The Brands Queen Elizabeth, Prince Charles, and Prince Philip Swear By

The royals are free to shop wherever they choose, but they tend to keep it in the family—the royal warrant family, that is.

The precious few brands with royal warrants are permitted display the Royal Arms in their marketing materials. The royals usually refuse to promote commercial goods, but the warrants are a rare and prominent exception. They're an obvious boon to any branding efforts, but getting your hands on one is no easy task.

First, a company must provide goods or services to the royal family (or more specifically, to Queen Elizabeth, Prince Philip, and Prince Charles, the three royals able to award warrants) for five years. Then, as Nigel Fulton, owner of royal warrantee Fulton Umbrellas, told Town & Country earlier this year, "you have to wait until you’re invited to apply, so it’s not automatic at all." To apply, companies need to submit a laundry list of disclosures, which ensure that the business meets various standards. "The finances, your supply base, where all of the components come from, your policies on human resources, your supply policies, your health and safety policies, your environmental policies," Fulton recalled.

Only after that thorough vetting process can a brand be awarded a royal warrant—and even then, the warrants have to be renewed every five years. Still, a select 14 companies have managed to acquire not just one, but all three, granted by the Queen, Prince Philip, and Prince Charles. A few of them, unfortunately, are hard to patronize from abroad (even if Blossom & Browne's Sycamore really does provide the best dry-cleaning around). But here, we've gathered a full 10 of the royal family's favorite brands that you can try out yourself.