Horizon3 names EMEA general manager and expands Pax8 deal

Horizon3 promoted Keith Poyser to EMEA general manager after strong growth and expanded NodeZero sales to European MSPs via Pax8.

Horizon3 announced two EMEA commercial moves in mid-October 2026. On 13 October it promoted Keith Poyser, previously vice president for EMEA, to general manager for the region after he grew headcount from eight to more than 110 since joining in September 2024 and the region posted more than 260% revenue growth in the last fiscal year. The company has opened an EMEA headquarters in Amsterdam, and Poyser previously held leadership roles at SentinelOne, Palo Alto Networks, and IBM. Separately, Horizon3 expanded its partnership with Pax8 so European managed service providers can sell the NodeZero proactive security platform through the Pax8 Marketplace, covering infrastructure, identity, cloud, and web applications, with prioritization of demonstrated attack paths and retesting after fixes. Horizon3 says more than 7,000 organizations use the platform. The sources do not disagree; the Pax8 announcement is described as a channel expansion rather than a vulnerability or incident disclosure.

• On 13 October 2026, Horizon3 promoted Keith Poyser from vice president for EMEA to general manager, EMEA.
• Since joining in September 2024, Poyser grew the EMEA team from eight to more than 110 people.
• EMEA revenue grew more than 260% in the last fiscal year, and Horizon3 opened an EMEA headquarters in Amsterdam.
• Poyser previously held leadership roles at SentinelOne, Palo Alto Networks, and IBM.
• Horizon3 expanded its Pax8 partnership so European managed service providers can offer NodeZero through the Pax8 Marketplace.
• NodeZero supports autonomous testing across infrastructure, identity, cloud, and web applications, prioritizes demonstrated attack paths, and retests fixes.
• Horizon3 says more than 7,000 organizations use the platform; the Pax8 news is a go-to-market expansion, not a vulnerability disclosure.