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2026 Edition
Energy
Tier 2
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Arntzen Grette
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BAHR
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EY
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KPMG
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PwC
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Selmer
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Thommessen
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Tier 2

DLA Piper
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Deloitte
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Wiersholm
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Tier 3

CMS Kluge
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General corporate tax
Tier 1
20 firms ranked
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Arntzen Grette
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BAHR
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Deloitte
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EY
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PwC
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Thommessen
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Wiersholm
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Tier 2

Advokatfirmaet Bull AS
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Brækhus
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DLA Piper
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KPMG
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Schjødt
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Selmer
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Tier 3

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

SANDS Advokatfirma DA
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Simonsen Vogt Wiig
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Indirect tax
Tier 1
15 firms ranked
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BAHR
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Brækhus
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Deloitte
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EY
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KPMG
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PwC
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Selmer
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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
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Haavind
6 practice areas
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Shipping
Tier 2
10 firms ranked
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Arntzen Grette
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BAHR
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EY
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PwC
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DLA Piper
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Deloitte
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KPMG
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Thommessen
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Wiersholm
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Tier 3

Ræder Bing
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Tax controversy
Tier 2
15 firms ranked
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Tier 1

BAHR
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Selmer
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Thommessen
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Wiersholm
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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
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DLA Piper
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PwC
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Ræder Bing
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Transactional tax
Tier 1
15 firms ranked
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Tier 1

Arntzen Grette
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BAHR
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Deloitte
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EY
9 practice areas
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PwC
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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
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Brækhus
5 practice areas
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Transfer pricing
Tier 1
11 firms ranked
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BAHR
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Deloitte
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EY
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KPMG
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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
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DLA Piper
8 practice areas
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Tier 3

BDO
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Selmer
8 practice areas
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Linked Reviews
Tax

Deloitte Norway is a full-service law firm with a cross-border complement of advisory services. Practitioners deliver M&A transactions, indirect tax, transfer pricing and tax controversy. The decorated team provides counsel to companies under the OBX-index of the Oslo Stock Exchange. Managing partner is Audun Frøland. Controversy specialist Hans Martin Jørgensen, indirect expert Lars Erik Norborg and transactions practitioner Henriette Holmen are key contacts.

The firm advised Schlumberger on M&A transaction services, pertaining to a new joint venture with Aker Solutions and Subsea 7. It also acted for Orkla ASA in the establishment of a share purchase agreement.

Client feedback

“Very skilled, professional, easy to work with.”

Ethics seems to be playing a subservient role to an entitlement culture borne out of a pervasive ‘revenue at all costs’ mentality at the big four
Tom Goldstein’s attempt to overturn his tax conviction was shot down; in other news, Deloitte promoted several tax partners in Italy
The big four spin-off firm becomes Taxand’s second UK member; in other news, Haynes Boone launched a UK tax practice
Following Richard Houston’s switch to the newly formed Deloitte EMEA, Graves has the opportunity to bring Deloitte’s tax practice up to speed with its rivals
Darren Graves will succeed Richard Houston, who is set to lead Deloitte EMEA; in other news, Morgan Lewis hired a three-partner tax team in New York
As recent surveys suggest a disconnect between AI adoption and employee engagement, the big four risk digging themselves into a strategic hole
As the firm embarks on a major shakeup of its EMEA partnerships, some staff will be watching nervously
Our first instalment features analysis of Deloitte’s landmark EMEA merger, Donald Trump’s Supreme Court tariff showdown and Venezuela’s tax evolution
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