Ainsworth Inc. (Cat. 11)

Alleghany Industrial Insulation Co. (Cat. 8)

DM Industries, Inc. (Cat. 6)

First Capital Insulation, Inc. (Cat. 8)

Gassert Mechanical & Industrial Insulation, Inc. (Cat. 8)

Green Kite, Inc. (Cat. 6)

Groff's Heating, A/C & Plbg., Inc. (Cat. 10)

MARC-Service, Inc. (Cat. 8)

MYCO Mechanical, Inc. (Cat. 10)

PA Pride Insulation, Inc. (Cat. 7)

R.L. Insulation Co., Inc. (Cat. 7)

The Witmer Co. (Cat. 8)

Thermotech, Inc. (Cat. 7)

Zimmerman Plumbing & Heating, Inc. (Cat. 8)