| WSE OÜ | Other | www.roccahaldus.ee | C-51 |
| VRV Metals | Construction materials | www.vrvmetals.lv | C-78 |
| WoodFin Group Oy | Construction materials | www.woodfin.fi | C-94 |
| Viking Window AS | Doors and windows | www.viking.ee | C-02 |
| Vihmaveerennid OÜ | Roof and facade | www.vihmaveerennid.ee | C-14 |
| Vesmerk OÜ | | | C-41 |
| Venditehnik OÜ | Heating, ventilation, air conditioning and sanitary | www.venditehnik.ee | D-13 |
| VELUX Eesti OÜ | Doors and windows | www.velux.ee | C-16 |
| Wasteman OÜ | Tools, equipment, machinery and scaffolding. | www.wasteman.ee, www.ekonteinerirent.ee | V-02 |
| Warmotech – Anderus UAB | Doors and windows | www.warmotech.lt | C-37 |
| Warm Cool OÜ | Construction materials | www.warmcool.ee | C-92 |
| VA Systems OÜ | Automation, access control and security | www.vas.ee | C-70 |
| Tööinspektsioon | Other | www.ti.ee | B-20 |
| Thermoarena OÜ | Construction materials. Roof and facade. Outdoor, garden and terrace. | www.thermoarena.com | C-98 |
| Systemair AS | Heating, ventilation, air conditioning and sanitary | www.systemair.ee | D-11 |
| Säästvad Ehituslahendused OÜ | Finishing materials | www.ehituslahendused.ee; www.meistri.ee | C-53 |
| Sungate Group OÜ | Automation, access control and security | www.sungate.ee | V-07 |
| VBH Estonia OÜ | Doors and windows | www.vbh.ee; www.vbh24.ee | C-05 |
| Tenter OÜ | Building constructions | www.tenter.ee | C-46 |
| Sundecor | Interior design | www.sundecor.ee | C-36 |
| Sunair Ventilatsiooniseadmed | Heating, ventilation, air conditioning and sanitary | www.sunair.ee; www.puzer.ee | D-04 |
| Stipro SIA | Construction materials | www.stipro.lv | C-52 |
| Stelo OÜ | Heating, ventilation, air conditioning and sanitary | www.stelo.ee | D-02 |
| Soome Maja OÜ | Prefabrication and modular constructions | www.soomemaja.ee | C-33 |
| Solman SIA | Heating, ventilation, air conditioning and sanitary | www.solmanlv.lv | C-30 |
| Sanomar Kinnisvarahooldus OÜ | Other | www.sanomar.ee | V-06 |
| Rubex OÜ | | www.terassiplaadid.ee | C-18 |
| Rotho Blaas SRL | Tools, equipment, machinery and scaffolding. | www.rothoblaas.com | C-71 |
| Rohe Auto AS | Tools, equipment, machinery and scaffolding. | www.roheauto.ee | C-50 |
| RKM Team OÜ | Tools, equipment, machinery and scaffolding. | www.fortal.ee | C-95 |
| Reval Energy OÜ | Lighting and electrical systems | www.ledhouse.ee; www.revalenergy.com | D-26 |
| Resthunt OÜ | Finishing materials | www.resthunt.ee | C-53 |
| SigmaSystems OÜ | Heating, ventilation, air conditioning and sanitary | www.sigmasystems.ee | D-17 |
| Spraytec OÜ | Tools, equipment, machinery and scaffolding. | www.spraytec.ee | C-42 |
| Smart Home Systems OÜ | Automation, access control and security | www.smart-home.ee | C-63 |
| Sindelkatuse OÜ | Roof and facade. Finishing materials. | www.sindelkatus.ee | C-64 |
| Silmani Elekter AS | Lighting and electrical systems | www.silman.ee | C-13 |
| Schbot Robotics OÜ | Other | www.schbot.ee | C-09 |
| Saunalava OÜ | Interior design | www.saunalava.ee | D-14 |
| Quanttos Oy | Tools, equipment, machinery and scaffolding. | www.jcad.io | C-29 |
| Puistemees OÜ | Construction materials | www.puistemees.ee | C-74 |
| Puhastusimport OÜ | Other | www.puhastusimport.ee | C-75 |
| Prof Group Eesti OÜ | Other | www.prof-group.ee | B-02 |
| Picapac OÜ | Automation, access control and security | www.picapac.ee | C-43 |
| Neru OÜ | Stairs and balustrades | | C-20 |
| MUUW Estonia OÜ | Construction materials | www.muuw.eu | B-13 |
| Meta-Regalbau Gmbh | Tools, equipment, machinery and scaffolding. | www.meta-online.ee | C-19 |
| Meridein OÜ / Droon.ee | Other | www.droon.ee | C-91 |
| Maksu- ja tolliamet | Other | www.emta.ee | B-18 |
