Companies established in 1860

Wyeth Pharmaceuticals Inc. was a pharmaceutical company until it was purchased by Pfizer in 2009. The company was founded in Philadelphia, Pennsylvania, in 1860 as John Wyeth and Brother. Its headquarters moved to Collegeville, Pennsylvania, and Madison, New Jersey, before its headquarters were consolidated with Pfizer's in New York City after the 2009 merger.

Carmeuse is a Belgian mining company which produces lime and limestone. The Carmeuse Group has production facilities in Europe, North America and Africa. Its head office is located in Louvain-la-Neuve and the company Chief Executive Officer is Rodolphe Collinet.