| 1 | Jacops | Belgium | Deerlijk | Nijverheidslaan 31 | West Vlaanderen | 8540 | jacops.***** | 2018 | $248,276,263 | 610 | N/A | N/A | BE0415826627 |
| 2 | Advices For Technical Systems | Belgium | Merelbeke | Karel de Roosestraat 15 | Oost Vlaanderen | 9820 | atsgroep.***** | 2016 | $189,099,563 | 507 | N/A | N/A | BE0425815647 |
| 3 | Eeg | Belgium | Wevelgem | Oostlaan 5 | West Vlaanderen | 8560 | eeg.***** | 2015 | $151,398,477 | 530 | N/A | N/A | BE0442891013 |
| 4 | Eiffage Energie Systemes - Infra | Belgium | Bruxelles | Avenue de Bejar 1b | Bruxelles Capitale | 1120 | paque.***** | 2022 | $141,811,265 | 533 | N/A | N/A | BE0412815271 |
| 5 | Solutions 30 Belgium | Belgium | Antwerpen | Berchemstadionstraat 72 | Antwerpen | 2600 | solutions30.***** | 2009 | $134,472,815 | 129 | N/A | N/A | BE0811303644 |
| 6 | Siemens Energy | Belgium | Beersel | Guido Gezellestraat 125 | Vlaams Brabant | 1654 | new.***** | 2019 | $118,799,794 | 98 | N/A | N/A | BE0737656591 |
| 7 | Constructel Belgium | Belgium | Mons | Rue Des Sandrinettes 31 | Hainaut | 7033 | constructel.***** | 2004 | $111,355,027 | 500 | N/A | N/A | BE0867831185 |
| 8 | Electrotechnique Et Mecanique Putman Freres | Belgium | Anderlecht | Rue Henri-joseph Genesse 30 | Bruxelles Capitale | 1070 | putman.***** | 2016 | $96,499,172 | 322 | N/A | N/A | BE0437709827 |
| 9 | Vinci Facilities Belgium | Belgium | Bruxelles | Avenue Du Port 86c, Internal Postal Box 201 | Bruxelles Capitale | 1000 | vinci-facilities.***** | 2015 | $88,945,353 | 445 | N/A | N/A | BE0508450838 |
| 10 | Cegelec Industry | Belgium | Bruxelles | Avenue Du Bourget 44 | Bruxelles Capitale | 1130 | vinci-energies.***** | 2013 | $87,873,247 | 399 | N/A | N/A | BE0539891310 |
| 11 | Energyvision | Belgium | Gent | Bijenstraat 28 | Oost Vlaanderen | 9051 | energyvision.***** | 2021 | $86,623,133 | 500 | N/A | N/A | BE0563854664 |
| 12 | Decat Energy Technics | Belgium | Veurne | Handelsstraat 15 | West Vlaanderen | 8630 | decat.***** | 2022 | $72,589,202 | 274 | N/A | N/A | BE0416245806 |
| 13 | Perpetum Energy | Belgium | Nazareth | Begoniastraat 34 | Oost Vlaanderen | 9810 | perpetum.***** | 2007 | $64,887,361 | 23 | N/A | N/A | BE0893005754 |
| 14 | Circet Belgium | Belgium | Beringen | Schoebroekstraat 62 | Limburg | 3583 | circet-benelux.***** | 2021 | $61,210,745 | 352 | N/A | N/A | BE0874125297 |
| 15 | Jacops Sud | Belgium | Charleroi | Avenue Jean Mermoz 29, Internal Postal Box D | Hainaut | 6041 | jacops.***** | 2022 | $58,483,420 | 274 | N/A | N/A | BE0429499766 |
| 16 | Dataprojex | Belgium | Enghien | Drève Des Tarins 12 | Hainaut | 7850 | cts-international.***** | 2015 | $53,752,273 | 6 | N/A | N/A | BE0644701095 |
