Company Register: How to Search and Verify a Business

Learn what a company register shows, how to search official UK and US records, verify a business, and understand the limits of a registration entry.
Magnifying glass, business filings and laptop displaying an abstract company register

A company register is an official record of incorporated businesses and other entities covered by a jurisdiction’s registration law. It helps you answer practical questions: Does a company legally exist? What is its registered number and status? Where does it receive official notices? Who are its recorded officers? Which filings are available? The answers can help an entrepreneur complete a formation, a customer check a supplier, or a researcher follow changes over time. A register is useful evidence, but it is not a government guarantee that a company is solvent, trustworthy, licensed for every activity, or telling the truth in every filing.

This guide explains how to read a company register and where its limits lie. Because rules differ by country and, in the United States, by state, it uses the UK’s Companies House register and US state business registries as examples rather than presenting one universal checklist. Check your own registrar’s current instructions before paying fees or filing documents. The information below is educational, not legal or tax advice for a particular business.

What a company register records—and what it does not

The register is the record maintained by the official registrar for entities that the law requires or permits it to record. An entry usually has a legal name, a distinctive registration number, an entity type, a formation or incorporation date, an official address, and a current status. Depending on the jurisdiction and entity, the public may also see officers, ownership or control disclosures, filing history, accounts, charges, and past names. The exact fields and access rules are not universal.

In the UK, Companies House offers a free search of its public company data. Its guidance lists company type, status, registered office, accounts and confirmation-statement dates, documents, officers, charges, and insolvency information among the available records. The record is a useful starting point, not the end of verification. A newly filed change may take time to appear, a document may describe an earlier reporting period, and some data is protected from public disclosure.

In the US, there is no single federal register that incorporates every ordinary business. The Small Business Administration’s registration guide explains that companies generally register with the relevant state agency, often a secretary of state, and may have obligations in other states where they conduct business. An IRS employer identification number is a tax identifier, not proof that the state accepted incorporation. Likewise, a website domain, business license, trade name, trademark, or social-media profile is not the same thing as an entry for a legal entity.

One frequent source of confusion is the distinction between a business and a company. A person trading in their own name may not have formed a separate company, yet may still need tax registrations or local licenses. A US LLC is a state-created entity, while a UK private limited company follows a different legal framework. The sole-trader explanation and our LLC overview introduce those structures; neither substitutes for the rules in the place where you operate.

Why the legal identity matters

A registered name is the precise legal identity you can put on a contract, invoice, or due-diligence file. Similar trading names may belong to different legal entities. A company can market itself under a brand name that differs from the name on the register. Searching the brand alone may produce no result even when the underlying company is real. Conversely, finding a familiar-sounding entry is not enough to establish that the person contacting you is authorized to act for it.

The registration number is often more reliable than the name when matching records. Names can change; an identifier ordinarily continues to refer to the same legal entity. If a supplier gives you a registration number, search the official register and compare the legal name, current status, address, and filing history with the contract and payment instructions. If those details conflict, pause and ask for an explanation. Do not send funds to a newly supplied bank account solely because an email signature contains a real company number.

Entity status also needs careful reading. An active entry means the registrar currently records the entity as active; it does not certify profitability or the ability to pay debts. A dissolved entity may still have a searchable historical record. A company in liquidation or another insolvency procedure presents a different risk from an ordinarily active business. Review the status date and related documents rather than treating a colored badge or search snippet as a full credit assessment.

Registration is a step toward a separate legal entity in structures that create one. It is not a magic shield. Liability protection can depend on the structure, applicable law, guarantees, conduct, and proper separation of personal and business affairs. A director can still have legal duties and may face personal consequences in specific circumstances. Do not promise yourself, investors, or readers that a registration entry alone protects all personal assets.

How to find the right official register

Begin with the jurisdiction of formation, not the location of an advertisement or a sales representative. Look for the government registrar’s own website, confirm the domain, and use its search service. In the UK, the official Find and update company information service accepts company names and numbers. In the US, consult the state agency linked from the SBA’s state-registration guidance or the state’s official government site. Be wary of paid intermediaries that resemble a public register but add fees, display outdated scraped data, or imply official status they do not have.

If the first search fails, try an exact registration number; remove punctuation from a name; search former names; or check whether the business operates under a trade name. Also consider that a foreign company may register in more than one jurisdiction. A US entity formed in one state may have a foreign qualification in another. The two records may describe the same entity from different administrative perspectives, and neither alone establishes where it has all required permits.

