INGN vs TBB Comparison

Inogen Inc is a medical technology company that develops and manufactures portable oxygen concentrators used to deliver oxygen therapy to patients with chronic respiratory conditions. Its key product, the Inogen One system, is a lightweight alternative to traditional, stationary oxygen concentrator systems and oxygen tanks. The firm sells its products to home medical equipment providers and also rents products directly to patients. Internationally, It sells its products through distributors large gas companies, and home oxygen providers. It generates the majority of its revenue in the United States.

The wireless business contributes nearly 70% of AT&T's revenue. The company is the third-largest US wireless carrier, connecting 74 million postpaid and 17 million prepaid phone customers. Fixed-line enterprise services, which account for about 14% of revenue, include internet access, private networking, security, voice, and wholesale network capacity. Residential fixed-line services, about 12% of revenue, primarily consist of broadband internet access, serving 15 million customers. AT&T also has a sizable presence in Mexico, with 24 million customers, but this business only accounts for 3% of revenue. The company recently sold its 70% equity stake in satellite television provider DirecTV to its partner, private equity firm TPG.