ACEN

Overview

Its services are grouped into four areas: Managed Detection & Response (MDR), Infra & Cloud Security, Security Advisory and Identity Solutions. The company states it was founded in 2007 and serves more than 200 active customers. It has been ISO 27001 certified since 2022 and describes itself as vendor agnostic, working with partners including Palo Alto Networks, Microsoft Security, Google Security Operations, SentinelOne, Tenable, CyberArk and IBM. ACEN grew out of IS4U, an identity and access management firm that expanded into a broader cybersecurity offering. Within that leadership, Christophe Vereycken handled operations and Wouter Decruy financial strategy, while Jeffrey Van Vyve, who joined IS4U as sales manager, became Managing Partner responsible for sales and marketing in 2025. The company reports team growth of 20% per year and counted more than 100 people in July 2025. ACEN NV is registered under company number BE 1004.039.773. In February 2025 ACEN announced a partnership with Illumio for microsegmentation. ACEN MDR works with Google, SentinelOne and Silverfort. Reference customers include the Federaal Planbureau, for which ACEN delivers managed Microsoft 365 security and a 24/7 managed SOC.

Stated facts & numbers

• Founded: 2007
• Headquarters: Kontich (Antwerp)
• Employees: 51-200 (more than 100 in 2025)
• Customers: More than 200 active customers, including Federaal Planbureau
• Services: MDR, Infra & Cloud Security, Security Advisory, Identity Solutions
• Certification: ISO 27001 (2022)
• Company number: BE 1004.039.773