In 1991 the family-owned business grows with new leadership from Bo and Tom Martin.
![A photo of a DNA strand and gas canisters](https://www.middlesexgases.com/wp-content/uploads/2020/11/1991_Bo-Tom.jpg)
As the Boston market started to shift away from fabrication and towards research and development firms, a new leadership at Middlesex Welding Supply emerged. In 1991, Joseph “Bo” Martin became CEO and his brother Tom became company President.