| ABB AS | access control and security., Lighting and electrical systems. Automation | C-26 |
| ACM Metal OÜ | Roof and facade. | V-11 |
| Aiapaigaldus OÜ | garden and terrace., Outdoor | V-04 |
| Air Tec Baltic OÜ | access control and security., air conditioning and sanitary. Automation, Heating, ventilation | C-62 |
| Airobot OÜ | air conditioning and sanitary., Heating, ventilation | C-02 |
| Arctic Spas OÜ | garden and terrace., Outdoor | C-87 |
| Arel Plus OÜ | garden and terrace., Prefabrication and modular constructions. Outdoor | V-07 |
| Art Doors OÜ | Doors and windows. Stairs and balustrades. | C-08 |
| Aru Grupp AS | Doors and windows. Stairs and balustrades. | C-03 |
| Balteco AS | Interior design. | C-68 |
| Baltichouse Production OÜ | Prefabrication and modular constructions. | V-08 |
| Baltijos Polistirenas UAB / BalPol | Construction materials. Roof and facade. Prefabrication and modular constructions. | C-55 |
| Bang&Bonsomer Eesti OÜ | | C-11 |
| Baumit SIA | Building constructions. Roof and facade. Finishing materials. Sustainable solutions. | C-45 |
| Beam Baltic OÜ | air conditioning and sanitary., Heating, ventilation | C-85 |
| Belüftung OÜ | | C-12 |
| Bestor Grupp AS | Roof and facade. | B-12 |
| Big Green Egg Eesti OÜ | garden and terrace., Outdoor | C-87 |
| Budmat Bogdan Wiecek | Roof and facade. | C-66 |
| Centene Pro OÜ / StoneREX | Building constructions. Roof and facade. | C-90 |
| Cewood SIA | Finishing materials. | C-22 |
| CITIC Telecom CPC Estonia OÜ | Other. | B-16 |
| Decohome OÜ | Doors and windows. | C-56 |
| Decoland OÜ | Interior design. | C-70 |
| DynaBrac OÜ | air conditioning and sanitary. Prefabrication and modular constructions. Sustainable solutions., Heating, ventilation | C-59 |
| E&T OÜ | Lighting and electrical systems. | B-14 |
| Ecoheat Trading OÜ | air conditioning and sanitary., Heating, ventilation | C-38 |
| Ecosauna Project OÜ | garden and terrace., Outdoor | V-15 |
| Eesti Betooniühing | Other. | B-04 |
| Eesti Katuse- ja Fassaadimeistrite Liit MTÜ | Roof and facade. | B-05 |
| Eesti Puitmajaliit MTÜ | Prefabrication and modular constructions. | C-75 |
| Eltarko OÜ | air conditioning and sanitary., Heating, ventilation | C-27 |
| Englo OÜ | Lighting and electrical systems. Equipment, machinery and scaffolding. | B-13 |
| ESAKODA MTÜ | | B-03 |
| First Step OÜ / Varustaja24 | garden and terrace., Lighting and electrical systems. Equipment, machinery and scaffolding. Outdoor | V-01 |
| Generga UAB | Lighting and electrical systems. | C-36 |
| Green Marine AS | Other. | V-09 |
| Haljas Houses OÜ | Prefabrication and modular constructions. | C-32 |
| Hansa Floor OÜ | Finishing materials. | C-70 |
| Hansakamin OÜ | air conditioning and sanitary., Heating, ventilation | C-90 |
| Heakatus OÜ | Roof and facade. | B-02 |
| Icy Getec OÜ | Construction materials. | C-28 |
| Ideaalpuhastus OÜ | Other. | B-10 |
| JUNG Vilnius UAB | access control and security., Lighting and electrical systems. Automation | C-35 |
| K-Majad OÜ | Prefabrication and modular constructions. | C-81 |
| Katted24 OÜ | Construction materials. Building constructions. Roof and facade. Outdoor, garden and terrace. Interior design. | V-04 |
| Katusemaailm OÜ | Roof and facade. | C-20 |
| Kingspan Insulation OÜ | Construction materials. | C-52 |
| Klaasart OÜ | Doors and windows. | C-83 |
| Kukkumiskaitse OÜ | access control and security. Equipment, Automation, machinery and scaffolding. | V-10 |
| Lasita Maja AS | Prefabrication and modular constructions. | V-03 |
| Lindab AS | air conditioning and sanitary., Construction materials. Building constructions. Roof and facade. Heating, ventilation | C-61 |
