Jack in the Box is a fast-food restaurant chain headquartered in San Diego, California, United States. The restaurant was founded by Robert O. Peterson in 1951 in San Diego, originally as a drive-through hamburger stand.

It quickly became popular for its innovative menu and the concept of offering both fast food and fast casual dining options. The headquarters of Jack in the Box are located in San Diego, California. The company operates over 2,200 locations across 21 states in the United States.

It primarily serves customers in the western and southwestern regions of the country. The main products offered by Jack in the Box include a variety of hamburgers, chicken sandwiches, tacos, and breakfast items. It is known for its famous Jumbo Jack hamburger and popular sides like curly fries and milkshakes.

In addition, it also offers a wide selection of salads, desserts, and beverages. Jack in the Box operates primarily in the United States and does not have a significant global presence. The company does not have any noteworthy subsidiaries, joint ventures, or partnerships.

In terms of market position, Jack in the Box is one of the largest hamburger chains in the United States. It competes with other fast-food giants such as McDonald's, Burger King, and Wendy's. While it may not have the same global sales as some of its competitors, Jack in the Box has a strong presence in its target markets.

Over the years, Jack in the Box has undergone significant changes to its strategy and product lineup. In the 1990s, it rebranded itself as a fast-casual dining restaurant, offering a wider range of menu options. However, the company later decided to refocus on its core fast food offerings and closed many of its sit-down restaurants.

Currently, Jack in the Box continues to expand its footprint in the United States. It regularly updates its menu to cater to changing consumer preferences and trends. The latest updates on the company include the addition of new limited-time offerings and the expansion of its delivery services.

In conclusion, Jack in the Box is a well-established fast-food restaurant chain based in the United States. With its headquarters in San Diego, it offers a wide range of fast food and fast casual dining options. While primarily operating in the United States, it has a strong market presence and continues to evolve its menu and services to meet customer demands