| 1 | Van Wijnen Smart Assembly B.V. | Netherlands | Heerenveen | K R Poststraat 101 | Friesland | 8441 EN | N/A | 2021 | $1,551,998,741 | 6 | N/A | N/A | 72236434 |
| 2 | Van Wijnen Smart Assembly 2.0 B.V. | Netherlands | Heerenveen | K R Poststraat 101 | Friesland | 8441 EN | N/A | 2021 | $1,551,998,741 | 6 | N/A | N/A | 82417725 |
| 3 | Itn Installatietechniek B.V. | Netherlands | Ede | Maxwellstraat 49 C 1 | Gelderland | 6716 BX | itn.***** | 2022 | $1,086,505,927 | 140 | N/A | N/A | 09045446 |
| 4 | Van Gelder Verkeerstechniek B.V. | Netherlands | Nijkerk | Sluiswachter 18 | Gelderland | 3861 SN | vangelder.***** | 2011 | $1,077,431,843 | 125 | N/A | N/A | 54036240 |
| 5 | Tm Techniek B.V. | Netherlands | Woudenberg | Voskuilerweg 49 A | Utrecht | 3931 MV | tm-techniek.***** | 2023 | $1,077,431,843 | 30 | N/A | N/A | 32108616 |
| 6 | Grid Control Systems B.V. | Netherlands | Beilen | Julianastraat 11 | Drenthe | 9431 BG | voskuilenindustrie.***** | 2025 | $1,077,431,843 | 4 | N/A | N/A | 76974154 |
| 7 | Dura Vermeer Divisie Techniek B.V. | Netherlands | Utrecht | Hertogswetering 157 | Utrecht | 3543 AS | duravermeer.***** | 2021 | $1,042,741,278 | 30 | N/A | N/A | 82982546 |
| 8 | Dura Vermeer Techniek B.V. | Netherlands | Utrecht | Hertogswetering 157 | Utrecht | 3543 AS | duravermeer.***** | 2021 | $1,042,741,278 | 90 | N/A | N/A | 82982511 |
| 9 | Cegelec Industry B.V. | Netherlands | Dordrecht | Laan van Europa 450 | Zuid-holland | 3317 DB | vinci-facilities.***** | 2015 | $1,004,371,396 | 265 | N/A | N/A | 56833695 |
| 10 | Verkerk Groep B.V. | Netherlands | Zwijndrecht | Molenvliet 1 | Zuid-holland | 3335 LH | verkerkgroep.***** | 2017 | $1,004,371,396 | 210 | N/A | N/A | 68740883 |
| 11 | Schilt Bedrijven B.V. | Netherlands | Vianen | Energieweg 29 | Utrecht | 4231 DJ | schiltbedrijven.***** | 2022 | $1,004,371,396 | 99 | N/A | N/A | 23044288 |
| 12 | Rh Marine Netherlands B.V. | Netherlands | Schiedam | Jan Evertsenweg 2 | Zuid-holland | 3115 JA | rhmarine.***** | 2016 | $1,004,371,396 | 373 | N/A | N/A | 24193093 |
| 13 | Bakker Sliedrecht Electro Industrie B.V. | Netherlands | Sliedrecht | Leeghwaterstraat 55 -59 | Zuid-holland | 3364 AE | bakkersliedrecht.***** | 1996 | $1,004,371,396 | 220 | N/A | N/A | 23040872 |
| 14 | Unica Fire Safety B.V. | Netherlands | Nijkerk | De Beek 18 | Gelderland | 3871 MS | unica.***** | 2014 | $990,626,964 | 100 | N/A | N/A | 59207426 |
| 15 | Van Kempen Koudetechniek B.V. | Netherlands | Tiel | Spoorstraat 14 | Gelderland | 4001 CN | vankempen-tiel.***** | 2020 | $990,626,964 | 47 | N/A | N/A | 11025995 |
| 16 | Boele Fire Protection B.V. | Netherlands | Ede | Radonstraat 8 | Gelderland | 6718 WS | bfp.***** | 2018 | $990,626,964 | 17 | N/A | N/A | 27154660 |
| 17 | Unica Access & Security B.V. | Netherlands | Barendrecht | Lubeck 1 | Zuid-holland | 2993 LK | nsecure.***** | 2017 | $990,626,964 | 133 | N/A | N/A | 24255898 |
