1. The Apothecary sells potions and potion ingredients.
2. The Cauldron Shop sells all different varieties and sizes of cauldrons, including copper, brass, pewter, silver, self-stirring, collapsible, and solid gold, according to a sign outside the shop in Philosopher's Stone. Hogwarts requires its students to have a size 2 pewter cauldron. The Cauldron Shop is very near to the entrance from The Leaky Cauldron.
3. The Daily Prophet Office is the office of the wizarding newspaper, The Daily Prophet, as witnessed by the fact that "Letters to the editor should be sent by owl to The Daily Prophet, Diagon Alley, London
4. Eeylops Owl Emporium sells owls and supplies such as owl treats.
5. Florean Fortescue's Ice Cream Parlour, under the management of Florean Fortescue (founder and shopkeeper), sold ice cream,
6. Flourish & Blotts sells a great variety of magic-related books, including textbooks for Hogwarts courses and other books of general magical interest.
7. Gringotts Wizarding Bank- Gringotts is the only known bank of the wizarding world and it is operated primarily by goblins.
8. The Leaky Cauldron is a pub and inn for wizards, located on the Muggle street of Charing Cross Road in London, offering food, drinks and rooms to rent.
9. Madam Malkin's is a clothing shop next to the bookstore, Flourish & Blotts. It sells robes and other clothing, including the standard Hogwarts-required plain black work robes, and dress robes.
10. The Magical Menagerie is a magical creature shop that, besides selling magical creatures, also offers advice on animal care and health
11. Ollivander's is a fine wands shop
12. Quality Quidditch Supplies sells broomsticks and Quidditch-related items.
13. Twilfitt and Tatting's is a wizarding clothing shop located in Diagon Alley
14. Weasleys' Wizard Wheezes is a popular joke shop that started as a small school business created by Fred and George Weasley in the fourth book.