GreenXchange Global Marketplace Conference Announces AECOM As Platinum Sponsor

LOS ANGELES, CA & FRAMINGHAM, MA – December 5, 2007 – GreenXchange LLC today announced that AECOM Technology Corporation (NYSE: ACM), a leading provider of professional technical and management support services for government and commercial clients around the world, has signed on as a Platinum Sponsor for the GreenXchange™ Global Market Place Conference. In addition, several high-level executives representing AECOM will take part in the event as speakers and panel participants. The inaugural conference is scheduled to take place December 10-11, 2007, at the Hyatt Regency Century Plaza Hotel in Los Angeles.

“Sharing our industry’s best practices and knowledge is one of the best ways to contribute substantively to the greening of both our built and un-built environments as well as smartly and efficiently reducing CO2 emissions,” said Ray Landy, President and CEO, DMJM, AECOM. “We at DMJM look forward to participating in the upcoming GreenXchange in Los Angeles and view VerdeXchange’s efforts to marry entrepreneurship and environmentalism as an important link in helping us achieve these substantive contributions for our clients globally.”

AECOM’s broad range of markets include transportation, facilities, environmental and energy, where the company provides a blend of global reach, local knowledge, innovation and technical excellence in delivering solutions that enhance and sustain the world's built, natural and social environments.

In addition to supporting the conference as a platinum sponsor, several executives from AECOM will be present as speakers and panel participants, including:

* Jack Baylis, CEO, West Region Group, AECOM

* Claire Carter, Director of Sustainable Development, DMJM, H&N

* Isaac Brown, Planner, EDAW, Inc.

* Vaughn Davies, Principal Director of Urban Design, EDAW Inc.

* Ashok Dhingra, Sr. Vice President – Regional Manager West, Metcalf & Eddy/AECOM

* Richard M. Hansen, Director of Engineering and Division Manager, DMJM Harris

* Mark Sisson, PE, Transportation Planner & Analyst, Assoc. Vice President, DMJM Harris

* Alan Wong, Sr. Vice President, National Wastewater Practice Leader, Eddy/AECOM

Additional Conference Sponsors include: Angeleno Group; BMW; Canadian Consulate; Craton Equity Partners; Electronic Recyclers; G24 Innovations; Google; Milbank; Newhall Land; and Trucost.

For a complete list of speakers, tracks and conference sessions, or to register for the event, please visit .

The GreenXchange Global Marketplace Conference brings together decision makers from the spectrum of renewable technology and energy marketplaces to help companies and public institutions connect the green dots — choose and assemble less carbon emitting energy portfolios. Discussions and ideas presented at the conference will shape the agenda for the first annual GreenXchange Xpo™, scheduled to take place October 1-3, 2008 in Los Angeles, Calif. The conference and 2008 Xpo are produced by GreenXchange LLC, the partnership of tradeshow producer IDG World Expo and environmental think-tank VerdeXchange.

About GreenXchange Xpo

GreenXchange ( ) is a world-class exposition and conference, bringing together public and private buyers, vendors, manufacturers, financiers, academics, researchers and policy-makers, who are shaping the “green world.” GreenXchange Xpo will showcase carbon emission friendly, environmentally sustainable products, services, research and climate change policy in forums that provide business opportunities, as well as education, stimulating debate, and innovative product and service display and viewing opportunities. The attendees of these forums are market-makers and key facilitators of "green" products and technology from the public, private and NGO (non-governmental organization) sectors looking to develop and diffuse innovation in the global marketplace.

About IDG World Expo

IDG World Expo ( ) is a leading producer of tradeshows and events for professionals and consumers seeking world-class education, peer-to-peer networking and one-stop comparison shopping. IDG World Expo's portfolio of conferences and events includes Entertainment For All™ (E For All™), E3 Media & Business Summit, GreenXchange Xpo™, LinuxWorld Conference & Expo®, Macworld Conference & Expo® and Next Generation Data Center™ (NGDC™). IDG World Expo is a business unit of IDG, the world's leading technology media, research and event company.

About VerdeXchange

VerdeXchange, LLC is a start-up environmental think tank and publisher created to inform and strategically advise green innovators wishing to diffuse green technology and innovations in the marketplace. VerdeXchange Institute is committed to sharing with civic and commercial entrepreneurs the evolving business signals and government drivers influencing the global marketplace for green innovation and technologies. For additional information about VerdeXchange go to: