They organize regional conferences, outreach, and global events such as Wikimania.
[1][2] Wikimedia Deutschland (WMDE) is the oldest chapter, holding its first meeting in 2004.
[3][4] Some chapters such as WMDE get some of their funds directly from grants and supporting memberships.
Some others get their funds primarily from annual plan grants from WMF.
As of 2019, roughly 10% of the WMF budget is distributed in this way to chapters and thematic organizations.