U.S. SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): November 7, 2007

ADA-ES, INC.

(Name of registrant as specified in its charter)

Colorado |  | 000-50216 |  | 84-1457385
(State or other jurisdiction of incorporation) |  | (Commission File Number) |  | (I.R.S. Employer Identification Number)

8100 SouthPark Way, Unit B, Littleton, Colorado |  | 80120
(Address of principal executive offices) |  | (Zip Code)

Registrant’s telephone number, including area code: (303)734-1727

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.02 | Results of Operations and Financial Condition

On November 7, 2007, we issued a press release announcing our financial results for the quarter ended September 30, 2007. A copy of the press release is furnished as Exhibit 99.1 to this report.

In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as may be expressly set forth by specific reference in such filing.

Item 7.01 | Regulation FD Disclosure.

On November 8, 2007, ADA-ES will be presenting at The Pacific Growth Equities Conference in San Francisco, California. A copy of the presentation materials is attached hereto as and exhibit 99.2 to this report.

Item 9.01. | Financial Statements and Exhibits

(c) | The following items are furnished as exhibits to this report:

99.1 |  | Earnings Release, ADA-ES reports third quarter results, dated November 7, 2007.
99.2 |  | The Pacific Growth Equity Conference Presentation.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Date: November 7, 2007

ADA-ES, Inc. Registrant
/s/ Mark H. McKinnies
Mark H. McKinnies Chief Financial Officer

INDEX TO EXHIBITS

Exhibit No. |  | Description
99.1 |  | Press release dated November 7, 2007
99.2 |  | The Pacific Growth Equity Conference Presentation