Her husband, Dennis Troper, said Wojcicki had been suffering from non-small cell lung cancer for the past two years.

“Susan was not only my best friend and life partner, but also a brilliant mind, a loving mother and a dear friend to many,” Troper said in a Facebook post.

“We are heartbroken but grateful for the time we had with her,” Troper said, adding that she had an “immeasurable” impact on her family and the world.

Wojcicki was “one of the most prominent women in Silicon Valley” and enabled the two Google founders to work from her garage before becoming one of the search engine giant’s first employees, CNN reported.

While working for Intel in 1998, Wojcicki rented her garage to Google founders Sergey Brin and Larry Page, who were graduate students at Stanford and were in the process of developing the search engine.

Wojcicki recognized Google’s potential, became its marketing manager and stayed with the technology company for 25 years.

“Incredibly saddened by the loss of my dear friend Susan Wojcicki, who battled cancer for two years,” Google CEO Sundar Pichai said in a post on X. “She is as central to Google’s story as anyone, and it’s hard to imagine the world without her.”

Wojcicki also served as CEO of YouTube for nine years before stepping down in 2023 to focus on her family, her health and projects that were close to her heart.