A.C. ROCHESTER/GENERAL MOTORS

A.W. CHESTERTON CO.

ABBOTT LABS

AIR PRODUCTS & CHEMICALS

ALLIED SIGNAL

AM PIPE FAB

AMERICAN BECHTEL

AMOCO CHEMICAL COMPANY

AMOCO OIL COMPANY

AMPOL

AMVAC CHEMICAL CORPORATE

ARAMCO SERVICES CO.

ARCO

ARCO CHEMICAL CO.

AREVA

ARGO INDUSTRIAL

ARGO INTERNATIONAL

ATLANTIC CITY ELECTRIC

AUSTRALIA NUCLEAR SAFETY ORG

BAYER/FLOUR DANIELS

BAYWAY REFINING COMPANY

BEAR ISLAND PAPER CO.

BECHTEL CORPORATION

BECHTEL POWER CORPORATION

BELL HELICOPTER

BETHLEHEM STEEL CORPORATION

BETTIS NUCLEAR LAB

BEXAR EQUIPMENT CO.

BHP BILLITON

BOEING

BOISE CASCADE

BORDEN CHEMICAL

BRITISH PETROLEUM OIL COMPANY

C HUDSON GAS & ELECTRIC

CAMBRIDGE UNIVERSITY

CARGILL, INC.

CASTLETON BEVERAGE

CELANESE CHEMICALS

CENTERLINE MECHANICAL

CENTRADE INT'L (EXXONMOBIL)

CENTRALE NUCLEAIRE DE DOEL

CHEVRON

CHEVRON TEXACO

CHURCH & DWIGHT CO., INC.

CINCINNATI GAS & ELECTRIC

CISCO MARTINUS

CITGO PETROLEUM CORP.

CITGO REFINING

CITY OF HOUSTON

CLIMAX MANUFACTURING

CLYDE PETROLEUM EXPLORATION

COASTAL REFINING

COMED POWERTON

CONNECTICUT RESOURCE RECOVERY

CONOCO PHILLIPS

CONSOLIDATED EDISON OF NY

CRANE COMPANY

CRAWFORD FITTING CO.

CRYSEN REFINERY

DAISHOWA AMERICAN

DAKATO GASIFICATION

DIASONICS, INC.

DIAVIK DIAMOND MINES

DOW CHEMICAL

DOW CORNING

DUPONT

DURIRON COMPANY

DYNO NOBEL, INC.

E.I. DUPONT

EASTMAN CHEMICAL

ELF ATOCHEM

ELI LILLY & COMPANY

ELKEN TECHNOLOGY, INC.

ENCOR-AMERICA

ENGELHARD INC.

ENTERPRISE PRODUCTS CO.

ENVIRONMENTAL & ENERGY

EQUILON ENTERPRISES

EQUISTAR CHEMICALS

EXXONMOBIL 

FARMER'S MARINE COPPER

FERN ENGINEERING

FINA

FINCH, PRYUN & CO., INC.

FLEXENERGY, LLC

FLORIDA POWER & LIGHT

FLOUR DANIEL

FLOWMATICS / BRUCKNER

FLOWSERVE PUMP DIV.

FOLSOM (BARRICK GOLDSTRIKE)

FRAN RICA REFINING

FRANK D. RIGGIO CO., INC.

FREBCO

FRENCH AVIAN

FRENCH EMBASSAY NAVAL

GAS LIQUIDS ENGINEERING LTD.

GATEWAY PUMP & MIXER

GE -  HOUSTON

GE - S&S ENERGY

GE ENERGY PRODUCTS

GENEVA STEEL

GLOBAL OCTANES

GOLD BOND BUILDING

GOULDS PUMPS, INC.

GREAT LAKES FABRICATING

HALLEY + MELLOWES GROUP

HARCO EQUIP (PARSONS EXXON)

HEMCOR AUSTRALIA

HENKEL CORPORATION

HERCULES, INC.

