Inmarsat Announces Upgrade Pathway to Global Xpress Service

LONDON, June 29, 2011 -

- Delivers Combined Ku- and L-band
Maritime Services

Inmarsat (LSE:ISAT.L), the leading provider of global mobile
satellite communications services, today announced a pathway
product to its future Global Xpress™ (GX) service, providing
maritime users with access to both Ku-band VSAT and L-band
FleetBroadband services in a bundled package.

Initially available from Ship Equip and Stratos, Inmarsat’s
direct distribution channel, the new offering will deliver a
fully-integrated managed service for an inclusive monthly fixed
fee.  It is intended to be available to all GX-appointed
distributors.

Designed to provide a bridge to Inmarsat’s Ka-band Global Xpress
service, the package includes a guaranteed free hardware upgrade
when Inmarsat’s new service becomes available in 2013.

With a suggested retail price of US$2,999/month for 60 months,
it offers:

• Ku-band hardware, approved by Inmarsat as upgradable to
  Ka-band
• FleetBroadband (FB500) hardware
• Airtime at 512kpbs/512kbps, with a committed information rate
  (CIR) of 128kbps
• Inclusive FleetBroadband airtime where the VSAT service is not
  available
• The complete range of Ship Equip and Stratos applications and
  support products
• Guaranteed free upgrade from the Ku-band hardware to Ka-band
  Global Xpress
• Guaranteed double bandwidth upgrade on Global Xpress:
  1Mbps/1Mbps and 256kbps CIR.

“This is an exceptional value proposition.  It gives the
maritime industry a clear path to the true broadband services that
Global Xpress will deliver and removes risk from upgrading now”,
said Frank Coles, Senior Director of Maritime for Global
Xpress.

“It is currently the only approved Global Xpress upgrade path.
 We intend to appoint further GX distribution partners, who
will also be able to offer this winning proposition. “Combined,
Ship Equip and Stratos offer unprecedented capability, service and
support for both FleetBroadband and Ku-band VSAT, and are ideally
placed to bring this unique value-driven solution to the market,”
he said.

The announcement follows the recent introduction of fixed fee
options on FleetBroadband, which provide very large allowances for
merchant fleets that want the functionality and reliability of an
L-band service with predictable fixed costs.

“Since the inception of maritime satellite communications,
Inmarsat has been the most trusted brand,” said Coles. “Inmarsat
has shown it is ready to continue to be the leading light in
maritime communications and provide a compelling, complete service
for the industry.”

About Inmarsat

Inmarsat plc (LSE: ISAT) is the leading provider of global
mobile satellite communications services.  Since 1979,
Inmarsat has been providing reliable voice and high-speed data
communications to governments, enterprises and other organizations,
with a range of services that can be used on land, at sea or in the
air.  The company’s services are delivered through a global
network of more than 400 distribution partners and service
providers operating in 100 countries.  For the year ended 31
December 2010, Inmarsat plc had total revenue of US$1,171.6 million
(2009: US$1,038.1 million) with an EBITDA of US$696.1 million
(2009: US$594.2 million).  For more information, please visit
www.inmarsat.com.

Media Contact: John Warehand, PR Manager, Inmarsat, Tel No: +44(0)20-7728-1579, Email: john_warehand at inmarsat.com