Foreign registered companies
If a foreign company intends to establish a branch or a permanent place of business in the Isle of Man, it is subject to Part XI of the Companies Act 1931, which provides for registration on the island. Within one month it must deposit with the Registrar a certified copy of its Memorandum and Articles of Association, a list and particulars of its directors and company secretary, and details of one or more resident individuals authorised to receive notices and communications. Once registered, the foreign company will be treated in the same way as a Manx company, and can take exempt or international status if appropriate.

Partnerships
Partnerships are governed by the Partnership Act 1909, which is based on the UK Partnership Act 1890 and the UK Limited Partnership Act 1907.
Partners may be individuals or companies. In a general partnership, a partner's liability in unlimited. Under the Registration of Business Names Acts 1918 and 1954, partnership names must be registered if they differ from the surnames of the partners.
Partnership agreements and financial accounts do not have to be filed at the general registry. Limited partnerships are also governed by the Partnership Act 1909. They must be registered as such, or they may be deemed to be general partnerships.
Partners may be individuals or companies. A limited partnership consists of one or more general partners with unlimited liability, and one or more limited partners, who are liable only to the extent of their capital contributions. A limited partner does not take part in the management of the partnership and is not entitled to dissolve the partnership by notice.
Limited partnerships may have up to twenty partners; but in banking only up to ten partners. An International Limited Partnership (ILP) is similar in structure to a Limited Partnership and was introduced by the International Business Act 1994. The general partner must be a Manx-resident company and must comply with the requirements for a company to be an International Company (see above); the limited partners must either be non-resident or must be themselves International Companies. The status of International Limited Partnership has to be applied for each year, with payment of a fee, and the Assessor issues a certificate. On demand, an ILP must produce its accounting records to the Assessor. There is no limitation on the number of partners in an ILP, and this format is suitable for collective investment vehicles, among others.