# 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).
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.
馃嚝馃嚪 Seine-Saint-Denis 路 30 companies 路 Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [EasyVista](https://www.tamtam.ai/c/easyvista) (easyvista.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 | 馃嚝馃嚪 Noisy-le-Grand | 363 | |
| 2 | [Cantor](https://www.tamtam.ai/c/cantor) (cantor.fr)
Cantor is a computer service and engineering company specializing in software and data engineering, including big data processing within strict deadlines | Software Development | 馃嚝馃嚪 Neuilly-Plaisance | 250 | 1996 |
| 3 | [Orisha Real Estate](https://www.tamtam.ai/c/orisha-real-estate) (realestate.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 | 馃嚝馃嚪 Saint-Denis | 217 | |
| 4 | [Calliope Business Solutions by TVH Consulting](https://www.tamtam.ai/c/calliope-business-solutions-by-tvh-consulting) (groupe-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 | 馃嚝馃嚪 Saint-Denis | 150 | 1995 |
| 5 | [GRAINBOW](https://www.tamtam.ai/c/grainbow) (grainbow.fr)
Providing innovative IT solutions and management software for trading companies, cooperatives, farmers, and industrialists focusing on risk and market management. | Software Development | 馃嚝馃嚪 Noisy-le-Grand | 57 | 1995 |
| 6 | [SARDEL Conseil](https://www.tamtam.ai/c/sardel-conseil) (sardel.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 | 馃嚝馃嚪 Noisy-le-Grand | 54 | 2016 |
| 7 | [Linkurious](https://www.tamtam.ai/c/linkurious) (linkurious.com)
Linkurious provides enterprise-ready graph intelligence solutions to help users uncover insights in complex connected data for informed decision-making | Software Development | 馃嚝馃嚪 Montreuil | 45 | 2013 |
| 8 | [D茅partement Informatique - IUT de Montreuil](https://www.tamtam.ai/c/departement-informatique-iut-de-montreuil) (iut.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 | 馃嚝馃嚪 Montreuil | 41 | |
| 9 | [au carr茅](https://www.tamtam.ai/c/au-carre) (aucarre.tech)
Development of custom no-code digital solutions to simplify internal processes, automate emails, improve client communication, and foster community engagement. | Software Development | 馃嚝馃嚪 Saint-Denis | 40 | 2022 |
| 10 | [Orika](https://www.tamtam.ai/c/orika) (orika.fr)
A French company specializing in software development for retail sector, offering omni-channel solutions to optimize consumer interactions worldwide | Software Development | 馃嚝馃嚪 Saint-Denis | 38 | |
| 11 | [Karoil](https://www.tamtam.ai/c/karoil) (karoil.fr)
A leading Digital Services Company specializing in new technologies, software, hardware, and digital solutions with 30 years of experience | Software Development | 馃嚝馃嚪 Montreuil | 35 | 1992 |
| 12 | [NCSIMUL](https://www.tamtam.ai/c/ncsimul) (hexagon.com)
Enhances workshop machine communication, cutting tool management, G-code verification, and programming for efficient, cost-effective, and collision-free manufacturing processes. | Software Development | 馃嚝馃嚪 Montreuil | 31 | 1983 |
| 13 | [Panopli \| B Corp鈩(https://www.tamtam.ai/c/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 | 馃嚝馃嚪 Saint-Denis | 26 | 2018 |
| 14 | [NEOFI Solutions](https://www.tamtam.ai/c/neofi-solutions) (neofi-solutions.com)
Consulting and integration services for financial flow management, cash management, and software deployment with a focus on interoperability and pragmatism. | Software Development | 馃嚝馃嚪 Saint-Denis | 20 | 2006 |
| 15 | [Openpaye](https://www.tamtam.ai/c/openpaye) (openpaye.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 | 馃嚝馃嚪 La Courneuve | 20 | 2020 |