| 17 | Newelec | Belgium | Herstal | Rue Du Fond Des Fourches 23c | Liège | 4041 | newelec.***** | 1985 | $49,039,114 | 217 | N/A | N/A | BE0427027553 |
| 18 | The Energy Circle | Belgium | Hasselt | Diepenbekerweg 11 | Limburg | 3500 | aew.***** | 2009 | $48,222,500 | 180 | N/A | N/A | BE0427122969 |
| 19 | Insaver | Belgium | Houthalen | Centrum-zuid 1199 | Limburg | 3530 | insaver.***** | 2020 | $46,949,917 | 35 | N/A | N/A | BE0848444746 |
| 20 | Antwerp Diesel Repair | Belgium | Antwerpen | Boterhamvaartweg 2dok 138 Unit 8 | Antwerpen | 2030 | caterpillarmarineservice.***** | 1999 | $42,417,149 | 30 | N/A | N/A | BE0467018376 |
| 21 | Belcotec | Belgium | Geel | Kleinhoefstraat 8 | Antwerpen | 2440 | belcotec.***** | 1992 | $41,652,411 | 97 | N/A | N/A | BE0446781010 |
| 22 | Green And Durable Energy | Belgium | Tongeren | Prinsenweg 9 | Limburg | 3700 | gd-energy.***** | 2023 | $40,994,908 | 30 | N/A | N/A | BE0525764942 |
| 23 | Kingspan Light + Air Belgium | Belgium | Sint-niklaas | Anthonis de Jonghestraat 50 | Oost Vlaanderen | 9100 | kingspan.***** | 2023 | $38,895,479 | 161 | N/A | N/A | BE0867414778 |
| 24 | Chubb Somati Systems | Belgium | Aalst | Industrielaan 19 | Oost Vlaanderen | 9320 | somatifie.***** | 2012 | $38,773,155 | 128 | N/A | N/A | BE0844814966 |
| 25 | Opteco | Belgium | Zonhoven | Senator Alfons Jeurissenlaan 1020 | Limburg | 3520 | opteco.***** | 2014 | $38,711,739 | 30 | N/A | N/A | BE0500511189 |
| 26 | Sotrelco | Belgium | La Louvière | Rue de la Croix Du Maïeur 1 | Hainaut | 7110 | sotrelco.***** | 2016 | $38,326,758 | 116 | N/A | N/A | BE0423234655 |
| 27 | Cks | Belgium | Dilsen | Kruishoefstraat 37 | Limburg | 3650 | cks.***** | 2016 | $37,433,879 | 86 | N/A | N/A | BE0472008433 |
| 28 | P.V.S. | Belgium | Hasselt | Kolmenstraat 149 | Limburg | 3512 | pvs4you.***** | 2009 | $34,593,192 | 44 | N/A | N/A | BE0472092862 |
| 29 | Solutions30 Belgium Networks | Belgium | Antwerpen | Berchemstadionstraat 72 | Antwerpen | 2600 | N/A | 2019 | $33,384,351 | 30 | N/A | N/A | BE0898874749 |
| 30 | Dematic | Belgium | Antwerpen | Katwilgweg 3 | Antwerpen | 2050 | dematic.***** | 1947 | $33,287,618 | 142 | N/A | N/A | BE0404636389 |
| 31 | De Witte-Vandecaveye | Belgium | Wingene | Verrekijker 44 | West Vlaanderen | 8750 | dewittevdc.***** | 1983 | $32,722,231 | 111 | N/A | N/A | BE0425283929 |
| 32 | Enersol | Belgium | Herve | Rue de Maestricht 70 | Liège | 4651 | enersol.***** | 2005 | $31,335,837 | 115 | N/A | N/A | BE0874697993 |
| 33 | Ese | Belgium | Veurne | Ondernemingenstraat 9 | West Vlaanderen | 8630 | esegroup.***** | 2019 | $30,781,707 | 37 | N/A | N/A | BE0698971112 |
