotouch.com

An all-in-one digital solution to improve customer experience, boost revenue, and manage Return on Investment effectively

Software Development 🇫🇷 Les Pavillons-sous-Bois 7 n/a
28
CAPASOFT FRANCEcapasoft.fr

CAPASOFT develops and sells industry-specific CRM/ERP software for office, IT, telephony, and security sectors, enhancing productivity and profitability for businesses

Software Development 🇫🇷 Noisy-le-Grand 6 2017
29
Décisionneldecisionnel.com

The company offers solutions combining top technology tools with tailored methodologies to support various business needs, such as performance management and data analysis

Software Development 🇫🇷 Noisy-le-Grand 6 1987
30
FISIfisi.fr

A technology company specializing in software for the medical sector, with a strong focus on customer satisfaction and continuous market integration

Software Development 🇫🇷 Aulnay-sous-Bois 5 n/a

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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.

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