About Mann

Cornell University, Albert R. Mann Library

Albert R.
Mann Library

(607) 255-5406

Mann Library supports the instruction, research, and extension programs of Cornell University's College of Agriculture and Life Sciences and College of Human Ecology.

No matter where you are in the research process, we encourage you to ask for information consulting services. Email us your question or request a consultation. Reference librarians are here to assist.


Company and Financial Research

Public companies will almost always have a lot more information available (including much more detailed financial information) than private companies.  On the other hand, there are far more private companies than there are public companies.  Most company research tools either have extensive company profiles (but fewer company's listed), or brief company profiles (and millions of companies listed). 

Public company research tools will sometimes list private companies, but they usually only include the largest of private companies.  Additionally, private company research tools will include public companies, but the profiles will be far less extensive than they would be in a public company research tool.

Because of all of this, we recommend that you use different resources when you're conducting public company research than when you're conducting private company research.

Public Company Research


Private Company Research


Bloomberg is a powerful and customizable financial Research tool with data for almost all publicly traded companies around the world, trading data for commodities, currencies, bonds, treasuries and notes, news, executive information and much more.  Bloomberg is also one of the few resources that provides detailed and extensive historical securities data, often down to individual ticks. 

Mann has 3 Bloomberg terminals located on the main level in the computing area (in the Business Resources section).  Bloomberg terminals can also be found in the Management Library, the Hotel Library and the Law Library.

For more information on how to use Bloomberg, take a look at the Management Library's Guide on "How To: Bloomberg".


Datastream is a massive source of current and historical financial data.  The amount and type of data is similar to what you would find in Bloomberg, but there are fewer use and download restrictions, meaning Datastream will usually be a better option for large data downloads.  Datastream is limited to specific terminals across campus, including a single terminal in the "Business Resources" section on the main floor of Mann Library.

Please contact a librarian if you're interested in using Datastream.


Wharton Research Data Services (WRDS) is a host for a variety of sources of current and historical Business Data.  While the data are extensive, there are use restrictions to WRDS. 

Please contact a librarian if you're interested in downloading large quantities of Business data.