Here are the core activities of the companies:
1. Fujitsu Technology Solutions: Provider of IT infrastructure solutions, including hardware, software, and services for businesses.
2. (No specific information, as the text is identical to No. 1)
3. BWO Systems AG: IT general contractor offering comprehensive and customized IT solutions for businesses.
4. BWO Systems AG: IT general contractor offering comprehensive and customized IT solutions for businesses.
5. Veeam: Provider of solutions for the virtualization of IT infrastructures.
6. BWO Systems AG: IT general contractor offering comprehensive and customized IT solutions for businesses.
7. (No specific information, as the text does not provide a clear statement about the company's core activity)
8. Sophos: Provider of security software for businesses, including virus protection, encryption software, and protection against spam and malware.
9. Extreme Networks: Provider of enterprise networking solutions, including network access and data center solutions.
10. NetApp: Provider of software, systems, and services for data management and storage for businesses.