| Wiable AS | Hafrsfjord | 2005 |
| Wiax Eiendomstjenester AS | Sarpsborg | 2026 |
| Wiba Norge Da | Tromsø | 2012 |
| Wicab Container AB | Se-422 46 Hising Backa | 2021 |
| Wicked Horizon AS | Jar | 2020 |
| Wickman Coventry Limited | Oslo | 2005 |
| Widerøe Gse Asset AS | Bodø | 1936 |
| Widi AS | Vadsø | 2025 |
| Widju AS | Oslo | 2021 |
| Widsten Invest Ans | Trollåsen | 2002 |
| Wie Haveland Utleie Da | Hvalstad | 2022 |
| Wieland Personalservice GmbH | Høvik | 2007 |
| Wiersdalen Maskin AS | Skien | 2024 |
| Wiggens Konsulent Tjenester Nuf | Hommelvik | 2021 |
| Wiggo Andersen Holding AS | Gamle Fredrikstad | 2005 |
| Wihold AS | Oslo | 2020 |
| Wiih Event AS | Stabekk | 2025 |
| Wiik Anlegg AS | Sandefjord | 2020 |
| Wiik Motorsport AS | Ottestad | 2018 |
| Wiisda AS | Nyborg | 2008 |
| Wikan Personal Botnia AB | 29133 Kristianstad | 2017 |
| Wikerøy Invest AS | Nord-Lenangen | 2015 |
| Wikholm Holding AS | Olsvik | 2022 |
| Wikholm Holding II AS | Olsvik | 2022 |
| Wikon Services AS | Kleive | 2012 |
| Wiks Bilopphuggeri Og Tjenester AS | Charlottenlund | 2024 |
| Wild Arctic AS | Vardø | 2022 |
| Wild Fjord Experience AS | Stamsund | 2025 |
| Wild Nature AS | Rennesøy | 2022 |
| Wild Ocean AS | Andenes | 2016 |
| Wild Passion Holding AS | Hønefoss | 2020 |
| Wild Sauna AS | Voss | 2024 |
| Wild Voss AS | Voss | 2015 |
| Wildoslo AS | Siggerud | 2020 |
| Wildphoto Travel AS | Longyearbyen | 2020 |
| Wilhelmsen Drift AS | Oslo | 2020 |
| Wilhelmsen Kranservice AS | Oslo | 2015 |
| Wilhelmsen Marine Personnel (Hong Kong) Ltd Nuf | Lysaker | 2013 |
| Wilhelmsen Marine Personnel (Norway) AS | Lysaker | 1989 |
| Wilhelmsson Platslageri AB | Se-67010 Töcksfors | 2014 |
| Willa Renhold AS | Kristiansand S | 2013 |
| Willem Barentsz International Arena in the Arctic AS | Vardø | 2014 |
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| William AS | Vågå | 2011 |
| Willis Engine Structured Trust III | Florida 33073 | 2019 |
| Willis Lease Finance Corporation | 33073 Florida | 2010 |
| Wilsgård Multiservice AS | Båtsfjord | 2020 |
| Wilsgård Reiseliv AS | Torsken | 2020 |
| Wilson Shipowning AS | Laksevåg | 1997 |
| Wimo Utleie AS | Nesttun | 2016 |
| Win Personell AS | Drammen | 2024 |
| Windhoist Ireland Limited | Ie-Co Monaghan H18 X430 | 2020 |
| Windhoist Limited | Irvin Aurshire Ka11 5Bj Scotland | 2009 |
| Winding Roads AS | Oslo | 2018 |
| Windingstad AS | Tolvsrød | 1995 |
| Windmill AS | Kristiansand S | 1997 |
| Window Dressing AS | Oslo | 2017 |
| Windsland Holding AS | Birkeland | 2015 |
| Wingames AS | Lier | 2013 |
| Wingbyh Invest AS | Askim | 2009 |
| Winge Reisebureau AS Kristiansand | Kristiansand S | 1977 |
| Wings Travel Management AS | Sandnes | 2016 |
| Winlunds Assistanse Da | Gan | 2003 |
| Wintershall Dea International GmbH Nuf | De-20457 Hamburg | 2024 |
| Winzryg Maskin AS | Breim | 2020 |
| Wiorko Drift AS | Oslo | 2024 |
| Wire Card AG | 85630 Grasbrunn | 2006 |
| Wire Rod Holding SL | Oslo | 2010 |
| Wisth Transport AS | Barstadvik | 2023 |
| Wisto Eiendom AS | Gardermoen | 2012 |
| Wiva Maskintjenester Da | Sirma | 2021 |
| Wizp AS | Tønsberg | 2023 |
| WM Enterprise Oü | Ee-70105 Viljandi Maakond | 2011 |
| WM Flisenoverlege Gbr-Wieck Und Mittelstädt | De-23996 Gallentin | 2011 |
| Wman Rekrutacja I Serwis Beata Mankowska Nuf | Pl-80-297 Banino | 2016 |
| Wman Rekrutacja I Serwis SP. Z. O.O. Nuf | Pl-80-297 Banino | 2019 |
| WMN AS | Ørnes | 2026 |
| WNM Belldom (Norway) Limited | London Ec1V 2Nx England | 2024 |
| WNS Pomorze SP. Z O.O Nuf | Drammen | 2006 |
| Wol Industries AS | Oslo | 2021 |
| Wold Consulting AS | Oslo | 2005 |
| Wold Inspeksjon & Service AS | Nevlunghavn | 2021 |
| Wolffkran AG Nuf | Ch-6330 Cham | 2026 |
| Wolffkran Norge AS | Åros | 2021 |
| Wonder Norway AS | Sør-Fron | 2021 |
| Wondering Reindeer AS | Tromsø | 2019 |
| Wonderlust AS | Hafslo | 2019 |
| Wood Building Nordic (Nuf) Nuf | Se-352 71 Växjö | 2024 |
| Woodlite Sweden AB | Se-652 21 Karlstad | 2026 |
| Woofer AS | Lillehammer | 2006 |
| Wordsmith Worldwide AS | Gjettum | 2019 |
| Work Consult Ans | Oslo | 1999 |
| Work Group Da | Odnes | 2009 |
| Work Molde AS | Molde | 2017 |
| Work Norge AS | Mo I Rana | 2023 |
| Work Norway SP. Zo.O Nuf | Pl-00641 Warsaw | 2015 |
| Work Supply - Trabalho Temporário Lda | Pt-2620-162 Póvoa De Santo Adrião | 2022 |
| Workation AS | Lørenskog | 2024 |
| Workfor Safeguard AS | Tertnes | 2019 |
| Workforce International Contractors Ltd | Rush Co Dublin | 2013 |