THX certification is for audio/visual equipment including movie theaters. Not individual companies. The facts you present are wrong.
If NTEK manufactures TV's or speakers, or stereo systems, then a THX certification would be required, IMO.
THX has created a certification process for additional products including home audio, home theater, video, and automotive sound components and products. THX certification extends to home audio receivers, speakers, desktop systems, soundbars, acoustic materials, microphones, and HDMI cables.[5]
Quote from Wikipedia.
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