# Wikimedia Foundation headquarters

entity: /record/wikimedia-foundation.md  
predicate: headquarters  
page: /record/wikimedia-foundation/headquarters  
as_of: 2026-11-01  

As of November 1, 2026, Wikimedia Foundation's headquarters on the AsOf record is San Francisco, undated on the record, from a primary source (wikimediafoundation.org). The record holds 1 claim on Wikimedia Foundation's headquarters, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.

## Current headquarters

What the record asserts on 2026-11-01.

- [Wikimedia Foundation](/record/wikimedia-foundation.md) | headquarters | San Francisco | valid undated to present | conf 0.95 | valid | [clm_E15133CF4D67](/claim/clm_E15133CF4D67.md)
  sources: https://www.wikidata.org/wiki/Q180, https://wikimediafoundation.org/contact/

## Every dated value

One claim per line, oldest first. Superseded claims stay visible.

- [Wikimedia Foundation](/record/wikimedia-foundation.md) | headquarters | San Francisco | valid undated to present | conf 0.95 | valid | [clm_E15133CF4D67](/claim/clm_E15133CF4D67.md)
  sources: https://www.wikidata.org/wiki/Q180, https://wikimediafoundation.org/contact/

## Questions this record answers

### What is Wikimedia Foundation's current headquarters?

San Francisco, undated on the record, from a primary source (wikimediafoundation.org). The record asserts this claim as of November 1, 2026 (status valid, confidence 0.95).


## Get this data

- JSON: /v1/entities/wikimedia-foundation/headquarters (this fact) · /v1/entities/wikimedia-foundation?predicates=headquarters (with the entity's coverage; add as_of=YYYY-MM-DD for a date)
- MCP: timeline(entity: "wikimedia-foundation", predicates: ["headquarters"]) for every dated value · fetch(id: "/record/wikimedia-foundation/headquarters.md") for this page
- Entity twin: /record/wikimedia-foundation.md · timeline: /timelines/wikimedia-foundation.md

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.