One way of putting this:

There is an interesting review of a book called Death and Money in the Afternoon by Adrian Shubert on the OUP website about the commercial side of bullfighting in the 18th and 19th centuries:
“The bullfight was replete with promoters, agents, journalists, and, of course, hugely-paid bullfighters who were exploited to promote wine, cigarettes, and other products.”

http://ukcatalogue.oup.com/product/9780195144123.do

Bullfighting is by far more common, but...

Latin taurinus, from taurus bull; akin to Greek tauros bull, Middle Irish tarb
First Known Use: 1613

Cehegín - Antonio Puerta Cehegín reappear on 27 March
www.portaldecehegin.com/article.asp?id=1279889
26 Jan 2011 – Cehegín City will become the center of bullfighting in the region ... cooked bull stew for visitors to participate again taurine companies ...

Possibly

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Note added at 46 mins (2011-11-04 12:02:01 GMT)
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Toro Taking? ***Bullfighting Promoters** Sue Over Ban in Barcelona ...
jonathanturley.org/.../toro-taking-bullfighting-promoters-sue-over-ba...Cached
27 Sep 2011 – Last week saw the last bullfight in Barcelona, Spain. This week there is talk of a lawsuit by ***bullfighting companies** who want compensation for ...

This term has a very 19th century flavour and fits well. Corporations had not come into their own, i.e .companies were not regarded as real entities. It was the boss who counted.

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Note added at 9 horas (2011-11-04 20:57:37 GMT)
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Oh, now I realize the term"empresario" was in the original.Well,then make it "bullfighting impresarios and their firms"