Armstrong Machine Co. Inc.
Atlantic Screen & Mfg., Inc.
Baker Water Systems Division
Baroid Industrial Drilling Products (IDP)
Bit Brokers International
Bloom Mfg. Inc.
Blue Demon Company, Inc.
Center Rock, Inc. (CRI)
Centerline Manufacturing Company
Cotey Chemical Corp.
Doosan Portable Power
Double Life Corporation
Drill King International
Drill Pipe Inc.
Drilling Equipment Sales (DES)
Drilling Supply & Mfg (DSM)
East West Machinery Exporting, Inc.
Eastern Driller Manufacturing Company, Inc.
Filmark Products, Inc.
Flow Center Products, Inc.
Foremost Industries, LP
GEFCO (an Astec Industries Company)
Geothermal Supply Company, Inc. (GSC)
Givens International Drilling Supplies, Inc.
Infinity Tool Manufacturing
Int'l Show of Public Works, Const., and Mining Mach. (SMOPYC)
Int'l Soc. of Explosives Engineering (ISEE) Annual Conf.
Jentech Drilling Supply, Inc.
KC Bit & Supply
King Oil Tools (an Astec Industries Company)
Kingsland Drill International, Inc.
KS Bit, Inc.
Louisiana Ground Water Association (LGWA) Convention
MARL Technologies, Inc.
Michigan Ground Water Association (MGWA) Convention
Mills Bit Service, Inc.
Mills Machine Company
Mistbushi Materials Corporation
Mountain States Ground Water Expo
MudPuppy International (Tibban Mfg., Inc.)
New England Water Water Well Expo (NEWWA)
Noland Drilling Equipment
North Houston Machine, Inc.
Pacific Northwest Ground Water Expo
Palmer Bit Company
PAPARELLI ALESSANDRO E FIGLIO srl
Qwater Well Development Tools
Rauch Manufacturing, Inc.
Rex McFadden LTD
RLC Bit Service, Inc.
Rotary Drilling Equipment, LLC
Shakti Pumps, Ltd.
Star Iron Works, Inc.
Straightline HDD, Inc.
T&T Carbide Drilling Supply
Thompson International, Inc.
Throop Rock Bit Company
Toney Drilling Supplies, Inc.
Underground Construction Technology (UCT) Int'l. Conf. & Exh.
Utah Ground Water Association (UGWA) Conference and Expo