caterpillar_inc | keyperson | douglas_r_oberhelman <tsp> caterpillar_inc | location | illinois <tsp> aidaluna | owner | aida_cruises <tsp> aidaluna | powertype | caterpillar_inc <sep> caterpillar inc is an american construction equipment manufacturer the company is the world's largest manufacturer of construction equipment in 2018, caterpillar was ranked number 73 on the fortune 500 list and number 265 on the global fortune 500 list caterpillar stock is a component of the dow jones industrial averagecaterpillar inc 
a key person at caterpillar inc. based in illinois. is douglas r oberhelman. the company provides the power to the aidaluna owned by aida cruises.r. caterpillar inc. is an american construction equipment manufacturer