A business like Workhorse Group, which employs 130 people and had sales of less than $1 million in the first nine months of the year, would not normally attract much attention on Wall Street. For a time, investors poured money almost exclusively into Tesla, but that capital has spread to makers of commercial vehicles like Workhorse in anticipation of large orders from companies including Amazon and UPS, which are delivering more packages every year and have pledged to reduce their greenhouse gas emissions. “We’ve had probably 180 one-on-one meetings this year with different funds and investors that want to hear our story,” Workhorse’s chief financial officer, Steve Schrader, said in a recent interview. 