Vitamins are organic compounds which are needed by an organism in small quantities. There several type of vitamins Vitamin a, Vitamin B complex, Vitamin C, Vitamin D, Vitamin E and Vitamin K. These vitamins are naturally available in food. But sometimes it required taking in the form of medication. There are vitamin manufacturers who supply vitamins. Companies like Pharmatech provide contractual manufacturing of vitamins, herbal products etc. They specialize in making products according to the client’s request. They can supply in any form like tablets, capsules, powder etc.