# Quizlet headquarters

entity: /record/quizlet.md  
predicate: headquarters  
page: /record/quizlet/headquarters  
as_of: 2026-10-31  

As of October 31, 2026, Quizlet's headquarters on the AsOf record is San Francisco, dated January 1, 2009, from a primary source (web.archive.org) and one further source (crunchbase.com). The record holds 1 claim on Quizlet's headquarters, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.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 2026-10-31.

- [Quizlet](/record/quizlet.md) | headquarters | San Francisco | valid 2009-01-01 to present | conf 0.80 | valid | [clm_F68F38DFB6F5](/claim/clm_F68F38DFB6F5.md)
  sources: https://web.archive.org/web/2010id_/http://quizlet.com/blog/quizlet-celebrates-its-fourth-birthday-with-a-ceo-and-20-million-impressions-per-month/, https://www.wikidata.org/wiki/Q7272716, http://www.crunchbase.com/organization/quizlet

## Every dated value

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 Superseded claims stay visible.

- [Quizlet](/record/quizlet.md) | headquarters | San Francisco | valid 2009-01-01 to present | conf 0.80 | valid | [clm_F68F38DFB6F5](/claim/clm_F68F38DFB6F5.md)
  sources: https://web.archive.org/web/2010id_/http://quizlet.com/blog/quizlet-celebrates-its-fourth-birthday-with-a-ceo-and-20-million-impressions-per-month/, https://www.wikidata.org/wiki/Q7272716, http://www.crunchbase.com/organization/quizlet

## Questions this record answers

### What is Quizlet's current headquarters?

San Francisco, dated January 1, 2009, from a primary source (web.archive.org) and one further source (crunchbase.com). The record asserts this claim as of October 31, 2026 (status valid, confidence 0.80).


## Get this data

- JSON: /v1/entities/quizlet/headquarters (this fact) · /v1/entities/quizlet?predicates=headquarters (with the entity's coverage; add as_of=YYYY-MM-DD for a date)
- MCP: entity_state(entity: "quizlet", predicates: ["headquarters"], scope: "all")
- Entity twin: /record/quizlet.md · timeline: /timelines/quizlet.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.