Church & Dwight Co, Inc. is a major American manufacturer of household products that is based in Ewing, New Jersey. While it manufactures many items, it is best known for its Arm & Hammer line which includes baking soda and a variety of products made with it. Church & Dwight was ranked #652 in the Fortune 500 listing of companies in 2017.
The company was founded in 1846 to unify two companies created by John Dwight of Massachusetts and his brother-in-law, Austin Church of Connecticut. Their partnership had begun in 1846 with the two founders selling sodium bicarbonate (also known as baking soda) that they refined in Dwight's kitchen.
The Arm & Hammer logo, which dates back to the 1860s, is often incorrectly claimed to have originated with tycoon Armand Hammer. Hammer was so often asked about the Church & Dwight brand, however, that he attempted to buy the company. While unsuccessful, Hammer's Occidental Petroleum in 1986 acquired enough stock for him to join the Church & Dwight board of directors.
In 2001 the consumer product line of Carter-Wallace was sold to Church and Dwight and MedPointe bought the diagnostics and drug businesses.
Church and Dwight acquired Orange Glo International, giving them OxiClean and Orange Glo in 2006. Church & Dwight was ranked 723 in the Fortune 500 listing of companies in 2010.
In 2017, MidOcean Partners agreed to sell Waterpik for $1 billion to Church & Dwight. At the time of the sale announcement, it was reported that Water Pik, Inc. had "$265 million of revenue in the fiscal year ended June 30, about 70% of which came from its water flosser products".