GFI Group Inc. Appoints Head of Energy - North America

NEW YORK, July 31, 2008 (PRIME NEWSWIRE) -- GFI Group Inc. (Nasdaq:GFIG), an
inter-dealer brokerage, market data, trading platform and analytical software
provider for global cash and derivative markets, announced today the appointment
of Michael Cosgrove as head of GFI's energy operations in North America. Mr.
Cosgrove will be reporting to Colin Heffron, President of GFI.

Mr. Cosgrove has been with Amerex for over 20 years and has served as its Chief
Executive Officer since 2003. Mr. Cosgrove has assisted clients in both emerging
and established energy markets around the world with the development of
innovative risk management and trading programs. Since GFI's acquisition of
Amerex in 2006, Mr. Cosgrove has served as President of GFI's Amerex division.
In his new position, Mr. Cosgrove will lead all of GFI's energy business in
North America, including its Amerex and Starsupply divisions.

Mr. Heffron said, "Michael Cosgrove is one of the true visionaries in the
development of global energy markets. I am delighted that he has agreed to take
on this leadership role at GFI as we are rolling out our EnergyMatch(r) trading
platform amidst rapid change in the North American energy markets. I am certain
that under Michael Cosgrove's management, GFI will achieve even greater success
as one of the world's most technology-enabled brokers of OTC energy products.

About GFI Group Inc.

GFI Group Inc. (http://www.GFIgroup.com) is a leading inter-dealer broker
specializing in over-the-counter derivatives products and related securities.
GFI Group Inc. provides brokerage services, market data, trading platform and
analytics software products to institutional clients in markets for a range of
credit, financial, equity and commodity instruments.

Headquartered in New York, GFI was founded in 1987 and employs more than 1,700
people with additional offices in London, Paris, Hong Kong, Seoul, Tokyo,
Singapore, Sydney, Cape Town, Dubai, Tel Aviv, Calgary, Englewood (NJ) and Sugar
Land (TX). GFI provides services and products to over 2,200 institutional
clients, including leading investment and commercial banks, corporations,
insurance companies and hedge funds. Its brands include GFI(tm), GFInet(r),
CreditMatch(r), GFI ForexMatch(tm), EnergyMatch(r), FENICS(r), Starsupply(r),
Amerex(r), and Trayport(r).

Forward-looking statements

Certain matters discussed in this press release contain forward-looking
statements within the meaning of the Private Securities Litigation Reform Act of
1995. When used in this press release, the words "anticipate," "believe,"
"estimate," "may," "might," "intend," "expect" and similar expressions identify
such forward-looking statements. Actual results, performance or achievements
could differ materially from those contemplated, expressed or implied by the
forward-looking statements contained herein. These forward-looking statements
are based largely on the expectations of the Company and are subject to a number
of risks and uncertainties. These include, but are not limited to, risks and
uncertainties associated with: acquisitions by us of businesses or technologies;
economic, political and market factors affecting trading volumes, securities
prices or demand for the Company's brokerage services; competition from current
and new competitors; the Company's ability to attract and retain key personnel,
including highly-qualified brokerage personnel; the Company's ability to
identify and develop new products and markets; changes in laws and regulations
governing the Company's business and operations or permissible activities; the
Company's ability to manage its international operations; financial difficulties
experienced by the Company's customers or key participants in the markets in
which the Company focuses its brokerage services; the Company's ability to keep
up with technological changes; and uncertainties relating to litigation. Further
information about factors that could affect the Company's financial and other
results is included in the Company's filings with the Securities and Exchange
Commission. The Company does not undertake to publicly update or revise any
forward-looking statements, whether as a result of new information, future
events or otherwise.

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CONTACT: GFI Group Inc.
Investor Relations Contact:
Christopher Giancarlo, Executive Vice
President - Corporate Development
212-968-2992
investorinfo@gfigroup.com
Chris Ann Casaburri, Investor Relations Manager
212-968-4167
chris.casaburri@gfigroup.com
Media Contact:
Alan Bright, Public Relations Manager
011-44-20-7877-8049
alan.bright@gfigroup.co.uk

Comm-Partners LLC
June Filingeri
203-972-0186
junefil@optonline.net