Otter Tail Corporation revenue for the last year amounted to 1.35 B USD, the most of which — 528.36 M USD — came from its highest performing source at the moment, Electric, the year earlier bringing 549.70 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought Otter Tail Corporation 1.35 B USD, and the year before that — 1.46 B USD.