Winning design is mostly identical to Lloyd's Register logo.
https://www.mellori.com.au/wp-content/uploads/2017/09/LR-LOGO.jpg
http://www.stf-filtros.com/images/calidad/Logo_ISO_3834_blue.png

https://t4.ftcdn.net/jpg/01/88/26/57/500_F_188265764_cB9OdF2IXsWiiIJHEUTQILm4Haezf8M8.jpg
https://logosrated.net/wp-content/uploads/parser/LR-Logo-1.jpg