| Luugid.ee | | www.luugid.ee | C-85 |
| Luminance OÜ / Denkirs | Lighting and electrical systems | www.denkirs.ee | C-12 |
| Päästeamet | Other | www.rescue.ee | B-24 |
| Pureva OÜ | Tools, equipment, machinery and scaffolding. | www.pureva.ee | C-60 |
| Pumeko AS | Doors and windows | www.pumeko.ee | C-01 |
| Priore OÜ | Outdoor, garden and terrace | www.priore.ee | B-16 |
| Mirlex OÜ | Doors and windows | www.mirlex.ee | C-22 |
| Miridon OÜ | Heating, ventilation, air conditioning and sanitary | www.miridon.ee | D-01 |
| Malmerk Klaasium OÜ | Outdoor, garden and terrace | www.malmerkklaasium.ee | C-21 |
| Maa-amet | Other | www.maaamet.ee | B-23 |
| Line-X Baltic SIA | Construction materials | www.airsealing.eu | C-61 |
| Layher Tellingud Eesti OÜ | Tools, equipment, machinery and scaffolding. | www.layher.ee | C-88 |
| Laomaailm AS | Tools, equipment, machinery and scaffolding. | www.storit.ee | C-62 |
| Kukkumiskaitse OÜ | Tools, equipment, machinery and scaffolding. | www.kukkumiskaitse.ee | B-01 |
| K-Systems Baltic OÜ | Finishing materials | www.kraabmod.ee | C-12 |
| Kimpur Europe SIA | Construction materials | www.kimpur.com | C-34 |
| Jäätmete Sorteerimiskeskus OÜ | Tools, equipment, machinery and scaffolding. | www.jsk.ee | B-12 |
| Inducont OÜ | Heating, ventilation, air conditioning and sanitary | www.inducont.com | D-06 |
| Hydro Extrusion Baltics AS | Construction materials. Building constructions. | www.hydro.com/et-EE | C-24 |
| Hoovi Group OÜ | Other | www.hoovi.ee | B-21 |
| Kodu Kuubis OÜ | Roof and facade | www.kodukuubis.com | C-53 |
| Kinbass OÜ | Outdoor, garden and terrace | www.kinbass.ee | D-24 |
| Lokaator OÜ | Heating, ventilation, air conditioning and sanitary | www.lokaator.ee | C-73 |
| Ledvance Oy | Lighting and electrical systems | www.ledvance.com | C-06 |
| Lasita Maja AS | Prefabrication and modular constructions | pood.lasita.com/et | V-05 |
| K-Majad OÜ | Prefabrication and modular constructions | www.kastelli.ee | C-89 |
| Kliimaseade OÜ | Heating, ventilation, air conditioning and sanitary | www.kliimaseade.ee | D-10 |
| Katusemaailm OÜ | Roof and facade | www.katusemaailm.ee | C-17 |
| JUNG | Lighting and electrical systems | www.jung.ee | C-45 |
| Icy Getec OÜ | Construction materials | www.passiivsoojustus.ee | C-76 |
| Green Gravels OÜ | Construction materials. Outdoor, garden and terrace. | www.gravels.ee | B-05 |
| FRONCRETE kergbetoonist väliköögid | Outdoor, garden and terrace | www.froncrete.com/valikoogid | C-66 |
| Fortronic AS | Lighting and electrical systems | www.fortronic.ee | C-32 |
| Flexible Ceramic Eesti OÜ | Roof and facade. Finishing materials. | www.f-c.ee | B-04 |
| Flameguard Systems OÜ | Automation, access control and security | www.flameguard.ee | B-22 |
| ERGO Insurance SE | Other | www.ergo.ee | B-15 |
| Energiapada OÜ | Heating, ventilation, air conditioning and sanitary | www.energiapada.ee | D-25 |
| Energiakaubamaja OÜ | Lighting and electrical systems. Automation, access control and security. | www.energiakaubamaja.ee | C-79 |
| Enefit AS | Lighting and electrical systems. Heating, ventilation, air conditioning and sanitary. | www.enefit.ee | D-23 |
| EFHOME OÜ | Heating, ventilation, air conditioning and sanitary | www.efhome.eu/et | D-12 |
| Eesti Varaehitus OÜ | | www.varaehitus.ee | C-11 |
| Eesti Betooniühing | Other | www.betoon.org | B-10 |
| Hansakaupmees OÜ | Construction materials. Doors and windows. | www.hansakaupmees.ee | C-69 |
| Holzmill OÜ | Finishing materials | www.holzmill.ee | C-80 |
| Hansakamin OÜ | Heating, ventilation, air conditioning and sanitary | www.hansakamin.ee | C-87 |
| Hansa Floor OÜ | Finishing materials | www.hansafloor.ee | C-57 |
