Companies registered by day in May 1918
- Wednesday 1 May - 1 company registered
- Thursday 2 May - 1 company registered
- Friday 3 May - 1 company registered
- Saturday 4 May - 1 company registered
- Wednesday 8 May - 1 company registered
- Thursday 9 May - 1 company registered
- Saturday 11 May - 2 companies registered
- Monday 13 May - 1 company registered
- Tuesday 14 May - 1 company registered
- Friday 17 May - 1 company registered
- Wednesday 22 May - 1 company registered
- Friday 24 May - 1 company registered
- Saturday 25 May - 1 company registered
- Monday 27 May - 1 company registered
- Friday 31 May - 1 company registered