How to Check a UK Company's Age and Incorporation Date

Every company registered in the UK has a public incorporation date recorded at Companies House. That single date can tell you a surprising amount - whether you are vetting a supplier, checking a potential client, or hunting for newly formed businesses to approach as prospects.

This guide explains where to find a company's incorporation date, how to interpret it, and what it actually tells you about the business behind the registration.

Why Company Age Matters

Company age is one of the quickest trust signals available for any UK business. A company that has been trading for twelve years carries a very different risk profile to one that was registered three weeks ago. Neither is inherently good or bad, but the age shapes the questions you should be asking.

Common reasons people look up company age include:

  • Supplier due diligence - confirming a business has a meaningful trading history before signing a contract
  • Credit and financial risk checks - lenders and credit agencies weight longevity when assessing risk
  • B2B prospecting - finding companies incorporated within the last 30 to 90 days, who are actively making new purchasing decisions
  • Fraud prevention - spotting phoenix companies that have been recently reformed after a prior dissolution
  • General curiosity - answering the question "how old is this company?" before a meeting or negotiation

Where the Incorporation Date Lives

The official source is the Companies House public register. Every limited company, LLP, and other registered entity in Great Britain and Northern Ireland must file with Companies House, and the incorporation date is part of the core public record. It is freely available to anyone - no account or subscription required.

The date you will find is the date Companies House formally accepted and registered the company. For most businesses this is also the date trading became legally possible, though many companies sit dormant for months or years after incorporation before any real activity begins.

How to Look Up a Company's Incorporation Date

The process is straightforward. Here is a step-by-step walkthrough:

  1. Go to companieshouse.gov.uk and use the search bar at the top of the page.
  2. Type the company name or company number. If you know the company number, use it - names are not unique and you may get multiple results for common trading names.
  3. Click the correct company from the results list. Pay attention to the company status (Active, Dissolved, etc.) and the registered address to make sure you have the right entity.
  4. On the company overview page, look for the Incorporated on field. This is displayed near the top of the page alongside the company number and registered address.
  5. The date is shown in the format DD Month YYYY - for example, 14 March 2019.

That is the incorporation date. To calculate the company's age from that date, you subtract it from today's date. For a quicker answer without the mental arithmetic, you can use our free company age calculator, which does the maths instantly.

Using the Company Number as a Rough Age Proxy

If you need a rough sense of when a company was formed without looking up the full record, the company registration number gives you a clue. Companies House issues numbers sequentially, so higher numbers generally indicate more recent registrations.

Approximate ranges by era:

  • Below 1,000,000 - typically pre-1980s registrations (very long-established companies)
  • 1,000,000 to 3,000,000 - roughly 1980s to late 1990s
  • 3,000,000 to 6,000,000 - roughly late 1990s to mid-2000s
  • 6,000,000 to 10,000,000 - roughly mid-2000s to 2015
  • 10,000,000 to 13,000,000 - roughly 2015 to 2022
  • 13,000,000 and above - 2023 onwards

This is a rough guide only. Scottish companies use an SC prefix, Northern Ireland companies use NI or R, and LLPs use an OC prefix - these run on their own sequences. For a precise answer, always check the actual incorporation date on the register.

"Active Since" vs "Incorporated On" - When Dates Differ

You may sometimes encounter references to when a company has been "active since" a date that does not match its incorporation date. There are a few reasons this can happen.

Re-registrations and conversions

A private limited company can re-register as a public limited company (PLC), and vice versa. When this happens, a new company number is issued and a new incorporation date appears on the register. The underlying business may be many years older than the new record suggests. Similarly, a sole trader or partnership that later incorporates will have an incorporation date that post-dates the start of the actual trading activity.

Dormant companies

A company may have been incorporated years ago but only begun trading recently. In this case, the incorporation date significantly overstates the trading age. The company age calculator gives you the legal age - if trading age is what matters for your purposes, you will need to cross-reference with filed accounts to see when revenue first appeared.

Phoenix companies

A phoenix company is a new company formed to continue the business of a previous company that was dissolved or went into liquidation. The new company may have identical directors, a similar name, and the same customer base - but a very recent incorporation date. Always check director history alongside company age if fraud or insolvency risk is a concern. See our guide on how to check a UK company for a full due diligence walkthrough.

Check Any Company's Age Instantly

Our free company age calculator lets you look up any UK company and see exactly how old it is. Enter the company name or number and you will get the incorporation date, company age in years and months, and key details from the Companies House register.

It is useful for:

  • Due diligence notes where you need an exact figure
  • Quickly sense-checking whether a business is as established as it claims
  • Identifying companies within a specific age band for B2B outreach

What Company Age Actually Tells You

Survival rates and stability

UK company survival statistics show that a significant proportion of newly incorporated companies are dissolved within the first two to three years. A company that has been active for five or more years has, by definition, survived that initial high-risk period. This does not mean it is financially healthy now, but it does suggest some degree of operational durability.

Trust and credibility signals

Older companies tend to have longer filing histories, more years of accounts on record, and a trackable story of growth or stability. For procurement teams and credit analysts, that filing history is evidence. A two-month-old company with no filed accounts and no trading history cannot offer the same assurance, which is not a criticism - it is simply a different risk profile.

When a young company is not a red flag

Many excellent businesses are young. A founder who previously ran a well-established firm may incorporate a new vehicle that has no age but carries significant personal credibility. Age should be one data point in a broader picture, not a pass-or-fail filter on its own.

New vs Established Companies for B2B Prospecting

For sales and marketing teams, company age is a targeting variable rather than a trust signal. The logic works in both directions.

Newly incorporated companies are in active buying mode. They need accountants, insurance, software, office space, telecoms, banking, HR support, and dozens of other services. The first 30 to 90 days after incorporation is a window where purchasing decisions are being made for the first time. Reaching these companies early gives you a genuine first-mover advantage before competitors have had the chance to build a relationship.

Established companies may be more valuable in sectors where credibility and longevity are prerequisites for winning the work - financial services, regulated industries, enterprise procurement. In those cases, filtering for companies with at least two or three years of trading history removes prospects who are unlikely to qualify.

NewcoHunter is built specifically around monitoring for newly incorporated UK companies by SIC code, geography, and date. If your sales motion targets early-stage businesses, our guide to new company data for B2B lead generation explains how to make that work in practice.

Related Checks to Run Alongside Company Age

Company age is rarely useful on its own. Here are the other checks that pair well with it:

  • Company status - confirm the company is still Active and not dissolved, dormant, or in administration.
  • Director search - check the director's history across multiple companies. A director with a string of dissolved companies raises questions that age alone will not surface. See our Companies House complete guide for details.
  • Filed accounts - the accounts on record show revenue, profit, and net assets. A five-year-old company with consistently filed micro-entity accounts is a very different prospect to one that has missed filings.
  • Persons with significant control (PSC) - understanding who ultimately owns and controls a company is essential for due diligence and AML compliance.
  • SIC code - the industry classification tells you what the company does. Combining this with age tells you whether you are looking at an established player or a brand new entrant.
  • Registered address - a registered office at a company formation agent address (particularly for a very young company) may indicate the business has no physical premises yet.

For a structured approach to all of these checks together, see our guide on how to check a UK company.