| ForteLED | Lighting and electrical systems | www.forteled.ee | B-08 |
| FixFas OÜ | Roof and facade | www.fixfas.eu | C-93 |
| ESAKODA MTÜ | Heating, ventilation, air conditioning and sanitary | www.esakoda.eu | D-30 |
| Ecosauna Project OÜ | Prefabrication and modular constructions | www.ecosauna.ee | V-01 |
| Eastcon AG Eesti OÜ | Heating, ventilation, air conditioning and sanitary | www.eastcon.ee | D-29 |
| Duuabl Works OÜ | Tools, equipment, machinery and scaffolding. | www.duuabl.com | B-17 |
| Diehl Metering GmbH | Heating, ventilation, air conditioning and sanitary | | D-06 |
| DELABIE | Heating, ventilation, air conditioning and sanitary | www.delabie.com | D-27 |
| Clean Investment OÜ / Katusehooldus.ee | Roof and facade | www.katusehooldus.ee | C-27 |
| CAT workwear | Tools, equipment, machinery and scaffolding. | www.sirekar.ee | C-47 |
| BitLoad | Tools, equipment, machinery and scaffolding. | www.bitload.ee | C-90 |
| Benders Baltic Nord OÜ | Construction materials. Roof and facade. Heating, ventilation, air conditioning and sanitary. Outdoor, garden and terrace. | www.benders.ee | C-31 |
| Bang&Bonsomer Eesti OÜ | Construction materials | www.bangbonsomer.com | C-11 |
| AVAEKSPERDID | Interior design | www.avaeksperdid.ee | C-48 |
| Carnauba | Other | | B-14 |
| Baltic TK / Tulikivi | Heating, ventilation, air conditioning and sanitary | www.tulikivi.ee | C-15 |
| Ecopur | Construction materials | www.ecopur.ee | C-68 |
| Doordec OÜ | Doors and windows | www.doordec.ee | C-23 |
| Decoland OÜ | Interior design | www.decoland.ee | C-67 |
| CLTEST OÜ | Building constructions | | C-96 |
| CLT Buildings OÜ | Prefabrication and modular constructions | www.cltbuildings.ee | C-84 |
| Build Scape SIA | Stairs and balustrades | www.buildscape.eu | C-81 |
| Brasta Glass UAB | Interior design | www.brastaglass.lt | C-54 |
| Aru Grupp AS | Doors and windows. Stairs and balustrades. | www.arugrupp.ee; www.stair24.ee | C-03 |
| Arbor Solution | Interior design | www.arborsolutions.ee | C-72 |
| Aragosta OÜ | Heating, ventilation, air conditioning and sanitary | www.kospel.ee | D-05 |
| Apkures katli SIA | Heating, ventilation, air conditioning and sanitary | www.apkureskatli.lv | D-28 |
| Anpe Baltics OÜ | Construction materials | www.anpe.ee | C-11 |
| AMPERE Polska Spzoo | Tools, equipment, machinery and scaffolding. | www.amperesystem.com | C-65 |
| Ampere Plus OÜ | Heating, ventilation, air conditioning and sanitary | www.ampere.ee | D-08 |
| AMAR Estonia | Tools, equipment, machinery and scaffolding. Outdoor, garden and terrace. | www.amar.ee | C-58 |
| Alvatreks OÜ / Hikmicro | Tools, equipment, machinery and scaffolding. | www.termokas.ee | B-11 |
| AlfaWest OÜ | Doors and windows | | C-28 |
| Akvedukt OÜ | Heating, ventilation, air conditioning and sanitary | www.akvedukt.ee | D-15 |
| Akmens Jumpti SIA / SSQ SLATE | Roof and facade | www.ssqgroup.com | C-83 |
| Ajax Systems Trading FZE | Automation, access control and security | www.ajax.systems | C-04 |
| Airwave OÜ | Heating, ventilation, air conditioning and sanitary | www.soojuspumbad.ee | D-18 |
| AdamS A.Pedzich Sp. K | Doors and windows | www.adams.com.pl/en/ | C-82 |
| ABCmodul OÜ / Holder.ee | Prefabrication and modular constructions | www.holder.ee | V-04 |
| AM Energy SIA / Eco Terrace | Outdoor, garden and terrace | www.ecoterrace.eu | C-44 |
| Art Doors OÜ | Doors and windows | www.artdoors.eu | C-08 |
| Arel Plus OÜ | Prefabrication and modular constructions | www.arelplus.ee | V-10 |
| Airobot Technologies AS | Heating, ventilation, air conditioning and sanitary | www.airobothome.com | D-19 |
| Agrovaru AS / Jungheinrich Eesti | Tools, equipment, machinery and scaffolding. | www.jungheinrich.ee | V-03 |
