Thomas Borch-Nielsen

Partner

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Project Asst.

Thomas Borch-Nielsen works with mergers, acquisitions (M&A), and corporate law. He advises both buyers and sellers in M&A transactions and investments across various industries, including energy, infrastructure, and aquaculture. 

Thomas has extensive national and international experience in M&A, having worked with both Norwegian and international clients, including companies, private equity funds, infrastructure funds, and investment banks. 

With his commercial and practical approach, Thomas is highly valued by his clients. 

Expertise areas

M&A
2025–

SANDS Advokatfirma

Partner
2024–2025

Advokatfirmaet Arntzen AS

Partner
2019–2024

Advokatfirmaet Grette AS

Partner
2010–2019

Advokatfirmaet Thommessen AS

Senior Lawyer | Lawyer | Associate
2008–2010

Ringerike tingrett

Deputy Judge
2004–2008

Advokatfirmaet Haavind AS

Associate
2003

University of Oslo

Cand.jur.
2002

University of Oslo

Economy – Elementary course
2025

Legal 500

Electricity and Renewable Energy, Recommended (ranked by Legal 500 since 2021)
2024

Legal 500

Commercial, Corporate and M&A, Recommended (ranked by Legal 500 since 2019)
2024

IFLR1000

M&A, Noticable Practitioner (ranked by IFLR1000 since 2023)
2024

Kapital's annual lawyer survey

Renewables and climate, Promising talents (ranked by Kapital since 2020)