Sectors Groups An industrial sector is a method of categorising different businesses based on their common business lines, IIESMS divides companies into four sectors. Below are the contact details of each of the sector chairpersons. Clodagh DunphyC.IIESMS C.Eng - Chairperson Sustainable Industry & Systems Section email John WellsC.IIESMS C.Eng - Chairperson Health, Safety, Decent Work & Excellence Section email Paddy McDonnellC.IIESMS C.Eng - Chairperson Fire Safety & Emergency Response Planning Section email Hans-Dieter SchinnerC.IIESMS C.Eng - Chairperson Business Processes Section email