- Oxiteno - Chemical specialties on the agrochemical, foodstuffs, cosmetic, leather industry, detergent, packing for beverages, polyester filaments and fibers, brake fluids, petroleum, paint and varnish industries.
- Overall Supply - Automotive, industrial, and other products.
- Ottsen Oil - Iowa-based distributor of Amoco and Chevron lubricants and related products.
- O' Rourke Petroleum Products - Petroleum products distribution.
- Orion Industries - We are committed to solving engineering problems with applied functional coatings. We are licensed to apply a wide range of liquid and powder coatings.
- ORFE International Trading - International trading with petroleum, chemical, agriculture and food products. Mazut, Diesel, Fertilisers, Crude oil, Sunfower seed, sunflower seed oil are the main items.
- Orchard Products - We are one of the midwest' s premier chemical companies. Orchard Products offers a wide range of chemicals and services for your operational needs. We provide custom chemical formulations and can help you set up a powder coating line.
- OMNOVA Solutions - Innovator of performance chemicals and decorative and building products.
- Fine Organics - Fine Organics is a leading producer of oleochemical derivatives and specialty chemicals.
- OKS - The specialist for high-performance speciality lubricants produces and distributes pastes, oils, greases, dry lubricants, corrosion protection and maintenance products.