Search your Illinois LLC name.

Yes, checking availability on the Illinois business-name database is free, and you should always do it before you commit to branding or file. A name that clears the Illinois register can still collide with a federal trademark, so checking both saves you a costly rebrand later. We check the Illinois record for you and flag trademark risk before you file, so the name you like is one you can actually keep.

Illinois requires an LLC name to include a designator that signals the entity type, usually "LLC," "L.L.C.," or "Limited Liability Company," and some states also allow "Limited Company" or short forms. The exact accepted forms are set by Illinois statute, so you have to pick one from the approved list. We confirm your chosen suffix is valid in Illinois as part of the name check, which prevents a rejected filing over a formatting technicality.

Illinois rejects a name that is not distinguishable on the record from an existing entity, and that bar is higher than most people expect. Adding "the," changing punctuation, swapping "and" for an ampersand, or making a word plural usually does not count, so a near-match to an active company will bounce. We test your name against the Illinois distinguishability standard, not just an exact-match lookup, so you find out it is too close before the state does.

Like every state, Illinois restricts words that imply a regulated activity or a government tie, such as "bank," "insurance," "trust," "university," or terms that suggest a state agency. Using one typically requires licensing proof or extra approval, and a few words are barred outright. We screen your name against the Illinois restricted list up front, so you are not caught off guard by a hold or a document request after you have already filed.

Yes. If you have the right name but are not ready to form, Illinois lets you reserve it for a set period so no one else claims it while you prepare. Reservation is a separate short filing, and the hold length and whether it renews vary by state. It is worth doing when branding or funding is in motion; we can file the reservation and then roll it straight into formation when you are ready.

If your first choice is taken in Illinois, you have a few options: adjust it enough to be distinguishable, keep a different legal name and operate under a DBA, or, if the existing entity is inactive, check whether the name will free up. What you should not do is file something too close and hope it clears. We help you land on a name that both passes the Illinois check and does not walk into someone else's trademark.

Usually yes. State name databases are separate, so a name in use elsewhere generally does not block you in Illinois, and the reverse is true too. The catch is trademark: a company operating nationally can hold rights that reach into Illinois no matter where it formed, and registering in Illinois does not give you nationwide rights. If the brand matters, pair the name check with a trademark search and, later, registration.

Your Illinois LLC has one legal name, the one on the Certificate of Formation, and a DBA, also called an assumed or trade name, lets that same LLC operate under a different public-facing name without forming a new entity. Plenty of owners keep a plain legal name and brand under one or more DBAs. A DBA does not change ownership or liability; it is a registered alias, and we can file it alongside or after formation.

No. Illinois does not require your LLC name to describe what the business does, so you are free to choose something abstract or brandable. The real constraints are the ones above: it must be distinguishable, carry a valid designator, and steer clear of restricted words. Picking a broad name rather than a narrowly descriptive one also gives you room to expand later without a rename or a new DBA.