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Connecticut Secretary of State Business Search and Registering Your LLC Name

Your Connecticut business entity needs the perfect name, and we’re here to help. In this section we’ll guide you through searching the CT Secretary of State business register, tell you about the rules for naming your business, describe Assumed/Fictitious/DBA names and get you started with registering your LLC.

Connecticut Business Entity Search on the SOS Website

You need to check whether there’s already another Connecticut LLC registered with your desired business name. That means searching the Connecticut Secretary of State website using their business search tool. You can easily look up CT LLCs and corporations by name and other details. Using the tool is easy:

If the business name is already used, that means it’s not available and you won’t be able to register it. Try searching for a different business name instead.

Connecticut Secretary of State business name search tool.

Connecticut SOS Rules on Your LLC Business Name

Once you’ve decided on a name for your LLC and checked business name availability, you’ll need to meet Connecticut Secretary of State naming rules. These do vary from state to state — we’ve got general naming rules below, as well as naming rules specific to LLC businesses formed in CT.

General Business Name Availability Rules

These rules typically apply to all LLCs, no matter what state they are formed in. You will need to pay attention to these rules, as they will influence the name you choose for your Connecticut LLC.

Your LLC Business Name Must Be Unique

The business name you have chosen cannot be used by any other LLC or corporation in the state of Connecticut. This is why you should check business name availability on the CT SOS website.

Your LLC Business Name Must Not Be Confusable With Another Business Name

It’s not enough for your CT LLC name to be unique. It also cannot be similar to the name of a corporation or LLC in Connecticut. For example, you cannot use the following factors to say your name is different from the name of another business:

  • Suffixes, such as Corporation, Company, Incorporated, Incorporation, Limited, Corp., Co., Inc., Ltd., LLC, etc.

  • Definite articles like “A,” “And,” “An,” “&,” “The,” etc.

  • The singular, plural or possessive forms of a word

  • Abbreviations, punctuation, symbols, fonts, typefaces, etc.

Your LLC Business Name Must Contain Certain Words

All LLCs must have the words “Limited Liability Company,” “L.L.C.” or “LLC” in their name. These words should normally come at the end of the name.

Your LLC Business Name May Have Other General Restrictions

Most states will not allow you to form LLCs with names that:

  • Are very similar to the name of a federal or CT agency or organization (e.g., FBI, FDA, Connecticut Department of Revenue Services, Connecticut Police, Treasury, etc.)

  • Suggest affiliation with a federal or state agency or organization

  • Use the term “Olympic” or any terms that are trademarks of the Olympic organization

  • Imply a purpose that it would be illegal for your business to carry out

Connecticut LLC Fictitious Names

You might choose to do business under a different name from your legal LLC name. In Connecticut, doing business under a different name is known as an “Assumed,” “Fictitious” or “Doing Business As” (DBA) name. You might choose to use a different name from your CT formal LLC name for a variety of reasons.

For example, your LLC might be called Connecticut Travel Holding Company LLC, and you have a chain called “Bridgeport Adventures.” You should file an Assumed Name to let the Connecticut Secretary of State know. In Connecticut, you do that by sending a letter to the Secretary of State and Department of Revenue Services, or you can have Incfile do it on your behalf through our Assumed Business Name service.

Incfile’s Assumed Business Name service

Register Your Connecticut LLC Company Name

Once you’ve searched for your Connecticut business name, checked availability, followed the naming rules and decided whether you need a fictitious name, you can register your CT LLC name. There are a couple of ways to do this.

  1. If you don’t want to form your Connecticut LLC right now, you can reserve the business name with the Connecticut Secretary of State. You will need to complete an “Application for reservation of name” form and file it with the CT SOS. You do not need to reserve a name if you are forming your business right away.
    Connecticut SOS LLC name reservation form.

  2. If you’re ready to start your Connecticut LLC, you can formally file your Certificate of Organization with the Connecticut SOS, or let Incfile take care of it for you.

FAQs on Naming Your Connecticut LLC

You might find the following answers useful.

How Do I Search for My Connecticut LLC Business Name?

Just go to the business name search tool and enter your proposed business name. You can search the register of the Connecticut Secretary of State, which will tell you if there are any CT corporations or LLCs with that name.

Are There Any Rules on Naming My Connecticut LLC?

Yes. Most LLCs will be bound by general rules (applicable to all LLCs) and specific rules (applicable in the state of Connecticut). We’ve detailed these rules above.

Can I Do Business Under a Different Name Than My LLC Name in Connecticut?

Yes. Known as “Assumed Names,” “Fictitious Names,” “Doing Business As Names” or “Trade Names,” you can choose to conduct business under a different name. Details are above.

Can I Reserve a Name for My Connecticut LLC?

Yes. The Connecticut Secretary of State allows you to reserve a name if you don’t want to start your business immediately. Details are above. If you are ready to start your business now, you do not need to reserve a name.

Useful Resources for Naming Your Connecticut LLC

You might find these resources helpful.

Trademarks and Service Marks

You must be careful that your Connecticut LLC name does not infringe on the trademark or service mark of another business. The easiest way to make sure your proposed business name does not infringe is to carry out a trademark search through Incfile. If it doesn’t infringe, you can even register it as a trademark yourself.

Incfile Trademark Search and Registration service

Find the Perfect Name for Your Connecticut Company

The perfect business name can be elusive. We have a complete guide to choosing the right business name, but basically, you'll want to choose a name that will:

  • Appeal to your customers

  • Be memorable enough to stand out

  • Best represent your product or services

  • Not be used by another business

Incfile guide to choosing a business name

Only $49 + State Fee To Launch Your Business

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What are the fees and requirements to form a business in Connecticut?

Filing Time and Price

The state charges this amount to file a new business entity. This fee goes directly to the Secretary of State.

State Fee State Filing Time Expedited Filing Time
$120 12 Business Days 4 Business Days

Compliance Requirements

This report is mandatory and must be filed within the specified time frame in order for the entity to remain in good standing with the state. Failure to file this report can lead to the company being revoked or administratively dissolved.

Annual Report

Frequency: Annually

Due Date:April 1st

Filing Fee:$20

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