| Name | Membership No. | Grade | Branch |
|---|---|---|---|
| Emmanuel Ndubueze Ojukwu | SE 0121 | Fellow | Enugu |
| Olatunbosun Ola Ojumu | SE 0170 | Member | – |
| Nnabuike K Okafor | SE 0233 | Member | Abuja |
| John Adelere Okanlawon | SE 0656 | Member | Ibadan |
| Abraham Adebayo Oke | SE 0013 | Fellow | Lagos |
| Joseph Taiwo Oke | SE 0879 | Member | – |
| Peter Agboola Oke | SE 0409 | Member | – |
| Sikiru Olatunbosun Oke | SE 0026 | Fellow | Lagos |
| Ignatius Okeke | SE 0803 | Member | – |
| Innocent Odili Okeke | SE 0572 | Fellow | Abuja |
| Obikwu C Okeke | SE 0042 | Fellow | Enugu |
| Calister Ngozi Okere | SE 0668 | Member | Lagos |
| Nnaemeka Okide | SE 0267 | Fellow | Lagos |
| Collins Chukwuebuka Okoli | SE 0892 | Member | – |
| Joseph Ihenwa Okolo | SE 0569 | Fellow | Lagos |
| Asuquo Bassey Okon | SE 0653 | Member | Uyo |
| Bassey Bassey Okon | SE 0500 | Fellow | Uyo |
| Chukwulewa George Okoroma | SE 0785 | Fellow | Portharcourt |
| James Eni Okosun | SE 0681 | Member | Lagos |
| John Omeiza Okovido | SE 0583 | Fellow | Benin |
| Anthony Chukwudi Okoye | SE 0756 | Fellow | Lagos |
| HRH Igwe Augustine Chukwuma Okoye | SE 0116 | Fellow | Awka |
| James Chukwuemeka Okoye | SE 0800 | Member | Awka |
| Christopher Okwudili Okpala | SE 0324 | Fellow | Lagos |
| Babatunde R Okuboyejo | SE 0325 | Member | – |