Joshua Bogunjoko

Dr. Joshua Bogunjoko

International Director

Ministry Verse:

May God be gracious to us and bless us and make His face shine upon us, that Your ways may be known on earth, Your salvation among all nations.
Psalm 67:1-2

Joined SIM:

2001

×

Joshua Bogunjoko

Dr. Joshua Bogunjoko

International Director

Ministry Verse:

May God be gracious to us and bless us and make His face shine upon us, that Your ways may be known on earth, Your salvation among all nations.
Psalm 67:1-2

Joined SIM:

2001

About Joshua Bogunjoko:

Dr. Joshua Bogunjoko has served as SIM International Directer since June 2013.

Drs. Joshua and Joanna grew up in families of mixed religious expressions. While Joshua grew up in a family that mixed Christianity with animism, Joanna was born to a Muslim father and a nominal Christian mother, but grew up with her grandmother who was a nominal Christian.

Joshua was active in church from childhood but committed his heart to Christ in his second year of high school. He was privileged to attend one of the mission high schools established by SIM, now run by Evangelical Church Winning All (ECWA). It was there that he met the Lord. From this early age he also encountered missions as he was taught by an SIM missionary and several other committed Christian teachers. Joshua went to the University of Port Harcourt where he read pharmacology (1985) and then medicine, graduating in medicine in 1988. It was in his first year of medical school that he felt the Lord’s call to missions, and it was then he committed his heart to serve the Lord in cross-cultural missions. While attending university, Joshua served in several leadership roles of the evangelical student movement called the Nigerian Fellowship of Evangelical Students (NIFES).

Joshua joined ECWA Evangel Hospital in Jos, Nigeria, in October 1988 as a pre-registration house-officer. He completed a year of national service at the military hospital in Rukuba, Jos, and served as the national president of the evangelical movement of young Christian graduates doing their one year national service, a group of about 3,000 young Christians at the time. He returned to Evangel Hospital, Jos, in 1990 where he did his residency training in Family Medicine with the West African College of Physicians, earning the Fellowship of the College (Fellow of the West African College of Physicians) in 1996.

At Evangel, he developed valuable mentoring relationships that encouraged his vision for missions. During this time, he continued his involvement in the student movement in NIFES and on the Advisory Board of the ECWA student movement as well as in the development of a response to HIV and AIDS and training of health workers in villages across Nigeria. In 1992, Joshua did a short mission assignment at the SIM's Galmi Hospital in Niger. It was here that he felt the Lord calling him back there to serve long-term.

Joanna, also a medical doctor, committed her heart to Christ in her third year of medical school at Ogun State University, Ago-Iwoye in Nigeria. She was also blessed with good pastors who discipled her and encouraged her faith. She was active in church serving as a Sunday School teacher. Joanna joined the University of Ilorin Teaching Hospital for her year of internship in 1992. It was during this time, and through contacts with a friend of Joshua’s at the hospital, that the Lord began to work in Joanna’s heart, leading her to consider mission work as a possible direction for her. It was also through this friend that Joshua and Joanna met in May 1993 and were married in November of the same year.

Joshua and Joanna started their ministry at the SIM Hospital, Galmi, in June 1995 as members of Evangelical Missionary Society of ECWA (EMS) and seconded as SIM associates. Joshua and Joanna served as medical staff and project managers (Joshua in an HIV and AIDS project and Joanna in a Nutrition Rehabilitation Project). In 1999, at the end of their first term in Niger, they went to Briercrest Biblical Seminary in Canada where Joshua earned a Master of Arts degree in Leadership and Management, and went on to do a year of French studies at Laval University, Québec city. While in Canada, Joshua and Joanna joined as full SIM members.

On their return to Galmi in June 2002, Joanna returned to medical practice, while Joshua took on the position of Chief Medical Officer and then Director of the hospital. He filled this role until their move to the SIM International Office in 2006 when Joshua became the SIM Deputy International Director for Europe and West Africa. 

Their ministry verse is Psalm 67, particularly verses 1-2, “May God be gracious to us and bless us and make His face shine upon us, that Your ways may be known on earth, Your salvation among all nations.”

