How do you find an EIN for a known business?

There are several ways in which you can find an EIN for a known business. Public companies print their EIN on their 10-k's, 20-f's, and other SEC forms. Non profit organizations have their EIN included on their Form 990 while private companies often print their EIN on their business websites. You can also contact the Small Business Administration for information on obtaining an EIN for a known business.