Black Diamond Advisory is a digital finance company. Its services include financial transformation, change management, and process automation. The company offers OneStream solutions which enable financial consolidation, account reconciliation, task management, tax provision, transaction matching, planning and forecasting, people and capital planning, project planning, and reporting and analytics. Black Dimond Advisory provides support in various practices such as manufacturing and industrial, retail, education, healthcare, technology, transportation, logistics, gaming, banking, and other areas.