| 18 | Unica Fire Detection B.V. | Netherlands | Zoetermeer | Huygensstraat 5 | Zuid-holland | 2721 LT | unicafiredetection.***** | 2024 | $990,626,964 | 112 | N/A | N/A | 92736726 |
| 19 | Unica Datacenters B.V. | Netherlands | Amsterdam | Gyroscoopweg 90 | Noord-holland | 1042 AX | unica.***** | 2001 | $990,626,964 | 75 | N/A | N/A | 06022065 |
| 20 | Unica Energy Solutions B.V. | Netherlands | Nijkerk | De Wel 15 | Gelderland | 3871 MT | unica.***** | 2001 | $990,626,964 | 25 | N/A | N/A | 17051074 |
| 21 | Pranger-Rosier Installaties B.V. | Netherlands | Dokkum | Beurtvaart 2 | Friesland | 9101 RB | pranger-rosier.***** | 1988 | $990,626,964 | 198 | N/A | N/A | 01035609 |
| 22 | Installatiebedrijf Otte B.V. | Netherlands | Sneek | Edisonstraat 12 | Friesland | 8606 JJ | otte-installaties.***** | 2021 | $990,626,964 | 33 | N/A | N/A | 01031372 |
| 23 | Hanab Telecom Connect B.V. | Netherlands | Apeldoorn | Kanaal Zuid 286 | Gelderland | 7364 AJ | wijzijnblauwr.***** | 2016 | $873,885,402 | 5 | N/A | N/A | 65524551 |
| 24 | Dubotechniek B.V. | Netherlands | Zaltbommel | Valeton 10 | Gelderland | 5301 LW | dubotechniek.***** | 2021 | $873,885,402 | 37 | N/A | N/A | 30273254 |
| 25 | Hanab Installation Technology B.V. | Netherlands | Vianen | Lange Dreef 7 | Utrecht | 4131 NJ | homij.***** | 2023 | $873,885,402 | 500 | N/A | N/A | 30020926 |
| 26 | Frimex Installatie B.V. | Netherlands | Nieuwerkerk Aan den Ijssel | Grote Esch 1160 | Zuid-holland | 2841 MJ | frimex.***** | 2019 | $861,844,158 | 182 | N/A | N/A | 20027714 |
| 27 | Electro-Technisch Bureau Cas Sombroek B.V. | Netherlands | Volendam | Julianaweg 204 | Noord-holland | 1131 DL | cassombroek.***** | 2022 | $861,844,158 | 111 | N/A | N/A | 36033764 |
| 28 | Van Dijnsen Installatiewerken B.V. | Netherlands | Breda | Heerbaan 100 | Noord-brabant | 4817 NL | vandijnsen.***** | 2022 | $861,844,158 | 102 | N/A | N/A | 20033969 |
| 29 | Klaver Klimaattechniek B.V. | Netherlands | De Goorn | Braken 83 | Noord-holland | 1713 GC | giant.***** | 2022 | $861,844,158 | 92 | N/A | N/A | 37101804 |
| 30 | Giant Security B.V. | Netherlands | Heerhugowaard | Delta 6 | Noord-holland | 1704 EE | giant.***** | 2009 | $861,844,158 | 54 | N/A | N/A | 37096953 |
| 31 | Koomen Installatie B.V. | Netherlands | Diemen | Verrijn Stuartweg 4 | Noord-holland | 1112 AX | koomeninstallatie.***** | 2023 | $861,844,158 | 53 | N/A | N/A | 33021907 |
| 32 | Wesotronic B.V. | Netherlands | Barendrecht | Ebweg 10 | Zuid-holland | 2991 LT | wesotronic.***** | 2016 | $861,844,158 | 47 | N/A | N/A | 24187188 |
| 33 | Velgsib Installatietechniek B.V. | Netherlands | Stadskanaal | Steenhouwer 6 | Groningen | 9502 ET | velgsib.***** | 2023 | $861,844,158 | 42 | N/A | N/A | 02096883 |
| 34 | Heluto B.V. | Netherlands | Havelte | Dieverbrug 8 | Drenthe | 7981 AE | heluto.***** | 2020 | $861,844,158 | 37 | N/A | N/A | 04025884 |
