Ainsworth Inc. (Cat. 11)

Allied Mechanical & Electrical (Cat. 9)

Ames Construction, Inc. (Cat. 11)

Bortner Bros., Inc. (Cat. 10)

Brubaker, Inc. (Cat. 10)

CB Construction Services, Inc. (Cat. 7)

CLARK, Inc. (Cat. 8)

CMC, Inc. (Cat. 10)

Custom Plumbing & Heating, Inc. (Cat. 4)

E.H. Gochnauer & Sons, Inc. (Cat. 7)

Elite Plumbing Heating & AC, LLC (Cat. 7)

Flow Mechanical, LLC (Cat. 7)

Frey Lutz Corp. (Cat. 11)

Garden Spot Mechanical, Inc. (Cat. 9)

George D. Boyer & Sons, Inc. (Cat. 8)

Goodco Mechanical, Inc. (Cat. 8)

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

H.B. McClure (Cat. 14)

Haller Enterprises (Cat. 12)