| Year | Detail |
| 1923 |
Ecolab was founded as Economics Laboratory Inc. |
| 1926 |
Economics Laboratory receives its first patent for Floroscene. |
| 1933 |
Introduced Satin Wax for floors. |
| 1936 |
Launched MikroKlene a germicidal rinse for dishes and glassware . |
| 1949 |
Economics Laboratory introduces Electrasol dishwashing detergent for the consumer market. |
| 1951 |
Company has established Dairy division. |
| 1953 |
Company has started operations in Canada. |
| 1956 |
Soilax AB, a fully owned subsidiary, is formed in Stockholm, Sweden. |
| 1957 |
Industrial division is established by the company. |
| 1964 |
The company acquired Magnus Chemical Company Inc. which provide company to enter into industrial speciliaty market. |
| 1972 |
The company has acquired Raburn Products, maker of dishmachine racks and dishroom carts. |
| 1975 |
Economics Laboratory opens first satellite research center in Rio de Janeiro, Brazil. |
| 1980 |
The Economics Laboratory Foundation is formed. |
| 1986 |
Economics Laboratory, Inc. has changed its name to Ecolab. |
| 1994 |
Ecolab acquires Kay Chemical which assit company to tap the quick-service restaurant market. |
| 2005 |
Ecolab opens a new Global Research, Development & Engineering Center in Eagan, Minnesota. |
| 2008 |
Ecolab’s European headquarters opened in Zurich, Switzerland. |
| 2011 |
Ecolab acquires Naperville, the deal amounting to $8 billion. |
| 2013 |
The company bought Champion Technologies a privatly held co. for $2.2 billion. |
| 2014 |
A new manufacturing plant opens on Jurong Island, Singapore. The plant will serve energy customers of Nalco Champion's in Asia Pacifc. |
| 2017 |
Ecolab acquires Laboratoires Anio. |
| 2019 |
Ecolab acquires Lobster Ink. The acquistion will company to meet the training requirements of foodservice and hospitatlity companies across 130 countries. |
| 2021 |
Ecolab opens the Healthcare Advanced Design Center in Eagan. |