The word(s) "companion" appears 33 time(s) in 32 verse(s) in Quran in Mohsin Khan translation.

(11) So stand (ask Allah to make) you (Muhammad صلى الله عليه و سلم) firm and straight (on the religion of Islamic Monotheism) as you are commanded and those (your companions) who turn in repentance (unto Allah) with you, and transgress not (Allah's Legal Limits). Verily, He is All-Seer of what you do.

(12) "O two companions of the prison! Are many different lords (gods) better or Allah, the One, the Irresistible?

(13) "O two companions of the prison! As for one of you, he (as a servant) will pour out wine for his lord (king or master) to drink; and as for the other, he will be crucified and birds will eat from his head. Thus is the case judged concerning which you both did inquire."

(14) And keep yourself (O Muhammad صلى الله عليه وسلم) patiently with those who call on their Lord (i.e. your companions who remember their Lord with glorification, praising in prayers, and other righteous deeds) morning and afternoon, seeking His Face; and let not your eyes overlook them, desiring the pomp and glitter of the life of the world; and obey not him whose heart We have made heedless of Our Remembrance, and who follows his own lusts, and whose affair (deeds) has been lost.

(15) And he had property (or fruit) and he said to his companion, in the course of mutual talk: "I am more than you in wealth and stronger in respect of men." (Tafsir Al-Qurtubi).

(16) His companion said to him during the talk with him: "Do you disbelieve in Him Who created you out of dust (i.e. your father Adam), then out of Nutfah (mixed semen drops of male and female discharge), then fashioned you into a man?

(17) "O my father! Verily I fear lest a torment from the Most Gracious (Allah) should overtake you, so that you become a companion of Shaitan (Satan) (in the Hell-fire)." [Tafsir Al-Qurtubi]

(18) And when Our Clear Verses are recited to them, those who disbelieve (the rich and strong among the pagans of Quraish who live a life of luxury) say to those who believe (the weak, poor companions of Prophet Muhammad صلى الله عليه وسلم who have a hard life): "Which of the two groups (i.e. believers or disbelievers) is best in (point of) position and as regards station (place of council for consultation)."

(19) Say (O Muhammad صلى الله عليه وسلم): "I warn you only by the revelation (from Allah and not by the opinion of the religious scholars and others). But the deaf (who follow the religious scholars and others blindly) will not hear the call, (even) when they are warned [i.e. one should follow only the Qur'an and the Sunnah (legal ways, orders, acts of worship, and the statements of Prophet Muhammad صلى الله عليه وسلم, as the companions of the Prophet صلى الله عليه وسلم did)] .

(20) And when the two hosts saw each other, the companions of Musa (Moses) said: "We are sure to be overtaken."