The holdings of TEC-Corp can be divided into the following groups for clarification:

Construction and Service Operations

Thompson Electric

Sioux City, IA

Sioux Falls, SD

Omaha, NE

Sioux City, IA

Thompson Teledata                     

Sioux City, IA

Sales and Distribution

Electric Innovations                     

Sioux City, IA

TESCO

Omaha, NE

Property

Prestwick Apartments

Whispering Creek Golf Course

Commercial Rental Property

Consulting

Thompson International

Operations

TEC-Services

TECIS

The TEC-Corp companies each have a specific purpose and a specific market. This specific market dictates the makeup of the individual companies.