| 1 | Bouygues Energies & Services | France | Guyancourt | 1 Avenue Eugene Freyssinet | Yvelines | 78280 | bouygues-es.***** | 1980 | $1,318,604,552 | 4,792 | N/A | N/A | 77566487304147 |
| 2 | Alcatel Submarine Networks | France | Les Ulis | 1 Avenue Du Canada | Essonne | 91940 | N/A | 1992 | $1,149,418,135 | 1,349 | N/A | N/A | 38953425600117 |
| 3 | Spie Citynetworks | France | Saint-ouen-sur-seine | Tsa 20028 St Ouen sur Seine 93484 St Ouen Cedex | Seine-saint-denis | 93400 | N/A | 2000 | $945,616,199 | 3,968 | N/A | N/A | 43408539500938 |
| 4 | Eiffage Energie Systemes - Clemessy | France | Mulhouse | 18 Rue de Thann | Haut-rhin | 68200 | clemessy.***** | 1957 | $781,681,677 | 3,997 | N/A | N/A | 94575213700212 |
| 5 | Snef | France | Marseille | 87 Av Ibrahim Ali | Bouches-du-rhône | 13015 | snef.***** | 1954 | $676,699,369 | 4,037 | N/A | N/A | 05680065900155 |
| 6 | Spie Building Solutions | France | Saint-ouen-sur-seine | Tsa 90026 - 93484 Saint Ouen sur Seine Cedex | Seine-saint-denis | 93400 | N/A | 2001 | $635,628,717 | 2,765 | N/A | N/A | 44005586102730 |
| 7 | Spie Industrie | France | Toulouse | Zone Industrielle Montaudran | Haute-garonne | 31400 | spie.***** | 2018 | $589,449,252 | 3,210 | N/A | N/A | 84460672300022 |
| 8 | Sogetrel | France | Issy-les-moulineaux | 143 Av de Verdun | Hauts-de-seine | 92130 | sogetrel.***** | 1994 | $552,221,398 | 2,802 | N/A | N/A | 39776783100811 |
| 9 | Spie Facilities | France | Saint-ouen-sur-seine | Tsa 10027 - 93484 Saint-ouen-sur-seine Cedex | Seine-saint-denis | 93400 | N/A | 2011 | $507,774,491 | 2,906 | N/A | N/A | 53870002200345 |
| 10 | Chubb France | France | Cergy | Campus Saint Christophe Batiment Ediso | Val-d'oise | 95800 | chubbsecurite.***** | 1970 | $466,342,638 | 2,000 | N/A | N/A | 70200052201754 |
| 11 | Ensio SAS | France | Vélizy-villacoublay | Immeuble le Breguet | Yvelines | 78140 | N/A | 1968 | $464,673,782 | 938 | N/A | N/A | 31050577100272 |
| 12 | Ert Technologies | France | Thaon-les-vosges | Thaon-les-vosges | Vosges | 88150 | ert-technologies.***** | 2000 | $447,773,674 | 1,471 | N/A | N/A | 43250597200278 |
| 13 | Edf Solutions Solaires | France | Limonest | Etage 2 | Rhône | 69760 | N/A | 2000 | $437,328,843 | 620 | N/A | N/A | 43316090000455 |
| 14 | Ineo Infracom | France | Dijon | 21 Avenue Francoise Giroud | Côte-d'or | 21000 | engie-ineo.***** | 1996 | $398,786,808 | 1,493 | N/A | N/A | 40986794200909 |
| 15 | Electricite Industrielle J. P. Fauche | France | Montauban | 37 Avenue Gambetta | Tarn-et-garonne | 82000 | fauche.***** | 1977 | $343,295,247 | 1,815 | N/A | N/A | 30825057001087 |
| 16 | Sobeca | France | Anse | Zone Industrielle | Rhône | 69480 | sobeca.***** | 1970 | $332,396,384 | 1,713 | N/A | N/A | 70378024700044 |
| 17 | Inelfe | France | Puteaux | Immeuble Window | Hauts-de-seine | 92800 | N/A | 2008 | $329,760,227 | 12 | N/A | N/A | 50927007000048 |
