Alexandra Daitch is a prominent American billionaire heiress and shareholder of Cox Enterprises, one of the largest privately held diversified companies in the United States. She is a fourth-generation member of the powerful Cox family, whose industrial empire began in 1898 when her great-great-grandfather, James M. Cox, purchased the Dayton Evening News.

Alexandra is the daughter of W. Duncan MacMillan, a director of Cargill, which suggests a background steeped in two distinct but equally powerful American dynasties: media/auto services (Cox) and global commodities (Cargill). She received an education befitting her lineage, graduating from Brown University. Her upbringing ensured she was prepared for the long-term stewardship and strategic governance required to maintain control of the massive, value-driven Cox enterprises.

Alexandra Daitch’s career path is centered on her role as a major shareholder and active member of the family leadership overseeing Cox Enterprises. Unlike the company’s current CEO, Alex C. Taylor, who is a great-grandson of the founder, Alexandra’s influence comes from her powerful equity stake and her position within the complex family trusts.

Her professional involvement is focused on governance and the preservation of family assets. Cox Enterprises famously went private in 1985, an event that shielded the company from public market pressures and allowed the family to focus on long-term growth and core values. The company has since successfully shifted its focus to two dominant sectors: Cox Communications (cable and broadband) and Cox Automotive (Autotrader, Kelley Blue Book, Manheim). As a key equity holder, Daitch’s primary function is ensuring the continuity of the family’s wealth and adherence to their century-old mission of being 'good citizens' and responsible owners.

Alexandra Daitch is part of a family deeply committed to philanthropy, a legacy formalized by the creation of the James M. Cox Foundation upon the founder's death in 1957. The foundation's bylaws mandate a strong focus on human services and conservation of nature.

• Cox Conserves: The company’s flagship sustainability program, which has invested over '$100 million' since 2007 to achieve goals like zero waste to landfills by 2024 and carbon/water neutrality by 2034.
• Community and Education: Her family supports various educational endowments and cultural institutions, reflecting the civic-minded spirit of the founder.
• Family Governance: The family's belief in being 'good citizens of the communities we serve' through financial support and volunteerism is a core value guiding the use of the family's vast resources.