000101 K-TEK
000102 KNICK
000103 MOBREY
000104 METROVAL
000105 Microcyber Corporation
000106 Enertork LTD.
000107 KEM Kueppers
000108 ISE-MAGTECH
000109 SAIC
000110 Forbes Marshall
000111 TURCK
000112 NPK VIP
00012C KROHNE
000131 DREHMO GmbH
00014D Rockwell Automation
000156 Magnetrol International
000188 Tefulong Group Co., Ltd.
0001BF Valmet Automation
0001DC Detcon
0001F4 R. STAHL SCHALTGERAETE
0001FD Fieldbus Diagnostics LLC
000211 Heinrichs Messtechnik
000212 CQSIC Co., Ltd
000220 Sierra Instruments
000246 Brooks Instrument
000302 SMAR
000309 Fuji Electric Co., Ltd.
000310 Micro Motion, Inc.
000313 Dandong Top Instrument
000320 ABB
000346 Power-Genex Ltd.
0003E8 SHIP STAR
00043E OVAL Corporation
000457 Ohmart/Vega Corp
0004D2 Fisher Rosemount Per Tc
0006B0 WIKA
000777 Relcom, Inc.
0007B0 Moore Industries
0007D0 PR Electronics
0007D1 NOHKEN INC.
000888 SUPCON
0008F0 DET-TRONICS
00094A Koso Service Co., Ltd.
00094B Rexa, Koso America
000993 Hollysys
000A1C Anderson Instrument Co.
000C07 NAIQI
000DDF BONRAY
000E05 Metso Flow Control Inc
001000 Beck, Harold & Sons
001151 Rosemount Inc.
001167 Dynamic Flow Computers
001988 Hawk
001D6D Hach Company 
002000 EIM CONTROLS
0021C3 Buerkert
0022B8 HuaKong Technology
002B72 TLV CO., LTD.
003000 HMS Industrial Networks
004000 BERNARD
004241 BEKA Associates
004549 EnVision Instruments
004649 Fieldbus Inc.
004745 General Electric
004C65 Leyden Engineering
005100 Fisher Controls
005754 Welltech
005774 StoneL
00A000 Fieldbus International
00A1FF BERTHOLD TECHNOLOGIES
00E099 SAMSON AG
00F302 SPIRAX SARCO ITALY
00FF01 ROTORK
010253 M-System
012FD1 Young Tech
014A7E VALTEK INTERNATIONAL
015F34 Vautomat
01B20B TERRANOVA
01FC49 FLUID COMPONENTS INTL
024604 Rohrback Cosasco Systems
038CBF Beamex Oy Ab
05E35D Limitorque Co.
083000 SMC Corporation
0A01FF AUMA
0A4383 Bifold Fluidpower Ltd.
0B87A3 ELOMATIC INTERNATIONAL
0BDE31 MTS Sensors
0BE0EC Eaton MTL Products
0C1DC0 Cidra Corporate Services
0DFC96 Azbil Corporation
10A1C0 TOKYO KEISO CO., LTD.
10FF00 Fieldbus Foundation
10FF01 Noah Actuation Co., Ltd.
116045 ifak system GmbH
1E6D11 Softing AG
212121 APAT
31FF52 Ronan Engineering
36AEC2 Fluenta
385884 Invensys
385885 Limitorque Corporation
4000FF optek-Danulat
41434C ASCO Controls, LP
41524D RESERVED
424946 Biffi Italia srl
42544D RESERVED
43414D Cameron
435349 CSI
445343 Duon System Co., Ltd.
445644 Dresser Valve Division
44594E Dynisco
452B48 Endress+Hauser
454E4F ENOTEC GmbH
464C4F Flowserve/Automax
464C53 Flowserve
464C58 Flexim
465253 Fisher Rosemount Systems
465255 METTLER-TOLEDO
465354 FESTO BRASIL LTDA
466847 Fraunhofer IITB
474545 RESERVED
475343 RESERVED
47E86B Sense Eletronica LTDA
484F45 Hoerbiger
48574C Honeywell
4C444E Dresser Italia S.p.A.
4D5043 Moore Products Co.
4D5552 RESERVED
4E4943 National Instruments
4E4956 RESERVED
4E5246 Enraf
4E554D Numatics Inc
502B46 Pepperl+Fuchs
507843 Phoenix Contact
520000 Draeger
524149 Rosemount Analytical Inc
524153 EPMRAS
524B4B RKK
534147 SIEMENS AG
534354 RESERVED
534B46 RESERVED
535354 RESERVED
544653 Thermo Fisher Scientific
544A4D Tracerco Ltd.
545758 TopWorx Inc.
564142 Bettis
564143 Bettis Canada
564144 Valve Automation Div.
564153 Shafer
564154 Dantorque
56474B VEGA
574343 Westlock
575353 CRANE
594543 Yokogawa Electric
600200 TRICOR Coriolis
61636D AMFLOW
77E1A5 Chemtrac Systems, Inc.