Last year's Census shows there were 213 ethnic groups in New Zealand. The number of Chinese, Indian, and Filipino people had increased significantly since 2006.
The number of Hindus and Muslims rose 39.6 per cent to 89,919, and the number of Sikhs doubled to 19,191.
Ms Cassidy-Mackenzie said after-five-type events often alienated staff who did not drink, were religious, were part of the older workforce or had children, so instead family-friendly events or team building activities during work time were a better option.
Supermarket vouchers were also being given instead of hams so staff could choose what suited their lifestyle or needs.
The general manager of recruitment agency Randstad, Penni Hlaca, said she had noticed a move away from big boozy parties. Feedback from clients was they enjoyed doing something relaxing and fun.
Her staff had decided on an Amazing Race-type activity where they had to follow clues.