Rainy Day Anime provides merchandise related to Japanese animation and pop culture in Southern Colorado, and has been a proud supporter of JASSC since 2017. They have participated in JASSC by setting up a booth at the Japanese Festival and Bazaar and setting up a manga lounge on Children's Day.

Menya serves Japanese-style cuisine, including ramen, poke & tapas in Denver & Colorado Springs, and has been a corporate member since 2022. They have supported JASSC through in-kind donations for years before that. Every year, Menya has provided a generous donation of rice for Mochitsuki (Rice Pounding Festival) and has also provided food at the Japanese Festival and Bazaar. In addition, general manager Kaori Walbridge has volunteered at the calligraphy table on Children's Day.

Pikes Peak Library District (PPLD) offers language-learning tools and world travel guides to cultural collections, research materials, and no-cost programs for all ages. They have been a corporate member since 2023 and are committed to ensuring that the community feels welcomed, supported, and empowered through accessible resources and inclusive library services.

Traditional Aikido of Colorado Springs is an adult-only dojo that teaches Iwama-Ryu Aikido, a lineage deeply rooted in traditional Japanese martial arts. They have been a proud supporter since 2018 and continue to demonstrate a meaningful connection to Japanese martial culture for practitioners in the Colorado Springs community through performances at the bazaar.