| 34 | Easykit Group | Belgium | Rotselaar | Wingepark 27, Internal Postal Box C | Vlaams Brabant | 3118 | N/A | 2010 | $30,504,709 | 51 | N/A | N/A | BE0827836701 |
| 35 | Klinkenberg | Belgium | Herstal | Rue Des Alouettes 99 | Liège | 4041 | klinkenberg.***** | 1993 | $29,944,223 | 187 | N/A | N/A | BE0451430476 |
| 36 | Algemene Electrische Ondernemingen Kamiel Verstraete En Zoon | Belgium | Jabbeke | Lettenburgstraat 4 | West Vlaanderen | 8490 | verstraete-ent.***** | 1969 | $28,702,623 | 131 | N/A | N/A | BE0406914703 |
| 37 | Electriciteit Vansteenbrugghe | Belgium | Oudenaarde | Berchemweg 95 | Oost Vlaanderen | 9700 | vansteenbrugghe.***** | 1974 | $28,605,657 | 43 | N/A | N/A | BE0414103886 |
| 38 | Electro Zwijsen | Belgium | Duffel | Adolf Stocletlaan 202 | Antwerpen | 2570 | zwijsen.***** | 2023 | $27,930,266 | 126 | N/A | N/A | BE0431539043 |
| 39 | Jansen Energy Solutions | Belgium | Heusden | Lochtemanweg 122 | Limburg | 3550 | jansenenergysolutions.***** | 2022 | $27,901,629 | 70 | N/A | N/A | BE0451423152 |
| 40 | Nuyts Electriciteitswerken | Belgium | Balen | Puttestraat 24 | Antwerpen | 2490 | nuytsnv.***** | 2019 | $27,723,748 | 66 | N/A | N/A | BE0431505191 |
| 41 | Solora | Belgium | Merelbeke | Neringsweg 2 | Oost Vlaanderen | 9820 | solora.***** | 2014 | $27,510,724 | 44 | N/A | N/A | BE0547830660 |
| 42 | G4s Security Systems | Belgium | Bruxelles | Rue Picard 7, Internal Postal Box 100 | Bruxelles Capitale | 1000 | g4s.***** | 1997 | $26,751,496 | 112 | N/A | N/A | BE0425353908 |
| 43 | Siguesol | Belgium | Ans | Avenue de L'Informatique 9, Internal Postal Box A | Liège | 4432 | action-energie.***** | 2023 | $25,082,589 | 18 | N/A | N/A | BE0898871680 |
| 44 | Heinen | Belgium | Eupen | Rue D'Aix la Chapelle 189 | Liège | 4701 | heinen.***** | 2014 | $25,065,948 | 83 | N/A | N/A | BE0413582957 |
| 45 | Giel | Belgium | Brecht | Vaartkant Rechts 5, Internal Postal Box A | Antwerpen | 2960 | gielbvba.***** | 2008 | $24,626,286 | 23 | N/A | N/A | BE0806979820 |
| 46 | Cegelec Electrical Solutions | Belgium | Bruxelles | Avenue Du Bourget 44 | Bruxelles Capitale | 1130 | itb.***** | 2018 | $24,540,832 | 78 | N/A | N/A | BE0431998111 |
| 47 | Welec | Belgium | Westerlo | Ambachtenstraat 4 | Antwerpen | 2260 | welec.***** | 2012 | $24,412,154 | 94 | N/A | N/A | BE0443800734 |
| 48 | Lenaerts | Belgium | Houthalen | Europark 1086 | Limburg | 3530 | lenaertsnv.***** | 2023 | $24,167,563 | 46 | N/A | N/A | BE0450996946 |
| 49 | Callewaert | Belgium | Harelbeke | Vaarnewijkstraat + 14 | West Vlaanderen | 8530 | callewaert-industrieleelectriciteit.***** | 1974 | $22,941,819 | 42 | N/A | N/A | BE0413836939 |
| 50 | Vanstraelen Sprinkler + Piping | Belgium | Kortessem | Winkelstraat 10, Internal Postal Box B | Limburg | 3720 | vanstraelensprinkler.***** | 2003 | $22,737,078 | 30 | N/A | N/A | BE0480228093 |
