Please help me understand what Prudential Capital Group does?!

Here is the description of the role:

Prudential Capital Group is one of the largest asset managers of private fixed income securities with more than $79 billion of private debt and equity investments in more than 1,000 companies worldwide (as of March 31, 2017). Prudential Capital Group typically invests up to $12 billion annually in privately placed senior and mezzanine financings to middle-market companies. With 13 regional offices worldwide, Prudential Capital Group is known for investing in relationships, providing strategic capital and delivering consistent results. Prudential Capital has earned a reputation for providing financing across the private capital risk spectrum. Prudential Capital's regional office network has locations in the U.S. -- Atlanta, Chicago, Dallas, Los Angeles, Minneapolis, New York, Newark, San Francisco; the UK/Europe -- London, Paris, Milan and Frankfurt; and Australia – Sydney. (*The Sydney office operates through PGIM (Australia) Pty Ltd.)
Prudential Capital Group seeking an Investment Analyst to join their Chicago corporate finance Office.
Description & Responsibilities:
The Investment Analyst role is a three-year assignment that offers candidates the chance to build their analytical skills and expand their knowledge of private capital investments and the broader capital markets. In this role, the Analyst supports Prudential Capital Group in managing and investing private placement senior, mezzanine and equity investments in companies around the globe. Prudential Capital Group's clients range from large multi-national public companies to smaller privately held companies across broad industry classifications.

So does Prudential Capital Group provide mezzanine capital to companies as a primary issuance (placement), or does it invest in the debt in the secondary market? Can someone give me a typical and Easy example of a "deal" they would do? Who are their "clients"??? I have an interview and dont understand them.