| Entity | | State of Incorporation/Formation |
| NESR Limited | | United Kingdom |
| National Energy Services Reunited Corporation | | Texas |
| NPS Bahrain for Oil and Gas Well Services W.L.L. | | Algeria |
| NPS Bahrain for Oil and Gas Wells Services W.L.L. | | Iraq |
| National Petroleum Services Company Limited | | KSA |
| NPS Energy DMCC | | UAE |
| NPS Energy Holding W.L.L. | | Bahrain |
| National Petroleum Technology Company | | KSA |
| National Wells Drilling Company | | KSA |
| Specialised Oil Well Maintenance L.L.C. | | UAE |
| NOWMCO Petroleum Services L.L.C. | | UAE |
| NPS Holdings Limited | | UAE |
| National Gulf Petroleum Services | | Kuwait |
| National Oil Well Maintenance Company Limited | | India |
| NPS Energy Oilfield Supplies DMCC | | UAE |
| TAAQAAT Professional Service DMCC | | UAE |
| PT NPS Energy | | Indonesia |
| NPS (B) Sdn Bhd | | Brunei |
| NPS Bahrain for Oil and Gas Well Services W.L.L. | | Bahrain |
| NPS Energy Bahrain W.L.L. | | Bahrain |
| Fahud Energy Solutions L.L.C. | | Oman |
| PT DFI Asia Energi | | Indonesia |
| PT Tiger Energy Services | | Indonesia |
| NPS Energy Sdn Bhd | | Malaysia |
| NPS Malaysia-Labuan | | Malaysia |
| National Petroleum Services | | Libya |
| NPS Energy DMCC | | Iraq |
| NPS International LTD | | Cayman Islands |
| National Oil Well Maintenance Company L.L.C. | | Qatar |
| National Petroleum Services L.L.C. | | Qatar |
| Benon Oil Services, LLC | | Oman |
| Fishing and Remedial Experts Enterprise LLC | | Oman |
| Gulf Drilling Fluids Technology LLC | | Oman |
| Gulf Energy Services LLC | | Oman |
| Intelligent Drilling Services LLC | | Oman |
| Integrated Petroleum Services Company LLC | | Oman |
| Midwest Oilfield Services LLC | | Oman |
| Sino Gulf Energy Enterprises LLC | | Oman |
| Tamkeen Fracking LLC | | Oman |
| Well Maintenance Services LLC | | Oman |
| Well Solution Services LLC | | Oman |
| Makamen Petroleum LLC | | Oman |
| Tasneea Oil and Gas technology LLC | | Oman |
