TGIS Thomas Grp., Inc. (MM)

THOMAS GROUP, INC. 5221 N. O’Connor Boulevard, Suite 500 Irving, Texas 75039-3714 NOTICE OF INTERNET AVAILABILITYwww.envisionreports.com/TGIS Step 1: Go to www.envisionreports.com/TGIS to view the materials. Step 2: Click on Cast Your Vote or Request Materials. Step 3: Follow the instructions on the screen to log in. 016QZA IMPORTANT ANNUAL STOCKHOLDERS’ MEETING INFORMATION — YOUR VOTE COUNTS! + + Important Notice Regarding the Availability of Proxy Materials for the Thomas Group, Inc. Stockholder Meeting to be Held on June 21, 2010 Under new Securities and Exchange Commission rules, you are receiving this notice that the proxy materials for the annual stockholders’ meeting are available on the Internet. Follow the instructions below to view the materials and vote online or request a copy. The items to be voted on and location of the annual meeting are on the reverse side. Your vote is important! This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. The proxy statement and annual report on Form 10-K are available at: Easy Online Access — A Convenient Way to View Proxy Materials and Vote When you go online to view materials, you can also vote your shares. Step 4: Make your selection as instructed on each screen to select delivery preferences and vote. Obtaining a Copy of the Proxy Materials – If you want to receive a paper or e-mail copy of these documents, you must request one. There is no charge to you for requesting a copy. Please make your request for a copy as instructed on the reverse side on or before June 11, 2010 to facilitate timely delivery. Stockholder Meeting Notice 0 2 5 5 9 7 C 1234567890 ANDREW SAMPLE 1234 AMERICA DRIVE ANYWHERE, IL 60661 1234 5678 9012 345

Here’s how to order a copy of the proxy materials and select a future delivery preference: Paper copies: Current and future paper delivery requests can be submitted via the telephone, Internet or email options below. Email copies: Current and future email delivery requests must be submitted via the Internet following the instructions below. If you request an email copy of current materials you will receive an email with a link to the materials. PLEASE NOTE: You must use the number in the shaded bar on the reverse side when requesting a set of proxy materials. Internet – Go to www.envisionreports.com/TGIS. Click Cast Your Vote or Request Materials. Follow the instructions to log in and order a paper or email copy of the current meeting materials and submit your preference for email or paper delivery of future meeting materials. Telephone – Call us free of charge at 1-866-641-4276 using a touch-tone phone and follow the instructions to log in and order a paper copy of the materials by mail for the current meeting. You can also submit a preference to receive a paper copy for future meetings. Email – Send email to investorvote@computershare.com with “Proxy Materials Thomas Group, Inc.” in the subject line. Include in the message your full name and address, plus the number located in the shaded bar on the reverse, and state in the email that you want a paper copy of current meeting materials. You can also state your preference to receive a paper copy for future meetings. To facilitate timely delivery, all requests for a paper copy of the proxy materials must be received by June 11, 2010. Stockholder Meeting Notice Thomas Group, Inc.’s Annual Meeting of Stockholders will be held on June 21, 2010 at the principal executive offices of the Company, located at 5221 N. O’Connor Boulevard, Suite 500, Irving, Texas at 10:00 A.M. Central Time. Proposals to be voted on at the meeting are listed below along with the Board of Directors’ recommendations. The Board of Directors recommends that you vote FOR the following proposals: 1. Proposal to elect the five persons listed in the proxy statement to serve as directors until the 2010 Annual Meeting of Stockholders or until their successors are duly elected and qualified. 2. Proposal to ratify the appointment of Hein & Associates LLP, independent registered public accounting firm, as the Company’s independent auditors for the fiscal year 2010. 3. Proposal to amend the Company’s Amended and Restated Certificate of Incorporation to permit the Company’s Board of Directors to effect, in its discretion, a reverse stock split of the Company’s common stock at a ratio within a range from one-for-two to one-for-five at any time on or before December 31, 2010. Note: At the Annual Meeting of Stockholders, such other business as may properly come before the meeting or any adjournments or postponements thereof will be considered. PLEASE NOTE – YOU CANNOT VOTE BY RETURNING THIS NOTICE. To vote your shares you must vote online or request a paper copy of the proxy materials to receive a proxy card. If you wish to attend and vote at the meeting, please bring this notice with you. 016QZA