A&D Technology
FTIR gas analyzers optimized for on-board and for test cell use—Test cell automation—Combustion analysis

Altech Environment USA
Engine exhaust gas analyzers and analysis systems—FTUV NH3 analyzer

Development of powertrain systems—Engine instrumentation and test systems—Emission analysis systems—Advanced simulation technologies

Cambustion Ltd.
Fast emissions analysers—Automotive emissions consultancy, development and testing

Sensors, Inc.
Portable emissions measurement systems (PEMS)—SEMTECH ECOSTAR emissions analyzers—Emissions testing services

Sierra Instruments, Inc.
BG3 partial flow PM sampling systems—Soot mass measurement—Engine intake air mass flow meters—Filter handling solutions

Robert H. Wager Co., Inc.
Diesel smoke opacity meters and smoke indicators for diesel trucks, buses and marine applications

Able EmissionsUSA
AEM Systems Inc.Canada
Air Instruments & Measurements, Inc.USA
Altech Environment USAUSA
Analygas SystemsCanada
Analytical Process SystemsUSA
Argus Environmental MonitoringUSA
Artium Technologies, Inc.USA
Atmo-Seal Engineering, Inc.USA
AutoLogic LLCUSA
California Analytical Instruments, Inc.USA
Cambustion LimitedUK
Classic Filters Ltd.UK
Clean Air Technologies International, Inc.USA
Climatic Testing Systems, Inc.USA
Conspec Controls Inc.USA
Datatest Industries, IncUSA
De Jaye Technologies, LLCUSA
Dekati Ltd.Finland
Detroit Flexible MetalUSA
EcoChem AnalyticsUSA
Ecom America Ltd.USA
Environnement S.AFrance
EnviroServ, Inc.USA
Galio Industrial Development Co.Canada
Global Emission Testing ProductsUSA
Green Instruments A/SDenmark
GRIMM Aerosol Technik GmbH & Co.KGGermany
Hartridge Test ProductsUK
Headline Filters Ltd.UK
Horiba Ltd.Japan
J.U.M. Engineering GmbHGermany
Jing Ltd.Switzerland
K2BW Environmental Equipment Co.USA
Magee Scientific CompanyUSA
MAHA Maschinenbau Haldenwang GmbH & Co. KG.Germany
Matter AerosolSwitzerland
Met One Instruments Inc.USA
Mettler-Toledo AGSwitzerland
MKS Instruments, Inc.USA
MS4 AnalysentechnikGermany
naneos Particle Solutions GmbHSwitzerland
Neptech IncUSA
Netel ChromatographsIndia
Nicolet Instrument CorporationUSA
Nova Analytical Systems Inc.Canada
Novatech Controls, Inc.Canada
Optomonitor Inc.USA
Palas GmbHGermany
Parker ProcalUnited Kingdom
Pegasor Oy (Ltd)Finland
rbr Messtechnik GmbHGermany
Sensors Inc.USA
Shimadzu CorporationJapan
Siemens Energy & Automation, Inc.USA
Sierra Instruments, Inc.USA
Signal Group Ltd.UK
SPX Emission Test SolutionsUSA
Tecnotest S.r.l.Italy
Telonic Berkeley, Inc.USA
Testo AGGermany
Thermo ScientificUSA
TSI IncorporatedUSA
United Filtration Systems, Inc.USA
V&F Analyse- und MesstechnikAustria
Wager, Robert H., Co., Inc.USA
Webber EMI Inc.USA