5 Biggest Massachusetts Companies and Stocks

4. Thermo Fisher Scientific Inc. (NYSE:TMO)

Total revenue (in billions): $39.2

Market cap as at 15th Jan 2023 (in billions): $229.0

One of the most valuable healthcare companies in the world by market cap, Thermo Fisher Scientific Inc. (NYSE:TMO). Thermo Fisher Scientific Inc. (NYSE:TMO) has grown through both organic and inorganic means with the latter including major acquisitions of Life Technologies Corporation, Alfa Aesar and PPD among others. The share price of Thermo Fisher Scientific Inc. (NYSE:TMO) decreased by 1% in the last year.