Open Systems SASE

Network and security are one - without compromise. Our unified SASE service is fast, agile, and delivered from the cloud worldwide.

SASE: The Network of the Future is Here Today

SASE: The Network of the
Future is Here Today

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Open Systems XDR

Outcomes. Not Alerts. Open Systems XDR predicts, detects, and responds to cyberthreats with AI that’s backed by real-world security experts 24x7.

3 Reasons to Choose MDR

3 Reasons to Choose MDR

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Why Open Systems

Our people, process, and technology work as one to deliver a unified platform, 24x7 operations, and expert advice when you need it most.

Call It

Call It "Sassy" - Gartner Calls
SASE Transformational

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SASE: The Network of the Future is Here Today

SASE: The Network of the
Future is Here Today

Download eBook

About Open Systems

Open Systems is the global leader in world-class cybersecurity and connectivity from the cloud.

Gartner Report: Voice of the Customer for WAN Edge Infrastructure

Gartner Report: Voice of the Customer for WAN Edge Infrastructure

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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