| 18 | Altitude Infrastructure Construction | France | Courbevoie | Tour Trinity | Hauts-de-seine | 92400 | N/A | 2008 | $308,395,054 | 369 | N/A | N/A | 50960128200445 |
| 19 | Eiffage Energie Systemes - Ile De France | France | Saint-denis | 2 Rue Flora Tristan | Seine-saint-denis | 93210 | forclumsante.***** | 1998 | $266,056,225 | 1,207 | N/A | N/A | 42054064300269 |
| 20 | Constructel Constructions Telecommunica. | France | Portes-lès-valence | Zad de Morlon | Drôme | 26800 | constructel.***** | 2002 | $242,257,999 | 1,308 | N/A | N/A | 44283546800087 |
| 21 | Ineo Nucleaire | France | Lyon | 6 Rue Alexander Fleming | Rhône | 69007 | N/A | 1996 | $227,598,551 | 1,024 | N/A | N/A | 40989907700237 |
| 22 | Satelec | France | Viry-châtillon | 24 Avenue Du General de Gaulle | Essonne | 91170 | satelec-fayat.***** | 1971 | $220,525,531 | 1,114 | N/A | N/A | 97120154600043 |
| 23 | Spie Nucleaire | France | Cergy | 95863 Cergy Pontoise Cedex | Val-d'oise | 95800 | spie.***** | 1992 | $216,302,813 | 1,399 | N/A | N/A | 66204928700052 |
| 24 | Eiffage Energie Systemes - Transport & Distribution | France | Verquin | Route Departementale 937 | Pas-de-calais | 62131 | eiffageenergie.***** | 1982 | $212,395,207 | 683 | N/A | N/A | 30912281000083 |
| 25 | SARL Montebrun | France | La Flèche | Place de la Liberation | Sarthe | 72200 | montebrun-electricite-sanitaire.***** | 2008 | $211,501,600 | 6 | N/A | N/A | 50333349400014 |
| 26 | Eri | France | Fontenay-sous-bois | 45 Rue de la Prairie | Val-de-marne | 94120 | eri.***** | 1957 | $188,845,393 | 961 | N/A | N/A | 57207890500021 |
| 27 | Brunet | France | Chasseneuil-du-poitou | 2 Allee Des Cytises | Vienne | 86360 | brunet-groupe.***** | 1993 | $187,108,651 | 500 | N/A | N/A | 38981890700013 |
| 28 | Vinci Energies | France | Nanterre | 2169 Boulevard de la Defense | Hauts-de-seine | 92000 | vinci-energies.***** | 1993 | $181,735,559 | 76 | N/A | N/A | 39163584400320 |
| 29 | Ineo Reseaux Centre Atlantique | France | Orléans | Parc D'Activites les Montees | Loiret | 45100 | N/A | 1996 | $176,564,501 | 446 | N/A | N/A | 40985159900244 |
| 30 | Eiffage Energie Systemes - Reseau Mobile | France | Marseille | 7 Rue Francois Moisson | Bouches-du-rhône | 13002 | N/A | 2019 | $176,016,689 | 791 | N/A | N/A | 87991679900155 |
| 31 | Ineo Tertiaire Idf | France | Courbevoie | 6 Rue Du General Audran | Hauts-de-seine | 92400 | N/A | 2000 | $174,576,730 | 752 | N/A | N/A | 42942515000183 |
| 32 | Spie Batignolles Energie | France | Nanterre | 109 Avenue de la Commune de Paris | Hauts-de-seine | 92000 | N/A | 1986 | $173,642,120 | 500 | N/A | N/A | 55211976000262 |
| 33 | Ensio Sud | France | Mérignac | Airial Parc Batiment 5 | Gironde | 33700 | sade-telecom.***** | 2000 | $173,586,345 | 901 | N/A | N/A | 43372511600118 |
