Glossary entry (derived from question below)
English term or phrase:
PTY Company
Arabic translation:
شركة مالكة
English term
PTY Company
Proposed translations
your Arabic language partner
Native in: Arabic 
Works in: English to Arabic, Arabic to English, Arabic, and 1 more.
شركة مالكة
Jordan
Dead On Dealines....
Native in: English 
, Arabic
Works in: English to Arabic, Arabic to English, Arabic
ذات ملكية محدودة
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Note added at 29 mins (2006-04-30 08:51:33 GMT)
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شركة ذات ملكية محدودة
Australia
Craftsmanship, ideas, expert knowledge
Native in: Arabic (Variants: Syrian, Egyptian, Palestinian, Lebanese, Sudanese, Standard-Arabian (MSA)) , English (Variants: British, Australian, US)
Works in: English to Arabic, Arabic to English
شركة مالكة ذات مسؤولية محدودة
Jordan
28 Years of accurate Arabic
Native in: Arabic
Works in: Portuguese to Arabic, Arabic to Portuguese, English to Arabic
شركة التوصية البسيطة
PTY is a proprietary limited company must have at least one shareholder and must have no more than 50 non-employee shareholders and at least one director who must live in Australia with an appointed secretary that must be at least 18. One person may hold both positions of company director and secretary.
In Jordan it is called Limited Partnership company
Article (41): Founding of a Limited Partnership
A Limited Partnership is formed of the two following categories of partners whose names should be listed in the Partnership Agreement
http://www.mit.gov.jo/commpanylowPart2_En.asp
In arabic it is called شركات توصية بسيطة
شركة التوصية البسيطة
المادة (41): تأسيس شركة التوصي
تتألف شركة التوصية البسيطة من الفئتين التاليتين من الشركاء وتدرج وجوبا اسماء الشركاء في كل منهما في عقد الشركة.
http://www.mit.gov.jo/ccd_low/main.htm
http://en.wikipedia.org/wiki/Pty
Australia
Able, Accurate and Available
Native in: Arabic
Works in: Arabic to English, English to Arabic
شركة أهلية
proven quality translation work
Native in: Arabic (Variants: Yemeni, Standard-Arabian (MSA))
Works in: Arabic to English, English to Arabic
Discussion
So How come this to be translated to شركة مالكة.
Limited by shares (Ltd.) - Shareholders are afforded more protection when it comes to the level of liability they face for company debts.