| 35 | Nooter Technische Installaties B.V. | Netherlands | Zwolle | Paxtonstraat 8 | Overijssel | 8013 RP | nooter.***** | 2021 | $861,844,158 | 36 | N/A | N/A | 05021556 |
| 36 | Veldhuis Installatietechniek B.V. | Netherlands | Emmeloord | Escudo 3 E | Flevoland | 8305 BM | veldhuiselektrotechniek.***** | 2016 | $861,844,158 | 35 | N/A | N/A | 39065904 |
| 37 | Promteg B.V. | Netherlands | Uitgeest | Westerwerf 22 A | Noord-holland | 1911 JA | smart2cloud.***** | 2024 | $861,844,158 | 30 | N/A | N/A | 37127863 |
| 38 | Schreuder B.V. | Netherlands | Zwolle | Paxtonstraat 8 | Overijssel | 8013 RP | schreuderbv.***** | 2022 | $861,844,158 | 27 | N/A | N/A | 68528213 |
| 39 | Benschop Installatietechniek B.V. | Netherlands | Lopik | Dorp 284 | Utrecht | 3405 BL | benschopinstallatietechniek.***** | 2024 | $861,844,158 | 26 | N/A | N/A | 30156755 |
| 40 | Elektrotechnisch Installatiebureau Basro B.V. | Netherlands | Berkel en Rodenrijs | Weg en Land 21 | Zuid-holland | 2661 DC | basro.***** | 2008 | $861,844,158 | 26 | N/A | N/A | 24164221 |
| 41 | Installatiebedrijf De Leeuw Beneden-Leeuwen N.V. | Netherlands | Beneden-leeuwen | Expeditieweg 16 | Gelderland | 6657 KL | installatiebedrijfdeleeuw.***** | 2022 | $861,844,158 | 26 | N/A | N/A | 11065444 |
| 42 | Blankespoor B.V. | Netherlands | Putten | Handelsweg 10 | Gelderland | 3881 LS | blankespoorbv.***** | 2020 | $861,844,158 | 25 | N/A | N/A | 08723081 |
| 43 | Electro-Technisch Buro JOH. Ten Brinke Ijsselmuiden B.V. | Netherlands | Kampen | Spoordwarsstraat 12 | Overijssel | 8271 RD | johtenbrinke.***** | 2013 | $861,844,158 | 24 | N/A | N/A | 05050641 |
| 44 | Coumans Installaties B.V. | Netherlands | Beek | Kelmonderstraat 69 | Limburg | 6191 RD | coumansinstallaties.***** | 2024 | $861,844,158 | 23 | N/A | N/A | 14050070 |
| 45 | Koelvisie B.V. | Netherlands | Drachten | Kelvinlaan 5 B | Friesland | 9207 JB | koelvisie.***** | 2022 | $861,844,158 | 23 | N/A | N/A | 01182713 |
| 46 | Van Aalst Elektro Breda B.V. | Netherlands | Breda | Iabc 5260 | Noord-brabant | 4814 RD | vanaalstelektro.***** | 2023 | $861,844,158 | 19 | N/A | N/A | 54964245 |
| 47 | Giant Telcom B.V. | Netherlands | De Goorn | Dobber 1 | Noord-holland | 1713 GK | giant.***** | 2022 | $861,844,158 | 19 | N/A | N/A | 37096954 |
| 48 | Van Puijenbroek Installaties B.V. | Netherlands | Alphen | Stationstraat 67 | Noord-brabant | 5131 BM | vanpuijenbroek.***** | 2025 | $861,844,158 | 19 | N/A | N/A | 18029484 |
| 49 | Dg Beveiliging En Communicatie B.V. | Netherlands | Veendam | Stationsstraat 4 | Groningen | 9641 KE | dgbeveiling.***** | 2023 | $861,844,158 | 18 | N/A | N/A | 02071900 |
| 50 | Van Aalst Elektro Service & Onderhoud B.V. | Netherlands | Oss | Batavenweg 9 | Noord-brabant | 5349 BC | vanaalstelektro.***** | 2021 | $861,844,158 | 16 | N/A | N/A | 17050797 |
| 51 | Installatietechniek Raalte B.V. | Netherlands | Raalte | Boeierstraat 7 | Overijssel | 8102 HS | installatietechniekraalte.***** | 2019 | $861,844,158 | 13 | N/A | N/A | 38019218 |