| 34 | Allez Energies | France | Paris | 27 Rue Danielle Casanova | Paris | 75001 | allez.***** | 1957 | $170,696,248 | 1,018 | N/A | N/A | 57220154900019 |
| 35 | Engie Green France | France | Courbevoie | 1 Place Samuel de Champlain | Hauts-de-seine | 92400 | engie-green.***** | 2004 | $159,611,251 | 662 | N/A | N/A | 47882675300202 |
| 36 | Snef Power Services | France | Marseille | 87 Av Ibrahim Ali | Bouches-du-rhône | 13015 | snef.***** | 2019 | $157,537,705 | 963 | N/A | N/A | 85145848900024 |
| 37 | Dalkia Electrotechnics | France | Courbevoie | Tour Europe | Hauts-de-seine | 92400 | dalkiaelectrotechnics.***** | 2020 | $155,309,037 | 591 | N/A | N/A | 89238003100393 |
| 38 | Phibor Entreprises | France | Rungis | 12-14 | Val-de-marne | 94150 | phiborentreprises.***** | 1997 | $155,262,182 | 329 | N/A | N/A | 41279019800045 |
| 39 | Eiffage Energie Systemes - Aquitaine | France | Biscarrosse | Zone Industrielle | Landes | 40600 | eiffageenergie.***** | 1994 | $151,932,744 | 947 | N/A | N/A | 40107089100015 |
| 40 | Ensio Est | France | Metz | Zac Sebastopol | Moselle | 57070 | connexion.***** | 2006 | $146,037,316 | 663 | N/A | N/A | 49288848200022 |
| 41 | Sdel Infi | France | Nanterre | 22-24 - 9e Etage | Hauts-de-seine | 92000 | actemium.***** | 2002 | $145,328,516 | 521 | N/A | N/A | 44397582600258 |
| 42 | Apex Energies | France | Montpellier | Parc Majoria Batiment Cassiopee | Hérault | 34000 | apexenergies.***** | 1991 | $142,778,328 | 500 | N/A | N/A | 38249949900228 |
| 43 | Ineo Midi Pyrenees Languedoc Roussillon Et Par Abreviation Ineo Mplr | France | Toulouse | 16 Rue Claude-marie Perroud | Haute-garonne | 31100 | edf.***** | 1997 | $136,398,156 | 630 | N/A | N/A | 41471953400094 |
| 44 | Ineo Provence Et Cote D Azur | France | Aix-en-provence | Bp 241-000 | Bouches-du-rhône | 13100 | engie.***** | 2000 | $134,580,348 | 769 | N/A | N/A | 42981128400034 |
| 45 | Nge Infranet | France | Saint-étienne-du-grès | Parc D'Activites de Laurade | Bouches-du-rhône | 13103 | nge.***** | 2007 | $133,610,876 | 546 | N/A | N/A | 50124162400045 |
| 46 | Batiment Industrie Reseaux | France | Chennevières-sur-marne | 38 Rue Gay Lussac | Val-de-marne | 94430 | bir-reseaux.***** | 1975 | $122,111,806 | 440 | N/A | N/A | 74725106400024 |
| 47 | Ineo Reseaux Sud | France | Vitrolles | 24 Boulevard de L'Europe | Bouches-du-rhône | 13127 | engie-ineo-lab.***** | 2021 | $121,848,103 | 530 | N/A | N/A | 89988941400020 |
| 48 | Ineo Industrie & Tertiaire Est | France | Chevigny-saint-sauveur | 63 Avenue de Tavaux | Côte-d'or | 21800 | N/A | 1996 | $112,975,411 | 616 | N/A | N/A | 40986811400425 |
| 49 | Eiffage Energie Systemes - Nord | France | Lille | 36 Place Cormontaigne | Nord | 59000 | eiffage.***** | 1992 | $111,520,185 | 617 | N/A | N/A | 38878492800011 |
| 50 | Ineo Centre | France | Orléans | Parc D'Activite Des Montees | Loiret | 45100 | cofelyineo-gdfsuez.***** | 2004 | $109,039,097 | 671 | N/A | N/A | 48010803400020 |
