In 1888, Edwin Fisher developed the MekerFisher Burner, which was considered the most important improvement in burners since the introduction of the original Bunsen burner. This innovation was a significant contribution to the field of scientific supplies and products.

Chester G. Fisher established the Scientific Materials Company in Pittsburgh, Pennsylvania in 1902 at the age of 20 to provide scientific tools for various industries, including the steel business.

The Scientific Materials Company was officially renamed the Fisher Scientific Company in 1925 to distinguish itself from other companies with generic names, and its catalog became widely used in laboratories worldwide.

In 1954, American virologist Jonas Salk developed the polio vaccine at the University of Pittsburgh using Fisher Scientific reagents, leading to a significant drop in polio incidence in the United States by 1961.

In 1956, the company changed its name to Thermo Electron Corporation to signify its broader focus on scientific research and technology solutions.

Thermo Fisher Financial Services was founded in 1995 as a part of Thermo Fisher Scientific Inc. to provide financial solutions tailored to the needs of laboratories and scientific institutions.

Thermo Fisher Scientific was formed through the merger of Thermo Electron and Fisher Scientific in 2006. The merged company, named Thermo Fisher Scientific, had about 30,000 employees and reported US$9 billion in combined revenue.

On February 3, 2014, Thermo Fisher Scientific acquired Life Technologies Corporation, leading to the formation of new reporting segments within the company.

On May 27, 2016, Thermo Fisher Scientific announced the acquisition of FEI Company for $4.2 billion, a manufacturer of electron microscopes.

On December 31, 2021, Thermo Fisher Scientific reached its all-time high stock closing price of 663.57. This marked a significant milestone for the company in terms of stock performance.

On December 31, 2022, Thermo Fisher Scientific reported a quarterly revenue of $11,450 million.

On March 31, 2023, Thermo Fisher Scientific reported a quarterly revenue of $10,710 million.

On June 30, 2023, Thermo Fisher Scientific reported a quarterly revenue of $10,687 million.

On September 30, 2023, Thermo Fisher Scientific reported a quarterly revenue of $10,574 million.

Thermo Fisher Scientific reported a revenue of $10.886 billion for the quarter ending December 31, 2023, showing a 4.93% decrease compared to the previous year.