| SONOVISION ROMANIA SRL | | | |
| STRATEGIC LOGISTICS LIMITED | | | |
| SPECIALISED WELDING SERVICES | | | |
| EAST AFRICAN CRANES | | | |
| ORTEC SERVICES INDUSTRIE UGANDA | | | |
| FRIEDLANDER UGANDA LIMITED | | | |
| ORTEC INDUSTRIAL SERVICES SOUTH AFRICA | | | |
| SONOVISION USA INC | | | |
| SONOVISION CANADA INC | | | |
| SONOVISION INGENIEROS | | | |
| SONOVISION AETOS TECHNICAL SERVICES PRIVATE LIMITED | | | |
| TECOR SERVICOS AMBIENTAIS | | | |
| SONOVISION DEUTSCHLAND GMBH | | | |
| SONOVISION LIMITED | | | |
| SOM SWITZERLAND | | | |
| ORTEC INNOVAZIONNE E TECNOLOGIA | | | |
| ORALIA | | | |
| FRIEDLANDER RWANDA LTD | | | |
| FRIEDLANDER INDUSTRIE CONGO | | | |
| FRIEDLANDER CAMEROUN | | | |
| FRIEDLANDER ANGOLA TUBOS E MONTAGENS LIMITADA | | | |
| ALPHA CLIMA | | | |
| ORTEC ENVIRONNEMENT SERVICES | | | |
| OSI GABON | | | |
| ATMN Industrie | | | |
| MILLEIN SAS | | | |
| FRIEDLANDER TOGO | | | |
| CAVE DE LA BARGEMONE | | | |
| FRIEDLANDER BENIN | | | |
| FRIEDLANDER SENEGAL | | | |
| BRUNET | | | |
| TECOR CONGO | | | |
| LOANGO ENVIRONNEMENT | | | |
| FRIEDLANDER MOZAMBIQUE | | | |
| ORIND 11 | | | |
| ORIND 10 | | | |
| ORIND 9 | | | |
| ORIND 8 | | | |
| ORIND 7 | | | |
| ORIND 6 | | | |
| ORIND 5 | | | |
| ORTEC MECA | | | |
| ORIND 2 | | | |
| LIGERON | | | |
| FRIEDLANDER CONGO | | | |
| SONOVISION | | | |
| ORTEC SERVICES ENVIRONNEMENT | | | |
| OWER | | | |
| ORTYS | | | |
| ORTEX | | | |
| ORTEC GENERALE DE DEPOLLUTION | | | |
| ORTEC ENGINEERING | | | |
| PRICE WATERHOUSE COOPERS AUDIT SA | | | |
| ORYS | | | |
| ROGLIANO INDUSTRIE | | | |
| FRIEDLANDER | | | |
| QUINCAILLERIE INDUSTRIELLE BERROISE | | | |
| ORTEC ENVIRONNEMENT | | | |
| SERVICE ORGANISATION ET METHODE SOM | | | |
| ORTEC INDUSTRIE | | | |
| ORTEC SERVICES INDUSTRIE | | | |
| ORIND 4 | | | |
| TECOR CAMEROUN | | | |
| SOCIETE D'EXPLOITATION MONTAGE TUYAUTERIE SOUDURE | | | |
| EERI BF | | | |
| OWER GHANA LIMITED | | | |
| ORSAM LIMITED | | | |
| FRIEDLANDER COTE D'IVOIRE | | | |
| FRIEDLANDER MAINTENANCE HAUT OGOOUE | | | |
| FRIEDLANDER GABON | | | |
| TECOR COTE D'IVOIRE | | | |
| QIB GABON | | | |
| AFRICAXIOR | | | |
| ORTEC SPS | | | |
| ORLOG COTE D'IVOIRE | | | |
| ORLOG GABON | | | |
| ORLOG | | | |
| ORTEC EXPRESS | | | |
| FRIEDCO | | | |
| ORIND 3 | | | |
| AVENOL | OLIVIER | 1968-04 | Director |
| DELAIRE | RENE | 1960-04 | Management Controller |
| EINAUDI | JULIEN | 1982-02 | Director |
| EINAUDI | ANDRE | 1955-02 | Director |
| GASTAUD-MOISY | NICOLAS | 1974-02 | Management Controller |
| GEORGHIOU | JEAN-CHRISTOPHE | 1965-05 | Alternate Statutory Auditor |
| GREDER | BERNARD | 1955-06 | Director |