| 4021 | Belgium | MYT Toitures | Rue Demoulin, 21, 6120 Marbaix-la-Tour | +32 71 220368 | www.toitures-photovoltaique.be | | |
| 4022 | Belgium | Nadesco bvba | Kabuize 3, 9680 Maarkedal, East Flanders | +32 477 251643 | www.nadesco.be | | |
| 4023 | Belgium | Natural Energy sprl | Rue des Jolis Bois, 32, 6900 Marche-en-Famenne | +32 495 620346 | https://www.natural-energy.be | SMA Solar Technology AG, Fronius International GmbH, SolarEdge Technologies, Ltd. | |
| 4024 | Belgium | Neuville Sprl | Rue de Binche, 64 à, 7390, Quaregnon | +32 65 885285 | www.neuvillesprl.be | | |
| 4025 | Belgium | Nicolas Sprl | Rue Général Desobry 261, B-6600 Noville Bastogne | +32 61 216612 | www.nicolasgf.be | | |
| 4026 | Belgium | Noirfalise Sprl | Chaussée de Wégimont, 73, 4630 Soumagne | +32 4 2640106 | www.noirfalise-solarnrj.be | | |
| 4027 | Belgium | Nova Solar | | +32 47 3924812 | https://novasolar.be | SMA Solar Technology AG, SolarEdge Technologies, Ltd. | |
| 4028 | Belgium | NS Technics BVBA | Nijverheidslaan 5483, 3800 Sint-Truiden | +32 11 696508 | nstechnics.be | | |
| 4029 | Belgium | Naeyaert Solar bvba | Gotevlietstraat 52, 8000 Brugge | +32 50 500550 | www.nlab.be | | |
| 4030 | Belgium | Oliva Technics | Kuilenbroekstraat 1, 3600 Genk | +32 473 703000 | https://www.oliva-technics.be | | |
| 4031 | Belgium | Omniterm Wallonie SPRL | Rue de l'Ancienne Potence 4, 7501, Orcq | +32 69 232840 | www.omnitermwallonie.be | | |
| 4032 | Belgium | Opteco | Senator Alfons Jeurissenlaan 1020, 3520 Zonhoven | +32 11 360436 | opteco.be | SMA Solar Technology AG, Huawei Technologies Co., Ltd. | |
| 4033 | Belgium | Optimus Yacht Technology | Charlottalei 21, 2930, Brasschaat | +32 473 678085 | www.optimusyachttechnology.be | | |
| 4034 | Belgium | Orka | Brusselsesteenweg 159, 9090 Melle | +32 9 3242170 | www.orka-power.com | | |
| 4035 | Belgium | Ovelec Sprl | Chaussée d' Argenteau, 344601 Argenteau | +32 4 3741284 | www.ovelec.be | | |
| 4036 | Belgium | Palm & Schwall AG-SA | Weiherstrasse 61, B-4780 Recht (Saint-Vith) | +32 80 570816 | https://www.palmschwall.be | | |
| 4037 | Belgium | PAWK bvba | Stationsstraat 77, 3370 Vertrijk | +32 4 71188323 | dakwerkenvanderhulst.be | | |
| 4038 | Belgium | Pellens Yvo bvba | Don Boscostraat 83, 3940 Hechtel-Eksel | +32 11 733567 | www.pellensyvo.be | | |
| 4039 | Belgium | PerPetum | Poortakkerstraat 102, 9051 Sint-Denijs-Westrem | +32 9 2457781 | www.perpetum.be | | |
| 4040 | Belgium | PhotonSolar Sprl | Rue Churchill 26, 4624 Romsee (Liège) | +32 4 2859255 | www.photonsolar.be | | |
| 4041 | Belgium | Photovolta | Groenstraat 44, 2547 Lint | +32 485 408844 | www.photovolta-zonnepanelen.be | | |
| 4042 | Belgium | Goeminne Pieter-Jan Electro Service bvba | Kruisstraat 5, 9600 Ronse | +32 476 800520 | www.pjgoeminne.be | | |
| 4043 | Belgium | Plan Group | Gentstraat 100, 8760 Meulebeke | +32 498 151549 | www.plangroup.be | | |
| 4044 | Belgium | Planet-Eco | Ring-Oost 14, 9400 Ninove | +32 800 62626 | www.planet-eco.be | | |
| 4045 | Belgium | PlanetPlus bvba | Brandstraat 64, 9100 Sint-Niklaas | +32 471 600056 | https://www.planetplus.be | | |
| 4046 | Belgium | PLM Immobel | Rue du Pont, 3, B-4280 Hannut | +32 498 540460 | www.plm-immobel.be | | |
| 4047 | Belgium | Pobra Sprl | Chemin de la Guélenne 17, 7060 Soignies | +32 67 553056 | www.pobra.be | | |
| 4048 | Belgium | Poelaert | Rue de Stalle, 256, 1180 Uccle | +32 2 3434413 | https://www.poelaert-peterman.be | | |
| 4049 | Belgium | Polytechnics Peeters NV | Geraardsbergsestraat 72, 1703, Schepdaal, Dilbeek | +32 2 5696197 | www.polytechnics.be | | |
| 4050 | Belgium | Power-Control bvba | Kanaalstraat 3, 8020 Oostkamp | +32 50 300266 | power-control.be | | |