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2026 Edition
Energy
Tier 2
11 firms ranked
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Tier 1

Arntzen Grette
8 practice areas
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BAHR
8 practice areas
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EY
9 practice areas
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KPMG
9 practice areas
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PwC
9 practice areas
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Selmer
8 practice areas
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Thommessen
8 practice areas
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Tier 2

DLA Piper
8 practice areas
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Deloitte
9 practice areas
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Wiersholm
8 practice areas
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Tier 3

CMS Kluge
7 practice areas
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General corporate tax
Tier 2
20 firms ranked
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Tier 1

Arntzen Grette
8 practice areas
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BAHR
8 practice areas
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Deloitte
9 practice areas
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EY
9 practice areas
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PwC
9 practice areas
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Thommessen
8 practice areas
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Wiersholm
8 practice areas
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Tier 2

Advokatfirmaet Bull AS
5 practice areas
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Brækhus
5 practice areas
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DLA Piper
8 practice areas
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KPMG
9 practice areas
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Schjødt
3 practice areas
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Selmer
8 practice areas
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Tier 3

BDO
5 practice areas
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CMS Kluge
7 practice areas
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Haavind
6 practice areas
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Ræder Bing
7 practice areas
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Wikborg Rein & Co
2 practice areas
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Tier 4

SANDS Advokatfirma DA
5 practice areas
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Simonsen Vogt Wiig
2 practice areas
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Indirect tax
Tier 2
15 firms ranked
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Tier 1

BAHR
8 practice areas
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Brækhus
5 practice areas
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Deloitte
9 practice areas
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EY
9 practice areas
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KPMG
9 practice areas
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PwC
9 practice areas
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Selmer
8 practice areas
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Thommessen
8 practice areas
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Tier 2

Arntzen Grette
8 practice areas
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BDO
5 practice areas
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DLA Piper
8 practice areas
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Schjødt
3 practice areas
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Wiersholm
8 practice areas
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Tier 3

Advokatfirmaet Bull AS
5 practice areas
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Haavind
6 practice areas
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Shipping
Tier 2
10 firms ranked
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Tier 1

Arntzen Grette
8 practice areas
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BAHR
8 practice areas
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EY
9 practice areas
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PwC
9 practice areas
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Tier 2

DLA Piper
8 practice areas
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Deloitte
9 practice areas
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KPMG
9 practice areas
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Thommessen
8 practice areas
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Wiersholm
8 practice areas
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Tier 3

Ræder Bing
7 practice areas
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Tax controversy
Tier 3
15 firms ranked
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Tier 1

BAHR
8 practice areas
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Selmer
8 practice areas
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Thommessen
8 practice areas
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Wiersholm
8 practice areas
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Tier 2

Advokatfirmaet Bull AS
5 practice areas
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Arntzen Grette
8 practice areas
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Brækhus
5 practice areas
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Deloitte
9 practice areas
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EY
9 practice areas
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Haavind
6 practice areas
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KPMG
9 practice areas
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Tier 3

CMS Kluge
7 practice areas
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DLA Piper
8 practice areas
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PwC
9 practice areas
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Ræder Bing
7 practice areas
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Transactional tax
Tier 2
15 firms ranked
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Tier 1

Arntzen Grette
8 practice areas
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BAHR
8 practice areas
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Deloitte
9 practice areas
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EY
9 practice areas
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PwC
9 practice areas
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Selmer
8 practice areas
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Thommessen
8 practice areas
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Wiersholm
8 practice areas
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Tier 2

Advokatfirmaet Bull AS
5 practice areas
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DLA Piper
8 practice areas
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Haavind
6 practice areas
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KPMG
9 practice areas
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Ræder Bing
7 practice areas
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Tier 3

BDO
5 practice areas
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Brækhus
5 practice areas
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Transfer pricing
Tier 2
11 firms ranked
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Tier 1

BAHR
8 practice areas
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Deloitte
9 practice areas
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EY
9 practice areas
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KPMG
9 practice areas
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PwC
9 practice areas
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Thommessen
8 practice areas
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Wiersholm
8 practice areas
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Tier 2

Arntzen Grette
8 practice areas
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DLA Piper
8 practice areas
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Tier 3

BDO
5 practice areas
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Selmer
8 practice areas
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Linked Reviews
Tax

DLA Piper has a large Nordic function for corporate tax instructions. VAT, transactions, and controversy for domestic and cross-border engagements. W&I insurance is a niche service speciality. Technology, financial services, and renewable energy are core sectors. Practice head is Jonas Aartun, in collaboration with fellow partners Preben Aas and associate Ole Kristian Grime.

The firm advised Centennial on corporate acquisitions and carried subsidiary tax losses. It also acted for Northern Green Hydro BV in structuring and customs counsel.

3 results3 results
It continues a prolific spree of investment for the firm, after it launched in Indonesia, Thailand, Saudi Arabia and Japan in 2025
Partners are divided on Italy vs PDM D’s analytical depth, evidentiary standards, and what the judgment signals for future intra-group financing cases
ITR concludes its analysis of World Tax’s rankings for 2026 by highlighting the firms that stood out most on a global scale
Clients are facing increased TP audit scrutiny in Hungary. DLA Piper Hungary is therefore using AI and advanced analytics to augment its advice, the firm’s head of TP says
Awards
The firms picked up five major awards between them at a gala ceremony held at New York’s prestigious Metropolitan Club
As World Tax unveils its much-anticipated rankings for 2026, we focus on EMEA’s top performers in the first of three regional analyses
France v Axa provides a practical illustration of how the burden of proof is applied in TP matters under French law, ITR also heard
Ahead of another busy year for the World Tax rankings and ITR Awards, we profile some of the UK’s major firms and explore key market trends
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