New Open Systems CEO Bets on Service to Win in SASE Market

New CEO Dennis Monner Outlines Open Systems' Global Expansion, SASE Differentiation Michael Novinson (MichaelNovinson) • October 3, 2025

Open Systems snagged Aryaka's former chief commercial officer as its next CEO to boost sales efficiency, refine the go-to-market structure and grow in North America.

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The Zurich, Switzerland-based managed SASE provider tasked Dennis Monner with leveraging Open Systems' blend of managed services and technical depth to serve companies looking for alternatives to U.S. or Israeli cybersecurity providers. He said the company's integrated SASE offering - complete with SD-WAN, ZTNA and managed support - is tailored for large global enterprises seeking fewer vendors.

"My background is primarily go-to-market sales, increasing the efficiency and growing the companies," Monner told Information Security Media Group. "And that's a huge opportunity here for me, and ...