| 51 | Varel Security | Belgium | Hasselt | Veldstraat 111 | Limburg | 3511 | varelalarm.***** | 2018 | $22,724,566 | 93 | N/A | N/A | BE0417906385 |
| 52 | Afschrift | Belgium | Ardooie | Gapaardstraat 28 | West Vlaanderen | 8850 | afschrift-nv.***** | 2015 | $22,150,082 | 54 | N/A | N/A | BE0417696846 |
| 53 | Electro- Technisch Installateursbedrijf V. Vandenven | Belgium | Antwerpen | Griffier Schobbenslaan 2a | Antwerpen | 2140 | etivdv.***** | 2009 | $21,437,884 | 39 | N/A | N/A | BE0411106091 |
| 54 | Enerdeal | Belgium | Zaventem | Hermesstraat 2a | Vlaams Brabant | 1930 | enerdeal.***** | 2021 | $21,358,962 | 30 | N/A | N/A | BE0821924550 |
| 55 | Unit-T Field Services | Belgium | Mechelen | Schaliënhoevedreef 20t | Antwerpen | 2800 | unit-t.***** | 2018 | $21,289,655 | 157 | N/A | N/A | BE0695841376 |
| 56 | Bouwonderneming Catteeu | Belgium | Lo | Hogebrugstraat 48 | West Vlaanderen | 8647 | catteeu.***** | 1999 | $20,646,318 | 40 | N/A | N/A | BE0468501486 |
| 57 | De Kinder Hardware | Belgium | Buggenhout | Provincialebaan 136 | Oost Vlaanderen | 9255 | dekinder.***** | 2012 | $20,453,507 | 39 | N/A | N/A | BE0843717183 |
| 58 | Vintia | Belgium | Ieper | Ter Waarde 50 | West Vlaanderen | 8900 | gantner.***** | 2017 | $20,406,575 | 100 | N/A | N/A | BE0440714748 |
| 59 | D'ieteren Energy | Belgium | Ixelles | Rue Du Mail 50 | Bruxelles Capitale | 1050 | volkswagen-commercial-vehicles.***** | 2022 | $19,984,623 | 30 | N/A | N/A | BE0734538339 |
| 60 | Athilex | Belgium | Ardooie | Oude Heirweg 16, Internal Postal Box Oa02 | West Vlaanderen | 8851 | athilex.***** | 2022 | $19,368,941 | 6 | N/A | N/A | BE0785307644 |
| 61 | General Integrations And Electrical Contracting | Belgium | Lokeren | Mosten 8 | Oost Vlaanderen | 9160 | giec.***** | 2023 | $18,699,410 | 77 | N/A | N/A | BE0859772366 |
| 62 | Business Solutions 30 Belgium | Belgium | Antwerpen | Berchemstadionstraat 72 | Antwerpen | 2600 | N/A | 2018 | $17,998,354 | 160 | N/A | N/A | BE0695906605 |
| 63 | Detech | Belgium | Lokeren | Moortelstraat 4 | Oost Vlaanderen | 9160 | detech.***** | 1993 | $17,917,796 | 36 | N/A | N/A | BE0449577677 |
| 64 | Siegers Technics | Belgium | Turnhout | Veedijk 31 | Antwerpen | 2300 | siegers.***** | 2022 | $17,706,342 | 48 | N/A | N/A | BE0417200364 |
| 65 | The Belgian | Belgium | Meise | Slozenstraat 86 | Vlaams Brabant | 1861 | thebelgian.***** | 2021 | $16,886,422 | 59 | N/A | N/A | BE0434631165 |
| 66 | Bemac | Belgium | Ans | Avenue Du Progrès 28 | Liège | 4432 | bemac.***** | 1973 | $16,860,523 | 89 | N/A | N/A | BE0412889507 |
