Overview of Inmarsat’s Satellite Portfolio January 2013

A Brief History Creation of Inmarsat as an international treaty organization, to provide maritime satellite communications, including maritime distress and safety services via satellite 1982Maritime Safety and Maritime Services launched globally via leased satellites 1989/90Land Mobile and Aeronautical services introduced (aero safety services in 1995) 1990 Inmarsat launches first satellites and operates over own capacity 1999Inmarsat is privatised and is no longer an IGO – aero and maritime safety continue under public service obligations 2005Inmarsat IPO on London Stock Exchange 2006Launch of first two Inmarsat-4 satellites (3 rd in 2008) Launch of BGAN services for land, air and sea 2010Handheld IsatPhone Pro launched worldwide 2011Start of investment in Ka band VSAT satellites and network (Global Xpress program ) Upcoming satellite launches (Alphasat, Global Xpress) 2 Strong linkages to governments worldwide from the past, in the present and the future

Inmarsat Mobile Satellite Broadband System geostationary satellites in orbit today using L-Band Planned launch of Alphasat in 2013, bringing into use extended L-band Planned launch of Global Xpress starting in 2013, using Ka-band Three 4th Generation satellites operational with commercial life satellite years without operational failure % network availability Worldwide coverage with ubiquitous network and products Land, sea, and air mobile services Including safety services for maritime and aeronautical users Mobile broadband network available anytime, anywhere 3

Core business markets 187,600 terminals Over 9,800 FleetBroadband terminals added in 2011 Sole provider of GMDSS Drivers: ship management and automation, crew welfare, new ships, smaller vessels Key service: FleetBroadband, simultaneous voice and data up to 432kbps XpressLink, pathway service to Global Xpress 140,100 terminals 60-65% government business Drivers: government/military activity, aid agencies, media on- the-spot reporting Key service: BGAN, voice and data up to 492kbps Global handheld satellite phone service launched in June 2010, IsatPhone Pro > 65,000 active subscribers to date 14,500 terminals 65-70% government business Drivers: large government aircraft, large business jets Key services: SwiftBroadband  simultaneous broadband data and voice; rapidly building market acceptance SB 200 – smaller business jets MaritimeLand MobileAviation 50% of 2011 Inmarsat Global MSS revenue 21% of 2011 Inmarsat Global MSS revenue 14% of 2011 Inmarsat Global MSS revenue 4 Active terminals as at 30 June 2012

End-user markets Distribution partners Service providers Established distribution network Service providers 100% ownership 39% (1) 61% (1 ) Evergreen distribution agreements with all partners More than 30 distribution partners and over 600 service providers worldwide Stratos (acquired April 2009) Responsible for distribution of ~40% of Inmarsat’s MSS revenues in addition to other telecom solutions Included as a wholly-owned subsidiary to Inmarsat Group Ltd as of May 2010 Segovia (acquired January 2010) Service provider focused on US Dept of Defence managed services contracts Ship Equip (acquired April 2011) Leading provider of maritime VSAT services, more than 1,000 ships installed 5 (1) As of FY2011.

GovernmentEnterpriseInternational Aid High-quality end-user base Supplying mission-critical applications to a diverse end-user base 6

BGAN IP Connectivity BGAN relies on a single network allowing maritime, land and aero communications Swift 64 / swift broadband Live store and forward video capabilities Easily deployable in small aircraft Real time updates, allowing for greater co- ordination on the ground Cost effective means of transmitting data from surveillance aircraft to response teams Example: Swedisch Dash 8 supporting Atalanta Video surveillance and life telemetry Authorities increasingly policy territorial waters and remote land masses against illegal fishing, smuggling and deliberate pollution using Inmarsat Swift Broadband

Inmarsat Global Xpress Global coverage $1.2bn 50 MB/s Operational satellites Ka-band World’s first global mobile broadband Broadband service for the maritime, energy and government sectors $1.2bn investment programme On track for first satellite launch in 2013, global service in

International dimension of frequency use L-band small spot beamsL-band regional and global beams Global network for mobile terminals that can operate on land, sea and in the air Roaming enabled in globally harmonised spectrum

Long Term Portfolio : Speed – Affordability - Reliability Mbps Low rate data and voiceStandard BroadbandSuperfast Broadband Handheld, M2M Pocket size Single user Rapid disaster response deployments Text, voice call monitoring, alarms Mobile and portable Laptop size Single user and small teams Short-term disaster response deployments , browsing, applications Streaming video Remote office Mobile and fixed VSAT 45 to 240 cm dish Larger numbers of simultaneous users More permanent disaster recovery installations Standard apps at higher speed and quality Telepresence, live internet TV Collaborative working Inmarsat -5 Ka-BandInmarsat 3 and 4 L – Band Alphasat extended L-band <10 Kbps64 Kbps500 Kbps 50 Mbps L-band services will continue to develop Ka-band Global Xpress services will extend the portfolio to cover bandwidth-hungry applications L and Ka band networks will be integrated or in some cases hybrid to offer unparalleled resilience

Inmarsat’s Capabilities 3 HISTORY 32 years & 5 fleet generations of reliability REACH Global distribution network BREADTH Unrivalled product & service range from M2M to GX FULLY FUNDED $1.4 billion liquidity & FTSE 250 status GLOBAL Seamless global coverage & in-orbit redundancy MOBILE A network specifically built for mobility 11 INNOVATIVE $3B invested into our next generation networks SAFETY Unique long-term commitment to safety services SECURITY Highly secure networks MULTI-BAND L, Ka, Mil-Ka & Ku capabilities The Mobile Satellite Company