In this episode, we take a practical look at ten OPC UA servers that are worth paying attention to as we move into 2026. This is not a ranking and not a vendor pitch. It’s a grounded discussion based on how these servers behave in real industrial environments — from legacy machines to modern IIoT platforms. We talk about reliability, protocol coverage, ease of maintenance, and how well these servers fit into larger architectures like MQTT, UNS, and cloud analytics. You’ll also hear why the “best” OPC UA server often depends on context, not feature lists. It’s a calm, experience-based guide for anyone responsible for equipment connectivity or plant data foundations. For deeper reading and more hands-on insights, visit iiotblog.com.