HAGEMAN HOMES, L.L.C.

Decker Concrete, Inc.

建筑施工

Dyersville，IA

Guarantee Electrical Company (Formerly Berwick Electric)

电器、电气和电子产品制造业

Colorado Springs，CO

Berwick Insurance Group

保险业

Tucson，AZ

Advanced Precast Company

建筑业

Dyersville，Iowa

Berwick Retirement Communities

酒店业

Victoria，BC

Leo Berwick

金融服务

New York，NY

State of Iowa - Executive Branch

政府管理