I've done some due diligence.
Their website does ~300k visitors a month. Source: https://www.similarweb.com/website/qalo.com
They are in 3,000 retail locations. Source: https://qalo.com/pages/store-locator
Their main Amazon product has nearly 3k reviews. Source: https://www.amazon.com/QALO-Mens-Classic-Silicone-Slate/dp/B017TJDFR4/
Inc. Reported Revenue for 2018: $29.4M. Source: https://www.inc.com/profile/qalo - (thanks to /u/shah_s for this)