Kitty Kasas

Kitty Kasas are modular, stackable plastic cat houses designed to snap together into custom configurations and wipe clean easily, unlike fabric or carpeted cat furniture that traps hair, odor, and pests. Founders Nikki Linn and Rusty Niedwick built the system to be hygienic and rearrangeable, letting owners add cubes and connect them into towers or tunnels as their needs change. The hard, washable surfaces were the central selling point.

The pair pitched in Season 10 asking for two hundred thousand dollars for 20 percent. The pitch sparked one of the more heated bidding moments of the season, with Kevin O'Leary and Lori Greiner clashing as both went after the deal. Greiner ultimately prevailed, agreeing to invest two hundred thousand dollars for a 30 percent stake after some back-and-forth on the equity.

Kitty Kasas stood out for the drama between the sharks as much as the product. The modular, easy-to-clean design addressed a genuine frustration for cat owners, and the on-air fight between two heavyweight investors over a pet product made for memorable television and signaled real confidence in the concept.

As often happens, the televised deal with Greiner did not ultimately close after filming. The product, however, found a strong path to market anyway. Kitty Kasas was acquired by pet-products company Jolly Pets in 2019, which brought the modular cat houses into a larger distribution network and onto the shelves of national pet retailers.

Kitty Kasas remains available in 2026 under Jolly Pets. The modular cat houses and accessories are sold through the Jolly Pets website, on Amazon, and at pet retailers including Petco and Pet Supplies Plus. The acquisition gave the brand the retail reach and stability that a small startup would have struggled to build alone.