The SaaS companies in Yvelines are primarily software development firms, ranging from large groups to mid-sized companies, with a focus on specialized business solutions. Dassault Systèmes, with over 27,000 employees, offers a platform for sustainable innovation across industries. SELL provides a cloud platform for product information management, while Avanteam specializes in BPM and ECM solutions with AI. Coptis focuses on advanced technology for Cosmetic R&D, and Veryswing offers SaaS management software for IT services.
A notable pattern among these companies is the concentration of headquarters in specific towns. Vélizy-Villacoublay hosts Dassault Systèmes, Avanteam, FraudBuster, and Vistory. Croissy-sur-Seine is home to SELL and Coptis, while Versailles counts COSIUM and Pomelo-Paradigm among its companies. This suggests a localized cluster of technological expertise within the department.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Dassault Systèmes3ds.com
Pioneering virtual worlds since 1981, this company offers a platform enabling customers across industries to collaborate, imagine, and create sustainable innovations for real-life impact. |
27,414 | |||
| 2 |
SELLsell-marketing.com
A French independent company helps businesses master product information to optimize their sales strategy using the SELL BASE cloud platform |
587 | |||
| 3 |
Avanteamavanteam.fr
A software editor specializing in BPM and ECM solutions, using innovative technologies like AI, serving over 500 customers in Europe |
104 | |||
| 4 | 69 | ||||
| 5 |
COSIUMcosium.com
Cloud-based software and hardware solutions for healthcare industry, offering ICT outsourcing, Business Intelligence tools, and custom-designed electronics for optical retail and domiciliary care |
65 | |||
| 6 |
Coptiscoptis.com
A company specializing in advanced technology solutions for Cosmetic R&D, offering software for product development, compliance management, and toxicology information |
58 | |||
| 7 |
Pomelo-Paradigmpomelo-paradigm.com
An innovative company designing collaborative applications with simple tools to enhance human productivity across all media platforms |
47 | |||
| 8 | 46 | ||||
| 9 |
Allshareallshare.fr
Helps HR, C&B, and Finance teams align workforce with company strategy and build compensation policies to attract, retain, and engage employees. |
46 | |||
| 10 |
PHOENIX FLEET EXPERTphoenix-fleetexpert.com
PHOENIX FLEET EXPERT offers fleet management solutions including outsourcing, software, and shared management to optimize clients' vehicle fleets effectively |
45 | |||
| 11 |
FraudBusterfraudbuster.mobi
Antifraud services for mobile network operators worldwide with disruptive approach and unique solutions like SIMBuster, and MoMoSe. |
39 | |||
| 12 |
Vistoryvistory.com
Development of cybersecurity software leveraging blockchain, cloud, and big data technologies to enable digital transformation and industry disruption. |
38 | |||
| 13 |
Veryswingveryswing.com
French editor providing SaaS management software for IT services, consulting firms, design offices, and umbrella companies, ensuring high security and regulatory compliance. |
36 | |||
| 14 |
Comerceacomercea.fr
Digital platform boosting city centers & local shops, promoting in-store purchases through loyalty programs, sales promotions, gift vouchers, and online options for convenience |
34 | |||
| 15 |
MédiFirstmedifirst.com
Dedicated to serving medical professionals in Assisted Reproduction (ART) and Genetics, the company provides an EMR system to streamline patient journeys and boost operational efficiency. |
32 | |||
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 |
ULiTusersloveit.com
A software publisher offering a cloud-based platform, negOptim, for cost-effective data exchanges, business processes, and collaboration between suppliers and retailers |
29 | |||
| 17 |
INOVATICinovatic.fr
French specialist in automated data extraction from structured documents for businesses, focusing on financial industry professionals, optimizing client journeys for online financing offers. |
25 | |||
| 18 |
MonEcho - logiciel médicalmonecho.com
Provides an online software solution for ultrasound practitioners and hospitals, integrating with all ultrasound machines and ensuring data security and efficient workflow. |
25 | |||
| 19 |
EVOGEST LOGESTevogest.fr
EVOGEST is your partner for integrated ERP solutions and computer hardware in Orgeval, France, specializing in business management and IT equipment |
24 | |||
| 20 |
