"This [Commercial Astronaut] is distinct from an otherwise non-government
astronaut (such as Charlie Walker https://en.wikipedia.org/wiki/Charles_D._Walker ) who flies while representing a
non-government corporation but with funding and/or training coming from
So neither of these two have made it to orbit and total duration of 3 flights
that reached space was under 73 minutes and much less than that in space. So
there is no way to get to more employees in space for at least one year.
I also looked at "Teacher in Space" project - none made it to space and
"Educator Astronaut Project" but these were required to become NASA Astronauts.
These are, I suggest, going in own capacity even though likely also private
company employees. If not satisfied by that, the most days in orbit for all
tourists combined in any 12 month period appears to be 37 days (12+14+11).
Ultimately the Juno consortium failed to raise the entire sum, and the Soviet
Union considered cancelling the mission. However Mikhail Gorbachev https://en.wikipedia.org/wiki/Mikhail_Gorbachev directed the mission to proceed
at Soviet cost.
Also only 8 days and was before claim started.
For Tiangong space station, "With a duration of 15 days, Shenzhou 10 was China's
longest manned space mission to date, until Shenzhou 11's 30 day mission to
Tiangong-2 in 2016."
Only one visit to Tiangong-2, as mentioned above only 30 days.
That covers all the crewed space stations during the period of the claim. I
don't believe there will be any long duration missions without a stay in a space
station (too cramped in most launch vehicles and longest space shuttle mission
during claim is 15 days 22 hours). Due date is 2018/07/24 so less than a year to
that due date. So I think that covers it, it looks impossible to have more
employees in space (without direct government subsidy) than any single
government or international organisation for at least a year. Therefore I think
the claim can be judged.