| 51 | Ineo Aquitaine | France | Canéjan | 18 Rue Thomas Edison | Gironde | 33610 | engie-ineo.***** | 1997 | $108,133,775 | 632 | N/A | N/A | 41475251901182 |
| 52 | Tso Catenaires | France | Chelles | Chemin Du Corps de Garde | Seine-et-marne | 77500 | tso.***** | 2000 | $107,701,445 | 561 | N/A | N/A | 43245576400014 |
| 53 | Ft Marine | France | Paris | 21 Rue Jasmin | Paris | 75016 | orange.***** | 1999 | $106,533,341 | 298 | N/A | N/A | 42472213000079 |
| 54 | Setelen | France | Andrézieux-bouthéon | Zac les Murons | Loire | 42160 | groupe-scopelec.***** | 2003 | $100,486,849 | 250 | N/A | N/A | 44838953600260 |
| 55 | Eiffage Energie Systemes - Val De Loire | France | Joué-lès-tours | N°6-8 | Indre-et-loire | 37300 | eiffage.***** | 1992 | $99,880,847 | 500 | N/A | N/A | 38877940700013 |
| 56 | Ineo Systrans | France | Neuville-sur-oise | 2 Boulevard Condorcet | Val-d'oise | 95000 | engie-ineo.***** | 1998 | $98,241,823 | 367 | N/A | N/A | 42115915300061 |
| 57 | Eiffage Energie Systemes - Sud Ouest | France | Toulouse | 1 All Pionniers de L Aeropostale | Haute-garonne | 31400 | eiffageenergie.***** | 1992 | $95,468,784 | 250 | N/A | N/A | 38873917900199 |
| 58 | Icart | France | Paris | 189 Rue D Aubervilliers | Paris | 75018 | icart-france.***** | 2000 | $94,195,897 | 528 | N/A | N/A | 42907917100022 |
| 59 | Serpollet | France | Vénissieux | 2 Chemin Du Genie | Rhône | 69200 | serpollet.***** | 1958 | $92,899,652 | 417 | N/A | N/A | 95850628900023 |
| 60 | Ineo Postes Et Centrales | France | Villeurbanne | Le Pheripherique | Rhône | 69100 | ineo-gdfsuez.***** | 1998 | $92,675,069 | 370 | N/A | N/A | 41921284000088 |
| 61 | Eiffage Energie Systemes - Loire Ocean | France | Nantes | Zac Chantrerie Ilot Perverie Erdrerie | Loire-atlantique | 44300 | eiffageenergie.***** | 1964 | $92,654,313 | 454 | N/A | N/A | 31319676800144 |
| 62 | Eiffage Energie Systemes - Indus Nord | France | Verquin | Rte Departementale 937 | Pas-de-calais | 62131 | eiffage.***** | 1992 | $91,820,000 | 446 | N/A | N/A | 38872724000045 |
| 63 | Ineo Atlantique | France | La Chapelle-sur-erdre | Zac de la Gesvrine | Loire-atlantique | 44240 | engie-ineo.***** | 1997 | $91,799,191 | 839 | N/A | N/A | 41479929600077 |
| 64 | Eiffage Energie Systemes - Centre Loire | France | Orléans | Parc Des Chatelliers | Loiret | 45000 | eiffageenergie.***** | 1984 | $89,611,211 | 402 | N/A | N/A | 32900955900108 |
| 65 | Ineo Hauts De France | France | Noyelles-lès-seclin | Zi A de Seclin | Nord | 59139 | engie-ineo.***** | 1991 | $86,992,107 | 646 | N/A | N/A | 38387079700107 |
| 66 | Santerne Nord Tertiaire | France | Beaurains | 7 Rue Angele Richard | Pas-de-calais | 62217 | vinci-energies.***** | 2010 | $86,140,406 | 247 | N/A | N/A | 52886273300037 |
| 67 | Cegelec Portes De Bretagne | France | Pacé | 1-3 - Zac les Touches | Ille-et-vilaine | 35740 | N/A | 2011 | $85,552,221 | 356 | N/A | N/A | 53791623100153 |
