| Rørlegger T. Sundset AS | Klæbu | 2010 |
| Rørlegger Teknikk AS | Oslo | 2011 |
| Rørlegger Terje Meek AS | Spongdal | 2022 |
| Rørlegger Thomas Bjørke AS | Dokka | 2017 |
| Rørlegger Thomas Westgård AS | Skien | 2006 |
| Rørlegger Timenes AS | Kristiansand S | 2017 |
| Rørlegger Titlestad AS | Os | 2021 |
| Rørlegger Tom Eilertsen AS | Sortland | 2011 |
| Rørlegger Vest AS | Valestrandsfossen | 2016 |
| Rørlegger Voss AS | Voss | 2026 |
| Rørlegger Ådne Halstenrud AS | Solumsmoen | 2015 |
| Rørlegger Øst AS | Oslo | 2015 |
| Rørlegger Øyvind Hasvold AS | Dokka | 2008 |
| Rørlegger'N 1 AS | Førresfjorden | 2013 |
| Rørlegger'N Bauer AS | Tynset | 2021 |
| Rørlegger'N I Son AS | Hølen | 2012 |
| Rørlegger'N Innlandet AS | Raufoss | 2015 |
| Rørlegger'N K AS | Hunndalen | 2015 |
| Rørlegger'N Lillehammer AS | Lillehammer | 2000 |
| Rørlegger'N Rolf Erik M. Finstad AS | Gressvik | 2023 |
| Rørlegger'N Tore Henriksen AS | Sundbyfoss | 2008 |
| Rørlegger'N Verdal AS | Verdal | 2024 |
| Rørlegger'N Verdal Holding AS | Verdal | 2024 |
| Rørlegger-Tjenester AS | Tromsdalen | 2019 |
| RØRLEGGER1 Narvik AS | Ankenes | 2019 |
| RØRLEGGER365 AS | Ålesund | 2020 |
| Rørleggerane AS | Haugesund | 2021 |
| Rørleggerbedrift Arild Andersen AS | Åros | 1982 |
| Rørleggerekspressen AS | Porsgrunn | 2014 |
| Rørleggeren Din AS | Tverlandet | 2024 |
| Rørleggeren Lyngdal AS | Lyngdal | 2003 |
| Rørleggeren Tromsø AS | Tromsdalen | 1990 |
| Rørleggerfirma Anders Furustad AS | Sandefjord | 2014 |
| Rørleggerfirma Bjørn Jensen AS | Sandefjord | 2025 |
| Rørleggerfirma Hanøy AS | Kolbeinsvik | 2004 |
| Rørleggerfirma K Horghagen AS | Buvika | 1988 |
| Rørleggerfirma Kjelgaard AS | Ytre Enebakk | 2004 |
| Rørleggerfirma Lien & Co AS | Raufoss | 1996 |
| Rørleggerfirma Sigurd Lima AS | Ålgård | 2024 |
| Rørleggerfirma Stølsvik AS | Stavanger | 1990 |
| Rørleggerfirma Tom Linskov AS | Vollen | 2011 |
| Rørleggerfirma Vvs-Proffen AS | Narvik | 2000 |
| Rørleggerfirmaet Lars Pettersen AS | Spydeberg | 2012 |
| Rørleggerfirmaet Leif Og Per Aanonsen AS | Fevik | 1995 |
| Rørleggergutta AS | Nøtterøy | 2008 |
| Rørleggerhjelpen AS | Sandefjord | 2012 |
| Rørleggerhuset AS | Oslo | 2017 |
| Rørleggeriet AS | Drøbak | 2024 |
| Rørleggeriet Os AS | Os | 1997 |
| Rørleggerkompaniet AS | Oslo | 2005 |
| Rørleggermester Aadne Carlsen AS | Sandnes | 2020 |
| Rørleggermester Aasvang AS | Stokke | 2015 |
| Rørleggermester Anders Høyland Solheim AS | Haugesund | 2021 |
| Rørleggermester Andreas Eriksen AS | Bekkestua | 2003 |
| Rørleggermester Are M. Fiskaa AS | Fiskå | 2007 |
| Rørleggermester Arve Nilsen AS | Stavanger | 2016 |
| Rørleggermester Bernt Skatland AS | Steinkjer | 1989 |
| Rørleggermester Bjørn Olsrud AS | Mosjøen | 2013 |
| Rørleggermester Brødremoen AS | Vesterøy | 2026 |
| Rørleggermester Bård Gundersen AS | Saksvik | 2017 |
| Rørleggermester Bård Karlsen AS | Bodø | 2019 |
| Rørleggermester Carstensen AS | Høvåg | 2022 |
| Rørleggermester Daniel K. Berland AS | Kjerrgarden | 2018 |
| Rørleggermester Dokken AS | Stavern | 2025 |
| Rørleggermester Edvard Tjøstheim AS | Rennesøy | 2005 |
| Rørleggermester Egil Grønstad AS | Sør-Fron | 2001 |
| Rørleggermester Einar Jørstad AS | Oslo | 1998 |
| Rørleggermester Ekseth AS | Verdal | 2018 |
| Rørleggermester Filip Olsen AS | Porsgrunn | 2021 |
| Rørleggermester Frank Størkersen AS | Svolvær | 2005 |
| Rørleggermester Freddy Thorbjørnsen AS | Husøysund | 2009 |
| Rørleggermester Glenn Bakkeli AS | Oslo | 2023 |
| Rørleggermester Harald Larsen AS | Oslo | 2004 |
| Rørleggermester Helge Fløysand AS | Salhus | 2020 |
| Rørleggermester Helge Kisfoss AS | Nordagutu | 1994 |
| Rørleggermester Henning R.Engebretsen AS | Halden | 2006 |
| Rørleggermester Holan AS | Verdal | 2021 |
| Rørleggermester Håkon Trolsrud AS | Steinberg | 2013 |
| Rørleggermester J-A Kristiansen AS | Oteren | 2019 |
| Rørleggermester J. E. Ulven AS | Oslo | 1994 |
| Rørleggermester Jan Ellingsen AS | Andenes | 1989 |
| Rørleggermester Jan Jacobsen AS | Straumsgrend | 2002 |
| Rørleggermester Jarle Haug AS | Spongdal | 2014 |
| Rørleggermester Jarle Håkedal AS | Birkeland | 2024 |
| Rørleggermester Jarle Olsen AS | Stord | 2018 |
| Rørleggermester Jarle Woster AS | Sandnes | 2016 |
| Rørleggermester Jensen AS | Strømmen | 2014 |
| Rørleggermester Johannessen AS | Fyllingsdalen | 2016 |
| Rørleggermester Johansen AS | Lier | 2016 |
| Rørleggermester Kai G Almeli AS | Feiring | 1997 |
| Rørleggermester Kjell Aunmo AS | Røros | 2002 |
| Rørleggermester Kjell Horn AS | Leknes | 1994 |
| Rørleggermester Lien AS | Tyristrand | 2013 |
| Rørleggermester Mangelrød AS | Kvelde | 2021 |
| Rørleggermester Morten Øvland AS | Finsland | 2023 |
| Rørleggermester Nærum AS | Skien | 2011 |
| Rørleggermester Olav Tellebon AS | Alvdal | 2013 |
| Rørleggermester Olav Tellebon AS | Alvdal | 2026 |
| Rørleggermester Ole J. Kristiansen AS | Manstad | 2020 |
| Rørleggermester Ole R Tvedt AS | Kristiansand S | 2014 |