How to Find Company Names by the EIN

How to Find Company Names by the EIN

Need to find a business name based on an EIN? Learn how to do a lookup using the Employer Identification Number (EIN) in this step by step guide.

Looking for company details by their EIN (Employer Identification Number)? This guide will provide you with the steps you need to take to conduct an online lookup and get the required corporate information associated with a particular EIN.

Get the EIN you want to look up.

Once you have determined the EIN you want to look up, gather any documents or information that contains the EIN for accuracy. It is important to be detailed when looking up an EIN since incorrect numbers will not produce accurate results. Once you have located it, make sure to double check that all of the digits are accurate and that there are no typos.

After locating the EIN, head to the Internal Revenue Service (IRS) website to use their free EIN Lookup Tool. Select ‘Employer Identification Number (EIN),’ then enter the nine-digit number in the appropriate box. The IRS will search for a match in its database and provide any relevant information on that company listed such as their address, name, and legal status. Sometimes an exact match won't be found but you may be able to find a similar company using this method.

Try an IRS search first.

An Employer Identification Number search with the IRS may be the easiest place to get started. The government agency has a vast amount of information related to business and individuals, including tax returns. Enter the EIN into their search field and review any results that appear. This can provide you with key data such as a business name, address, date of establishment, filing status, and more.

The IRS search engine is free and easy to use. However, it does not provide information about all businesses with an EIN due to the fact that some companies are private, non-profit entities or may have gone defunct. Therefore, other strategies may be necessary to locate company names associated with an EIN. As the name suggests, searching state Secretary of State Databases provides necessary information about corporations currently registered within a particular state. It is important to know that many states require you to pay a small fee for access to internal records.

Use general internet search methods.

Another option for an EIN lookup is to use general Internet search methods. You can use Google or other search engines to look for websites that allow you to search their databases by EIN. These databases may become more useful the more businesses you research. Once you enter the EIN in the website, it will hopefully return with a business name and any other information they have on record.

Additionally, websites like LinkedIn can be a useful tool when looking up business names. When you search with an EIN, you may uncover information such as current owners of companies and their profiles. You may also find out the contact information or website of the company which can in turn be used to learn even more about it. These methods are helpful if you're unsure where to begin and need additional resources to identify businesses.

Look up associations that list business with similar activities or industry codes associated to their EINs.

With a bit of detective work, researching businesses that have similar activities as the one you are looking for can help with your search. Using industry codes such as those in the North American Industry Classification System (NAICS) and Standard Industrial Classification (SIC) systems can help narrow down what type of business you may be searching for. Associations or directories like Dun & Bradstreet or Hoovers provide helpful lists and profiles to look up businesses registered under particular SIC/NAICS codes.

Additionally, when searching for a company with a particular EIN you can use search engines such as Google or Yahoo and include keywords related to the company’s industry with its EIN to see if it comes up in the search. This can be an effective way to track down a business’ name if you know its EIN. Alternatively, government websites such as or may have databases where you can input an company’s EIN and view documents or filings associated with businesses and their activities.

How to Locate a Business with an Employer Identification Number (EIN).

The Internal Revenue Service (IRS) assigns an Employer Identification Number (EIN) to all U.S. businesses who have applied for the tax ID number, and it is easy to lookup this number online. To start, go to the IRS website, select “Employer Identification” from the search box dropdown menu and enter your query term as “Employer Identification Number” plus the EIN you are searching for (e.g., “Employer Identification Number 123456789”). The EIN listing should include details on the business such as name, address and other contact information.

Before you lookup a company name, it’s best to have the EIN and some background information on the business. You can search for an unincorporated business or an LLC that is not registered with the state by using the IRS’ Business Name Search tool. Enter specific details about the business into the search box, such as city, state, type of business and more. Finally, websites like Bizapedia also allow searches based on EIN and other criterias to help you access further information about organizations.

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