The French government is a major shareholder in one of the Big Six energy providers in the UK. EDF Energy is part of the French EDF Group. The French government is the majority shareholder in the group, with 83% of shares, as of September 2017.
Railway infrastructure—things like the tracks, signals, level crossings, bridges, and tunnels—is run by Network Rail, which describes itself as a “public company, answerable to Government”. Trains, most smaller stations, and routes are split into franchises run by different companies. Around a dozen of the franchise holders are linked to governments in other countries.
A German company, Deutsche Bahn, owns several UK rail franchises—Arriva Trains Wales, Chiltern Railways, CrossCountry, Grand Central, and Northern. The German government is Deutsche Bahn’s majority shareholder.
Rail travel in France is run by a state-owned rail company, SNCF. SNCF is also the majority shareholder in a French private transport firm called Keolis which in turn jointly owns railway company Govia with the UK Go-Ahead Group. Govia owns and operates UK franchises: Thameslink, Southern, South Eastern, Great Northern, and Gatwick Express.
Abellio has partnerships with other businesses to run rail franchises. Along with the Japanese companies Mitsui & Co. and East Japan Railway it runs London Northwestern and West Midlands Rail. Abellio also runs Merseyrail with UK-based Serco.
Royal Mail was privatised in 2013 and the government sold its final shares in the company in 2015. As of 2016/17, 12% of the company shares were held by employees. We’ve not seen a full list of shareholders and have asked the Royal Mail for more information.
Another delivery company, UK Mail, is part of Deutsche Post DHL Group. 21% of Deutsche Post DHL shares are held by KfW Bankengruppe, which is owned by both the German federal government and various German state governments. This may have been what the audience member was referring to.