Ah but that's different. "Company nouns" are not used as collective, they refer to a singular entity - the registered company, not it as a body of people.
Note while 'just' a style guide, The Economist - like me - seems (note not 'seem' ;)) not to consider "Tesco" _et al_ to be collective nouns _per se_.
> A government, a party, a company (whether Tesco or Marks
> and Spencer) and a partnership (Skidmore, Owings &
> Merrill) are all **it** and take a singular verb.