| 52 | Installatie Techniek Zeeland B.V. | Netherlands | Terneuzen | Communicatielaan 25 | Zeeland | 4538 BV | it-zld.***** | 2023 | $861,844,158 | 10 | N/A | N/A | 22058281 |
| 53 | Beers Elektrotechniek B.V. | Netherlands | Berkel en Rodenrijs | Morsestraat 20 | Zuid-holland | 2652 XG | dewaerd.***** | 2019 | $861,844,158 | 8 | N/A | N/A | 24255771 |
| 54 | Installatietechniek Raalte Materieel B.V. | Netherlands | Raalte | Boeierstraat 7 | Overijssel | 8102 HS | installatietechniekraalte.***** | 2019 | $861,844,158 | 5 | N/A | N/A | 08214914 |
| 55 | Koomen Installatie Service En Projecten B.V. | Netherlands | Diemen | Verrijn Stuartweg 4 | Noord-holland | 1112 AX | koomeninstallatie.***** | 2023 | $861,844,158 | 5 | N/A | N/A | 50695436 |
| 56 | Van Aalst Elektro Tiel B.V. | Netherlands | Breda | Iabc 5260 | Noord-brabant | 4814 RD | vanaalstelektro.***** | 2021 | $861,844,158 | 3 | N/A | N/A | 51577895 |
| 57 | Den Doorn Installatieprojecten B.V. | Netherlands | Almkerk | Distributiestraat 23 | Noord-brabant | 4283 JN | dendoorn.***** | 2019 | $861,844,158 | 63 | N/A | N/A | 18126349 |
| 58 | Klein Poelhuis Woningbouw B.V. | Netherlands | Hengelo | Hassinkweg 19 | Overijssel | 7556 BV | N/A | 2023 | $861,844,158 | 55 | N/A | N/A | 90845609 |
| 59 | Sankomij Installatietechniek B.V. | Netherlands | Veldhoven | De Plank 91 | Noord-brabant | 5504 EE | sankomij.***** | 2024 | $861,844,158 | 52 | N/A | N/A | 17065532 |
| 60 | Heating Service Installatietechniek B.V. | Netherlands | Bodegraven | Weijland 70 | Zuid-holland | 2415 BD | heatingservice.***** | 2023 | $861,844,158 | 36 | N/A | N/A | 29028953 |
| 61 | Van Heugten Gemert B.V. | Netherlands | Gemert | Dieze 8 | Noord-brabant | 5422 VS | eurobad.***** | 2000 | $861,844,158 | 35 | N/A | N/A | 17062516 |
| 62 | Sankomij Service B.V. | Netherlands | Veldhoven | De Plank 91 | Noord-brabant | 5504 EE | sankomij.***** | 2024 | $861,844,158 | 34 | N/A | N/A | 84174285 |
| 63 | Installatietechniek Raalte Projecten B.V. | Netherlands | Raalte | Boeierstraat 7 | Overijssel | 8102 HS | installatietechniekraalte.***** | 2019 | $861,844,158 | 33 | N/A | N/A | 08214907 |
| 64 | Den Doorn Installatiebeheer B.V. | Netherlands | Almkerk | Distributiestraat 23 | Noord-brabant | 4283 JN | dendoorn.***** | 2019 | $861,844,158 | 28 | N/A | N/A | 18050692 |
| 65 | Bijlstra Installaties B.V. | Netherlands | Dokkum | Hogedijken 22 | Friesland | 9101 WV | bijlstra-installaties.***** | 2021 | $861,844,158 | 25 | N/A | N/A | 01076935 |
| 66 | Heluto Service B.V. | Netherlands | Havelte | Dieverbrug 8 | Drenthe | 7981 AE | heluto.***** | 2020 | $861,844,158 | 23 | N/A | N/A | 04019891 |
| 67 | Hillsafety B.V. | Netherlands | Alphen Aan den Rijn | Ondernemingsweg 2 | Zuid-holland | 2404 HN | hillsafety.***** | 2009 | $861,844,158 | 18 | N/A | N/A | 28108625 |
