Compellent 8-K Changes in Registrant's Certifying Accountant

Exhibit 16.1

June 15, 2010

U.S. Securities and Exchange Commission
Office of the Chief Accountant
100 F Street, NE
Washington, DC 20549 — 7561

Re:	Compellent Technologies, Inc.
	File No. 001-33685

Dear Sir or Madam:

We have read Item 4.01 of Form 8-K of Compellent Technologies, Inc. dated June 15, 2010, and agree with the statements concerning our Firm contained therein.

Very truly yours,

/s/ GRANT THORNTON LLP