The document discusses how leveraging open data can help optimize commercial insurance processes by collecting online open data to accurately classify small and medium enterprise (SME) client activity, industry codes, and locations in order to reduce errors in submissions and policy information that result in improper premium calculations. It proposes using this data during underwriting to quickly identify risks and unwanted clients, as well as before renewals to discover hidden risks and increase premiums accordingly. A case study example shows how one insurance carrier was able to prevent 31% premium leakage and increase revenue by 4% by using this open data to correctly identify SME client activities and addresses.