| 68 | Roycon Installaties B.V. | Netherlands | Budel | Rondven 59 | Noord-brabant | 6026 PX | roycon.***** | 2011 | $861,844,158 | 15 | N/A | N/A | 17068484 |
| 69 | Elektro Techniek Raalte B.V. | Netherlands | Raalte | Boeierstraat 7 | Overijssel | 8102 HS | elektrotechniekraalte.***** | 2019 | $861,844,158 | 9 | N/A | N/A | 64000249 |
| 70 | Aa Installatietechniek Nederland B.V. | Netherlands | Oud-beijerland | Veerweg 1 A | Zuid-holland | 3281 LX | aatech.***** | 2022 | $861,844,158 | 49 | N/A | N/A | 24301559 |
| 71 | Kemtec B.V. | Netherlands | Budel | Randweg-zuid 2 | Noord-brabant | 6021 PW | kemtec.***** | 2022 | $861,844,158 | 47 | N/A | N/A | 17066536 |
| 72 | Van Der Molen Techniek B.V. | Netherlands | Enschede | Auke Vleerstraat 165 | Overijssel | 7547 PH | vd-molen.***** | 2022 | $861,844,158 | 32 | N/A | N/A | 06069667 |
| 73 | Feenstra En Van Goor Installaties En Sanitair B.V. | Netherlands | Wormer | Eendrachtstraat 8 | Noord-holland | 1531 DV | feenstraenvangoor.***** | 2023 | $861,844,158 | 29 | N/A | N/A | 35010996 |
| 74 | D En W Elektrotechniek B.V. | Netherlands | Veendam | Stationsstraat 4 | Groningen | 9641 KE | denwelektrotechniek.***** | 2022 | $861,844,158 | 21 | N/A | N/A | 63740869 |
| 75 | Kees Smit En Zonen Elektra B.V. | Netherlands | Volendam | Bellstraat 3 | Noord-holland | 1131 JV | smitelektra.***** | 2022 | $861,844,158 | 132 | N/A | N/A | 36000508 |
| 76 | P. De Vries Installatietechnieken B.V. | Netherlands | Leeuwarden | Polluxweg 13 | Friesland | 8938 AZ | pdevries.***** | 2021 | $861,844,158 | 100 | N/A | N/A | 01087105 |
| 77 | Probis Nederland B.V. | Netherlands | Beilen | Ossebroeken 34 | Drenthe | 9411 VR | probisnederland.***** | 2025 | $861,844,158 | 54 | N/A | N/A | 01131171 |
| 78 | Installatiebedrijf Hoekstra Heerenveen B.V. | Netherlands | Heerenveen | Mercurius 17 | Friesland | 8448 GX | hoekstra-drachten.***** | 2019 | $861,844,158 | 52 | N/A | N/A | 01047674 |
| 79 | Van Aalst Elektro B.V. | Netherlands | Oss | Batavenweg 9 | Noord-brabant | 5349 BC | vanaalstelektro.***** | 2021 | $861,844,158 | 35 | N/A | N/A | 16044112 |
| 80 | Klein Poelhuis Projecten B.V. | Netherlands | Groenlo | Koningslinde 10 | Gelderland | 7131 MP | kleinpoelhuis.***** | 1993 | $861,844,158 | 35 | N/A | N/A | 09053580 |
| 81 | Van Dijnsen Beveiligingen B.V. | Netherlands | Breda | Heerbaan 100 | Noord-brabant | 4817 NL | vandijnsen.***** | 2022 | $861,844,158 | 34 | N/A | N/A | 20035228 |
| 82 | Technisch Installatiebedrijf Toonen B.V. | Netherlands | Wijchen | Pieter Zeemanstraat 29 | Gelderland | 6603 AV | toonen-installatietechniek.***** | 2022 | $861,844,158 | 29 | N/A | N/A | 09150291 |
| 83 | Klaver Giant Alkmaar B.V. | Netherlands | Alkmaar | Laanenderweg 3 | Noord-holland | 1812 PW | giant.***** | 2022 | $861,844,158 | 24 | N/A | N/A | 37112080 |
