At  least  two  thirds  of  an  architecture  firm's  capital  must  be  held  by architects. To work as an architect, a person must be of Tunisian nationality. Authorisations to exercise the profession may be granted to foreign nationals subject to reciprocity.
"Article 1. - No one may bear the title or exercise the profession of architect in Tunisia if he does not meet the following conditions:
1) be of Tunisian nationality; [...]
5) be registered with the Order of Architects.
However, authorizations to exercise the profession of architect may be granted on a precarious and revocable basis by the Minister of Equipment under the conditions of reciprocity set by diplomatic conventions and after consulting the Council of the Order of Architects to foreign architects who would make the request. [...]" (Law on the organization of the architectural profession (n° 74-46 of 22 May 1974), Article 1 [google translation])
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"Article 18:
Independent Architects registered on the Roll of the Order of Architects may, for the joint exercise of the profession as an architect, to set up architectural groups among themselves or with other natural persons.
[...]
Article 20:
Whatever the social form adopted within the architectural group, it must meet the following conditions:
a- the share of the capital of each partner must be in registered form;
b- at least two-thirds of the capital must be held by architects;
c- the management of the architectural group can only be ensured by one or more architects.[...]" (Decree approving the code of professional duties of architects (n° 83-1033 of 1 November 1983), Articles 18 and 20 [google translation])
Law on the organization of the architectural profession (n° 74-46 of 22 May 1974), Article 1
Decree approving the code of professional duties of architects (n° 83-1033 of 1 November 1983), Articles 18 and 20
[<a href="https://www.pist.tn/record/116356?ln=fr">Law</a>],[<a href="https://www.pist.tn/record/96742?ln=fr">Decree</a>]