B&H, which is a major online e-commerce site and one of the most respected names in the world in the photography industry, does not accept any orders during the 25+ hours of Shabbos.
Their retail store, which is packed with customers six days a week (and has a Willy Wonka-like trolly belt moving orders merchandise between three floors around the store from salesman to warehouse to checkout counter), closes for the entire Yom Tov, including Chol Hamoed. After being closed for over a week, the day after Yom Tov there is a line outside their store, circling around a Manhattan block, of customers chalishing to get in.