| | Name | Address | Sanction Type | Other Name/Logo | Effect Date | Lapse Date | Grounds | |
| | Ogon, William Tuku | 47 Haile Selassie Street, Asokoro, Abuja, FCT, Nigeria | Debarred | Mr. William Tuku Ogon | 21/Mar/2023 | Until Further Notice | Cross-Debarment: AfDB | |
| | OJOKO, ROBINSON EKENEDILICHUKWU | NO. 2, PINTO
AVENUE, GANA
SAPELE, DELTA STATE
Nigeria | Debarred | | 4/Mar/2019 | Until Further Notice | Cross-Debarment: WB | |
| | ROJOKE CNE SERVICES LTD. | NO. 2, PINTO
AVENUE, GANA
SAPELE, DELTA STATE
Nigeria | Debarred | | 4/Mar/2019 | Until Further Notice | Cross-Debarment: WB | |
| | SALIHU, SHEHU AHMAD TIJAN | FLAT 6 BLOCK B97(BLK 69) PW MAROKO AREA G KUBWA, ABUJA | Debarred | Mr. Salihu | 2/Nov/2021 | 18/Dec/2024 | Cross-Debarment: WB | |
| | Sargittarius Henan Water Conservancy Engineering Ltd | No. 22B Adebayo Doherty Road, Lekki Phase 1, Lagos, NIGERIA | Debarred | | 4/Apr/2022 | Until Further Notice | Cross-Debarment: AfDB | |
| | Sargittarius Nigeria Limited | No. 22B Adebayo Doherty Road, Lekki Phase 1, Lagos, NIGERIA | Debarred | | 4/Apr/2022 | Until Further Notice | Cross-Debarment: AfDB | |
| | SOFTTECH IT SOLUTIONS AND SERVICES LTD. | SB 98 BANEX PLAZA, WUSE 11 – ABUJA, FCT, NIGERIA | Debarred | | 5/Apr/2022 | 28/May/2026 | Cross-Debarment: WB | |
| Non ADB Member Country *2 |
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| Pakistan |
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| Panama - Non ADB Member Country *2 |
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| Papua New Guinea |
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| People's Republic of China |
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| Peru-Non ADB Member Country *2 |
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| Portugal-Non ADB Member Country *2 |
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| | OAS Energy GmbH - Sucursal Portugal | Rua Avenida Brasil, n. 15, 1° andar, 1749-112, Lisboa, PORTUGAL | Debarred | | 3/May/2022 | 17/Mar/2025 | Cross-Debarment: IDB | |
| Qatar-Non ADB Member Country *2 |
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| Rwanda-Non ADB Member Country *2 |
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| Saudi Arabia-Non ADB Member Country *2 |
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| Senegal-Non ADB Member Country *2 |
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| Socialist Republic of Viet Nam |
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| Somalia-Non ADB Member Country *2 |
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| South Africa-Non ADB Member Country *2 |
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| Spain |
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| Sweden |
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