MG Piping

Microfinish Valves, Inc.

Microphor

Midland Metal Mfg.

MIFAB

Miller Brooks

Mills Iron Works

Milwaukee Valve

Mincron

Miro Ind.

Mission Rubber Company

MITS

Morsco

MovinCool

MPG Tech. Services

Mr. Rooter

MRC

MS Tube and Iron

Multalloy

Murdock Manufacturing