| 16 | [SPEEGAR](https://www.tamtam.ai/c/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 | 馃嚝馃嚪 Noisy-le-Grand | 19 | 2019 |
| 17 | [CLIKING](https://www.tamtam.ai/c/cliking) (cliking.co)
It provides tools for measuring customer satisfaction, automating rewards, and facilitating communication, enhancing client retention and loyalty for businesses. | Software Development | 馃嚝馃嚪 Montreuil | 17 | 2019 |
| 18 | [I2SI Solutions Constructeur](https://www.tamtam.ai/c/i2si-solutions-constructeur) (i2si.fr)
Provides engineering expertise and software tools for construction professionals, insurers, and financiers to manage risks and improve project performance. | Software Development | 馃嚝馃嚪 Saint-Denis | 16 | 2012 |
| 19 | [GALAXY IT](https://www.tamtam.ai/c/galaxy-it) (galaxyit.fr)
Specializing in data management with a focus on Talend, our consultants help businesses optimize their data, from strategy to implementation | Software Development | 馃嚝馃嚪 Noisy-le-Grand | 16 | 2019 |
| 20 | [KLIQ Studio](https://www.tamtam.ai/c/kliq-studio) (kliqstudio.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 | 馃嚝馃嚪 Saint-Denis | 12 | 2019 |
| 21 | [NEOCLES CORPORATE](https://www.tamtam.ai/c/neocles-corporate)
A computer software company located in Montreuil, France, specializing in providing innovative solutions for businesses | Software Development | 馃嚝馃嚪 Montreuil | 11 | |
| 22 | [WAYNIUM](https://www.tamtam.ai/c/waynium) (waynium.com)
Specialized business solution for ground transportation companies, offering software, apps, and services to manage and grow their operations effectively and efficiently | Software Development | 馃嚝馃嚪 Tremblay-en-France | 11 | 2013 |
| 23 | [Jaiye - Enjoy good music](https://www.tamtam.ai/c/jaiye-enjoy-good-music) (jaiye.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 | 馃嚝馃嚪 Montreuil | 10 | 2015 |
| 24 | [Koalabs](https://www.tamtam.ai/c/koalabs) (koalabs-studio.com)
Development of video games and applications based in Montreuil, France, focusing on interactive digital entertainment and software solutions. | Software Development | 馃嚝馃嚪 Montreuil | 9 | 2011 |
| 25 | [RealVision](https://www.tamtam.ai/c/realvision) (realvision.fr)
A software publisher specializing in healthcare solutions, RealVision has been simplifying the work of healthcare professionals since 1993 | Software Development | 馃嚝馃嚪 Montreuil | 9 | 1994 |
| 26 | [SGBD Products](https://www.tamtam.ai/c/sgbd-products) (sgbd.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 | 馃嚝馃嚪 Gagny | 9 | 1991 |
| 27 | [ILYO TOUCH](https://www.tamtam.ai/c/ilyo-touch) (ilyotouch.com)
An all-in-one digital solution to improve customer experience, boost revenue, and manage Return on Investment effectively | Software Development | 馃嚝馃嚪 Les Pavillons-sous-Bois | 7 | |
| 28 | [CAPASOFT FRANCE](https://www.tamtam.ai/c/capasoft-france) (capasoft.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 | 馃嚝馃嚪 Noisy-le-Grand | 6 | 2017 |
| 29 | [D茅cisionnel](https://www.tamtam.ai/c/decisionnel) (decisionnel.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 | 馃嚝馃嚪 Noisy-le-Grand | 6 | 1987 |
| 30 | [FISI](https://www.tamtam.ai/c/fisi) (fisi.fr)
A technology company specializing in software for the medical sector, with a strong focus on customer satisfaction and continuous market integration | Software Development | 馃嚝馃嚪 Aulnay-sous-Bois | 5 | |
## 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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Source: https://www.tamtam.ai/l/software-development-companies-seine-saint-denis