| Lipuvabrik OÜ | garden and terrace., Outdoor | V-02 |
| Lokaator OÜ | | C-62 |
| Maa-amet | Other. | B-09 |
| Maaküte OÜ | air conditioning and sanitary., Heating, ventilation | C-28 |
| Makserv OÜ | Equipment, garden and terrace., machinery and scaffolding. Outdoor | B-01 |
| Malmerk Klaasium OÜ | garden and terrace., Outdoor | C-30 |
| Miridon OÜ | air conditioning and sanitary., Heating, ventilation | C-39 |
| Mirlex OÜ | Finishing materials. Interior design. | C-33 |
| Mobiled Estonia OÜ | Lighting and electrical systems. Equipment, machinery and scaffolding. Sustainable solutions. | C-41 |
| MOSO Eesti | Construction materials. Building constructions. Roof and facade. Stairs and balustrades. Finishing materials. Sustainable solutions. Outdoor, garden and terrace. | C-60 |
| Nelissen Eesti OÜ | Construction materials. Roof and facade. Finishing materials. | B-11 |
| Nutiklaas OÜ | Doors and windows. Interior design. | C-18 |
| Omicron OÜ | air conditioning and sanitary. Sustainable solutions. Outdoor, garden and terrace., Heating, ventilation | B-06 |
| OneWood OÜ | Construction materials. Roof and facade. | C-80 |
| Paa SIA | Interior design. | C-19 |
| Päästeamet | access control and security. Other., Automation | B-08 |
| Palmako AS | Building constructions. Prefabrication and modular constructions. | C-72 |
| Papalamp OÜ | Lighting and electrical systems. | B-07 |
| Puhastid OÜ / ECCUA | Other. | C-29 |
| Puitmast OÜ | garden and terrace., Outdoor | V-14 |
| Raitwood Puiduterminalid / Rait AS | Building constructions. Roof and facade. Finishing materials. | C-73 |
| Rakvere RLR OÜ | Doors and windows. Stairs and balustrades. Outdoor, garden and terrace. Interior design. | C-53 |
| Reideni Plaat AS | Construction materials. Building constructions. Roof and facade. Sustainable solutions. | C-04 |
| Ribbon Consult OÜ | | B-15 |
| Rotho Blaas Baltic SIA | Prefabrication and modular constructions. | C-74 |
| Säästvad Ehituslahendused & MEISTRI | Construction materials. | C-58 |
| Saros Est OÜ | Finishing materials. Lighting and electrical systems. | C-47 |
| Saunum Saunas OÜ | access control and security. Prefabrication and modular constructions., air conditioning and sanitary. Automation, Heating, ventilation | C-57 |
| Schöck Bauteile GmbH | Building constructions. Stairs and balustrades. Sustainable solutions. | C-86 |
| Silmani Elekter AS | Lighting and electrical systems. | C-15 |
| Sindelkatuse OÜ | Construction materials. Roof and facade. Finishing materials. Sustainable solutions. | C-07 |
| Smart Home Systems OÜ | access control and security., air conditioning and sanitary. Automation, Lighting and electrical systems. Heating, ventilation | C-17 |
| Solarstone OÜ | air conditioning and sanitary., Roof and facade. Heating, ventilation | C-31 |
| Spraytec OÜ | Finishing materials. Equipment, machinery and scaffolding. | C-76 |
| Sternoberg OÜ | garden and terrace., Outdoor | C-77 |
| Sunly City OÜ | air conditioning and sanitary., Heating, ventilation | C-31 |
| Taure AS | Equipment, garden and terrace., machinery and scaffolding. Outdoor | V-05 |
| Tenter OÜ | Building constructions. Prefabrication and modular constructions. | C-43 |
| Tervemaja OÜ | Building constructions. Roof and facade. Doors and windows. Finishing materials. | C-54 |
| Topcret Eesti Mikrotsement | Construction materials. Finishing materials. | C-25 |
| VBH Estonia AS | Doors and windows. | C-05 |
| Veepisar AS | Doors and windows. Interior design. | C-40 |
| Velve MT OÜ | Construction materials. Building constructions. Finishing materials. | C-23 |
| WALLNESS Advokaadibüroo | Other. | B17 |
| Warmotech | Building constructions. Doors and windows. Sustainable solutions. | C-24 |
