
We measure from present day human workforce, events prior to this year are not counted.
A company which goes bankrupt or otherwise downsizes it's workforce due to lowered turnover or marketshare shall not be counted.
The company must at least maintain 90% of it's present turnover/volume in the answer year (inflation adjusted) to not be considered downsized (to give leeway for market variance).
Factory workforce can include managers, technicians, engineers etc. but excludes the executive and administrative employees, I.E. this question is regarding the workforce which works on a company's core business in it's factory, not the general overhead employees required by any company of similar size.
EDIT: Companies with fewer than 50 employees total are excluded from consideration.
@3721126 Outsourcing counts if the company outsourced to does not hire employees as a result of it's increased turnover/marketshare.