- National Research & Chemical
- National Research Corp
- National Starch & Chemical Co
- National Starch & Chemical Co
- Natland International Corp
- Nature Solutions
- NCF Mfg Inc
- Nemours Health & Prevention
- Neo Technologies
- Neutron Products Inc
- New Chem
- New England Peptide
- New Mexico Salt & Minerals
- Newchem Inc
- Newmarket Corp
- Newpark Drilling Fluids
- Niacet Corp
- Nihon Nohyaku
- Nilok Chemical Inc
- Nissan Chemical America Corp
- Nissan Chemical Houston Corp
- Nisso America Inc
- Nochar Inc
- Norac Inc
- NORLAB
- Norphlet Chemical Inc
- North American Oil Co Inc
- NORTH American Salt Co
- North Central Gem & Minerals
- Northern Chemical Blending
- Nottingham Co
- Nova
- Nova Chemcial Inc
- Nova Molecular Technologies
- Noveon Inc
- Noveon Inc
- Noveon Inc
- Noveon Inc
- Noveon Inc
- Noveon Inc
- Noveon Inc
- Noviant Inc
- Novus International Inc
- Nu Tech Corp
- Nycote Labs
- O-N Minerals
- Occidental Chemical Corp
- Occidental Chemical Corp
- Occidental Chemical Corp
- Oci Wyoming LP
- OCTEL America Inc
- Odom Industries
- Odom Industries
- OHKA America Inc
- Oil Center Research LLC
- Oil-Dri Corp Of America
- Oil-Dri Corp Of Georgia
- Olathe Potato Growers Co-Op
- Olathe Potato Growers Co-Op
- Old Bridge Chemical Inc
- Olin Chlor Alkali Products
- Olin Chlor-Alkali Products Div
- Olin Corp
- Oliver Sales Co
- Olympic Chemical Corp
- Olympic Laboratories Inc
- OM Group Inc
- OMG Fidelity Inc
- OMNOVA Solutions Inc
- OMNOVA Solutions Inc
- OMNOVA Solutions Inc
- OMNOVA Solutions Inc
- Online Packaging Inc
- Operators Unlimited
- Or-Cal Chemical Co
- Orange-Sol Ind Products Inc
- Orchem Corp
- Organic Technologies Inc
- Organichem Corp
- Organichem Corp
- Organometallics Inc
- Osmonics/Autotrol
- Owings Modifiers Inc
- Ozark Fluorine Specialities
- P Kay Metal Inc
- P Q Corp
- P Q Corp
- P Q Corp Specialty Chemical
- P S Chemical Corp
- Pace Processing
- Pacific Products
- Pacific-Standard Specialties
- Pacifica Chemical Inc
- Packaging Service Co
- Pantheon Chemical Inc
- Panther Industries Inc
- Panther Industries Inc
- PAR Industries Inc
- Para-Chem Standard Div
- Parchem Trading LTD
- Paul Schueller Intl
- Pavco Inc
- Pavernite Inc
- PBI Gordon Corp
- PCI Of America
- PCS Purifies Phosphates
- Peach State Labs
- Peak Energy Group
- Peak Sulfur Inc
- Pearl River Polymers Inc
- Pearson's Tech Of Ms Inc
- Penn Specialty Chemicals Corp
- Pepsi Bottling Group
- Pequa Industries
- Perform Manufacturing Inc
- Perk Products & Chemical Co
- Perkins Rouge & Paint Co
- Perma Inc
- Permuthane Coatings
- Petra Chemical Co
- Petrofarm Inc
- Petruj Chemical Distributors
- Pflaumer Brothers Inc
- Pharmasyn Inc
- Phibro Animal Health Corp
- Phibro-Tech Inc
- Philchem
- Phoenix Chemical Co
- Phoenix Chemical Inc
- Photographer's Formulary Inc
- Piedmont Chemical Industries
- Pierce Milwaukee Inc
- Pilot Chemical Corp
- Pilot International Inc
- Pinova-Div Of Hercules
- Plasmine Technology
- Plasmine Technology Inc
- Plating Process Systems Inc
- Plating Technologies Inc
- Platte Chemical Co
