France

Top 17 largest French Companies in the Information Technology Services industry by Market Cap

This is the list of the largest public listed companies in the Information Technology Services industry from France by market capitalization with links to their reference stock.

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Top Information Technology Services Companies from France as of Jul. 01, 2025

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Rank Company Market Cap (USD) Country Sector Industry
1 Capgemini SE $29.16 B France French Technology French Information Technology Services
2 Sopra Steria Group SA $4.63 B France French Technology French Information Technology Services
3 Alten SA $3.16 B France French Technology French Information Technology Services
4 Wavestone SA $1.70 B France French Technology French Information Technology Services
5 Devoteam SA $1.56 B

(Dec. 1, 2021)

 France French Technology French Information Technology Services
6 Société pour l'Informatique Industrielle SII SA $1.49 B

(Jan. 1, 2024)

 France French Technology French Information Technology Services
7 Neurones $1.28 B France French Technology French Information Technology Services
8 Aubay SA $769.0 M France French Technology French Information Technology Services
9 Atos SE $698.6 M France French Technology French Information Technology Services
10 Tessi SA $625.4 M

(Nov. 1, 2021)

 France French Technology French Information Technology Services
11 Infotel SA $325.5 M France French Technology French Information Technology Services
12 Umanis SA $323.1 M

(July 1, 2022)

 France French Technology French Information Technology Services
13 Groupe Open $297.8 M

(April 1, 2022)

 France French Technology French Information Technology Services
14 SQLI SA $197.3 M

(July 1, 2024)

 France French Technology French Information Technology Services
15 Cheops Technology SA $168.4 M France French Technology French Information Technology Services
16 Keyrus SA $146.1 M France French Technology French Information Technology Services
17 IT Link SA $55.1 M France French Technology French Information Technology Services

Top Information Technology Services Companies from France as of Jul. 01, 2025

1. Capgemini SE

Company Profile: Capgemini SE
Market Cap (USD): $29.16 B
Country: France
Sector: French Technology
Industry: French Information Technology Services

2. Sopra Steria Group SA

Company Profile: Sopra Steria Group SA
Market Cap (USD): $4.63 B
Country: France
Sector: French Technology
Industry: French Information Technology Services

3. Alten SA

Company Profile: Alten SA
Market Cap (USD): $3.16 B
Country: France
Sector: French Technology
Industry: French Information Technology Services

4. Wavestone SA

Company Profile: Wavestone SA
Market Cap (USD): $1.70 B
Country: France
Sector: French Technology
Industry: French Information Technology Services

5. Devoteam SA

Company Profile: Devoteam SA
Market Cap (USD): $1.56 B (Dec. 1, 2021)
Country: France
Sector: French Technology
Industry: French Information Technology Services

6. Société pour l'Informatique Industrielle SII SA

Company Profile: Société pour l'Informatique Industrielle SII SA
Market Cap (USD): $1.49 B (Jan. 1, 2024)
Country: France
Sector: French Technology
Industry: French Information Technology Services

7. Neurones

Company Profile: Neurones
Market Cap (USD): $1.28 B
Country: France
Sector: French Technology
Industry: French Information Technology Services

8. Aubay SA

Company Profile: Aubay SA
Market Cap (USD): $769.0 M
Country: France
Sector: French Technology
Industry: French Information Technology Services

9. Atos SE

Company Profile: Atos SE
Market Cap (USD): $698.6 M
Country: France
Sector: French Technology
Industry: French Information Technology Services

10. Tessi SA

Company Profile: Tessi SA
Market Cap (USD): $625.4 M (Nov. 1, 2021)
Country: France
Sector: French Technology
Industry: French Information Technology Services

11. Infotel SA

Company Profile: Infotel SA
Market Cap (USD): $325.5 M
Country: France
Sector: French Technology
Industry: French Information Technology Services

12. Umanis SA

Company Profile: Umanis SA
Market Cap (USD): $323.1 M (July 1, 2022)
Country: France
Sector: French Technology
Industry: French Information Technology Services

13. Groupe Open

Company Profile: Groupe Open
Market Cap (USD): $297.8 M (April 1, 2022)
Country: France
Sector: French Technology
Industry: French Information Technology Services

14. SQLI SA

Company Profile: SQLI SA
Market Cap (USD): $197.3 M (July 1, 2024)
Country: France
Sector: French Technology
Industry: French Information Technology Services

15. Cheops Technology SA

Company Profile: Cheops Technology SA
Market Cap (USD): $168.4 M
Country: France
Sector: French Technology
Industry: French Information Technology Services

16. Keyrus SA

Company Profile: Keyrus SA
Market Cap (USD): $146.1 M
Country: France
Sector: French Technology
Industry: French Information Technology Services

17. IT Link SA

Company Profile: IT Link SA
Market Cap (USD): $55.1 M
Country: France
Sector: French Technology
Industry: French Information Technology Services

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