| 67 | Lexar Technics | Belgium | Manage | Rue Des Brasseries 9 | Hainaut | 7170 | lexartechnics.***** | 1995 | $16,836,805 | 46 | N/A | N/A | BE0455867534 |
| 68 | Sgc | Belgium | Deinze | Moorstraat 24 | Oost Vlaanderen | 9850 | switchgearcompany.***** | 2010 | $16,718,768 | 30 | N/A | N/A | BE0823357477 |
| 69 | Elmech-Services | Belgium | Meeuwen | Industrieweg-noord 1114 | Limburg | 3660 | elmech.***** | 1997 | $16,662,194 | 40 | N/A | N/A | BE0459941732 |
| 70 | Eb Bordenbouw | Belgium | Genk | Kompellaan 9 | Limburg | 3600 | ebbnv.***** | 2020 | $16,510,964 | 64 | N/A | N/A | BE0435352727 |
| 71 | De Maerteleire | Belgium | Merelbeke | Industriepark 4b | Oost Vlaanderen | 9820 | demaerteleire.***** | 1998 | $16,075,936 | 37 | N/A | N/A | BE0400136876 |
| 72 | Relaitron | Belgium | Anderlecht | Rue de Birmingham 110 | Bruxelles Capitale | 1070 | relaitron.***** | 1997 | $15,972,462 | 93 | N/A | N/A | BE0407178680 |
| 73 | Sigtraco | Belgium | Zemst | Damstraat 195 | Vlaams Brabant | 1980 | N/A | 2013 | $14,961,470 | 49 | N/A | N/A | BE0433737577 |
| 74 | Cavale Steel Company | Belgium | Houthalen | Centrum-zuid 2050 | Limburg | 3530 | cavale.***** | 2011 | $14,658,422 | 30 | N/A | N/A | BE0838049613 |
| 75 | General Engineering & Technology | Belgium | Westmalle | Antwerpsesteenweg 107 | Antwerpen | 2390 | get.***** | 1965 | $14,404,989 | 86 | N/A | N/A | BE0404641636 |
| 76 | Häfele Belgium | Belgium | Zele | Lindestraat 5 | Oost Vlaanderen | 9240 | hafele.***** | 2003 | $14,012,680 | 25 | N/A | N/A | BE0861691283 |
| 77 | Iveca Technics | Belgium | Oudenaarde | Watermolenstraat 5 | Oost Vlaanderen | 9700 | verstraete-ent.***** | 1937 | $13,465,907 | 46 | N/A | N/A | BE0405265208 |
| 78 | Des-Elec | Belgium | Wielsbeke | Spoorstraat 7 | West Vlaanderen | 8710 | des-elec.***** | 2019 | $13,114,419 | 8 | N/A | N/A | BE0840132143 |
| 79 | Enercon Services Belgium | Belgium | Jabbeke | Vlamingveld 43 | West Vlaanderen | 8490 | enercon.***** | 2008 | $12,868,730 | 103 | N/A | N/A | BE0806283202 |
| 80 | Futech | Belgium | Tessenderlo | Ambachtsstraat 19, Internal Postal Box 2124 | Limburg | 3980 | futech.***** | 2017 | $12,689,222 | 24 | N/A | N/A | BE0808756108 |
| 81 | Ecopuur | Belgium | Gent | Landegemstraat 10 | Oost Vlaanderen | 9031 | ecopuur.***** | 2017 | $12,615,163 | 41 | N/A | N/A | BE0535553727 |
| 82 | Luwa Maintenance | Belgium | Namur | Chaussee de Marche 935 | Namur | 5100 | luwa.***** | 2019 | $12,383,840 | 6 | N/A | N/A | BE0717571950 |
| 83 | Seppi | Belgium | Soumagne | Avenue de la Resistance 530 | Liège | 4630 | kseppi.***** | 2023 | $12,159,492 | 68 | N/A | N/A | BE0422139743 |
| 84 | Vansant J V Electriciteitswerken | Belgium | Westerlo | Nijverheidsstraat 29 | Antwerpen | 2260 | vansant.***** | 1972 | $12,048,511 | 46 | N/A | N/A | BE0412744205 |
