Business: Lists of Companies:
-- Make a List, or Get Popular Lists

Make A List of Companies
 

Mergent Intellect
Geography: Global
Public and private company information (as available) for companies worldwide.  Advanced Search allows for creating a custom Excel spreadsheet of companies based on criteria like industry, location, size, etc. Mergent Intellect replaces Hoovers Pro.  Data for both Mergent & Hoovers comes from Dun & Bradstreet (D&B).

• Mergent Intellect uses NAICS codes.
• Learn this search!  << sample search for "medical device" manufacturers in Orange County

Uniworld
​Geography: Global
A global directory in which every company within the database has at least one foreign subsidiary.  Finds both US firms operating in foreign countries, and foreign firms operating in the US.  Searchable on criteria including: industry, employee count, revenue, etc.  Uniworld also features a "career postings" search option, which is a yes/no indicator that the company has a link on its own website for its own career opportunities.  

• Uniworld uses NAICS codes.  
• Learn this search! 

S&P Capital IQ  *(Current UCI students, faculty, & staff)
Geography: Global
A comprehensive company intelligence database, offering granular financial and capital structure information on millions of companies worldwide.

• Screening [tab] >> Companies >> Select or Search for Criteria.  
  Under the top Help menu, you'll find a phone number, and a representative (available 24/7) can walk you through screening for a list of companies.  

GuideStar
GuideStar specializes in nonprofit company intelligence.  Its covers 2.7 million nonprofits and it features: Current financial data, IRS forms, and visualizations of financial trends for nonprofits.  A directory to search for nonprofits by size, cause, and location.  A directory to search for people in leadership roles at nonprofits.

Get Popular Lists* of Companies

Orange County Business Journal: Book of Lists
The Book of Lists supplement issue is simply a compilation of all lists published by OC Business Journal during the previous year. 

Business Source Complete
Geography: Global
This database includes Fortune Magazine.  This custom url finds the issues with Largest U.S. Corporations in the title, i.e. what Fortune officially calls its Fortune 500 list. 

• Select PDF Full Text to explore inside the magazine.  Fortune magazine also breaks down the 500 by industry and by state. 

S&P Capital IQ  *(Current UCI students, faculty, & staff)
Geography: Global
A comprehensive company intelligence database, offering granular financial, executive, and activity information on millions of companies worldwide. 

• Look up the name of an index, e.g. the Dow Jones Industrial Average, S&P 500, etc. to see and export the current (not historic) list of constituent companies. 
  Learn this search!
   
• Use the Markets tab > Industries for lists of the top US public companies, including ratio data, across these sectors:
  Analysis, Energy, Materials, Industrials, Consumer Discretionary, Consumer Staples, Health Care, Financials, IT, Communication Services, Utilities, and Real Estate
   
• The Idea Generation Screens feature premade filters for 200+ company characteristics.  
  Learn this search!

Accounting Today 
Located within the Business Source Complete database, it produces an annual spreadsheet of the Top 100 Firms, with basic data on Revenue, Personnel, and Fee Splits. 

• Learn this search!

*There are dozens of company lists, produced by many different entities.
This page only points to a select few of the most requested/relevant lists for the UCI community.
The INSEAD Libraries has an excellent compilation of many additional lists.