Record the URL and the date you searched. A registry is a changing database, so a screenshot without a date can become misleading. For an important transaction, save the filing or official extract that supports your conclusion, not just a search-result card. If the official site is unavailable, do not silently replace it with a directory and call the result verified. Mark the check pending and return to the registrar when it is accessible.

Suppose an invoice says “Northfield Learning Ltd” and lists a registration number. Searching that number could reveal “Northfield Learning Limited,” a changed registered office, and a prior name. That may be a legitimate match, but you would still compare the invoice’s payment details, website, and authorized contact with independent channels. This example illustrates a process, not a claim about any actual company.

Reading the main fields on an entry

Legal name, number, type, and status

Start with these four fields. The legal name and registration number identify the entity; the type tells you which statutory framework is likely relevant; and the status tells you how the registrar currently classifies it. Read the dates attached to a status. Do not equate a long-standing entry with strong financial health, and do not assume a recent formation is improper. A newly formed entity may be perfectly legitimate but have limited operating history for you to evaluate.

Watch for close names. A plural, abbreviation, or extra word can identify a different company, and scammers sometimes exploit that similarity. When the stakes are high, match the number on the exact contract, company letterhead, invoice, and official entry. If a document uses only a brand name, ask for the underlying legal entity and its registration number.

Registered office and contact addresses

The registered office is an address for formal correspondence. It need not be a shop, factory, or customer-service center. Many firms use an accountant’s office or an address service where permitted. An address shared by many companies is not proof of fraud. It does, however, mean you should not infer the company’s physical operations from that address alone. For a supplier visit or service complaint, confirm the operational address separately.

Companies House says UK limited companies must maintain a registered office meeting current rules, while the SBA explains the role of a registered agent for many US entities. Those are related but not identical concepts. An agent’s address receives certain official notices; it may not be the business’s principal location. Review the local terminology before copying one jurisdiction’s filing instructions into another.

Officers, control, and ownership

Officer listings can identify current or former directors and filing dates. A director is not necessarily the owner, and a shareholder is not necessarily a day-to-day manager. Some jurisdictions publish beneficial-ownership or significant-control details; others restrict access to protect personal information. In the UK, the people-with-significant-control framework provides specified control disclosures. A public register may still be incomplete for the question you care about, such as who approved a particular contract.

When evaluating a transaction, compare the name of the person signing with what the company has authorized. An officer listing can support the inquiry, but it does not by itself prove that a particular email address or telephone caller belongs to that officer. A separate call to a previously verified number is sensible when bank instructions change or the transaction is unusually large.

Accounts, confirmation statements, and filing history

Financial filings can give context, but they are not a real-time bank balance. The accounts may relate to a year that ended months earlier and may be abbreviated under the rules for the entity. A filing date tells you when a document was accepted, not necessarily when every underlying figure arose. The confirmation statement is a snapshot of certain register information, not an audit of all business operations.

Read a sequence of filings instead of isolating one number. Has the company filed consistently? Were there repeated late submissions, changes of officers, a sudden change of name, or registered charges? None of these facts alone proves misconduct, but they can guide follow-up questions. For financing decisions, combine the register with current financial information, references, contractual protections, and professional advice. Our due-diligence primer explains the wider process.

Registration, tax, licensing, and trademark are different tasks

Formation establishes or records an entity under a particular legal framework. Tax registration identifies it for tax administration. A business license authorizes a regulated activity or local operation. A trademark can protect a brand for specified goods or services. These steps can interact, but completing one does not automatically complete the others. A company can appear on a register yet lack the permit required for a particular service; it can own a trademark while its registration is inactive; or it can have a tax ID without being incorporated.

In the US, an entrepreneur might first choose a structure and file formation documents with a state, then obtain an EIN where needed, register for state or local taxes, and apply for industry permits. The order and requirements vary. Some sole proprietors need no state entity filing but still have licensing or tax responsibilities. In the UK, incorporation with Companies House is distinct from HMRC registration and sector-specific permissions. Use the government checklists for the actual jurisdiction rather than a generic “eight universal steps” infographic.

Registering a company name also does not automatically give exclusive trademark rights or a matching website domain. Search the relevant trademark registry and domain availability separately if those matter to the venture. A name accepted by one registrar may be restricted in another market. Treat the legal-name search as one part of brand clearance, not as a substitute for it.

