Jamba

Jamba Juice was opened by Kirk Perron at California Polytechnic State University, San Luis Obispo. Perron, who worked as a supermarket manager and was also an avid cyclist and healthy-lifestyle advocate, opened the restaurant because he was dissatisfied with the quality of post-workout snacks, saying, “The marketplace was mostly filled with fat.” The first restaurant, named Juice Club, opened on March 31, 1990, in San Luis Obispo, California. It was incorporated in 1990 as Juice Club, Inc. in San Luis Obispo. By 1991, Juice Club had expanded to 19 locations by franchising, but Perron later abandoned the franchise model in favor of company-owned stores. In 1995, the chain was renamed Jamba Juice, drawing from a West African word for “celebration”. Jamba Juice acquired Zuka Juice, a rival juice bar, on March 24, 1999.

On March 13, 2006, Jamba Juice was purchased by Services Acquisition Corp. International for $265 million. A special-purpose acquisition company that was headed by Steven Berrard, the former CEO of Blockbuster Inc. Upon completion of the transaction, the publicly traded Services Acquisition changed its name to Jamba, Inc.

In June 2006, Jamba, Inc. announced it had completed a $35 million convertible preferred stock transaction. The funding was led by a $19.55 million investment by Mistral Equity Partners, a private equity fund focused on consumer products and services companies. The remaining $15.45 million investment was made by a company controlled by the Serruya Family, a successful entrepreneurial Canadian-based family who founded the Yogen Früz frozen yogurt and smoothie chain.

In June 2009, Jamba began to shift its focus from smoothies and began selling wraps, sandwiches, and flatbreads.

In July 2009, Jamba Juice was criticized for running an advertising campaign, which was described as a “ripoff” of the work of cartoonist David Rees. The ad campaign looked similar to Rees' "Get Your War On" series. Rees was informed of the Jamba Juice ads by a fan who sent in a letter. Rees stated that “Jamba Juice bit my style, with no credit, and it's kind of disrespectful.”

In May 2016, Jamba Juice announced the move of its corporate headquarters from Emeryville, California to Frisco, Texas, indicating the high costs of living and conducting business in the San Francisco Bay Area. In 2019, Jamba Juice was acquired by Atlanta-based Focus Brands, and the same year the chain changed its name to Jamba to reflect its expanded menu and negative health connotations around the word “juice”.

On June 20, 2020, founder Kirk Perron died from cardiac arrest in Palm Springs, California, at the age of 56. On August 4, 2020, Jamba opened a location in Tokyo, its first in Japan.

In December 2007, it was announced that Jamba would partner with Nestlé to lend its name to a line of healthy, pre-prepared beverages under the Jamba brand. On December 19, 2008, a press release from Nestle USA and Jamba Juice announced the suspension of Jamba pre-prepared products due to "...challenges... with manufacturing on a consistent basis, resulting in inventory and out-of-stock issues."

In 2014, Jamba Juice expanded its Fresh Juice menu, and began making juice blends to order with fresh ingredients such as kale, beets and ginger.