By 1907 the company employed three to four hundred men and shipped engines all over the United States.

[1] Rutenber engines were used from 1905 in the Stoddard-Dayton automobiles, which became well known for their speed and power, winning the Indianapolis race in 1909.

In 1907, a 60 hp Rutenber engine powered the Meteor that went from Chicago to St. Louis (400 miles (640 km)) in 23 hours.

Rutenber engines were also used in a long list of early automobiles: American, Burg, Glide, Halladay, Jewel, Lexington, Luverne, Nyberg, Roamer and Westcott and were exported for use in the Australian Six.

They were also found in early Indiana trucks, De Berry airplanes, Wetmore tractors, Howe fire pumpers, marine applications, and many were used to power carnival carousels.