Companies registered by day in May 1931
- Friday 1 May - 2 companies registered
- Saturday 2 May - 2 companies registered
- Monday 4 May - 4 companies registered
- Wednesday 6 May - 2 companies registered
- Thursday 7 May - 3 companies registered
- Saturday 9 May - 2 companies registered
- Sunday 10 May - 1 company registered
- Monday 11 May - 3 companies registered
- Wednesday 13 May - 2 companies registered
- Thursday 14 May - 2 companies registered
- Friday 15 May - 3 companies registered
- Saturday 16 May - 2 companies registered
- Monday 18 May - 1 company registered
- Tuesday 19 May - 3 companies registered
- Wednesday 20 May - 3 companies registered
- Thursday 21 May - 1 company registered
- Saturday 23 May - 1 company registered
- Tuesday 26 May - 2 companies registered
- Wednesday 27 May - 3 companies registered
- Thursday 28 May - 3 companies registered
- Friday 29 May - 2 companies registered