As per Lawkidunya, In Pakistan, the following types of companies can be registered under the Companies Act 2017:

Types of Companies

1. Private Limited Company (Pvt. Ltd.): A private company with a minimum of 2 and a maximum of 50 shareholders. The liability of shareholders is limited to their shares.

2. Public Limited Company (Pub. Ltd.): A public company with a minimum of 7 shareholders and no maximum limit. The liability of shareholders is limited to their shares.

3. Single Member Company (SMC): A company with only one shareholder, who is also the director. The liability of the shareholder is limited to their shares.

4. Limited Liability Partnership (LLP): A partnership with limited liability for its partners. It offers the benefits of both partnership and company structures.

5. Joint Venture Company: A company formed by two or more parties to undertake a specific project or business activity.

6. Holding Company: A company that owns the majority of shares in one or more other companies.
7. Subsidiary Company: A company that is owned and controlled by another company.

8. Non-Profit Organization (NPO): A company established for charitable, educational, or social purposes, with no intention of making profits.

9. Section 42 Company: A non-profit company registered under Section 42 of the Companies Act 2017, which enjoys tax exemptions.

Special Types of Companies

1. Small Company: A company with a paid-up capital of PKR 1 million to PKR 10 million.
2. Medium Company: A company with a paid-up capital of PKR 10 million to PKR 100 million.
3. Large Company: A company with a paid-up capital of PKR 100 million or more.
4. State-Owned Enterprise (SOE): A company owned and controlled by the government.
5. Foreign Company: A company incorporated outside Pakistan, with a branch or subsidiary in Pakistan.

Please note that these categories may have specific requirements, restrictions, or benefits under Pakistani law. It’s recommended to consult with a lawyer or chartered accountant to determine the most suitable type of company for your business needs.