In Qatar, the Al-Maadeed tribe includes these major families:
The ruling family of Qatar are from the Al Maadeed tribe. Though they are mainly present in Qatar, there are Maadeed's in Kuwait as well as Saudi Arabia. The Al Maadeed's are descendants of the Bani Tamim.
The founder of Qatar H.H. Sheikh Mohammed Bin Thani was chosen from Al Maadeed tribe as the leader of the modern Qatar. He was chosen because of his good personal characteristics and friendliness. Till Now, Al-Thani the descendants of Mohammed Bin Thani are chosen as leaders of Qatar.
J.G. Lorimer's book Gazetteer of the Persian Gulf states that, in 1908, there were 875 members of the Al Maadeed tribe in Qatar. They were mainly centered in Al Wakrah, Lusail and the capital Doha.
Ibrahim bin Jarallah bin Dekhnah Al Sharifi's book Al-Maadheed and Qatar: the history and pedigree and civilization pp 144–148 first edition 1999. 
- "'Gazetteer of the Persian Gulf. Vol. II. Geographical and Statistical. J G Lorimer. 1908'  (1650/2084)". Qatar Digital Library. Retrieved 27 July 2015.
- "'Gazetteer of the Persian Gulf. Vol. II. Geographical and Statistical. J G Lorimer. 1908'  (1646/2084)". Qatar Digital Library. Retrieved 26 July 2015.
- "'al-Maʻāḍīd wa-Qaṭar: Tārīkh wa-nasab wa-ḥaḍārah'". al-Khālidīyah. Archived from the original on 4 June 2016. Retrieved 5 May 2016.