None.

Lord Sugar makes sexual references in the boardroom but the meaning of what the sexual reference is, is difficult to understand.

A woman tries to act as if the chilli sauce is really spicy but she moans in a sexual manner, this isn't noticed until the whole team sees this, it is shown again.

None.

Very mild language used, the strongest word that may be seen in episodes is usually "Shit".

Very occasional uses of the f-word (once per season, if that)

Some parts in the boardroom can be a bit intense and can make you get to the edge of your seat about who may get fired when it comes to the firing scenes. Other than that there are no jump-scares, there are only thrilling parts (in the boardroom usually).

Mild. Arguments between candidates can get really intense in the boardroom and in the tasks. Very Mild.