• I. Q. Prokem
  (ES)

  ---

• Ian Wark Laboratory
  (AU)

  ---

• IBACON GmbH
  (D) [D, E]

  ---

• IC Trading
  (USA)

  ---

• ICC
  Indofine Chemical Company (USA)

  ---

• Ichemco s.r.l.
  (IT)

  ---

• ICI
  (UK)

  ---

• ICI India Limited
  (IN)

  ---

• ICI Klea
  now: Ineos Fluor (UK)

  ---

• ICI Paints Ltd.
  now: Dulux (UK)

  ---

• ICIS On-line
  (UK)

  ---

• Idee GmbH - AVDS
  (D) [D]

  ---

• ID-Group Füssen
  (D) [D]

  ---

• IKN Ingenineur - Planungs GmbH
  (D) [D]

  ---

• ILK Dresden
  (D) [D, E]

  ---

• Ilmvac GmbH
  (D) [D, E]

  ---

• IMCOR GmbH
  Independent LIMS-Consulting (Laboratory-Information- and Management Systems) - Software and Services for laboratory automation and quality assurance - Project management for IT-projects in labs and production - Computer systems validation (D) [D]

  ---

• Imkemex India Limited
  (IN)

  ---

• Immundiagnostik AG
  (D) [D, E]

  ---

• Immunos
  (USA)

  ---

• Immunotec Research Ltd.
  (USA, CA) [E, F]

  ---

• IMPAG
  (D) [D]

  ---

• Imperial Chemical Industries PLC
  ICI (UK)

  ---

• Imperial Oil
  Esso (CA)

  ---

• Implant Sciences
  (USA)

  ---

• Impocolor
  (D) [D, E]

  ---

• Incyte Genomics
  (USA)

  ---

• Indesso
  (ID)

  ---

• Ind-Expo Oleochemicals P. Ltd.
  (IN)

  ---

• Indian Petrochemicals Corporation Limited
  IPCL (IN)

  ---

• Indigo Instruments
  (USA)

  ---

• Indofine Chemical Company
  (USA)

  ---

• Indoworld Trading Corporation
  (IN)

  ---

• Induchem
  (CH) [E]

  ---

• Indukern Chemie AG
  (CH) [E]

  ---

• Industick
  Brenntag (D) [D, E]

  ---

• Industria del Alcali
  (MX)

  ---

• Industrial Adhesives
  (USA)

  ---

• Industrial Quimica de Mexico S.A.
  (MX)

  ---

• Ineos Fluor
  [E]

  ---

• Inex Pharmaceuticals Corporation
  (CA)

  ---

• InfoChem GmbH
  Software company for chemoinformatics specialised in the development of chemistry software tools used for handling and retrieval of structures and reactions. Distributes the chemistry database SPRESIweb (D) [D, E]

  ---

• Infodyne
  (F)

  ---

• InfraLeuna
  Brenntag (D) [D, E]

  ---

• Inkometal AG
  Supply, distribution and marketing of raw materials and finished products throughout Europe (CH) [E]

  ---

• Inkware
  (USA)

  ---

• Innovex Biosciences
  (USA)

  ---

• Innua Petrochem
  (USA)

  ---

• Inotech
  (CH)

  ---

• Inpack - Packaging & More
  (D) [D]

  ---

• Inspec Group
  now: Laporte Performance Chemicals (UK)

  ---

• Inspire Pharmaceuticals Inc.
  (USA)

  ---

• Institut für Mikrotechnik Mainz GmbH (IMM)
  IMM (D) [D, E]

  ---

• Instruments S.A
  now: JY Horiba (USA)

  ---

• Instruments S.A. Ltd.
  now: Jobin Yvon (UK)

  ---

• IntelliSense Co.
  Corning IntelliSense (USA)

  ---

• Interactiva - The Virtual Laboratory
  (D) [E]

  ---

• Intercat
  (USA)

  ---

• Interchem
  (USA)

  ---

• Intercorr
  (USA)

  ---

• Intergas
  (UK)

  ---

• International Scientific Products Exchange
  ISPE (CA)

  ---

• International Specialty Products
  (USA)

  ---

• International Tin Research Institute
  ITRI Ltd. (UK)

  ---

• Interor S.A.
  (F) [E, F]

  ---

• Interorgana
  (D) [D, E]

  ---

• Interpolymer
  (D) [D, E , F]

  ---

• Intersan
  now: Ispen Parma GmbH (D) [D]

  ---

• Intrade
  (RU)

  ---

• Invekta Green AB
  (SE)

  ---

• Inventus Biotec
  (D)

  ---

• InVitro Technologies Inc.
  (USA)

  ---

• Invitrogen
  (USA)

  ---

• Ion Dynamics
  (USA)

  ---

• Ion S. A.
  (ES)

  ---

• ION Science
  (USA)

  ---

• IPCL
  Indian Petrochemicals Corporation Limited (IN)

  ---

• Isis Puren
  now: Alphapharma-Isis (D) [D]

  ---

• Isoplus Group
  Industrial pipes (D) [D, E]

  ---

• Isotec
  Sigma-Aldrich

  ---

• Isotopchim
  (F)

  ---

• ISP
  International Specialty Products (USA)

  ---

• Italgas Gruppo
  (I)

  ---

• ITAlliance
  ... is a research and development company specializing in custom syntheses of organic compounds and projects involving contract research (USA) [E]

  ---

• IUL Instruments
  (USA)

  ---

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