| 3931 | Belgium | Groenehuizen | Heidijk 19, 2340 Vlimmeren, Beerse | +32 474 981004 | groenehuizen.be | | |
| 3932 | Belgium | Group Solar | Brusselsesteenweg 81, BE 9230 Wetteren | +32 9 2231009 | groupsolar.be | | |
| 3933 | Belgium | Heinen S.A. | Rue d’Aix-la-Chapelle 189, 4700 Eupen-Kettenis | +32 87 591010 | www.heinen.eu | | |
| 3934 | Belgium | Helix Solar | Rue des Pieds d’Alouette, 28 Naninne, Namur, 5100 | +32 81 586511 | https://www.facebook.com/HelixSolar/ | | |
| 3935 | Belgium | Heylen | Rue Des Glaces Nationales, 146, B-5060 Sambreville | +32 71 744161 | www.etsheylen.com | | |
| 3936 | Belgium | Hocetec Sprl | Rue de la Bruyère 156, 7021 Havré | +32 65 317300 | www.hocetec.be | | |
| 3937 | Belgium | Houssa Cedric Sprl | Les Basses 47, 5590 Ciney | +32 83 339050 | www.elec-houssa.be | | |
| 3938 | Belgium | Hs-Group bvba | Orchideestraat 29, 9041 Gent – Oostakker | +32 498 648814 | www.hsgroup.be | | |
| 3939 | Belgium | Huby Chauffage | rue Ol'z-Eyos 5 (Zoning Industriel) Malmedy, B-4960 Malmedy | +32 80 679032 | www.huby-chauffage.com | SMA Solar Technology AG, Fronius International GmbH, Danfoss A/S | |
| 3940 | Belgium | IBA Technics | Oplintersesteenweg 578, 3300 Tienen | +32 16 482254 | www.ibatechnics.be | | |
| 3941 | Belgium | Iduna Solutions BVBA | Spechtenberg 46, 1932 Sint-Stevens-Woluwe | +32 494 922483 | www.iduna-solutions.be | SMA Solar Technology AG, Mastervolt International BV, Kostal Solar Electric GmbH | |
| 3942 | Belgium | Ikaros Solar nv | Metropoolstraat 30-32A, 2900 Schoten | +32 3 6416480 | www.ikaros-solar.eu | SMA Solar Technology AG, Danfoss A/S, Delta Energy Systems (Germany) GmbH, Huawei Technologies Co., Ltd. | |
| 3943 | Belgium | IMM – International Montage Maintenance | Chaussée de Waterloo, 1151, B-1180 Brussels | +32 2 7320330 | imm.energy/ | | |
| 3944 | Belgium | Labis Ingelec | Drève Gustave Fache 17, 7700, Mouscron | +32 56 512285 | www.ingelec.be | SMA Solar Technology AG, Fronius International GmbH, SolarEdge Technologies, Ltd. | |
| 3945 | Belgium | Insaver-Luminus | Europark 1008, 3530 Houthalen-Helchteren | +32 11 812088 | insaver.be | SMA Solar Technology AG, SolarEdge Technologies, Ltd., Huawei Technologies Co., Ltd. | |
| 3946 | Belgium | Install Flow | Rue Sur La Fontaine 82, 4000 Liege | +32 4 2295530 | installflow.com | | |
| 3947 | Belgium | Installatiebedrijf Maes | Snaaskerkestraat 74, 8470 Gistel | +32 495 532599 | installatiebedrijfmaes.be | | |
| 3948 | Belgium | Installatiebedrijf van den Berg | Meerseweg 183, 2322 Hoogstraten | +32 3 3157531 | www.vdberg.be | | |
| 3949 | Belgium | Intelligent Wonen | Wulleputstraat 52b, 8810 Lichtervelde, West-Vlaanderen | +32 475 346737 | www.intelligentwonen.be | | |
| 3950 | Belgium | Intellisol NV | Maastrichtersteenweg 163, 3680 Maaseik | +32 89 355300 | intellisol.be | | |
| 3951 | Belgium | Intérieur et Chaleur | Avenue Deli XL, 2, B-6530, Thuin | +32 71 331298 | www.interieur-chaleur.be | | |
| 3952 | Belgium | Iso-Bouw | Mariakerksesteenweg 142, 9031 Gent-Drongen | +32 9 2312801 | https://www.iso-bouw.be | | |
| 3953 | Belgium | IZEN Energy Systems | Hoeksken 56, 2275 Lille | +32 14 558319 | www.izen.eu | | |
| 3954 | Belgium | Johan Demey | Kerkhofstraat 11, 1651, Beersel Lot, Beersel | +32 471 766229 | www.jdemey.be | | |
| 3955 | Belgium | Jany Gofflot S.p.r.l | Chaussée de Recogne 18, 6840, Neufchateau | +32 61 279295 | www.janygofflot.be | Suntech Power Co., Ltd., Canadian Solar Inc. | SMA Solar Technology AG |
| 3956 | Belgium | Jean-Luc Nix Sprl | Cour Beaupré 236, 4654 Herve | +32 496 564967 | https://www.toiture-nix.be | | |
| 3957 | Belgium | Jeffrey Groeninckx Bvba | Hof ter Eeken 3, 9090, Melle | +32 495 180808 | jeffreygroeninckx.be | | |
| 3958 | Belgium | Jery Remy sprl | Chée de Chokier 150, 4400 Flémalle | +32 4 2752045 | www.jery-remy.be | | |
| 3959 | Belgium | JJ Burnotte | Hébronval 25, B-6690 Vielsalm | +32 804 10040 | www.jjburnotte.be | | |
| 3960 | Belgium | JL Systems | Bremstraat 12, 3511 Kuringen | +32 472 492040 | www.jlonline.be | | |