These Pakistanis are attached with two companies operating in Baghdad, Masood told ARY television while quoting Pakistan's ambassador to Kuwait Khizar Hayat Niazi.
About 40 Pakistanis are working with an Australian company which is constructing the British embassy in Baghdad while 320 are associated with Al-Tamimi group of Industries.
Masood said, these Pakistanis have not expressed the desire to get out of Iraq.
Responding to a questions, he said Pakistan government is making efforts to recover bodies of the two Pakistanis killed by their captors. "We are in regular contact with the Iraqi interim government", Masood said adding the Iraqi Prime Minister has also directed the Interior Ministry to utilise all available resources to find the bodies.
All security agencies in Iraq have been directed by the Iraqi government to intensify efforts to recover bodies of the two slain Pakistanis, the spokesman added.
After Friday sermons in Iraq, he said special appeals were made to recover the bodies of the two Pakistanis to send them to their homeland for burial.