# Merck & Co. headquarters

entity: /record/merck.md  
predicate: headquarters  
page: /record/merck/headquarters  
as_of: 2026-11-08  
cite: AsOf. "Merck & Co. headquarters: Rahway", undated. Claim clm_BFFD023A5D40, https://asof.is/claim/clm_BFFD023A5D40, accessed 2026-11-08. Source: https://www.merck.com/contact-us/.  

As of November 8, 2026, Merck & Co.'s headquarters on the AsOf record is Rahway, undated on the record, from 2 primary sources (merck.com and sec.gov).

1 claim on Merck & Co.'s headquarters, 1 open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.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 2026-11-08.

- [Merck & Co.](/record/merck.md) | headquarters | Rahway | valid undated to present | conf 0.95 | valid | [clm_BFFD023A5D40](/claim/clm_BFFD023A5D40.md)
  sources: https://www.wikidata.org/wiki/Q247489, https://www.merck.com/contact-us/, https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000310158

## Every dated value

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 Superseded claims stay visible.

- [Merck & Co.](/record/merck.md) | headquarters | Rahway | valid undated to present | conf 0.95 | valid | [clm_BFFD023A5D40](/claim/clm_BFFD023A5D40.md)
  sources: https://www.wikidata.org/wiki/Q247489, https://www.merck.com/contact-us/, https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000310158

## Questions this record answers

### What is Merck & Co.'s current headquarters?

Rahway, undated on the record, from 2 primary sources (merck.com and sec.gov). The record asserts this claim as of November 8, 2026 (status valid, confidence 0.95).


## Read on

- This page: /record/merck/headquarters (markdown: /record/merck/headquarters.md)
- Entity twin: /record/merck.md · timeline: /timelines/merck.md
- Every company's headquarters: /facts/headquarters.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.