The top women's and men's teams compete at the highest level in the United States and have won the national championships multiple times.

[2] In January 2020, San Francisco CalHeat signed a multi-year partnership with Hummel, the Danish manufacturing company of sportswear brand based in Aarhus.

Back in 1979, Ray Gehrke,[4] considered one of the founding fathers of the sport in California, began an intramural handball program at the Centerville Jr. High School.

[4] In 2011, San Francisco CalHeat became a non-profit organization exempt from Federal income tax under section 501 {c} (3) of the Internal Revenue Code.

One year later, in 2023, the club won both the US Men's National Championship and the Women's Open Division in Spokane, Washington.