About Joshua Bogunjoko:

Dr. Joshua Bogunjoko has served as SIM International Directer since June 2013.

Drs. Joshua and Joanna grew up in families of mixed religious expressions. While Joshua grew up in a family that mixed Christianity with animism, Joanna was born to a Muslim father and a nominal Christian mother, but grew up with her grandmother who was a nominal Christian.

Joshua was active in church from childhood but committed his heart to Christ in his second year of high school. He was privileged to attend one of the mission high schools established by SIM, now run by Evangelical Church Winning All (ECWA). It was there that he met the Lord. From this early age he also encountered missions as he was taught by an SIM missionary and several other committed Christian teachers. Joshua went to the University of Port Harcourt where he read pharmacology (1985) and then medicine, graduating in medicine in 1988. It was in his first year of medical school that he felt the Lord’s call to missions, and it was then he committed his heart to serve the Lord in cross-cultural missions. While attending university, Joshua served in several leadership roles of the evangelical student movement called the Nigerian Fellowship of Evangelical Students (NIFES).

Joshua joined ECWA Evangel Hospital in Jos, Nigeria, in October 1988 as a pre-registration house-officer. He completed a year of national service at the military hospital in Rukuba, Jos, and served as the national president of the evangelical movement of young Christian graduates doing their one year national service, a group of about 3,000 young Christians at the time. He returned to Evangel Hospital, Jos, in 1990 where he did his residency training in Family Medicine with the West African College of Physicians, earning the Fellowship of the College (Fellow of the West African College of Physicians) in 1996.

At Evangel, he developed valuable mentoring relationships that encouraged his vision for missions. During this time, he continued his involvement in the student movement in NIFES and on the Advisory Board of the ECWA student movement as well as in the development of a response to HIV and AIDS and training of health workers in villages across Nigeria. In 1992, Joshua did a short mission assignment at the SIM's Galmi Hospital in Niger. It was here that he felt the Lord calling him back there to serve long-term.

Joanna, also a medical doctor, committed her heart to Christ in her third year of medical school at Ogun State University, Ago-Iwoye in Nigeria. She was also blessed with good pastors who discipled her and encouraged her faith. She was active in church serving as a Sunday School teacher. Joanna joined the University of Ilorin Teaching Hospital for her year of internship in 1992. It was during this time, and through contacts with a friend of Joshua’s at the hospital, that the Lord began to work in Joanna’s heart, leading her to consider mission work as a possible direction for her. It was also through this friend that Joshua and Joanna met in May 1993 and were married in November of the same year.

Joshua and Joanna started their ministry at the SIM Hospital, Galmi, in June 1995 as members of Evangelical Missionary Society of ECWA (EMS) and seconded as SIM associates. Joshua and Joanna served as medical staff and project managers (Joshua in an HIV and AIDS project and Joanna in a Nutrition Rehabilitation Project). In 1999, at the end of their first term in Niger, they went to Briercrest Biblical Seminary in Canada where Joshua earned a Master of Arts degree in Leadership and Management, and went on to do a year of French studies at Laval University, Québec city. While in Canada, Joshua and Joanna joined as full SIM members.

On their return to Galmi in June 2002, Joanna returned to medical practice, while Joshua took on the position of Chief Medical Officer and then Director of the hospital. He filled this role until their move to the SIM International Office in 2006 when Joshua became the SIM Deputy International Director for Europe and West Africa. 

Their ministry verse is Psalm 67, particularly verses 1-2, “May God be gracious to us and bless us and make His face shine upon us, that Your ways may be known on earth, Your salvation among all nations.”

Our Leadership


Dr. Joshua Bogunjoko

International Director

Dave Bremner

Deputy International Director for East & Southern Africa

Walter Diem

Deputy International Director for Europe & West Africa

Hyon Kim

International Director for People Care and Development


Helon Heron

International Personnel Director

Diane Marshall

Deputy International Director for Asia & the Pacific

René Palacio

Director of Finance and Corporate Governance

Keith Walker

International Strategic Development Director