jump to accessibility statement accesskey 0 this site uses cookies . by continuing to browse the site you are agreeing to our use of cookies . find out more about cookies close about us our businesses insight media contacts search site services letterone about us our businesses insight media contacts search menu letterone group our aim is to build a world class diversified global investment business . we are a partnership of successful entrepreneurs and international businesspeople . if we think a sector is attractive and can be grown beyond the size and time horizon of private equity we will recruit renowned industry leaders to work in partnership with us to invest at scale . who we are news see all news dea submits pdo for the dvalin field 03 october 2016 letterone and freedompop announce strategic partnership 30 august 2016 l1 wins arbitration proceedings against cukurova opening way to reinstate corporate governance in turkcell 01 august 2016 letterone launches l1 health in us and announces franz humer appointed to l1 health advisory board 06 june 2016 high tech camera used in methane detection programme 20 may 2016 dea ready for further growth in norway 19 may 2016 dea operatorship in denmark obtained 18 may 2016 letterone pays tribute to maya plisetskaya in london 10 march 2016 letterone makes 200m strategic investment in uber 12 february 2016 dea awarded five licences in norway 03 february 2016 dea more than doubles production in norway 16 december 2015 petr aven receives woodrow wilson award in washington d.c. 03 november 2015 insight our investment decisions are informed by our industry leading insight . read about our points of view our businesses our investments are focused on the energy telecoms and technology sectors through our two main business units l1 energy and l1 technology . find out about our businesses share this page twitter facebook linkedin email letterone holdings s.a. 2016 letterone investment holdings s.a. 2016 letterone is a registered trademark of letterone holdings s.a. contact tel 352 26 38 77 1 fax 352 26 38 77 99 email contact letterone.lu 1 3 boulevard de la foire l 1528 luxembourg site services site index terms and conditions privacy and cookie policy accessibility help email alerts