Henk specialises in tax and corporate law and, in particular, mergers and acquisitions and private equity structuring. Since joining De Brauw, Henk has advised numerous multinationals and private equity clients on public and private transactions, leveraged buy-outs, complex cross-border transactions, corporate restructurings, financings and refinancings, and the structuring of management incentive plans.

Legal 500 has recognised Henk as a "leading individual", with Chambers stating that Henk is "up and coming". In 2020, 2021 and 2023, Henk was nominated by MenA.nl (the Dutch M&A awards) as Best M&A Tax Adviser, and he won this award in 2024.

Henk’s recent work includes advising

• Bain Capital on the acquisition of Bugaboo from the founders and the sale of a majority interest to Mubadala capital
• Ardian on the acquisition of Attero from 3i and DWS
• Takeaway.com on numerous M&A transactions including its acquisition of the German business of Delivery Hero and the combinations with both Just Eat and Grubhub
• AkzoNobel on numerous M&A transactions including the separation and sale of its Specialty Chemicals to The Carlyle Group and GIC for EUR 10.1 billion
• Royal Philips on numerous M&A transactions including the EUR 862 million IPO of Philips Lighting (Signify) and the sale of Philips’ 80.1% interest in Lumileds to Apollo
• T-Mobile and Deutsche Telekom on the EUR 5.1 billion sale of T-Mobile Netherlands to Apax and Warburg Pincus, the combination of T-Mobile and Tele2, the divestment of T-Infra and the acquisitions of Vodafone’s fixed line consumer business and Simpel.nl
• Deutsche Telekom and T-Mobile Netherlands on the sale of the Dutch tower business to Cellnex
• Advent and Unit4 on the sale of the Unit4 Dutch software business to Exact Group and various other transactions, including the sale of Unit4 to TA Associates and Partners Group
• Parcom on most of its buy-side and sell-side transactions in the past seven years including the acquisition of Hunkemöller, Wajer Yachts , Zorg van de Zaak, Group of Butchers, Simpel.nl, Yource, MGG Group, ConDoor Group, Koninklijke Euroma, NedacSorboMascot, Outdoor Life Group, and other portfolio companies, and the sale of Altrex, Jan Snel, ConDoor Group, GustoMSC, GoodHabitz, Climate for Life and various other transactions
• Topicus.com on its combination with Total Specific Solutions and subsequent listing on the Toronto Stock Exchange
• Impax Asset Management on the acquisition, financing, development and sale of Zonnepark Vlagtwedde, the largest Dutch solar park (110MW)
• The founder of De Jong Packaging on the sale to Stora Enso
• Fugro on its refinancing transactions and multiple buyside and sell-side acquisitions and divestments
• The Kloosterboer family on the sale of Kloosterboer Group to Lineage (Bay Grove)
• Triton on the acquisition of Royal Reesink from Rivean Capital and a majority stake in Bergman Clinics