The difference between a PLC and Ltd comes down to one fundamental distinction: who can own a share in the company. A private limited company (Ltd) is owned by a closed group of shareholders who cannot offer shares to the general public. A public limited company (PLC) can offer its shares to the public and, if it meets the requirements, list on a stock exchange. To answer the common question directly - is Ltd private or public? - a Ltd company is private. It sits at the heart of UK business: over 5.5 million of the UK's registered companies are private limited companies, compared with just 3,915 PLCs - meaning for every public limited company on the register, there are approximately 1,280 private ones.

What is a private limited company (Ltd)?

A private limited company is the standard vehicle for starting and running a business in the UK. It is incorporated at Companies House under the Companies Act 2006 and has a legal identity separate from its owners. That separate identity means the company can own property, enter contracts, sue and be sued - all in its own name.

The defining features of a Ltd company are:

Shares are private. A Ltd company cannot offer shares to the general public or advertise share sales publicly. Shares can be transferred only with the agreement of existing shareholders (subject to the company's articles of association).
Limited liability. Shareholders are liable only for any amount unpaid on their shares. If a shareholder holds 100 fully paid-up shares of GBP 1 each, their maximum exposure is nil - they have already paid in full. This protection is one of the main reasons entrepreneurs choose the limited company structure over a sole trader or partnership.
Minimum requirements are low. A Ltd needs just one director and one shareholder (who can be the same person). There is no minimum share capital requirement.
Accounting flexibility. Small and micro Ltd companies can use simplified accounting and filing exemptions, reducing the reporting burden.
Name. The company name must end with "limited" or "ltd".

To understand how a limited company is formed, see our guide to how company registration works.

What is a public limited company (PLC)?

A public limited company is a more heavily regulated structure that carries the right to offer shares to the public. Not every PLC is listed on the London Stock Exchange or AIM - a company can be incorporated as a PLC without being traded on any exchange - but only a PLC can seek that listing.

The defining features of a PLC are:

Shares can be offered publicly. A PLC may advertise and sell shares to members of the public, which is why it is the structure used by large household-name businesses and by companies raising capital through an Initial Public Offering (IPO).
Minimum share capital. A PLC must have an allotted share capital of at least GBP 50,000, with at least 25 per cent of the nominal value (plus the whole of any share premium) paid up before the company can trade or borrow. Companies House will not issue a trading certificate until this requirement is met.
At least two directors and a qualified company secretary. A PLC must have a minimum of two directors. It must also appoint a company secretary who meets statutory qualifications - a requirement that does not apply to Ltd companies.
Stricter reporting. PLCs cannot use the small-company accounting exemptions available to Ltd companies. They must prepare full statutory accounts and are subject to more demanding disclosure obligations.
Trading certificate. A newly incorporated PLC cannot begin trading or exercising borrowing powers until it has obtained a trading certificate from Companies House confirming the share capital requirement is satisfied.
Name. The company name must end with "public limited company" or "plc".

PLC vs Ltd: the key differences

Feature	Private limited company (Ltd)	Public limited company (PLC)
Can offer shares to the public / list on an exchange	No	Yes
Minimum share capital	None	GBP 50,000 (at least 25% paid up before trading)
Directors required	1 (minimum)	2 (minimum)
Company secretary required	No	Yes - must hold a recognised qualification
Small-company accounting exemptions	Yes (if criteria met)	No - full statutory accounts required
Trading certificate required to begin trading	No	Yes
Name suffix	"limited" or "ltd"	"public limited company" or "plc"
Limited liability for shareholders	Yes	Yes

Advantages and disadvantages of each

Private limited company (Ltd)

Advantages: simpler and cheaper to run; lower compliance burden; small-company exemptions reduce accountancy costs; privacy over share ownership (no public register of substantial shareholders beyond the PSC register); flexible ownership structure.

Disadvantages: cannot raise capital from the public by selling shares; growth through public equity is not possible without re-registering as a PLC; shares are less liquid because there is no public market for them; like all UK limited companies, certain information must be filed at Companies House and is publicly visible, including confirmation statements, accounts, and details of persons with significant control (PLCs face even greater disclosure requirements).

For most founders and small business owners, the Ltd structure is the obvious default. The combination of limited liability, low formation costs, and manageable ongoing obligations makes it far more practical than the alternatives for a business that does not need to raise public capital.

Public limited company (PLC)

Advantages: can raise large amounts of capital from public investors through a stock exchange listing or a public share offer; shares are more easily transferable and can be traded on secondary markets; PLC status can enhance the profile and perceived credibility of large businesses; institutional investors such as pension funds and investment trusts can often invest only in listed PLCs, widening the shareholder base.

Disadvantages: significantly higher compliance and reporting costs; greater scrutiny from shareholders, analysts and regulators; directors face more onerous duties and governance requirements, including those under the UK Corporate Governance Code for listed companies; the GBP 50,000 minimum capital requirement and trading certificate process add friction at formation; ongoing investor relations obligations can be costly and time-consuming. For a fuller treatment of the PLC structure, see our article on the advantages of a public limited company.

Which structure do most new UK companies use?

The answer is clear: almost every newly registered UK company is a private limited company (Ltd).

Of more than 6 million companies currently on the Companies House register, fewer than 5,000 are public limited companies - that is under 0.1 per cent of all registered companies. More than 5.5 million are private limited companies. The reasons are straightforward: a Ltd can be incorporated in a matter of hours for a modest fee, has no minimum capital requirement, and imposes far lighter ongoing obligations than a PLC.

