It sounds like it could be the name of a law firm, but all of the above are derivatives of the Germanic name Conrad.
Conrad is composed of the Germanic elements, kuoni (brave) and rad (counsel). It was borne by a 10th-century Bavarian saint, and his name has left its mark on Catholic Germany since. In fact, it was a very popular name in Medieval Germany and Konrad has seemed to have been so common that the proverb Hinz und Kunz (the equivalent of the English, Every Tom, Dick & Harry) was created.
It was also borne by several illustrious German kings and dukes.
Conrad is still a fairly common name modern Germany and is currently rising in popularity in the United States. As of 2010, it was the 772nd most popular male name. Its Dutch diminutive form of Koen has recently appeared in the U.S. top 1000, coming in as the 940th most popular male name (2010). In the Netherlands, Koen ranks significantly higher, he is the 39th most popular male name (2010). In English, it is pronounced (KOH-en) like the common Jewish surname, while in Dutch it is pronounced (KOON).
In 2009, Konrad was the 44th most popular male name in Poland.
The once popular Kurt and the newly introduced Cord are also Germanic contractions.
Other forms of the name include the following:
Konrad Конрад (Belarusian/Bulgarian/Estonian/Finnish/Polish/Scandinavian/Slovene/Ukrainian/Russian)
Konradin (German: archaic)
Corradino (Italian: archaic)
Kondrat (Polish: archaic)
In German, Conrad/Konrad has a plethora of diminutives such as: Cohen, Conni, Conz, Curd, Keno, Koni, Konni, Konz, Kord, Kuno and Kuntz.
Feminine forms include:
The designated name-days are: February 14 (Poland), February 19 (Poland), April 21 (Hungary & Poland), June 1 (Poland), August 1 (Poland), October 4 (Poland), November 12 (Estonia & Poland), November 21 (Poland) and November 26 (Poland & Germany).