Henry worked in three international schools and two bilingual schools with student populations ranging from 250 to 1300. His responsibility in the international schools was to oversee and provide leadership for non-academic functions, which included the Admissions & Marketing, Finance, Human Resources, Public Relations, IT Help Desk, Facilities Management, Auxiliary Services, Procurement, and Inventory departments. These schools had very culturally diverse teaching and family populations. All the schools are accredited by associations of schools and colleges (US) and the three international schools are authorized by IBO. He published a booklet titled Preparing Host Country Support Staff for their Roles in International Schools.

In less than two years, Henry raised the service standards of his support staff to a level that equals to best practices of great international schools. The majority of his departments and offices received more than 90% of customer satisfaction from parents and teachers. Three offices obtained 100% customer satisfaction over three consecutive years.