Integrating Delaware Secretary of State Business Search with Signzy

Why Delaware is America's business capital

According to the Delaware Division of Corporations Annual Report, the state crossed 2 million total registered businesses in the fall of 2023. Out of these, 298,165 entities were added in the year 2023 alone.

The numbers tell a compelling story:

• 67.6% of Fortune 500 companies are incorporated in Delaware
• 80% of all U.S. IPOs in 2023 were registered in Delaware
• Over 1.9 million active business entities are on file with the Division of Corporations

This massive concentration of businesses makes Delaware's Secretary of State business search one of the most frequently used entity lookup tools in the country — whether you're verifying a potential partner, conducting due diligence on a vendor, or checking name availability before forming your own entity.

This is where the Secretary of State’s business entity search can help you verify the identity and legitimacy of any entity that your business engages with. This verification helps your business steer clear of any potential legal liabilities that may arise out of interactions with bad actors. On top of reduced legal liabilities, identity verification and business verification can help improve the security of your business, which can help improve your relationships with your existing clients.

Secretary of State Business Search

The Secretary of State is a government personnel that handles vehicle registrations, licensing of businesses and vehicles, and other administrative matters related to businesses.

Being an arm of the government, the SOS can be a reliable source of information for verifying the identities of any businesses that you come across. The Delaware SOS platform can help you look up businesses and collect valuable identifying information about them.

However, despite its reliability, the SOS platform is difficult to integrate into your business processes. This is where Signzy’s SOS Business Entity Search can help you streamline the process.

How to perform a Delaware Entity Search (step-by-step)

Follow these steps to search for any business entity registered in Delaware:

Step 1: Visit the Official Search Portal

Go to the Delaware Division of Corporations Entity Search page at: https://icis.corp.delaware.gov/ecorp/entitysearch/namesearch.aspx

Step 2: Choose Your Search Method

You can search by:

• Entity Name — Enter the full or partial business name
• File Number — Enter the 7-digit file number if you have it

💡 Tip: For name searches, using a single keyword yields the broadest results. The search is case-insensitive and ignores spaces and punctuation.

Step 3: Enter Your Search Query

Type the business name or file number into the search field. For example, entering "Acme Holdings" will return all entities with those words in their name.

Step 4: Review the Results

The search results will display a list of matching entities with their:

• Entity name and file number
• Entity type (LLC, Corp, LP, etc.)
• Incorporation/formation date
• Current status

If the search returns "No Records Found," the name may be available for registration — but this is not a guarantee. The Division of Corporations makes the final determination.

Step 5: Click on an Entity for Details

Select any entity from the results list to view detailed information, including the registered agent's name and address.

Step 6: Request Additional Documents (Optional)

For more detailed information such as a Certificate of Good Standing or certified copies of formation documents, you can request them through the Division of Corporations for a fee:

How to automate Delaware business verification with APIs

API-based verification platforms solve the limitations of manual SOS searches by providing:

• Real-time verification against official state databases
• Bulk processing for high-volume verification needs
• Multi-state coverage across all 50 states in a single integration
• Additional data layers including watchlist screening, AML checks, and beneficial ownership

How API verification works

1. Submit an entity name or file number through the API
2. The API queries official databases in real time — including the Division of Corporations
3. Results are returned instantly with entity details, status, and any red flags
4. Additional checks run simultaneously — sanctions screening, PEP checks, and adverse media
5. Results integrate directly into your compliance workflow — flagged cases route to manual review

This process takes seconds compared to the minutes or hours required for manual SOS searches.

Delaware SOS Business Search vs Signzy’s Business Verification API

Signzy’s Business Verification API can help improve the state of identity verification for your business. Let’s take a look at how our API can enhance the security provided by the Delaware SOS business search.

Business verification with Signzy goes beyond just the above information that is provided by the SOS platform. The additional information provided by Signzy includes:

• Entity Verification: Signzy’s API can provide you with the information of the business you’re looking into as well as verify the legitimacy of the entity as well.
• Watchlist Screenings: Our API also scans multiple records to see if the concerned business is on any watchlist.
• Business Website Verification: Signzy’s API finds and brings up the business website that you’re looking for.
• Social Presence: This helps you find the business’s social media presence to better understand its branding and marketing strategies.
• Liens and UCC Filing: This information helps gauge the company’s liabilities and any charges it may have on its assets.
• Bankruptcies: Signzy’s API looks up and fetches any bankruptcy filings that the concerned business may have made in the past. This can help you gauge the company’s financial history.
• Address Classification: Signzy’s API can even fetch information on the USPS address classification to know the type of location the business is operating out of.

On top of this, Signzy’s API gives you access to all of the SOS data and additional information on a single platform through its API. This ensures that the business you are looking for is not just registered with the government for the sake of it, but also has operations and a history.

Conclusion

The Delaware Secretary of State business search is an essential tool for anyone doing business with Delaware-registered entities. Whether you're checking name availability for a new LLC, verifying a potential business partner, or conducting compliance-related due diligence, the free search portal is a solid starting point.

However, for businesses that need scalable, comprehensive verification — especially those subject to KYC, KYB, and AML regulations — manual SOS searches fall short. Signzy's SOS Business Search API bridges this gap by combining official SOS data with watchlist screening, beneficial ownership checks, and eight additional verification layers, all through a single integration point.

Schedule a demo to see how Signzy can streamline your entity verification and compliance workflows.