An Employer Identification Number (EIN) is also known as a Federal Tax Identification Number, and is used to identify a business entity. Generally, businesses need an EIN. You may apply for an EIN in various ways, and now you may apply online. This is a free service offered by the Internal Revenue Service and you can get your EIN immediately. TAX ID / BROKER DEALER : APPROVAL DATE: Innovation Partners, LLC : 30-0451254 : 11/19/2013: International Assets Advisory LLC : 59-3734291 : 12/19/2012: International Financial Solutions, Inc. 25-1717574 : 8/24/2010: Intervest International Equities Corp. 98-0096287 : 12/5/2002: Invest Financial Corporation : 59-2195688 : 12/4/1992: Investacorp.