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Software Development companies headquartered in the Hauts-de-Seine department

Tamtam tracks 301 Software Development companies headquartered in the Hauts-de-Seine department. This list ranks the 30 largest by number of employees on LinkedIn, led by Quadient, Doctolib and Linedata. Their median headcount is 466. Half of them were founded in 1996 or later. The most common headquarters are Boulogne-Billancourt (7), Courbevoie (3) and Issy-les-Moulineaux (2).

🇫🇷 Hauts-de-Seine30 companiesUpdated Nov 11, 2026

These large and mid-sized software development companies in Hauts-de-Seine specialize in diverse applications, from customer experience to urban mobility. Quadient, founded in 1924, focuses on intelligent communication and parcel locker solutions, while Doctolib (2013) provides healthcare technology. Linedata (1998) offers solutions for asset management, and Flowbird Group (2018) develops urban mobility technology. Vusion (1992) specializes in AI-powered digitalization for physical commerce.

The companies show a concentration in the northern part of Hauts-de-Seine, with a notable cluster in Boulogne-Billancourt, Neuilly-sur-Seine, and Nanterre. Their founding dates span from the early 20th century to the 2010s, indicating a mix of established enterprises and younger firms.

#CompanyIndustryHeadquarters EmployeesFounded
1
Quadientquadient.com

This company helps simplify customer connections through Intelligent Communication Automation, Parcel Locker Solutions, and Mail-Related Solutions, striving for customer experience excellence

Software Development 🇫🇷 Bagneux 3,963 1924
2
Doctolibdoctolib.com

A healthcare technology company striving to create a healthier world by providing innovative solutions for care teams and individuals, emphasizing privacy and accessibility

Software Development 🇫🇷 Levallois-Perret 3,598 2013
3
Linedatalinedata.com

Provides humanized technology solutions and services for asset management and credit industries, helping clients evolve and operate at high levels.

Software Development 🇫🇷 Neuilly-sur-Seine 2,228 1998
4
IGAiga.fr

Develops software components, creates custom solutions, implements installations, and provides specific services like hosting and accounting outsourcing for insurance, travel, and trade.

Software Development 🇫🇷 Malakoff 1,358 1985
5
Vusionvusion.com

Develops AI-powered digitalization solutions for physical commerce, transforming stores into intelligent environments, improving operations, enabling e-commerce, and activating in-store retail media.

Software Development 🇫🇷 Nanterre 1,113 1992
6
Viverisviveris.fr

consulting and engineering company for information systems, technical computing, and embedded systems, providing support from definition to integration.

Software Development 🇫🇷 Boulogne-Billancourt 899 1986
7
Planiswareplanisware.com

Provides AI-powered SaaS platforms for organizations to strategize, plan, and deliver projects, portfolios, programs, and products efficiently.

Software Development 🇫🇷 Châtillon 791 1996
8
Odigoodigo.com

Provides an omnichannel CCaaS platform, simplifying and automating customer experience. Offers AI, security, and sovereign cloud solutions to enhance customer service and operational efficiency.

Software Development 🇫🇷 Boulogne-Billancourt 636 1986
9
Flowbird Groupflowbird.com

Provides frictionless technology solutions for urban mobility, parking, and transport across 4,350 cities in 80 countries, making travel easier, safer, and faster.

Software Development 🇫🇷 Neuilly-sur-Seine 628 2018
10
A2MAC1 - Decode the futurea2mac1.com

Provides comprehensive data analysis, technical insights, and competitive analysis to automotive and mobility businesses for informed decisions, innovation, and sustainable growth.

Software Development 🇫🇷 Boulogne-Billancourt 623 1997
11
SES-imagotagses-imagotag.com

Provides smart digital labels and an IoT platform to retailers, connecting physical stores, automating processes, improving efficiency, and serving customers.

Software Development 🇫🇷 Nanterre 560 1992
12
Nexpublicanexpublica.com

Develops innovative, secure software solutions for public, parapublic, and private sectors, supporting over 4,000 public and 1,200 private organizations.

