The main five company registers in a limited company are important records that should be maintained and updated by the company. These registers provide a comprehensive overview of the company's key information, and can be inspected by regulatory authorities or shareholders.

The five company registers are:

1. Register of Members: Contains details of the company's shareholders, including their names, addresses, and the number of shares they hold. It also records any changes in share ownership, such as transfers or allotments. This register is a statutory requirement.

2. Register of Directors: Lists the company's directors, including their names, addresses, and other relevant details. It also records any changes in directorship, such as appointments, resignations, or removals.

3. Register of People with Significant Control (PSC): Identifies individuals or entities that have significant control or influence over the company. This includes individuals who own or control more than 25% of the company's shares or voting rights, or those who have the ability to appoint or remove a majority of the board of directors.

4. Register of Charges: Documents any charges or mortgages that the company has taken out against its assets. It includes details of the charge, the property or assets secured, and the names of the charge holders.

5. Register of Secretaries: If the company has a company secretary, this register contains their details, including their name, address, and other relevant information. It also records any changes in the company secretary position.

These company registers play a crucial role in ensuring transparency, accountability, and compliance with legal requirements for limited companies. It is important for companies to keep these registers up to date and accessible for inspection when required.