Several companies provide nonspherical micron-sized particles for various applications. Some of these companies include Bangs Laboratories, Cospheric LLC, PolyMicrospheres, Microparticles GmbH, Spherotech Inc., and Cosmo Bio Co., Ltd. These companies offer a range of polymer, silica, and glass microspheres with different shapes, sizes, and surface functionalities. It is advisable to check each company's catalog or website to confirm the availability of the specific particle shape and size required for a particular application. Custom particle manufacturing options may also be available from these companies.