I recently worked with a customer who complained that their restrooms were always smelly, yet the customer claimed the custodial staff cleaned them at least twice a day. When I observed the cleaning procedure, I noticed that the custodians mixed a neutral floor cleaner in the mop bucket (no disinfectant), and further, the restroom floors were a grout/tile combination, so the (somehwat dirty) mop was not providing the necessary agitation on the grout lines. In addition, the custodian only used a Johnny mop to apply non-acid bowl cleaner on the toilets/urinals, and again, did not use a toilet brush, white pad, or other tool to loosen/remove the soil. This is a classic example of improper cleaning procedures, poor training, and lack of understanding of effective cleaning. (These situations certainly keep me in business.)
It appears that the large manufacturers are buying up everything that is not tied down. Tennant has made several recent acquisitions as has Nilfisk Advance, Rubbermaid and others. Some may be for international positioning in what are seen as growth markets outside the USA.