MAIDIS SASmaidis.fr
Development and marketing of comprehensive electronic health record software for medical and dental practices, hospitals, and health centers. |
19 | |||
| 21 |
Gestimumgestimum.com
Manufacturer of user-friendly ERP software, Gestimum, tailored for 20-500 employee companies Constantly updates with new features and offers related services |
19 | |||
| 22 |
KERLOGkerlog.com
Software publisher specializing in waste management for environmental and recycling industries, serving over 350 clients with 4,000+ users across France and overseas territories |
19 | |||
| 23 |
LINKVIEWlinkview.fr
Provider of connected security solutions, utilizing patented technology for remote access supervision Specializing in monitoring, repairing, and servicing access installations for doors, gates, barriers, and parking systems |
18 | |||
| 24 |
TomTom Telematics Francetomtom.com
A leading international telematics solutions provider, offering fleet management, vehicle performance optimization, fuel savings, and driver support services to businesses worldwide |
17 | |||
| 25 |
A-Systems SASa-systems.com
Develops and sells advanced feed formulation software, Allix, for the animal feed industry, offering features like optimization, ration calculation, and quality control. |
17 | |||
| 26 |
Kiwee.carekiwee.care
Simplifies healthcare payments and administrative processes, supports patients and professionals with an intuitive, secure digital solution and attentive service. |
17 | |||
| 27 |
Wakanda.ious.4d.com
Revolutionizing development with an open-source JavaScript platform for building and maintaining mobile and web applications quickly and effectively |
15 | |||
| 28 |
Intuitemintuitem.com
Company creates cybersecurity software, focusing on governance, risk management, and compliance, using expertise in cloud, data, and AI to help organizations manage cyber challenges. |
14 | |||
| 29 |
Entropyentropy.fr
Develops predictive and decision-making AI models, aiding businesses and territories in piloting activities, including multimodal mobility observation and anticipating point of interest footfall. |
13 | |||
| 30 |
LIAISON VOCALE
Develops and sells specialized CRM software for voice interactions, offering virtual voice-activated switchboards, biometric voice authentication, and intelligent conversational agents. |
12 | |||
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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.
More company lists in the Yvelines department
- The largest companies in the Yvelines department 1,469
- Multinational companies in the Yvelines department 226
- Companies with in-house R&D in the Yvelines department 160
- IT services companies in the Yvelines department 121
- IT Services and IT Consulting companies in the Yvelines department 118
- Manufacturers in the Yvelines department 109
- Professional services firms in the Yvelines department 108
- Hardware manufacturers in the Yvelines department 106
- Distributors and wholesalers in the Yvelines department 91
- Retail chains in the Yvelines department 89
- Consulting firms in the Yvelines department 72
- Aerospace and defence companies in the Yvelines department 65
- Public sector organisations in the Yvelines department 65
- Software Development companies in the Yvelines department 56
- Business Consulting and Services companies in the Yvelines department 53
- Government Administration companies in the Yvelines department 51
- Construction companies in the Yvelines department 50
- Automotive manufacturers and suppliers in the Yvelines department 49
- Motor Vehicle Manufacturing companies in the Yvelines department 49
- Education providers in the Yvelines department 46
- Industrial Machinery Manufacturing companies in the Yvelines department 43
- Critical infrastructure operators in the Yvelines department 41
- Family-owned companies in the Yvelines department 36
- Environmental services companies in the Yvelines department 35
The same list elsewhere in France
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- SaaS companies in the Bouches-du-Rhône department 146
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- SaaS companies in the Loire-Atlantique department 135
- SaaS companies in Brittany 128
- SaaS companies in the Hérault department 110
- SaaS companies in the Ille-et-Vilaine department 85
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- SaaS companies in Lille 104
- SaaS companies in Toulouse 102
- SaaS companies in Nantes 90
- SaaS companies in Bordeaux 88