|Headquarters||Düsseldorf, Frankfurt am Main, Germany|
|No. of offices||6|
|No. of attorneys||232 (2011)|
|Major practice areas||M&A, commercial law, structured finance|
|Key people||Hans Hengeler, Rudolf Mueller|
|Revenue||€210 million (2011, estimated)|
|Date founded||1990 (merger); (1901 Düsseldorf, 1947 Frankfurt)|
Hengeler Mueller is a German law firm of about 240 lawyers, 86 of whom are partners. The firm maintains offices in Berlin, Düsseldorf, Frankfurt am Main, Munich, Brussels, London and Shanghai. The firm was created in 1990 when Hengeler Kurth Wirtz (founded 1901 in Düsseldorf) and Mueller Weitzel Weisner (founded 1947 in Frankfurt) merged. It has been recognized in the top tier of firms in the fields of mergers & acquisitions, capital markets, finance, private equity and structured finance, particularly in synthetic securitization. The firm maintains strong ties with Slaughter and May (United Kingdom), Bonelli Erede Pappalardo (Italy), Bredin Prat (France), De Brauw Blackstone Westbroek (the Netherlands) and Uría Menéndez (Spain). The firm's revenues were € 218 million in 2016.
- First ever public takeover bid in Germany, advising Texaco on the acquisition of Deutsche Erdöl-Aktiengesellschaft (1966).
- Represented Deutsche Telekom in its €5.5 billion disposal of cable regions to US-based Liberty Media.
- Local counsel to Kohlberg Kravis Roberts in its €1.69 billion acquisition of metering and ceramics divisions from Siemens.
- KfW, the German government-owned development bank in a number of bond and notes offers.
- Issuer counsel along with Slaughter & May to €7 billion initial public offering of Siemens's car parts division.
- Represented Deutsche Bank against a €2 billion damages claim by Kirch Group.
- The Lawyer Euro 100, 2012 Archived 2012-06-24 at Archive.today
- Mävers, Bettina (October 7, 2002), "Der Kick beim gelungenen Deal", Handelsblatt (in German).
- Katzensteiner, Thomas (February 10, 2004), "Praktischer Kommunismus", Wirtschaftswoche (in German).
- "Rekordjahr für die 100 umsatzstärksten Kanzleien in Deutschland", juve (in German), September 29, 2016.
- "Texaco's Bid to Take Control Of Deutsche Erdol Succeeds", New York Times, June 6, 1966.