about sumit

software house

  • sumit is a small, flexible software house
  • with shift rosters as specialism,
  • founded in 1997.


  • doing business with sumit must be a party worth repeating
  • a good product
  • at a fair price
  • delivered and received with a smile

quality, 7x24

  • better a few things done well, than many just half
  • core competence: shift rosters.
  • HQ in Gouda, NL.
  • works in Australia and Malyasia too

network of specialists


  • SUMit teams up in a network of professionals,
  • each an outstanding specialist in their field.
Photo Henk Jan

Henk Jan

  • Henk Jan is the driving force behind SUMit.
  • enjoys logical puzzles such as shift rosters.
  • works in Australia during Dutch winters.
Photo Leonard Verhoef


photo Mike


  • Mike Levyssohn runs MLict.
  • Mike is the guru for anything with a power plug: servers, PCs, networks, internet, peripherals.


new shift roster?

Shift roster design training

large roster?

shift roster software

a daily puzzle?

  • the daily puzzles gets impossible
  • every day is different set of work?
  • inquire about a tailored generator.

some sumit customers

solutions as simple as possible


  • simple solutions for difficult problems
  • pencil and paper often suffice
  • software when needed

hard shift roster?