Pe wikipedia.org am gasit in tabelul cu tipurile de companii pe diverse tari, in dreptul ţării noastre aşa:
S.A. Romania Societate pe Acţiuni Stock corporation Romanian plc.

si tot de pe http://en.wikipedia.org/wiki/Types_of_corporations#Romania avem

Romania
SRL (Societate cu Răspundere Limitată) - Limited Liability Company
SA (Societate pe Acţiuni) - Stock Company (not Anonymous Company)
RA (Regie Autonomă) - A state-owned company with some degree of independence of the management
În ceea ce priveşte acel "close" cred ca se pot gasi clarificari in L31/90 Cap VI - Societati cu răspundere limitată ... ): poate ştie cineva textul de lege ...

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Note added at 2 ore (2006-08-04 07:22:20 GMT)
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Pentru tipurile de societăţi pe acţiuni L31/90 prevede la Cap I, Art. 2 următoarele:
" ART. 2
Societatile comerciale se vor constitui in una dintre urmatoarele forme: a) societate in nume colectiv; b) societate in comandita simpla; c) societate pe actiuni; d) societate in comandita pe actiuni si e) societate cu raspundere limitata."

Si cred ca punctul e) este cel în discuţie aici deci traducerea ar fi : "Societate pe acţiuni cu răspundere limitată"

Public limited company = societate publică cu răspundere limitată, conform Lexiconului ec. de la Ed. economică, însă ...

"Societatea cu răspundere limitată, aşa cum a fost ea reglementată de legea franceză, era o ***societate închisă***; ea nu putea face apel la economiile publicului. "
http://www.biblioteca.ase.ro/downres.php?tc=3166

"The difference between an open and a closed public limited company or "I).10!(0),;!,)6-71: !.(! their ability to sell shares on the open market. Closed companies can only raise capital from a limited
number of insider shareholders, whereas open companies can issue shares on the domestic stock exchange."
http://www.lfs-consulting.de/wp/wp12.pdf

Având în vedere defiiniţia lui "public company":

"A public company is a company owned by the public rather than by a relatively few individuals. There are two different meanings for this term:
A company that is owned by stockholders who are members of the general public and trade shares publicly, often through a listing on a stock exchange. Ownership is open to anyone that has the money and inclination to buy shares in the company. It is differentiated from privately held companies where the shares are held by a small group of individuals, who are often members of one or a small group of families or otherwise related individuals, or other companies. The variant of this type of company in the United Kingdom and Ireland is known as a public limited company.
A government-owned corporation. This meaning of a "public company" comes from the tradition of public ownership of assets and interests by and for the people as a whole, and is the less-common meaning in the United States. See public ownership.

"Publicly-owned company" can also have either meaning, although in the United Kingdom it will usually refer to ownership by national, regional or local government."

m-aş cam feri să-i spun publică. Ar putea fi de stat?

În orice caz, alăturarea aceasta de cuvinte - "Closed Public Limited Company" - e ciudată. "Closed" şi "public" se cam exclud. Poate reuşiţi să vă daţi seama din conţinutul actului constitutiv ce înseamnă de fapt.

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Note added at 3 hrs (2006-08-04 08:23:27 GMT)
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Definiţia pentru "public company" este din Wikipedia http://en.wikipedia.org/wiki/Public_company