If you track newly registered UK companies by SIC code or geography, you will find that virtually every incorporation is a Ltd. PLCs are typically created by established businesses re-registering in preparation for a stock market listing, or by large organisations that require the PLC structure for regulatory or commercial reasons.

The dominance of the Ltd structure also shapes what you will find when monitoring Companies House for new incorporations. New PLC registrations are rare events that typically accompany significant corporate transactions or restructurings. If you are a business development professional, recruiter, lender, or service provider looking to reach newly formed businesses, the newly incorporated Ltd is your market. The occasional new PLC registration will stand out immediately by name suffix alone.

For trends in UK company formation, see our analysis of UK company formation trends.

Examples of public limited companies

Well-known UK PLCs give a sense of the scale and profile of businesses that use this structure. In each case the PLC status is inseparable from the company's need to access public capital markets and to be subject to the regulatory framework that protects retail investors:

Tesco PLC - the UK's largest supermarket group, listed on the London Stock Exchange.
HSBC Holdings PLC - one of the world's largest banking and financial services organisations.
BP PLC - the global energy company headquartered in London.
Vodafone Group PLC - the multinational telecommunications company.
Rolls-Royce Holdings PLC - the British aerospace and defence manufacturer.

These examples of public limited companies illustrate that the PLC structure is suited to large businesses needing broad public ownership. The vast majority of UK businesses - including most fast-growing startups and established SMEs - operate as Ltd companies throughout their life cycle.

Which sectors register the most new Ltd companies?

Retail, technology and software, real estate, professional services, and construction consistently register the most new limited companies each month. NewcoHunter monitors every new incorporation across all sectors - use the new companies browser to explore recent formations by industry and location.

How do I monitor newly registered Ltd companies in my sector?

NewcoHunter monitors Companies House daily and lets you filter new incorporations by SIC code category and location. Set up a saved search and receive a weekly email digest of new Ltd companies matching your criteria - useful for accountants, recruiters, and B2B sales teams looking to reach new businesses first. Browse newly registered companies or create a free account.

Frequently asked questions

Is a Ltd company private or public?

A Ltd (private limited company) is private. It cannot offer shares to the general public, and its shares can only be transferred with the agreement of existing shareholders. This is the defining difference between a Ltd and a PLC.

Can a Ltd company become a PLC?

Yes. A private limited company can re-register as a public limited company under the Companies Act 2006. This requires a special resolution of the members, confirmation that the share capital meets the GBP 50,000 minimum threshold (with at least 25 per cent of the nominal value paid up, plus the whole of any share premium), and the appointment of a qualified company secretary. Companies House then issues a new certificate of incorporation confirming the re-registration.

Do both PLCs and Ltd companies have limited liability?

Yes. Limited liability is a feature of the limited company structure itself, not of whether the company is public or private. In both a PLC and a Ltd, shareholders are liable only for any amount unpaid on their shares. A fully paid-up shareholder in either type of company bears no further personal liability for the company's debts.

What is the minimum share capital for a PLC?

A PLC must have a minimum allotted share capital of GBP 50,000 in nominal value. At least 25 per cent of that nominal value - plus the whole of any share premium - must be paid up before the company can obtain a trading certificate and begin to trade or borrow. There is no equivalent minimum for a private limited company.

How many directors does a PLC need compared with a Ltd?

A Ltd company requires a minimum of one director. A PLC requires a minimum of two directors and, additionally, a qualified company secretary. The company secretary requirement does not apply to Ltd companies.

Can a PLC be privately owned or unlisted?

Yes. Being a PLC does not mean a company must be listed on a stock exchange or have a large number of shareholders. A PLC can be privately held by a small group of investors. The key distinction is that a PLC has the legal right to offer shares to the public - whether or not it exercises that right. In practice, many PLCs are incorporated in preparation for a future listing rather than to immediately access public markets.

If you want to monitor newly registered Ltd companies in your sector - whether you are looking for early-stage clients, competitors, or partnership prospects - you can browse new companies by industry and location, or set up a custom search to receive alerts when relevant companies are incorporated.

How many PLCs are there in the UK?

As of the latest Companies House data, there are approximately 3,915 active public limited companies in the UK. This compares with over 5 million private limited companies - PLCs account for less than 0.1% of all registered companies. The vast majority of UK businesses, including many well-known brands, operate as private limited companies rather than PLCs.

What is the difference between a listed PLC and an unlisted PLC?

A listed PLC has its shares admitted to trading on a recognised stock exchange such as the London Stock Exchange Main Market or AIM. An unlisted (or private) PLC is a public limited company that has not sought a stock market listing - it can still offer shares to investors, but those shares are not traded on a public market. Most PLCs are unlisted; only around 2,000 UK companies are listed on the main London exchanges.

Can a Ltd company raise investment without becoming a PLC?

Yes. Private limited companies raise investment through private placements to angel investors, venture capital funds, and private equity. This is done via a share allotment without a public offering. Schemes such as SEIS and EIS provide significant tax incentives to investors in private limited companies. Most UK startups and growing businesses raise millions in investment as Ltds without ever converting to a PLC.

Conversions & mappings

SIC, NACE and NAICS Codes Explained: UK, EU and US Industry Classifications

SIC to NACE Conversion: How UK SIC Codes Map to EU NACE Codes