He is a co-founder of the advisory firm, Raktas, and an investor in multiple companies such as: Venturethree, Danfoss-Turbocor, Arcam, Põhjala Brewery and Gate Capital.
As a partner at both McKinsey & Company and Accenture, Jenk helped build both firms' global presence as well as advised a number of international clients engaged in the: consumer goods, industrial products; property; technology and financial sectors.
His father was an international businessman and decorated war veteran;[1] his mother was a senior royal flights stewardess for BOAC.
During his time at McKinsey, Jenk opened and managed eight new offices, including Rio de Janeiro, Athens and Moscow as well as the restructuring of Milan.
In 1992, at the height of the financial crisis in Sweden, Jenk's team advised the Swedish Government with regard to ‘saving’ Nordbanken, the state-owned bank, from insolvency.
This work facilitated the creation of Nordea, one of Europe's leading banks as well as providing a positive impact to Taxpayers’ funds.
In 1993, Jenk was asked to open and lead McKinsey's Moscow office as part the firm's expansion into Eastern Europe.
Jenk was instrumental in advising various brewery owners with regard to the development and consolidation of the Greater European beer industry.
[7][8] In 2003, Dimitris Daskalopoulos, the owner of Delta Holdings, the leading Greek consumer goods company, appointed Jenk as its CEO.
Jenk was then asked by Wolf to manage the parent bank's NPL portfolio of €24 billion assets in Sweden and establishment of Ektornet.
As a member of the International Advisory Board for the Open University Business School, Jenk helped oversee its global growth strategy.
[18] He was chairman of the Board of Governors of St. Catherine's British School in Athens and is part of the Working Group at Keble College, Oxford.