ROH Employee Directory
Chemical ManufacturingUnited States201-500 Employees
ROH has about 329 employees across 5 continents, most of them in North America. By country, the largest groups are United States Of America (56%), United Kingdom Of Great Britain And Northern Ireland (16%) and India (5%). Administrative and Community & Social Services make up 32% of the profiles with a known department. ROH's workforce spans 14 departments. ROH's workforce fell 32% between July 2025 and July 2026.