PEN vs W Comparison

Domiciled in the US, Penumbra designs, manufactures, and markets an array of thrombectomy and embolization devices and equipment to mechanically remove blood clots. The firm sells mainly to hospitals and physicians. These minimally invasive devices are primarily used in the acute care setting for patients with stroke, pulmonary embolism, deep vein thrombosis, cranial aneurysms, and other vascular diseases.

Wayfair engages in e-commerce in the United States (88% of 2025 sales), Canada, the United Kingdom, and Ireland. It's also embarked on expansion into the brick-and-mortar landscape, with 13 stores (excluding outlets) between the AllModern, Birch Lane, Joss & Main, and Wayfair banners. At the end of 2025, the firm offered more than 40 million products from more than 20,000 suppliers under the brands Wayfair, Joss & Main, AllModern, Birch Lane, and Perigold. Its offerings include furniture, everyday and seasonal decor, decorative accents, housewares, as well as advertising and logistics services. Wayfair was founded in 2002 and began trading publicly in 2014.