Newly appointed  Managing Director of the National Inland Waterway (NIWA), Senator Olorunnimbe Mamora is not a stranger to followers of events in Nigeria.

Born 16 February 1953, Mamora obtained a B.Sc, Health Sciences, Bachelor of Medicine and Bachelor of Surgery (MBBS) University of Ife, Ile-Ife and became a Health Practitioner. He was Medical Director of a Medical Centre from 1987 – 1998) and a Company Medical Adviser from 1988 – 1992. 

Mamora was a National Delegate for the National Republican Convention (NRC) in 1990, and Secretary, Lagos East of the United Nigeria Congress Party (UNCP) in 1998. 

He was elected to the Lagos State House of Assembly in 1999 and was elected Speaker of the Assembly.  He also served as Chairman of the Conference of Speakers from 2000 – 2001. 

Mamora was elected to the Senate in April 2003 and reelected in 2007. He was also a member of the Economic Community of West African States (ECOWAS) Parliament (2003 – 2006).

In 2003 he was appointed chairman of the Senate Committee on Ethics, Privileges and Public Petitions. 

After resuming his seat in the Senate in 2007, he was appointed to committees on Upstream Petroleum Resources, Selection Committee, Health and Federal Character & Inter-Government Affairs.

In a mid-term evaluation of Senators in May 2009, he was reported as having sponsored bills on Tenure of Office, Surgeon-General of Nigeria and repeal and amendment of the Tobacco Control Act. He sponsored or co-sponsored motions including one to amend Senate rule 111 to bring it into conformity with the Constitution of the Federal Republic of Nigeria. Mamora was described as a master of parliamentary procedures.

He served as Deputy Director-General of the Buhari Campaign Organisation in the 2015 general elections.