How to prepare to register a business

First define where you will form the entity and where it will actually operate. Ask whether a separate entity fits your risk, tax, funding, and management needs. Compare a sole-proprietor arrangement, partnership, LLC, corporation, or local equivalent using jurisdiction-specific guidance. Then identify the correct government agency and current forms. Avoid paying an intermediary merely because it appears first in a search result; verify whether you need its service at all.

Second, check naming rules and availability. A preliminary name search is not final approval, and an available name may still conflict with a trademark. Consider whether the legal name will appear publicly on invoices and contracts. Prepare the entity’s registered address or agent information and confirm that the person providing the address has agreed to that role. Do not use another person’s home address casually: some registries publish it.

Third, gather the documents and details required by the official form. That may include directors or managers, ownership information, an authorized filer, share or membership information, and an appropriate business-activity description. A UK limited company and a US LLC will ask different questions. The details should match your underlying decisions; do not guess at directors, ownership, or activities to get past a form validation error. If the structure is complex, a qualified adviser can help before the submission becomes part of the public record.

Fourth, review the filing and fees immediately before submitting. Government charges and electronic procedures can change. Submit through the registrar’s approved channel, retain a copy of the application and receipt, and verify the accepted entry when the agency processes it. An application confirmation is not always the same as acceptance. After approval, note the registration number, official name, filing dates, and next reporting deadlines in a secure records calendar.

Fifth, finish the tasks that registration does not complete: bank setup, tax identification, licenses, internal governance documents, insurance, and accounting controls where appropriate. Separate personal and entity transactions. A company with a perfect public entry can still run into trouble if it ignores taxes, permit requirements, or its own filing deadlines. For planning capital needs after formation, see the business-finance guide.

UK example: searching and maintaining a Companies House record

Imagine that a student team wants to check a UK software supplier before buying an annual subscription. They search the official Companies House service for the legal name on the proposed contract. The result shows a company number, active status, registered office, and incorporation date. They then inspect the filing history, recent accounts date, and current officers. They compare those details with the agreement and the supplier’s independently verified website. If the contract instead names a different entity, the team asks which company will supply the service and hold customer data.

The team should not conclude that the supplier is financially safe just because an active record exists. Accounts may be old or limited in detail. The registered office may be a correspondence address. The team may need a current service agreement, security information, references, and a workable payment method. The register helps identify the counterparty and identify questions; it does not replace commercial judgment.

For someone running a UK company, upkeep continues after incorporation. Companies House guidance for directors identifies annual accounts, confirmation statements, officer changes, registered-office changes, shares, charges, and control information among matters directors must address. Delegating a filing to an accountant does not erase a director’s responsibility. Build a calendar with the registrar’s current dates, verify accepted filings, and keep contact details current so notices are not missed.

UK identity-verification rules are also now part of the picture. Current Companies House guidance explains requirements for directors and people with significant control, including use of a personal code in relevant filings. The timing depends on the person’s role and appointment history. This is precisely the kind of rule that makes an old blog checklist unsafe: read the official page at the time you act, and protect personal codes as sensitive information.

US example: a state entity record and the separate EIN

Consider a designer forming an LLC in a US state. They check the state’s official entity-name search, choose an available legal name, identify a registered agent, and submit the state formation document and fee. After acceptance, the state issues an entity identification number or equivalent. The designer then determines whether an IRS EIN is needed and obtains it through the IRS’s official process. The state entity number and federal EIN serve different purposes and should not be swapped on forms.

If the LLC begins operating regularly in another state, it may need to register there as a foreign entity. “Foreign” in this context can mean formed in another US state, not necessarily another country. The SBA says the need depends on business activities and state rules. A second state record may show a local authorization while the original state remains the place of formation. Someone verifying the LLC should check which record answers the specific question at hand.

Unlike a blanket claim that every sole proprietor must incorporate, the right route depends on the business. A freelance designer may initially operate as a sole proprietor under local law, while still handling taxes and licenses. Someone seeking investors, hiring staff, or assuming larger contractual risks may decide a separate entity is appropriate. Formation is a legal design choice, not merely a badge of credibility.

Using a company register for due diligence

When checking a potential supplier, employer, investment target, or charity partner, start by establishing the exact legal counterparty. Request its registered name and number, then locate that entry on the official site. Compare the entry with the proposed contract, invoices, privacy notice, and payment details. Save the search date and link. Check whether the status, officers, address, and filing history fit the story you have been told.