| 84 | Lks Installatietechniek B.V. | Netherlands | Asten | Planker 16 | Noord-brabant | 5721 VG | lksinstallatietechniek.***** | 2024 | $861,844,158 | 16 | N/A | N/A | 84174293 |
| 85 | Hulstflier Installateurs Dordrecht B.V. | Netherlands | Dordrecht | Calandstraat 5 | Zuid-holland | 3316 EA | hulstflier.***** | 2025 | $861,844,158 | 13 | N/A | N/A | 54029708 |
| 86 | Property Care Nederland B.V. | Netherlands | Hoofddorp | Aalsmeerderdijk 158 B | Noord-holland | 1438 AX | propertycare.***** | 2024 | $861,844,158 | 11 | N/A | N/A | 57388628 |
| 87 | Basro Beveiligingstechniek B.V. | Netherlands | Berkel en Rodenrijs | Weg en Land 21 | Zuid-holland | 2661 DC | basro.***** | 2008 | $861,844,158 | 10 | N/A | N/A | 24179558 |
| 88 | Koomen Installatie Onderhoud B.V. | Netherlands | Diemen | Verrijn Stuartweg 4 | Noord-holland | 1112 AX | koomeninstallatie.***** | 2023 | $861,844,158 | 5 | N/A | N/A | 84494751 |
| 89 | Coumans Installaties Weert B.V. | Netherlands | Beek | Kelmonderstraat 69 | Limburg | 6191 RD | coumansinstallaties.***** | 2024 | $861,844,158 | 5 | N/A | N/A | 14105570 |
| 90 | Technisch Advies- En Installatiebureau Warmtebouw Utrecht B.V. | Netherlands | Utrecht | Middenwetering 1 | Utrecht | 3543 AR | warmtebouw.***** | 2000 | $635,527,135 | 288 | N/A | N/A | 30045710 |
| 91 | Nr Cooling Services B.V. | Netherlands | Ridderkerk | Glasblazerstraat 13 | Zuid-holland | 2984 BL | nrcooling.***** | 2019 | $635,527,135 | 25 | N/A | N/A | 63781972 |
| 92 | Geotherm Energy Systems B.V. | Netherlands | Bunschoten | Zuidwenk 45 A | Utrecht | 3751 CB | geothermes.***** | 2008 | $635,527,135 | 14 | N/A | N/A | 08076154 |
| 93 | Aeroflex Benelux B.V. | Netherlands | Lelystad | Poseidonweg 39 | Flevoland | 8239 DK | aeroflex.***** | 1997 | $635,527,135 | 5 | N/A | N/A | 39054401 |
| 94 | Heinen & Hopman Installaties B.V. | Netherlands | Bunschoten | Zuidwenk 45 | Utrecht | 3751 CB | heinenhopmaninstallaties.***** | 2017 | $635,527,135 | 40 | N/A | N/A | 67816959 |
| 95 | Gooiland Elektro B.V. | Netherlands | Hilversum | Franciscusweg 221 A | Noord-holland | 1216 SE | gooiland-elektro.***** | 2007 | $635,527,135 | 69 | N/A | N/A | 32033463 |
| 96 | TBK Klimaat B.V. | Netherlands | Hoofddorp | Sloterweg 346 | Noord-holland | 1171 VJ | heating-partners.***** | 2021 | $516,771,331 | 8 | N/A | N/A | 70698910 |
| 97 | Modutech B.V. | Netherlands | Hoofddorp | Sloterweg 346 | Noord-holland | 1171 VJ | modutechbv.***** | 2024 | $516,771,331 | 5 | N/A | N/A | 83292128 |
| 98 | Rendon Voorburg B.V. | Netherlands | Delft | Poortweg 8 | Zuid-holland | 2612 PA | rendon.***** | 2017 | $516,771,331 | 51 | N/A | N/A | 27067460 |
| 99 | Hemubo E-Techniek B.V. | Netherlands | Almere | Damsluisweg 1 | Flevoland | 1332 EA | hemubo.***** | 1999 | $444,390,019 | 30 | N/A | N/A | 39071291 |
| 100 | Building Services Amersfoort B.V. | Netherlands | Amersfoort | Xenonweg 45 | Utrecht | 3812 SZ | buildingservices.***** | 2015 | $402,248,553 | 500 | N/A | N/A | 64039390 |