Karishma Tanna collaborated with Supertails in August 2022 for their SWAG SALE 2022 campaign, where she and her pet aimed to challenge negative perceptions about animal behavior. This campaign was part of a yearly sale initiative by the digital pet-care platform.

Karishma Tanna has been onboarded by Jovees Herbal as the face of the brand, promoting it across digital and outdoor campaigns since April 2022.

Karishma Tanna launched the Skechers Performance Apparel Range at India Luxury Style Week in 2015, showcasing the brand's new line.

Karishma Tanna partnered with Adda52 in February 2024 to promote the Adda52 Online Poker Series, leveraging her broad audience appeal to advocate poker as a mind sport.