Dispel Wicket Industrial Gateway vs Zscaler IoT and OT Security: Side-by-Side Comparison (2026)

Short answer

Mid-market and enterprise OT teams managing distributed assets across air-gapped or NATed networks should evaluate Wicket Industrial Gateway for its zero trust remote access that doesn't require internet connectivity at each site; offline mode and Wicket chaining directly address the segmentation patterns of Purdue model deployments. The 65,000+ protocol support and NIST PR.AA coverage for access control reflect a platform built for OT's protocol diversity, not retrofitted from IT tooling. This isn't for buyers primarily concerned with detecting anomalies in operational traffic; Wicket prioritizes secure connectivity and data streaming over continuous monitoring, leaving that burden on downstream analytics layers. Enterprise security teams managing sprawling IoT and OT networks will see immediate value in Zscaler IoT and OT Security's agentless device discovery and segmentation, which bypasses the usual firmware compatibility headaches that plague traditional firewall-based approaches. The platform's zero trust segmentation without agents covers both ID.AM asset management and PR.AA access control, two areas where most OT shops have critical blind spots. Skip this if your environment is heavily air-gapped or your vendors won't tolerate cloud-based visibility; the cloud deployment model is a feature for most, a non-starter for some.