Our Companies
Electric Manufacturing Infrastructure Products and Services Food Ingredient Processing Health Services
Otter Tail Power Company
BTD Manufacturing, Inc.
DMI Industries, Inc.
ShoreMaster, Inc.
T.O. Plastics, Inc.
PLASTICS
Northern Pipe Products, Inc.
Vinyltech Corporation
OTHER BUSINESSES
CONSTRUCTION
Foley Company
Aevenia, Inc.
TRANSPORTATION
E.W. Wylie Corporation
Idaho Pacific Holdings, Inc.
DMS Health Technologies, Inc.