Company
A company is a legally-recognised group or association of people who have a common goal and who use their respective talents to achieve that goal. In the UK, companies must be registered under the Companies Acts (or other similar legislation).
Companies can take various forms, including:
- Voluntary organisations
- Partnerships
- Private limited companies
- Public limited companies
- Limited liability companies.
- Unlimited companies.
- Franchises
- Workers cooperatives
In the UK, when a company’s name is followed by the letters ‘Ltd’, it denotes that the company is a private limited company. In other words, in the event of the company being liable say, for a misdemeanour or economic misadventure, the shareholders or subscribers of that company are liable only for the amount of their investment or what they have guaranteed to the company, ie, they have limited liability. For example, if an investor owns £10,000 worth of shares and the company becomes bankrupt (or ‘goes bust’), the investor is only liable for the value of the shares even if the company’s debts run into millions.
If a limited company is guaranteed by shares (as opposed to limited by guarantee), it may be a private or public company. A private company limited by shares is denoted by Ltd; a public company limited by shares is denoted by PLC (or Plc) after its name. In a Plc, the shares are available to be purchased by the public.
Companies may also be classified according to whether they are public (ie owned by the state) or private.
Suffixes used in various countries to denote whether a company is public or private:
| Country | Public limited company | Private limited company |
| UK | PLC | Ltd |
| France | S.A | s.a.r.l |
| Germany | AG | GmbH |
| Italy | S.p.A | s.r.l |
| Spain | S.A | s.r.l |
| Czech Rep | a.s | s.r.o |
| Greece | S.A (AE in Greek) | EPE |
| Hungary | Zrt | kft |
| Romania | S.A | s.r.l |
[edit] Related articles on Designing Buildings Wiki
- Business.
- Business model.
- Cash flow.
- Consortium
- Investment.
- Joint venture.
- Leverage.
- Limited liability partnership.
- Limited company.
- Managing the procurement process.
- Organisation.
- Overheads.
- Partnering and joint ventures.
- Personal service company.
- Private sector.
- Relevant cost.
- Special purpose vehicles.
- Succession planning.
Featured articles and news
Guidance notes to prepare for April ERA changes
From the Electrical Contractors' Association Employee Relations team.
Significant changes to be seen from the new ERA in 2026 and 2027, starting on 6 April 2026.
First aid in the modern workplace with St John Ambulance.
Ireland's National Residential Retrofit Plan
Staged initiatives introduced step by step.
Solar panels, pitched roofs and risk of fire spread
60% increase in solar panel fires prompts tests and installation warnings.
Modernising heat networks with Heat interface unit
Why HIUs hold the key to efficiency upgrades.
Reflecting on the work of the CIOB Academy
Looking back on 2025 and where it's going next.
Procurement in construction: Knowledge hub
Brief, overview, key articles and over 1000 more covering procurement.
Sir John Betjeman’s love of Victorian church architecture.
Exchange for Change for UK deposit return scheme
The UK Deposit Management Organisation established to deliver Deposit Return Scheme unveils trading name.
A guide to integrating heat pumps
As the Future Homes Standard approaches Future Homes Hub publishes hints and tips for Architects and Architectural Technologists.
BSR as a standalone body; statements, key roles, context
Statements from key figures in key and changing roles.
ECA launches Welsh Election Manifesto
ECA calls on political parties at 100 day milestone to the Senedd elections.
Resident engagement as the key to successful retrofits
Retrofit is about people, not just buildings, from early starts to beyond handover.
Plastic, recycling and its symbol
Student competition winning, M.C.Esher inspired Möbius strip design symbolising continuity within a finite entity.
Do you take the lead in a circular construction economy?
Help us develop and expand this wiki as a resource for academia and industry alike.
Warm Homes Plan Workforce Taskforce
Risks of undermining UK’s energy transition due to lack of electrotechnical industry representation, says ECA.
Cost Optimal Domestic Electrification CODE
Modelling retrofits only on costs that directly impact the consumer: upfront cost of equipment, energy costs and maintenance costs.