| 68 | Ineo Scle Ferroviaire | France | Toulouse | 14 Chemin de Paleficat | Haute-garonne | 31200 | engie-ineo.***** | 2001 | $84,804,707 | 344 | N/A | N/A | 44025316900021 |
| 69 | Xpfibre.cvn | France | Courbevoie | 124 Boulevard de Verdun | Hauts-de-seine | 92400 | xpfibre.***** | 2008 | $84,797,525 | 50 | N/A | N/A | 50809492700060 |
| 70 | Societe De Travaux Electriques Du Bugey | France | Colombier-saugnieu | Airparc, Lyon Saint Exupery Aeroport | Rhône | 69124 | soteb.***** | 1967 | $81,936,537 | 522 | N/A | N/A | 54672007900203 |
| 71 | S.n.c.t.p | France | Dijon | Z.i.n. | Côte-d'or | 21000 | rogermartin.***** | 1970 | $81,928,272 | 364 | N/A | N/A | 01705066700017 |
| 72 | Cegelec Renewable Energies | France | Toulouse | 3 Imp Marcel Chalard | Haute-garonne | 31100 | N/A | 2011 | $80,790,531 | 151 | N/A | N/A | 53791535700090 |
| 73 | E.t.p.m. De Travaux Publics Multiples | France | Arcangues | Zone de Planuya | Pyrénées-atlantiques | 64200 | etpm.***** | 1962 | $80,688,917 | 351 | N/A | N/A | 62272087800033 |
| 74 | Ineo Rhone Alpes Auvergne | France | Lyon | 6 Rue Alexander Fleming | Rhône | 69007 | engie.***** | 1996 | $79,994,810 | 500 | N/A | N/A | 40989912700370 |
| 75 | Semeru | France | Rungis | 54-56-batiment Amsterdam | Val-de-marne | 94150 | semeru.***** | 1980 | $78,961,985 | 377 | N/A | N/A | 32066101000258 |
| 76 | Ineo Urban Transportation Solutions | France | Ivry-sur-seine | 3 Rue Paul Mazy | Val-de-marne | 94200 | N/A | 1998 | $78,124,094 | 345 | N/A | N/A | 41859545000168 |
| 77 | Cielis | France | Paris | 7 Rue Antoine Bourdelle | Paris | 75015 | cielis.***** | 2021 | $77,605,610 | 248 | N/A | N/A | 90013717500023 |
| 78 | Kyntus Reseaux | France | Vélizy-villacoublay | Le Santos Dumont | Yvelines | 78140 | N/A | 2019 | $77,490,706 | 88 | N/A | N/A | 88093890700016 |
| 79 | Bentin SAS | France | Aulnay-sous-bois | 2 Rue Maurice de Broglie | Seine-saint-denis | 93600 | serfim.***** | 1959 | $77,268,715 | 243 | N/A | N/A | 59820110100089 |
| 80 | Cegelec Missenard | France | Clichy | 50 Rue Madame de Sanzillon | Hauts-de-seine | 92110 | cegelec.***** | 2018 | $76,759,635 | 250 | N/A | N/A | 53793400200065 |
| 81 | Eiffage Energie Systemes - Maine Bretagne | France | Cesson-sévigné | 3 A Rue Des Charmilles | Ille-et-vilaine | 35510 | eiffageenergiesystemes.***** | 1992 | $76,137,234 | 406 | N/A | N/A | 38877210500200 |
| 82 | Eiffage Energie Systemes - Infrastructures Est | France | Ludres | 130 Rue Pierre Gilles de Gennes | Meurthe-et-moselle | 54710 | N/A | 1992 | $75,844,522 | 372 | N/A | N/A | 38875870800167 |
| 83 | Btb Genie Electrique & Services | France | Morangis | 8 Avenue Gay Lussac | Essonne | 91420 | btb-ges.***** | 1997 | $74,690,749 | 259 | N/A | N/A | 41489485700039 |
