The Space Weather Seminar will bring industry, academia, and high-level policy and decision makers together in order to engage in a lively dialog about space weather. The Seminar will address the truly variant effects of space weather on today’s technologies. It will highlight space weather’s potential impacts on several crucial sectors, including communications, navigations, spacecraft operations, aviation, and electric power. The presentations and debate at the Space Weather Seminar will also focus on identifying the highest priority needs for operational services that can inform future research and identify new value-added capabilities which can be transitioned into effective applications. The conference will promote communication among researchers, space weather service providers, and users of space weather services. Pursuant to this, the ES:GC2 Space Weather Seminar will focus on the challenges of ensuring that the EU can meet its Horizon 2020 objectives for space, with a specific focus on securing the integrity of the vital services provided by orbital equipment and technologies.