Ventana Medical Systems | 23,539 followers on LinkedIn. This company is now integrated into the Roche Group, united in our commitment to do now what patients need next. | Ventana Medical Systems, Inc., a member of the Roche Group, innovates and manufactures instruments and reagents that automate tissue processing and slide staining for cancer diagnostics. VENTANA solutions are used in clinical histology and drug development research laboratories worldwide. The company’s intuitive, integrated staining and workflow management platforms that optimize laboratory efficiencies to reduce errors – support diagnosis and inform treatment decisions for anatomic pathology professionals.