Grossman was an American businessman, politician, and philanthropist who served as a member of the Massachusetts House of Representatives and the Massachusetts Governor's Council and was treasurer of Grossman's, a building materials company.

[3] During his tenure on the council, Grossman was a staunch opponent of Governor James Michael Curley.

He defeated Francis Andrew Walsh in the Republican primary 71% to 29%, but lost in the general election to Democrat John T. Driscoll, 62% to 37%.

In 1969, the Grossmans sold the business to Evans Products Co. By the time of the sale, Grossman's had become the largest lumber and building materials retailer in New England and had also become involved in the redevelopment of vacant mill buildings.

[2] In 1933, Grossman founded Home Owners Federal Savings and Loan Association of Boston.

[2][7] Grossman also served a director of the Quincy Cooperative Bank and Boston World Trade Center.

[9] In December 1963, Grossman married Esther Starr, a teacher at Medford High School, at Temple Sinai in her hometown of Brookline, Massachusetts.