CAS, a division of the American Chemical Society, is the most authoritative and  comprehensive source for chemical information. CAS databases, including CAS REGISTRY, the gold standard for substance information, are curated and quality-controlled by CAS scientists. Combining these databases with advanced search and analysis technologies, CAS  delivers the most complete, cross-linked, and effective digital information environment for scientific research and discovery through such products as SciFinder, STN, STN  Express, and STN AnaVist, as well as services, such as Science IP.

Nature Publishing Group (NPG) is a publisher of high impact scientific and medical information in print and online. NPG publishes journals, online databases, and services across the life, physical, chemical and applied sciences and clinical medicine. 

Focusing on the needs of scientists, Nature (founded in 1869) is the leading weekly, international scientific journal. In addition, for this audience, NPG publishes the Nature research journals and Nature Reviews journals, plus a range of prestigious academic journals including society-owned publications. Online, nature.com provides over 5 million visitors per month with access to NPG publications and online databases and services, including Nature News and NatureJobs plus access to Nature Network and Nature Education's Scitable.com . 

NPG is a subsidiary of Macmillan Publishers Ltd, a global publishing group founded in the United Kingdom in 1843. Macmillan is itself owned by German-based, family run company Verlagsgruppe Georg von Holtzbrinck GmbH. 

Professionals, researchers, students, and information managers in the scientific and healthcare communities rely on Ovid for the information they need to explore a new theory, fuel a new discovery, inform ongoing research, and improve patient care. We provide customized clinical, research, and educational solutions that help each individual and each organization transform information into knowledge.

Building on 35 years of service, Dialog continues to be the world's leading aggregator of intellectual property content, scientific literature and business information from the most renowned publishers in the industry. Our extensive collections of databases provide immediate, online access to the information you need to support your research with accuracy and precision. Today, as part of ProQuest, a leader in the collection, organization and publishing of information, Dialog combines industry expertise with technology to deliver critical information to decision makers in scientific, legal, government and business markets around the globe.   

The Future Science Group, in partnership with Technomics the exclusive distributor for Japan, is an expanding group of independent publishing companies active in the field of scientific information and endeavour, currently composed of Expert Reviews, Future Medicine and Future Science.

As a leading provider of products and services for the medical, scientific and business communities, we save customers time and money by presenting the most important scientific breakthroughs in an accessible and evaluated format, while at the same time providing the scientific community with unique vehicles for disseminating forward-thinking research information and data.

IOP Publishing is a leading scientific publisher that specializes in physics and related subjects. It is an integral part of the Institute of Physics, an international learned society and professional body, whose mission is to promote the advancement and dissemination of physics worldwide. It publishes more than 60 journals reflect the growth and interdisciplinary nature of scientific research and application, from topics as varied as astronomy, mathematics, the biosciences and, of course, physics. For more information, visit iopscience.org.

J-STAGE(Japan Science and Technology Information Aggregator, Electronic) is the largest e-journal platform offered by JST (Japan Science and Technology Agency), which was designed for Japanese societies. As of September 2010, more than 640 journals are using J-STAGE to disseminate their latest scientific information to the world. More than 95% of articles have English abstracts and you can read 75% of its full-text at FREE.
J-STAGE has also its archive site called Journal@rchive, which covers more than 1M articles now. Selected academic journals scanned through the Electronic Archive Initiative are released from their first issues, including those published in the 19th century. You can get 100% of those at FREE.

Why don’t you visit to J-STAGE now?

JSTOR (www.jstor.org) is a research and teaching platform for the academic community to publish, discover, access, and preserve scholarly content. It is one of the most widely recognized and heavily used online resources among faculty and students, with access provided by nearly 7,000 participating institutions worldwide.

Portico (www.portico.org) is a community-supported digital preservation service providing a permanent archive for e-journals, e-books, and other scholarly e-content. It is one of the most comprehensive digital preservation archives, with nearly 12,000 e-journals and 66,000 e-books on behalf of over 2,000 societies and associations entrusted to it.

Springer Science+Business Media is a leading global scientific publisher of books and journals, delivering quality content through innovative information products and services. It publishes close to 500 academic and professional society journals. Springer is part of the publishing group Springer Science+Business Media. In the science, technology and medicine (STM) sector, the group publishes around 2,000 journals and more than 6,500 new books a year, as well as the largest STM eBook Collection worldwide. Springer has operations in about 20 countries in Europe, the USA, and Asia, and more than 5,000 employees.

Thomson Reuters is the world's leading source of intelligent information for businesses and professionals. We combine industry expertise with innovative technology to deliver critical information to leading decision makers in the financial, legal, tax and accounting, healthcare and science and media markets, powered by the world's most trusted news organization. With headquarters in New York and major operations in London and Eagan, Minnesota, Thomson Reuters employs 55,000 people and operates in over 100 countries. For more information, go to www.thomsonreuters.com.

USACO Corporation is information and contents intermediaries and distributors in Japan market.

Founded originally in 1934, and started again in 1950 after the World War.USACO Corporation has successfully changed their business model from traditional booksellers to information marketing intermediaries.

USACO Corporation is highly specialized in marketing and distribution of biomedical and scientific information products to research and educational communities both in libraries and individuals who all recognize USACO to be a leading company in information age to bridge their information needs with products and services of publishers and research organizations abroad.