ACCES I/O Products, Inc.

Accurate Gas Control Systems, Inc.

Advanced Custom Sensors, Inc.

Advanced Photonics, Inc.

Advanced UV, Inc.

Air Preheater Co.

Airfiltronix

AIV

Alexander Wiegand GmbH

Alpha Omega Instruments Corp.

Alzeta Corp.

Analytical Measurements

Analytical Technology, Inc.

Ansul Incorporated

AP Tech (Advanced Pressure Technology)

Applied Energy Systems, Inc.

Aquionics, Inc.

Ashcroft Inc.

ATV Technology Inc.

Automation Products Group Inc.

Automation Products, Inc.

Barnant Co.

Best Manufacturing Co.

Bionics Instrument Europe B.V.

Biotest

Bosch Security Systems

Bronkhorst High-Tech B.V.

Celestica

Hach

Hach

Hach Company

Heatron

Hemco Corporation

Hesse & Knipps Semiconductor Equipment GmbH

Hiden Analytical, Inc.

IBM Corporation

IMV Corporation

Industrial Fiberglass Specialties, Inc.

Industrial Waste Utilization, Inc.

Integrated Control Concepts, Inc.

Integrated Time Systems

Interlab, Inc.

International Sensor Technology

iUltrasonic

JC controls

Johnson Matthey

Kahn Instruments, Inc.

Kathabar, Inc.

K-Patents Oy

Lazar Research Laboratories, Inc.

Liburdi Dimetrics Corp.

Lighthouse Worldwide Solutions

M. Braun, Inc.

Nisshin Gulf Coast

SAES Pure Gas, Inc.

Safety Equipment Corporation

Schneider Electric

Scientific Technologies Inc.

Scott Instruments, Inc.

Semiconductor Equipment Manufacturing, Inc.

Solid State Cooling Systems

Triumph Instruments Burbank

Verantis - Environmental Solutions Group