Nikkei Financial Research Database is produced by Nikkei NEEDS, which boasts of its biggest size of historical economic data in Japan. With over 40 years of economic data, Nikkei NEEDS has established solid reputation as a skilful database to conduct stock market analyses, credit risks analyses, and quantitative analyses. The database fulfills the needs of a wide range of subscribers from front-offices to back-offices. This database provides you with vast amounts of numerical information, such as data on stock prices, market indices, companies’ financial statements and financing activities, and macroeconomic activities, and makes it easy for you to search for information you need.   [Read More...] 

WRDS is a comprehensive web-based data management system that allows us to retrieve information easily from a wide variety of financial, economic, and market data sources. WRDS is best known for its holdings of historical financial data from CRSP and COMPUSTAT, and also contains stock market indices, bond prices and interest rates, mutual fund and stock ownership information, options data, and a wide array of macroeconomic time series. WRDS provides both a web-based data querying system and a system for computationally intensive batch job processing, plus supported by dedicated staffs that are familiar with the data and academic research. http://wrds.wharton.upenn.edu/

The world’s largest and most respected historical financial numerical database covering an unparalleled breadth of financial instruments, equity and fixed income securities, and macro economic indicators. It offers sophisticated yet flexible analysis and charting facilities, and a powerful set of add-ins that enable the data and charts to be dynamically retrieved and manipulated within Microsoft Office applications.

Olsen Financial Technologies is the provider of one of the world’s largest databases of tick-by-tick prices for financial institutions
and researchers alike. Our goal is to provide clients with the
highest quality; filtered, financial data and related technology including high-frequency data for fx, futures, interest rates
and other markets.

The Bloomberg Professional service is the serious choice for the financial professional. Simply put, it is our core business: a revolutionary interactive financial information network that has become an integral way of understanding global financial markets. Available 24 hours a day to more than 260,000 professionals in more than 125 countries, the Bloomberg Professional service seamlessly integrates data, news, analytics, multimedia reports and e-mail onto a single platform. It is used by market professionals around the world to make informed decisions and to complete transactions in any currency.
http://www.bloomberg.com/professional/