Most people do a Google search, check a few reviews, maybe look at the company’s website — and then sign. That’s not due diligence. A polished website costs $500 and takes a weekend to build. What it doesn’t tell you is whether the business is legally registered, who actually owns it, whether it’s been dissolved, or whether the name you’re dealing with is even the entity’s real legal name. State business directories answer all of those questions, and they’re free. Here’s how to use them effectively.

Understand What State Business Directories Actually Contain

Every U.S. state requires most business entities — LLCs, corporations, limited partnerships, nonprofits — to register with a state agency, typically the Secretary of State or a Corporations Division. When they do, a public record is created. That record is the foundation of any serious business due diligence.

A standard state business record will tell you:

• The entity’s legal name (which may differ from the trade name on its website or storefront)
• Entity type (LLC, C-Corp, S-Corp, nonprofit, etc.)
• Date of formation or registration
• Current status: active, dissolved, revoked, or administratively terminated
• The registered agent and their address — the person legally authorized to receive service of process
• Names of officers, directors, or members, depending on the state and entity type
• Annual report filing history

What it won’t tell you: financial performance, customer complaints, or whether the principals are trustworthy people. For that, you layer in other sources. But the registry is always step one.

Step 1: Nail Down the Company’s Exact Legal Name

Before you run a search, you need to search for the right thing. The name on a business card or website is often a DBA (doing business as) or a trade name, not the registered legal name. Ask the company directly: “What is the full legal name of the entity I’d be contracting with?” A legitimate business will answer that immediately. If there’s hesitation, that’s informative.

You can also search by owner name, registered agent name, or address if you only have partial information. Most state search tools accommodate this.

Step 2: Go Directly to the State’s Official Registry

Skip third-party aggregators for this step. Go to the official state source. For Arizona, that’s the Arizona Corporation Commission’s entity search, which covers corporations and LLCs registered in the state. It’s free, requires no login, and returns results in seconds.

Enter the legal name you confirmed in Step 1. If you get multiple results — which is common with generic business names — filter by entity type or formation date to narrow it down. The ACC search also lets you search by entity ID number if the company has provided one.

Step 3: Read the Status Field First

The single most important field in any business directory lookup is status. Active means the entity is in good standing and legally authorized to conduct business in that state. Anything else — dissolved, revoked, inactive, administratively terminated — is a red flag that demands an explanation before you proceed.

In Arizona, a company can be administratively dissolved by the ACC for failing to file an annual report. This happens more often than you’d expect, and many businesses continue operating without realizing (or caring) that their legal standing has lapsed. If you sign a contract with a dissolved entity, enforcing it can become complicated. Some courts have upheld contracts with dissolved entities; others haven’t. Don’t put yourself in that position.

If the status shows anything other than active, ask the company to explain and provide documentation of any reinstatement before you move forward.

Step 4: Check the Filing History

Once you’ve confirmed active status, pull the filing history. This is a chronological log of everything the company has filed with the state: formation documents, amendments, annual reports, registered agent changes, and dissolution filings if applicable.

What you’re looking for here:

• Gaps in annual reports. A company that missed two or three consecutive years and then filed a reinstatement may have been effectively defunct during that period.
• Recent name changes. A company that changed its name six months ago might be distancing itself from a previous identity. That’s worth investigating further.
• Registered agent changes. Frequent changes can indicate instability, though one change is unremarkable.
• Amendments to the articles of organization or incorporation. These can signal changes in ownership structure or business purpose.

Step 5: Cross-Reference With a Business Profile Aggregator

Official state registries are authoritative but narrow. They won’t tell you if the company is also registered in other states, what its principal business address history looks like, or how it appears in aggregated commercial databases. For a broader picture of Arizona-registered companies — including contact information, industry classification, and related entities — a resource like this Arizona company database can surface details that the raw state filing doesn’t include.

Use aggregators as supplemental context, not as a substitute for checking the official registry. They’re useful for spotting inconsistencies: if the address in a commercial database doesn’t match the registered address on file with the ACC, find out why.

Step 6: Verify the Registered Agent

The registered agent is the person or entity legally designated to receive official correspondence and legal notices on behalf of the company. Every registered business must maintain a current registered agent. If the registered agent address is a residential address, that’s not inherently suspicious — many small business owners serve as their own registered agent. But if the agent is listed as a registered agent service company, you can verify that service is still active by checking whether the agent appears in the state’s own registered agent records.

A missing or outdated registered agent is another signal that the company’s administrative house isn’t in order.

Step 7: Layer in Additional Sources

State registry verification answers the legal-standing question. For a complete picture, combine it with:

• Better Business Bureau (bbb.org): complaint history and accreditation status
• PACER (pacer.uscourts.gov): federal court records, including bankruptcy filings
• Your state’s court records system: civil judgments, liens
• LinkedIn: verify that the people you’re dealing with actually work where they say they do

For contracts above a certain threshold — say, anything over $10,000 — it’s worth running a UCC lien search through the Secretary of State’s office as well. Existing liens on a company’s assets can affect your position if the company defaults.

Common Mistakes to Avoid

The most common error is searching for the trade name instead of the legal entity name and getting no results, then assuming the company isn’t registered — when it’s actually registered under a different name. A close second is treating “active” status as a full green light without checking the filing history or cross-referencing other sources. People also frequently skip this process entirely for smaller transactions, which is precisely where fraud is most common because the amounts fall below the threshold where victims pursue legal remedies. Finally, don’t rely on a printout the company provides themselves — always pull the record directly from the state database. Verification only works if you control the source.