The Business Energy Survey questioned 1,500 managers. It found that one in three IT managers worked an extra 14 hours a week without pay - equivalent to two working days. The CMI said the results showed that firms fail to understand the needs of their most important assets.
A quarter of IT managers felt their organisations had an authoritarian culture and 34% said they felt exploited, according to the study, commissioned by employment services company Adecco. Work harmed family life according to 56% of managers.