- Platte Chemical Co
- Poly Tech Inc
- Polyad Services
- Polymer Valley Chemicals Inc
- Polyset Co Inc
- Polyset Co Inc
- Poong Lim USA
- Power Chemical Co
- Power Line Chemicals & Equip
- Power Service Products Inc
- PPG Industries Inc
- PPG Industries Inc
- PPG Industries Inc
- PPG Industries Inc
- PPG Industries Inc
- Praxair Inc
- Precision Technology
- Premier Chemicals
- Premier Chemicals LLC
- Prentiss Inc
- Preserve International
- Preserve International
- Primachem
- Private Label Products Inc
- Pro Chem
- Pro Chem Chemicals Inc
- Pro Chem Products Inc
- Pro Line Ind Chemical
- Pro-Serve Inc
- Process Chemicals
- Process Solutions
- Production Chemical Mfg Inc
- Production Services
- Program Wholesale Industries
- Proligo LLC
- Protreat Technology Corp
- Proviron America Inc
- Pumex Inc
- Purification Technology Inc
- PVS Chemicals Solutions Inc
- PVS Technologies
- Pylam Products Co Inc
- Qsi
- Quaker Chemical Management Div
- Qualichem Inc
- Qualis Veterinary Products
- Quality Chemical Co
- Quality Controlled Biochem
- Quantaphy
- Quasar Corp
- Ques Industries Inc
- R H Buckman & Assoc
- Raichem
- Ramsey Group Inc
- Ravan Equipment
- RBP Chemical Corp
- Reaction Products Co
- Red Bird Svc
- Red Line Inc
- Red Rose Intl
- Reef Chemical Co
- Reef Chemical Co Inc
- Reeves Brothers Inc
- Reheis Inc
- Reilly Industries Inc
- Reilly Industries Inc
- Reilly Industries Inc
- Rem Chemicals Inc
- Remesat Laboratories USA
- Remesat Laboratories USA
- Research Technology
- Resource Innovations Inc
- Restoration Chemical
- Revive Inc
- RGA Enterprises
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Rhodia Inc
- Riba Fairfield
- Ricca Chemical Co
- Ricca Chemical Co
- Riteks Inc
- Riteks Inc
- Rivers Run
- Rlm & Sqg Industries Inc
- Rohm & Haas Advanced Materials
- Rohm & Haas Co
- Rohm & Haas Electronic Mtrls
- Rohm & Haas Electronic Mtrls
- Rohr Chemicals
- Roly International
- Romic Southwest
- Roofing Wholesale
- Rowland Chemical Co
- Royal Chemical
- Royal Chemical Co
- Royster Clark Inc
- Royster-Clark Inc
- Royster-Clark LLC
- Royster-Clark LLC
- RSA Corp
- Rtd Hall Star Inc
- Rubicon Inc
- Rubicon Inc
- Ruetgers Organic Corp
- Ruetgers Organic Corp
- Russell Chemical Sales & Svc
- Rutherford Chemicals LLC
- Rycoline Sun Graphic
- Rycoline Sun Graphic
- Rycoline Sun Graphic
- Ryder Chemical
- Ryscor Science Inc
- S & S Co Of Georgia Inc
- S & S Supplies Inc
- S & S Tool & Supply Inc
- S A Day Mfg Co
- S I Shield Technology
- Saber Chemical Co
- Sachem Inc
- Sachem Inc
- Sachem Inc
- Safe Chem Inc
- Safe Materials Inc
- Safe-N-Clean Corp
- Sartomer Co
- Satellite Chemical Systems
- Schaefer Technologies Inc
- Schenectady International
- Scholle Corp
- Schumacher Co
- Scientific Absorbents Inc
- Scientific Polymer Products
- Scotch Plaid Inc
- Scott Chemical Co
- Scott's Specialty Gases
- Se Pro Corp
- Seacon
- Seal Peel Inc
- Searles Valley Minerals
- Seco-Dyne
- Selig Chemical Industries
- Selig Chemical Industries
- Senergy LLC
- Sentinel Chemical Co Inc
- Sentury Reagents