Colonel Isaac Awuah-Mantey was born on 31st December 1964 at Bepong Kwahu.   He attended Abuakwa State College where he obtained General Certificate of Education (Ordinary and Advanced Levels) between 1979–1986. He gained admission into the Ghana Military Academy on 29 October 1987 to pursue the Basic Military and successfully commissioned on 18 August 1989.

Colonel Isaac Awuah-Mantey has attended several military courses till date. They include; Regimental Officers Course, STS from September to December 1989; Young Officers Basic Course, MATS, TESHIE from August to December 1992; Parachute Jumping Instructors Course, Number One Parachute Training School, Royal Air-force, Brize Norton, UK from February to July 1993; Public and Non-Public Accounting Course, from September to December 1993.

From October to December 1998, he completed his Junior Staff Course at MATS, Teshie.   Other courses he participated in include; Combat Team Commander’s Course, Army Combat Training School (ACTS), MATS, Teshie from May to August 2004; Senior Staff Course, Ghana Armed Forces Command and Staff College (GAFCSC), Teshie from September 2004-August 2005.   He also pursued Internal Crisis Management and Defence Management Courses all at Ghana Armed Forces Command Staff College. He also holds a Post Graduate Diploma in Public Administration.

Colonel Isaac Awuah-Mantey also held several internal and international appointments. They include Platoon Commander, ECOMOG GH 3 Liberia December 1991 to July 1992, Company Commander ECOMOG GH 8 Liberia from August 1993 – January 1994, Platoon Commander UNIFIL GH 36 from March to September 1994, MIO UNIFIL GH 44 from February – August 1996, Company Commander UNIFIL GH 48 from February- July 1998, Company Commander UNIFIL GH 55 from September 2002 – March 2003. Military Observer UNMEE from September 2004 – September 2005, Deputy Commanding Officer (DCO) UNOCI GH 5 from March – September 2006, Commanding Officer (CO) UNIFIL 71 from September 2009 – March 2010, CO MONUSCO GH 5 from February to July 2012 and Staff Officer (SO) at UNIFIL HQ from July 2014 to July 2015.

Other appointments held include Directing Officer (DS) GAFCSC, August 2012 to July 2013, Deputy Director Land Operations Joint Operations General Headquarters (GHQ) from July to October 2013, Deputy Director Accommodation, GHQ (LOG) from October 2013 to July 2014, Deputy Director Inspection and Validation, GHQ (IGD) from September 2015 to April 2016.

Colonel Isaac Awuah-Mantey is currently the Deputy Commander, GMA. He is married with a son. His hobbies are reading and watching football.