Next, ask what the register cannot answer. It cannot independently confirm that a service works, that debts are paid, that a salesperson has authority, or that a bank account belongs to the listed company. Seek references, current accounts or management information when appropriate, permits, insurance, and independent contact information. For a regulated financial product, verify the relevant regulator’s separate authorization register. A company’s legal existence should never be presented as proof of regulatory permission.

Finally, weigh anomalies in context. An old name, shared registered office, or recent change of director may have an innocent explanation. A mismatch in legal name and bank beneficiary, an urgent demand to change payment details, refusal to supply a company number, or a link to a fake registry merits much more caution. Document the question, obtain a direct explanation, and verify it independently before committing money or data.

Common mistakes to avoid

The first mistake is assuming every business appears in one national database. Entity registers vary by jurisdiction and entity type, and some unincorporated businesses have no company entry. Search the correct place. The second is assuming a register entry is a quality endorsement. Registrars record and review information under legal rules, but the entry is not a product review, credit rating, or fraud guarantee.

The third is treating a tax number, business license, trademark, domain registration, or third-party directory listing as interchangeable with incorporation. Each answers a different question. The fourth is checking only the name. Names can be similar, change over time, or be used as brands. Match the number and legal entity in the actual agreement.

The fifth is relying on a stale screenshot. Search the live official entry and note the date. The sixth is reading an account filing as a current cash statement. Financial information may be summarized and old. The seventh is overlooking follow-on obligations after incorporation. An entity can miss confirmation statements, accounts, changes of officers, taxes, or licenses even when the initial registration was flawless.

Privacy, corrections, and monitoring changes

Public access has a cost as well as a benefit: details placed on a register can be read, copied, and redistributed. Before filing, distinguish a registered office or service address from a private residential address and check what the official form will publish. Do not assume a third-party filing service has selected privacy-protective defaults. In some circumstances, a registrar can suppress or remove particular personal details, but those procedures are specific and usually require a formal application. The Companies House personal-information charter describes how that registrar handles public and protected data.

If an entry is wrong, begin with the registrar’s official correction guidance. A spelling mistake in your own filing, an unauthorized officer appointment, and a dispute about company ownership are different problems. A new filing may correct a current record without erasing its historical filing trail. Keep copies of your accepted documents and correspondence so you can explain how the record changed. If you suspect identity misuse, contact the registrar through its published channels promptly and consider appropriate professional advice; do not publish someone else’s sensitive information in a public complaint.

For important counterparties, a one-time check may not be enough. The UK search service offers a follow function that alerts registered users to new transactions. Such alerts tell you a filing was accepted; they do not interpret its business significance. Review the document, compare it with your relationship, and decide whether it changes your risk assessment. For a long-term supplier, schedule a periodic check of status, officers, and filing timeliness alongside contract-renewal reviews. Save each observation with its date so your team can distinguish a genuine change from an old cached search result.

Even when a register offers an API or downloadable data, automate responsibly. Observe the registrar’s terms, rate limits, and privacy protections, and keep a human review for consequential decisions. A script can flag a dissolved status or new filing; it cannot establish why that event occurred or whether a particular contract remains enforceable. The best use of automation is to surface questions that deserve examination, not to generate an unqualified “safe” or “unsafe” label for every company.

A practical verification checklist

Before relying on an entry, record: the official registrar URL; date and time of search; exact company number and legal name; jurisdiction and entity type; current status and its date; registered office or agent; current and former officers where public; the latest filing and the period it covers; and any material changes that call for clarification. Then compare the result with the contract, invoice, and known contact channels.

If you are forming a company, record a different checklist: jurisdiction of formation; chosen structure and reason; name and brand searches; registered address or agent consent; directors or managers; ownership details; official application and fee; proof of acceptance; tax and license tasks; governance and banking documents; and recurring reporting dates. Do not copy another jurisdiction’s checklist without checking its rules. A modest, accurate checklist is safer than a long but universal-sounding one.

The core lesson is simple: the company register identifies and documents a legal entity within a defined system. It is a powerful first source for formation and verification, but its fields must be interpreted carefully and combined with other evidence. Go to the official registrar, match the number and legal name, read dates and filings in context, and follow the current rules of the relevant jurisdiction.

More Sly academy Content

Calculator, pencil, blank practice answer sheet and open notebook beside four subject cards on a bright study desk
AP Score Calculators

PreACT Score Calculator: 2026 Rules & Practice Ranges

Recalculate a PreACT Composite with the correct product and testing-period rules, or check official subject ranges for the identified 2026 PreACT Secure online practice test. Includes worked examples and a focused review plan.

Open »
Calculate Your AP Score
Support Us