Applied Optoelectronics Inc. (AAOI) competes against several prominent global developers and manufacturers of high-speed optical transceivers, laser components, and networking equipment. Its primary market rivals include major tech companies and optical specialists such as Lumentum Holdings, Finisar (acquired by II-VI/Coherent), Acacia Communications (Cisco), Sumitomo Electric Industries, and Innolight, all of which vie for supply contracts with major cloud service providers and telecommunications network operators.