Which industries produced great profits and wealth in the late 1800s

the industries that rise as giant businesses  in the 1800s were:

- railroads (network grew rapidly)

- Oil refining. Rockefeller formed standard oil company.

- Steel industry. Carnegie was a well known company owner in this industry.

-Morgan and Carnegie consolidated to form u.s. steel company  

-meat packing industry -Gustavis Swift

Explanation: in the the late 1800s the business organization (corporations, dividends, trust, consolidation-cheaper goods, pool)  was a national creed, there was also a philosophy of business and laissez-faire, "gospel of wealth". Besides, social darwinism let the rise of giant businesses.

under god i have placed my chiest strentgh and the safe guard to my loyal subjects

an era of negotiation.

is that an answer to your question?