[2] Ihonvbere was the former Special Adviser on Project Monitoring and Implementation to Nigeria ex-President Olusegun Obasanjo and he was a two-time PDP governorship aspirant in Edo State.
When he returned to Ife as a lecturer in international relations he became secretary of the Academic Staff Union of Universities (ASUU).
He also served as head of the Department of Political and Administrative Studies at the University of Port Harcourt and president of the Senior Staff Club.
An activist scholar, Ihonvbere was very active in the foreign-based opposition struggles against military rule in Nigeria.
He is the current vice-chair of the United Democratic Front of Nigeria (UDFN) – a coalition of pro-democracy, nationality, and human rights groups in North America and Europe with Professor Wole Soyinka as chairman.
He was in the executive of the Joint Action Committee on Nigeria (JACON) that brought together the opposition groups in exile.
He is member, Nigeria Development Forum (NDF), and holds the National Honour of Officer of the Order of the Niger (OON).