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Wikimedia Will Not Voluntarily Recognize Union a Supermajority of Its Workers Want
(www.404media.co)
This is a most excellent place for technology news and articles.
Yes, a company I worked for did. They were a mission-driven org that was established to reduce poverty in historically disadvantaged groups. Along the way they, like many mission-driven orgs, became so poorly managed that their employees got pissed at them and decided to form a union. The org voluntarily recognized them, and now gets kicked in the face every 3-4 years during negotiations because the org is still poorly run.