Περί Ανωτάτου Δικαστηρίου (Δικαιοδοσία Ναυτοδικείου) Διαδικαστικός Κανονισμός (Δ.Ν. Τόμος ΙΙ, σελ.573)

19. A writ of summons against a firm may be served by leaving with any member of the firm, or any person appearing at the time of service to have the management of the business of the firm, an office copy of the writ.