Licensing Executives
Is a generic term for managers involved in licensing activity. A professional association: The Licensing Executives Society International exists which has branches in 27 countries:

http://www.lesi.org

In addition to lawyers, patent attorneys and academics, licensing managers within industry and licensing consultants are members. Licensing managers within industry may or may not be legally qualified but will be responsible for marketing technology and IP for licensing out and also for searching for technology or IP to license in. They will also be involved in the negotiations needed to conclude a licensing agreement. Independent Licensing Consultants also exist to advise those companies without the in-house resources to carry out such work.

Invention promoters / Invention promotion firms
The work of reputable licensing executives, licensing consultants and lawyers should be distinguished from unscrupulous invention promoters and invention promotion firms. Whilst perhaps rarer in Europe than the USA there have been sufficient complaints about such firms extracting large fees for little or no effective work, especially from individual inventors or small firms in the US, to make the US Federal Trade Commission and the US Patent Office issue warnings about such firms¹ and for the USA to pass special laws to protect inventors from them.