[4] He wrote a paper on the industry for storing digital files online[4] and started developing the Box service in 2004.

[4] In 2005, Levie dropped out of school to work on Box full-time with long-time friend and cofounder Dylan Smith.

[5][6][7] Initially, the software was developed in the attic of Smith's parents' house, then in a garage owned by Levie's uncle that had been converted into a living space.

[8] The founders relied on their own money as well as support from friends and family members until Mark Cuban invested $350,000 in seed funding in 2005.

[11] The company started developing its first industry-specific features for heavily regulated industries in 2012, when it introduced tools for HIPAA compliance at healthcare organizations.

[19][20] In May 2020, Box announced a new version with improved integration with videotelephony software, as well as a feature called Collections that allows users to customize their personal folder structure due to the increase in remote work during the COVID-19 pandemic.

[22][19] In August 2024, Box and Slack announced an expanded partnership that introduced secure AI capabilities to enterprise content management.

[23][24] Box acquired Increo Solutions, which developed software for previewing and collaborating on digital files, in October 2009.

[25] In 2013, the company acquired dLoop,[26] Folder iOS, an application designed for storage, file management, and sharing,[27] and Crocodoc.

[38] Box announced in January 2024 that it had acquired Crooze, a content management app maker, for an undisclosed amount.

[39] In August of that same year, the company announced it had acquired Alphamoon, a Polish-based startup specializing in intelligent document processing.

[47] Box began as a simple service for storing, sharing, and syncing files among different users and devices, but developed over time into an enterprise product with features for security and compliance.