HIMIC CO.

HOECHST CELANESE

HOFFMAN - LA ROCHE

HYDRO GROUP INC.

I.P. AETNA

ICI ACRYLICS

IMPERIAL OIL

INTERSTATE PUMP & MACHINE

IRECO INC.

JAKE HARRIS & SONS INC.

JAMES RIVER CORPORATION

JOSEPH JINGOLI & SON

KANSAS CITY POWER & LIGHT

KETCHIKAN PULP

KEYSTONE SALES, INC.

KIRK & BLUM

KIRKWOOD

KLAUS UNION, INC.

KOCH REFINING CO.

KRUEGER ENGINEERING

KUBOTA CORP.

KVAENER PROCESS

LA DEPT. OF WATER & POWER

LA ROCHE CHEMICAL

LAKE UTOPIA PAPER

LAUREN CONSTRUCTORS

LAWRENCE ENERGY

LEM CONSTRUCTION

LG&E POWER

LILLY ENGINEERING

LONG ISLAND LIGHTING

LYONDELL - CITGO PETROLEUM

MACMILLAN BLOEDEL

MADISON GAS & ELECTRIC

MAP ROBINSON

MARATHON PETRO

MASONITE

MERCK & CO.

MERICHEM COMPANY

MILES, INC.

MISSOURI MACHINERY

MOLLERUS ENG.

MONROE CTY WATER AUTH.

MORTON MACHINE WORKS

NASA ASRC AEROSPACE

NATL. CHENG KUNG UNIVERSITY

NAVAJO REFINING CO.

NEVADA POWER

NEXEN INC.

NINE MILE POINT NUCLEAR

NOVUS INTERNATIONAL, INC.

NY STATE ELECTRIC & GAS

OCCIDENTAL CHEMICAL

ONYXENG

ORICA

ORMAT

OXY VINYLS

PACIFIC GAS & ELECTRIC

PENNSYLVANIA POWER & LIGHT

PEPSCO

PETROLEUM EQUIPMENT SALES

PFIZER, INC.

PG&E

PROCESS EQUIPMENT

PURITAN BENNETT

RALPH M. PARSONS CO.

RANDLE MILLER

REFINED SUGARS, INC.

REGIONAL WASTE SYSTEMS

REPUBLIC SUPPLY CO.

RF MACDONALD

ROCHESTER DISTRICT HEATING

ROHM & HAAS

SABIC

SALADIN PUMP

SALATY SYNERGY

SANTOS

SHELL ALBIAN SANDS

SHELL CANADA

SHELL CHEMICAL

SHELL OIL COMPANY

SHUPE & ASSOCIATES

SOUTH AM CORP.

SOUTHERN CALIFORNIA EDISON

SOUTHWEST INDUSTRIAL CONCEPTS

SPS TECHNOLOGIES

STANISLAUS FOOD PRODUCTS

STAR ENTERPRISE

STEPAN CO.

STEWART & STEVENSON

SUITT CONSTRUCTION

SUNCOR ENERGY INC.

SUNOCO 

SYNCRUDE CANADA

TENNESSEE EASTMAN

TEXAS PETROCHEMICALS

THE GEON CO.

THOMAS PUMP

TIGERFLOW

TOSCO PETRO

TRIFLOW SPECIALTIES

TU ELECTRICAL

UNCLE BEN'S OF AUSTRALIA

UNION ELECTRIC

UNITED TECH. RESEARCH CTR.

UNITIED REFINING COMPANY

VIRGINIA FIBRE

WELLMAN

WESCO MOBIL

WESTBURNE INDUSTRIAL

WESTCOAST ENERGY

WESTINGHOUSE  COMPANY

WHITTAKER CONTROLS

WILLAMETTE INDUSTRIES, INC.

WITCO/ENENCO

WOODWARD GOVERNOR CO.

YEARY & ASSOCIATES

YORK INTERNATIONAL