Open Systems SASE

Our future-proof SASE platform as a service, with 24×7 support, allows you to enable network simplicity, intelligent security, and performance.


Featured Resource

SASE: The Network of the
Future Is Here Today

View eBook



Find the latest customer stories, solution briefs, white papers, videos, events, webinars and third-party research about SASE.


Featured Resource

Gartner Market Guide for Managed Detection and Response Services, 2020

View Report


We're All About Partnership

We’re uncompromising in the pursuit of growth, and we’re proud of the network and the people that make our growth possible.


Featured Partner

Accelerate your Journey to
the Microsoft Cloud

View Partnership


Open Systems

Open Systems is the preeminent cybersecurity and connectivity provider for the enterprise cloud.


A Great Place to Work

Good Employer Badges

Come Join Us!

View Open Positions
Andreas Seidl

Andreas Seidl

Andreas Seidl took on the position of CFO in Finance and Controlling at Open Systems in January 2019. He studied math and computer science, and has earned more than 15 years of experience in the software industry as well as an MBA from the Rotterdam School of Management. Before Open Systems, he worked as a CFO at Automic, a market leader in corporate software for business automation, and prior to that as a McKinsey consultant on various projects in the areas of telecommunication and manufacturing.

  • Coolest personal accomplishment: Playing lead guitar in a country rock band in front of a crowd of 1,000 people. I put away my Fender Stratocaster 20 years ago and have never touched it since. What remains is a memory for a lifetime
  • Superpower: Converted good finance people into CFOs. All my VP finance reports of the last 15 years became CFOs in the software industry in US and Europe
  • Professional accomplishment: Stepping in and delivering a 200 M EUR enterprise valuation pitch to a potential investor when my CEO went down with a terrible cold. The investor bought into the company and added a 20% renowned shareholder who then helped us kick-start our US operations