Did you know that “business” has exactly one plural form: “businesses”? Even seasoned writers trip over this, usually because of confusion around possessives and compound nouns. I had a friend editing a business proposal who kept second-guessing herself, toggling between the two forms for no reason. As it turns out, “businesses” is the only correct plural of business, full stop.

The One Correct Plural Form

The word “business” is a count noun, so it can be pluralized. When you’re talking about more than one establishment, “businesses” is your only option. Merriam-Webster confirms that words ending in -s take the -es suffix, and “business” follows that rule without exception. So there’s genuinely no debate here.
The confusion usually creeps in through compound forms and possessives, where things get a little murkier. Some people see “businesses” and assume it looks wrong because they’ve encountered the word in those trickier contexts. But for the plain plural of business, it’s simple: more than one means “businesses,” every time.

Possessives and Compound Nouns

Possessives are where people actually have a reasonable argument. The debate between “business'” and “business’s” has real standing, unlike the plural question. According to the AP Stylebook, a singular noun ending in -s can take either an apostrophe alone or an apostrophe-s to show ownership. I’d personally stick with “business’s” in formal writing, because it reads as clearly singular and leaves no room for misreading.
Compound nouns are a separate headache. “Businesses’ owners” versus “business owners” means two different things: the first signals ownership by multiple businesses, while the second just describes owners in a general sense. From what I’ve seen, “business owners” is almost always cleaner and less likely to confuse a reader. I’ve watched people write “business’ owners” when they meant neither possessive form at all, which just muddies everything further.

Common Misspellings to Avoid

I’ve spotted “businesss” and “bussinesses” in documents that were otherwise pretty polished. These slip through when someone’s typing fast and not really looking. The fix is straightforward: remember there’s only one “s” in “business” before you add the plural ending.
Most writing software will catch “businesss” or “bussinesses” immediately, but I wouldn’t rely on that entirely. Spell-checkers miss context-specific errors more often than people expect. A quick proofread before you send anything out takes thirty seconds and saves genuine embarrassment.
Keeping a short cheat sheet of the words that keep tripping you up is something I started doing years ago. It sounds fussy, but when you’re writing fast under deadline, having that list nearby is genuinely useful. Cheap in effort, too.

What to Remember

The plural of business is “businesses,” and that part has no gray area. The possessive forms give you a little flexibility, but “business’s” is the safer bet in formal contexts. And misspellings, while easy to make, are just as easy to catch with a second pass. Getting these details right matters more than most people think, especially when the writing represents a company or a client.

FAQs

What is the plural of business?

The plural of business is “businesses.” It’s the only correct form when referring to more than one business entity.

Is it “business'” or “business’s” for possessive?

Both are acceptable, but “business‘s” is generally preferred in formal writing for clarity.

Can “business” ever be uncountable?

Yes, when referring to commerce broadly, as in “she’s in the business of selling jewelry,” it functions as an uncountable noun.