| 84 | Ineo Reseaux Haute Tension | France | Villeurbanne | Le Peripherique | Rhône | 69100 | cofelyineo-gdfsuez.***** | 1996 | $74,623,080 | 223 | N/A | N/A | 40975127800154 |
| 85 | Cegelec Defense | France | Toulouse | 1 Rond-point Du General Eisenhower | Haute-garonne | 31100 | cegelec-defense.***** | 2011 | $74,154,397 | 271 | N/A | N/A | 53791589400035 |
| 86 | Nouvelle Installation Electriques | France | Brie-comte-robert | 3 Allee Francois Arago | Seine-et-marne | 77170 | snie.***** | 1975 | $72,328,321 | 548 | N/A | N/A | 66200746700050 |
| 87 | Amg Facades | France | Valence | 76 Avenue de Marseille | Drôme | 26000 | N/A | 2015 | $71,460,333 | 50 | N/A | N/A | 81232986000033 |
| 88 | Imoptel | France | Ivry-sur-seine | 102 Av Jean Jaures | Val-de-marne | 94200 | axians.***** | 2009 | $71,389,739 | 175 | N/A | N/A | 51388220900051 |
| 89 | Eiffage Energie Systemes - Lorraine Alsace Nord | France | Ludres | 130 Rue Pierre Gilles de Gennes | Meurthe-et-moselle | 54710 | N/A | 1987 | $69,963,258 | 309 | N/A | N/A | 34279309800175 |
| 90 | Eiffage Energie Systemes - Energies Renouvelables Aquitaine | France | Canéjan | 8 Rue Pre Meunier | Gironde | 33610 | franceparebrise.***** | 2017 | $69,219,124 | 104 | N/A | N/A | 83424301600021 |
| 91 | Solewa | France | Le Mans | Zac Ribay Pavillon | Sarthe | 72100 | solewa.***** | 2006 | $68,604,993 | 50 | N/A | N/A | 49076780300185 |
| 92 | La Fibre 85 | France | Val-de-reuil | 2247 Voie de L'Oree | Eure | 27100 | N/A | 2017 | $67,852,791 | 5 | N/A | N/A | 83150046700020 |
| 93 | Courants Elect Forts Et Faible | France | Compiègne | 5 Rue Du Bernago | Oise | 60200 | ceff.***** | 1978 | $67,388,810 | 165 | N/A | N/A | 31203192500026 |
| 94 | Eiffage Energie Systemes - Poitou Charentes | France | Poitiers | Zone Republique 1 | Vienne | 86000 | eiffage.***** | 1975 | $66,475,531 | 317 | N/A | N/A | 30206838200050 |
| 95 | Serfim T.I.C. | France | Vénissieux | 2 Chemin Du Genie | Rhône | 69200 | serfim.***** | 2000 | $64,957,075 | 196 | N/A | N/A | 43190395400029 |
| 96 | Nge Energies Solutions | France | Saint-étienne-du-grès | Parc D'Activites la Laurade | Bouches-du-rhône | 13103 | nge.***** | 2009 | $64,386,593 | 301 | N/A | N/A | 51302782100018 |
| 97 | Vinci Energies International & Systems | France | Montesson | 280 Rue Du 8 Mai 1945 | Yvelines | 78360 | vinci-energies.***** | 2011 | $63,407,280 | 500 | N/A | N/A | 53791549800225 |
| 98 | Triangle Horizon | France | Morée | Ld Villeprovert | Loir-et-cher | 41160 | le-triangle.***** | 2017 | $62,971,011 | 56 | N/A | N/A | 83067900700013 |
| 99 | Eiffage Energie Systemes - Mediterranee | France | Vitrolles | 11 Rue de Lisbonne | Bouches-du-rhône | 13127 | eiffageenergiesystemes.***** | 1992 | $61,922,562 | 226 | N/A | N/A | 38875861700277 |
| 100 | Novintel | France | Rennes | 2 Rue de la Tremblaie | Ille-et-vilaine | 35000 | N/A | 2001 | $60,497,357 | 173 | N/A | N/A | 43508264900185 |