GreenHouse Holdings, Inc. (OTCBB: GRHU) ("GreenHouse"), a leading provider of energy efficiency solutions and sustainable infrastructure products, today announced that the Registration Statement on Form S-4 filed by Premier Alliance Group, Inc. ("Premier") establishing the terms of GreenHouse's acquisition was declared effective by the Securities and Exchange Commission as of February 8, 2012. In addition the record date for stockholders to consider and vote upon the proposals contemplated by the previously announced merger agreement between GreenHouse and Premier has been established as January 30, 2012, for their special meeting. The Registration Statement on Form S-4 may also be accessed online at the SEC's website, www.sec.gov.

GreenHouse's stockholders of record at the close of business on January 30, 2012 will receive notice of, and will be entitled to vote at, their special meeting. The special meeting will be held on February 29, 2012 at 9:00 am at GreenHouse's principal offices located at 5171 Santa Fe Street, Suite I, San Diego, California 92109.

"We eagerly anticipate the closing of the merger between our two companies, upon stockholder approval, later this month," said John Galt, CEO of GreenHouse. "We are anxious to begin integrating our two companies."

Mark Elliott, CEO of Premier, added, "We are excited to bring GreenHouse into the fold and build upon the reputation they've established within the utilities and Government space, as well as take advantage of the synergies between our two organizations."

About GreenHouse Holdings, Inc.

GreenHouse Holdings is a leading provider of energy efficiency and sustainable facilities solutions. The company designs, engineers and installs disparate products and technologies that enable its clients to reduce their energy costs and carbon footprint. Its target markets for energy efficiency solutions include government and military, as well as commercial, residential and industrial markets. In addition, the company develops, designs and constructs rapidly deployable, sustainable facilities primarily for use in disaster relief and security in austere regions. For more information, please visit: www.greenhouseintl.com or the GreenHouse YouTube channel at http://www.youtube.com/greenhouseintl or follow GreenHouse on Twitter @greenhouseintl.

About Premier Alliance Group, Inc.

Premier Alliance is a leading provider of business and technology advisory and consulting services. Practice areas of expertise encompass Governance, Risk & Compliance (GRC), Business Performance & Technology, and Finance & Accounting as we assist clients with Risk Management, Compliance, Mergers & Acquisitions, Organizational Effectiveness, Project/Program Management, Information Management, Architecture and Software Development. Premier Alliance Group is headquartered in Charlotte, NC. For more information, please visit www.premieralliance.com.

Participants in the Merger Solicitation

GreenHouse, Premier, and certain of their respective directors and executive officers and certain other members of management and employees may be deemed to be participants in the solicitation of proxies from the stockholders of GreenHouse and Premier in connection with the proposed transaction. Information about the directors and executive officers of GreenHouse is set forth in its proxy statement for its 2011 annual meeting of stockholders, which was filed with the SEC. Information about the directors and executive officers of Premier is set forth in its proxy statement for its 2011 annual meeting of stockholders, which was filed with the SEC on. These documents can be obtained free of charge from the sources indicated above. Other information regarding the participants in the proxy solicitation and a description of their direct and indirect interests, by security holdings or otherwise, are contained in the joint proxy statement/prospectus and other relevant materials which may be filed with the SEC.

Cautionary Statement Regarding Forward-Looking Statements

This press release contains forward-looking statements that reflect the Company's current expectation regarding future events. Actual events could differ materially and substantially from those projected herein and depend on a number of factors. Certain statements in this release, and other written or oral statements made by GreenHouse Holdings, Inc. are "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. You should not place undue reliance on forward-looking statements since they involve known and unknown risks, uncertainties and other factors which are, in some cases, beyond the Company's control and which could, and likely will, materially affect actual results, levels of activity, performance or achievements. The Company assumes no obligation to publicly update or revise these forward-looking statements for any reason, or to update the reasons actual results could differ materially from those anticipated in these forward-looking statements, even if new information becomes available in the future. Important factors that could cause actual results to differ materially from the company's expectations include, but are not limited to, those factors that are disclosed under the heading "Risk Factors" and elsewhere in documents filed by the company from time to time with the United States Securities and Exchange Commission and other regulatory authorities.

GreenHouse Holdings, Inc. Contacts: Investor Relations Alliance Advisors, LLC Bryan Kobel Email Contact Chris Camarra Email Contact 212-398-3487 Media Relations Rubenstein Public Relations Michelle Manoff Tel: 212-843-8051 Email: Email Contact