The fire broke out just before midnight Monday in a building on Sante Fe and Ventura in Downtown Fresno.
Firefighters found a 20,000 square-foot warehouse full of flames shooting through the roof.
Power lines were knocked down.
They also had to shutdown the nearby railroad tracks, to get access to the fire.
Chase Mero lost his forklift repair business in the fire.
The other two businesses, were a mattress refurbishing company and an auto repair shop.
It's believed the fire started in the mattress business where employees were at work.
At this time the fire is not considered suspicious.
Damages are estimated at a million dollars.
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