| 85 | Fichet Security Solutions Belgium | Belgium | Zaventem | Leuvensesteenweg 555, Internal Postal Box 1 | Vlaams Brabant | 1930 | gunnebo.***** | 2003 | $12,013,842 | 52 | N/A | N/A | BE0421582586 |
| 86 | Ministry Of Solar | Belgium | Ruiselede | Industriestraat 8c | West Vlaanderen | 8755 | ministryofsolar.***** | 2015 | $11,961,443 | 24 | N/A | N/A | BE0639799825 |
| 87 | Enbro | Belgium | Harelbeke | Kortrijksesteenweg 387 | West Vlaanderen | 8530 | enbro.***** | 2013 | $11,767,086 | 30 | N/A | N/A | BE0540921389 |
| 88 | Logi-Technic Infra | Belgium | Jabbeke | Vlamingveld 3a | West Vlaanderen | 8490 | logi-technic.***** | 2005 | $11,674,956 | 103 | N/A | N/A | BE0871395639 |
| 89 | Etablissements Henneaux Frèrers, Entreprises Generales D'electricite | Belgium | Saint-hubert | Rue de Mayavaux 12 | Luxembourg | 6870 | henneaux.***** | 2023 | $10,671,959 | 53 | N/A | N/A | BE0404357762 |
| 90 | Alloson | Belgium | Evere | Chaussee de Louvain 773 | Bruxelles Capitale | 1140 | alloson.***** | 1997 | $9,843,246 | 70 | N/A | N/A | BE0414251960 |
| 91 | Limotec | Belgium | Anzegem | Bosstraat 21 | West Vlaanderen | 8570 | limotec.***** | 1983 | $9,517,613 | 25 | N/A | N/A | BE0425267497 |
| 92 | Luminus Cities | Belgium | Fleurus | Avenue Du Marquis 34 | Hainaut | 6220 | N/A | 2022 | $8,724,809 | 44 | N/A | N/A | BE0715825752 |
| 93 | 802 Networks | Belgium | Kontich | Singel 5 | Antwerpen | 2550 | 802.***** | 2018 | $8,546,810 | 21 | N/A | N/A | BE0713621476 |
| 94 | Entreprise E.R.A. | Belgium | Soumagne | Rue Princesse Astrid 1 | Liège | 4631 | era-entreprise.***** | 2021 | $8,237,254 | 28 | N/A | N/A | BE0430436213 |
| 95 | Onefield ICT | Belgium | Nivelles | Rue Du Commerce 23 | Brabant Wallon | 1400 | N/A | 1997 | $8,192,139 | 51 | N/A | N/A | BE0414348663 |
| 96 | Electriciteitswerken Decaigny Freddy | Belgium | Paardenstad | Flanders-fieldweg 36 | West Vlaanderen | 8790 | edf.***** | 1997 | $7,839,600 | 30 | N/A | N/A | BE0422391349 |
| 97 | Rensol | Belgium | Asse | Poverstraat 204 | Vlaams Brabant | 1731 | rensol.***** | 2011 | $7,284,956 | 33 | N/A | N/A | BE0836734668 |
| 98 | Argona - Eg Elec | Belgium | Turnhout | Koeybleuken 10 | Antwerpen | 2300 | eg-elec.***** | 2004 | $7,067,191 | 11 | N/A | N/A | BE0869821467 |
| 99 | Bonfond-Construction | Belgium | Hannut | Rue Des Granges 5, Internal Postal Box 2 | Liège | 4280 | bonfond-construction.***** | 2011 | $6,886,315 | 6 | N/A | N/A | BE0838419993 |
| 100 | Alarme Incendie Vol Securite | Belgium | Grâce-hollogne | Rue de L'Avenir 5 | Liège | 4460 | aivsecuritec.***** | 1995 | $6,293,977 | 33 | N/A | N/A | BE0455878917 |