Denon, while they are headquartered in Japan, are owned by American company. Wikipedia: Denon
In 2002, Denon merged with Marantz to form D&M Holdings. On March 1, 2017, Sound United LLC completed the acquisition of D+M Holdings.
Wikipedia: DEI Holdings (Sound United)
Wikipedia: Masimo
Masimo Corporation is an American health technology and consumer electronics company based in Irvine, California. The company manufactures patient monitoring devices and technologies, including non-invasive sensors using optical technology, patient management, and telehealth platforms. In 2022, the company expanded into home audio by acquiring Sound United, and began to manufacture health-oriented wearable devices.
They also own Bowers & Wilkins, which is a British speaker manufacturer. B&W has some wireless speakers, if you don't mind the ownership and the price tag.
Suunto is owned by Chinese company Liesheng. https://en.wikipedia.org/wiki/Suunto