Introduction
John C. Miller is a prominent businessman and entrepreneur best known for his role in leading innovative technology ventures in industries such as restaurant automation and biometric payment systems. Although much of his professional work is centered around CaliGroup, a company he helms, he has gained wider public attention through his personal life, especially his relationship with actress Jennifer Garner. In this article, we explore the career of John C. Miller, his achievements, his personal life, and his influence on the tech and restaurant industries.
Early Life and Career
John C. Miller was born in 1978 and raised in Los Angeles, California. Not much is publicly known about his early life, as he has kept his childhood and family background relatively private. What is clear, however, is that Miller had a strong academic foundation. He graduated from the University of Redlands with a degree in Economics before continuing his education at Stanford Law School, where he earned a Juris Doctor (JD). These educational achievements laid the groundwork for his later ventures in law, business, and technology.
His career path began in law, where he worked in various legal capacities, particularly in corporate law and intellectual property. His background as a lawyer gave him the skills to navigate complex business negotiations and legal matters. However, it wasn’t long before Miller pivoted from law to business, capitalizing on his deep understanding of economics and technology.
CaliGroup and PopID: Transforming the Restaurant Industry
Miller’s most significant business achievement is his role as the CEO of PopID and the Chairman of CaliGroup. CaliGroup is a technology holding company with a focus on restaurant automation and digital solutions for the foodservice industry. Under Miller’s leadership, CaliGroup has become a key player in the world of fast food and technology innovation, particularly with its work on automating restaurant kitchens and integrating biometric payment systems.
PopID and Biometric Payments
PopID is a biometric payment company that utilizes facial recognition technology to enable fast and secure payments at restaurants and retail stores. Through PopID, Miller has helped develop a system where customers can pay by simply scanning their faces, which is expected to streamline customer experiences and reduce wait times at restaurants. This type of automated payment is rapidly growing in popularity, and PopID has formed partnerships with major companies in the food industry to implement this technology globally.
Miller’s work with PopID aligns with his vision of efficiency and customer-centric service, making it easier for consumers to interact with businesses. The goal is not only to enhance convenience but also to contribute to cost reduction and greater operational efficiency within restaurants.
Net Worth and Business Acumen
While John C. Miller’s net worth has not been publicly disclosed in detail, it is widely believed that his business ventures and investments have led him to amass significant wealth. His role in CaliGroup and PopID alone places him at the helm of companies valued in the millions. Additionally, his previous involvement in technology and investment ventures has contributed to his financial standing.
Miller’s success can be attributed to his forward-thinking approach to business, particularly in a sector like the restaurant industry, which has traditionally been resistant to the kinds of technological innovations he advocates. His understanding of both technology and business operations has made him a valuable leader in the ever-evolving restaurant and hospitality sector.
Personal Life: Relationship with Jennifer Garner
John C. Miller has maintained a relatively private personal life, but his relationship with Jennifer Garner has brought him into the public eye. Jennifer Garner, an A-list actress best known for her roles in Alias, 13 Going on 30, and various romantic comedies, began dating Miller in 2018. The relationship was kept mostly out of the limelight, with both Miller and Garner preferring to maintain a low-profile life away from constant media scrutiny.
Despite the attention that comes with being associated with a major Hollywood star, Miller has largely stayed away from the celebrity scene, focusing instead on his business ventures. Their relationship, though occasionally covered by the media, is characterized by its privacy and stability. The couple briefly separated in 2020, but reports suggest they reconciled and continue to be together as of 2025.
Miller’s relationship with Garner has made him a subject of interest for those following celebrity news, but it’s clear that he values his business pursuits and family life over public recognition.
Family and Children
John C. Miller was previously married to Caroline Campbell, a professional violinist. The two married in 2005 but later divorced in 2018. They have two children, though details about their children are kept private, and Miller has consistently shielded them from the public spotlight. His divorce from Campbell was amicable, and he has maintained a cooperative co‑parenting relationship.
Public Image: A Private Business Leader
John C. Miller is a unique figure in the business world, as his professional success and entrepreneurial ventures rarely make headlines unless tied to his relationship with Jennifer Garner. Unlike many high-profile executives, Miller has chosen to keep his personal and professional life separate, avoiding public appearances and interviews.
His business persona is that of a visionary leader in restaurant automation and biometric technology, and his focus on innovative solutions to improve customer service and business operations has earned him recognition in industry circles. Despite his relatively low public profile, Miller’s influence on the future of dining and payments cannot be understated.
Conclusion
John C. Miller’s journey from a corporate lawyer to a leading technology executive is a testament to his vision, ambition, and entrepreneurial spirit. As the CEO of PopID and Chairman of CaliGroup, he has reshaped how we think about the intersection of technology and the food industry. His focus on biometric payments and restaurant automation positions him as a forward-thinking leader in restaurant tech innovation.
While Miller’s personal life — particularly his relationship with Jennifer Garner — has brought him some level of public recognition, his legacy will likely be defined by his business contributions and the technological advancements he has introduced to the restaurant and payment industries. Miller’s discretion and low-profile lifestyle ensure that he remains a figure focused on long-term goals rather than fleeting fame.
If you’d like to explore any specific aspects of his career or relationship in more detail, feel free to reach out!