Software Development 🇫🇷 Clichy 559 n/a
13
ChapsVisionchapsvision.com

French software company specializing in data intelligence and AI, providing industry-specific solutions for diverse sectors, supporting digital transformation globally.

Software Development 🇫🇷 Suresnes 558 2019
14
Trace Onetraceone.com

Partners with brands across industries to accelerate product development and turn regulatory complexity into a competitive advantage using an AI-powered PLM platform.

Software Development 🇫🇷 Puteaux 526 2001
15
Talentia Softwaretalentia-software.com

Offers HR and Finance software solutions specifically designed for mid-size companies, helping CFOs and CHROs navigate complexity and achieve business objectives.

Software Development 🇫🇷 Puteaux 466 1988

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16
Cegedim Santécegedim-sante.com

Covers health brands. Professionals, patients support. Software, hosting. 1100 employees. HDS, ISO 27001 certified. Regional agencies. 100,000+ health professionals.

Software Development 🇫🇷 Boulogne-Billancourt 451 2021
17
Daletdalet.com

Empowers media organizations to transform production, distribution workflows, accelerating media operations, maximizing collaboration, and creating higher value from content with software solutions.

Software Development 🇫🇷 Levallois-Perret 447 1990
18
Sidetradesidetrade.com

Provides agentic AI for finance teams, managing Order-to-Cash cycles including cash collection, application, dispute resolution, credit analysis, and risk using extensive B2B transaction data.

Software Development 🇫🇷 Boulogne-Billancourt 405 2000
19
Amex GBT Neoamexglobalbusinesstravel.com

Offers integrated travel and expense management solutions, helping companies save on spend, improve productivity, and gain better visibility on total trip costs.

Software Development 🇫🇷 Issy-les-Moulineaux 344 n/a
20
Avanquestavanquestgroup.com

A leading software publisher offering PDF, Security, and Photo products, utilizing cutting edge technology to enhance user experience worldwide

Software Development 🇫🇷 Courbevoie 340 1984
21
Ringover Franceringover.fr

It provides SaaS solutions for managing client interactions, integrating AI technology, and enhancing productivity for businesses worldwide.

Software Development 🇫🇷 Montrouge 289 2018
22
Webnetwebnet.fr

Established in 1996, the company is an internet solutions integrator offering services like consulting, development, hosting, multimedia creation, and mobility solutions for clients

Software Development 🇫🇷 Sèvres 275 1996
23
ESRI Franceesrifrance.fr

The company designs and develops the most comprehensive and widely used GIS range in the world, essential tools for businesses and organizations

Software Development 🇫🇷 Meudon 268 1988
24
SoftAtHomesoftathome.com

An independent software provider offering solutions in broadband, Wi-Fi, security, smart home, video, analytics, and QoE monitoring for operators worldwide

Software Development 🇫🇷 Colombes 264 2008
25
Clouditycloudity.com

International digital company specializing in Salesforce consulting, digital transformation, sales increase, customer service improvement, and process automation solutions.

Software Development 🇫🇷 Courbevoie 256 2014
26
Sunsticesunstice.com

Leading software vendor providing advanced Supply Chain Planning and Trade Promotion Management solutions to help companies optimize their supply chains and drive growth

Software Development 🇫🇷 Boulogne-Billancourt 230 1994
27
ITESOFTitesoft.com

A software vendor offering solutions for automating document-centric processes, including financial process automation and intelligent document capture for businesses and organizations

Software Development 🇫🇷 Rueil-Malmaison 221 1984
28
AYMAX™aymax.fr

Expert in digital consulting, app development, and SAP integration Specializing in new technologies, providing tailored solutions to enhance flexibility and innovation for clients worldwide

Software Development 🇫🇷 Courbevoie 216 2014
29
Smart Rxsmart-rx.com

Provides innovative software solutions to pharmacists for patient care, management, and animation of their pharmacies, supporting connected pharmacies for over 30 years.

Software Development 🇫🇷 Boulogne-Billancourt 214 1969
30
Tinubutinubu.com

Provides enterprise software for specialty insurance, managing complex risks from submission to renewal, serving carriers and underwriting teams globally.

Software Development 🇫🇷 Issy-les-Moulineaux 212 2000

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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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