Discover how Johnson Matthey grew from its beginnings in 1817 to become an international leading speciality chemicals company
1817 - 1850Establishing the company
- 1817
Percival Norton Johnson establishes business as gold assayer in London
- 1822
Offices moved to 79 Hatton Garden
- 1832
Percival Norton Johnson took George Stokes into partnership – known as Johnson & Stokes
- 1837
Percival Norton Johnson took WJ Cock into partnership – company known as Johnson & Cock