They have over 500 employees[2]. Not sure why they need so many, considering average salary is $100k/yr.
[1]: https://upload.wikimedia.org/wikipedia/foundation/1/1e/Wikim...
[2]: https://wikimediafoundation.org/role/staff-contractors/#prod...
https://wikimediafoundation.org/role/staff-contractors/
According to the Form 990, there were 320 US employees and a small number of non-US employees in 2020:
https://upload.wikimedia.org/wikipedia/foundation/e/e4/Wikim...
Note the explanation of what's included in the salary costs here:
https://meta.wikimedia.org/wiki/IRS_tax_related_information/...
So I reckoned the average salary cost is more like $200k per person:
https://lists.wikimedia.org/hyperkitty/list/wikimedia-l@list...
Top earners are here:
https://upload.wikimedia.org/wikipedia/foundation/e/e4/Wikim...
I would be totally fine with them hiring hundreds of translators to expand Wikipedia in other languages. English Wikipedia has 4x as many entries as most other languages. They clearly have the cash that they're spending on weird grants and projects that seem more tangential to their original purpose.