This white paper presents O-RAN ALLIANCE's interests in industrial engagement to show the benefits of O-RAN architecture in several vertical industries. It starts with brief introduction of O-RAN Architecture, followed by an analysis of vertical industry use cases and requirements. Opportunities and benefits of O-RAN Architecture corresponding to each use case are discussed in the subsequent section. O-RAN key solutions, field trials and deployments are presented, followed by O-RAN potential enhancement features to further accommodate vertical demands. This white paper concludes with key findings and future visions toward better vertical industry O-RAN network deployment.