Satellite : Satellite Lauch Schedule

[rajuB4U]

Sea Launch:
2009
4 October – Eutelsat W7 – 3SL/DM-SL – SL

2010
Second half – XM 5 – 3SL/DM-SL – SL
Fourth quarter – SkyTerra 2 – 3SL/DM-SL – SL (or first quarter 2011)
End of year - O3b Networks (8 satellites) - 3SL/DM-SL - SL

2011
First quarter - Intelsat 17 - 3SL/DM-SL - SL

Note: Land Launches excluded.

Sea Launch would seem to have plenty of room, but I believe there is some major Commander/Odyssey work to be done, plus some Zenit supply chain issues.

Ariane 5:

2009
24 June - TerreStar-1 - Ariane 5 ECA (V189)
August - Amazonas-2 / SatcomBW-2A - Ariane 5 ECA (V190)
Third quarter - NSS 12 - Ariane 5
Third quarter - Optus D3 - Ariane 5
Third quarter - JCSAT-12 - Ariane 5
November - COMS-1 - Ariane 5
December - Helios-IIB - Ariane 5 GS
Fourth quarter - Thor-6 - Ariane 5
Fourth quarter - Arabsat 5A - Ariane 5(or Proton from Baikonur)
Fourth quarter - INSAT-4G - Ariane 5
Fourth quarter - Astra 3B - Ariane 5

2010
First quarter - Badr 5 - Ariane 5 (or Proton from Baikonur)
June - Nilesat 201 - Ariane / Soyuz
Third quarter - SES Satellite (AMC-?R) - Ariane
Second half - BSat-3b - Ariane
Second half - Koreasat 6 - Ariane / Soyuz
10 November - ATV-2 "Johannes Kepler" - Ariane
Fourth quarter - Yahsat-1A - Ariane
Fourth quarter - Intelsat New Dawn - Ariane 5 / Soyuz
end of 2010 - Hispasat 1E - Ariane
Rascom-QAF 1R - Ariane 5 / Soyuz
TerreStar-2 - Ariane 5

2011
January - MSG-3 - Ariane
Second quarter - Astra 1N - Ariane
First half - BSAT-3c/JCSAT-110R - Ariane 5 ECA
Third quarter - Arabsat 5C - Ariane 5 ECA
Second half - Yamal 401 - Ariane 5 ECA
Second half - Yamal 402 - Ariane 5 ECA
Türksat 4A - Ariane 5
ATV-3 - Ariane

Note: Soyuz and Vega launches excluded

There seems to be some space at the beginning of 2010 there.

Atlas V:

2009
Date - Satellite(s) - Rocket - Launch Site - Time (GMT)
17 June - LRO/LCROSS - Atlas V 401 - Canaveral - 21:32-22:32
17 July - PAN - Atlas V 401 - Canaveral - 20:02:35-23:02:35 - or 21 July
14 August - DMSP-5D3-18 - Atlas V 401 - Vandenberg - 16:12-16:22 - or 20 October
18 September - Intelsat 14 - Atlas V 431 - Canaveral - or 25 August
6 November - SDO - Atlas V 401 - Canaveral - or 14 October

2010:
Date - Satellite(s) - Rocket - Launch Site
January - X-37B OTV-1 - Atlas V 501 - Canaveral
March - GPS-IIF-2 - Atlas V 401 - Canaveral
May - SBIRS-GEO 1 - Atlas V 401 - Canaveral
July - MUOS-1 - Atlas V 551 - Canaveral
September - GPS-IIF-3 - Atlas V 401 - Canaveral
October - NRO L-34 (NOSS?) - Atlas V 401 - Vandenberg?
November - AFSPC-2 - Atlas V 541 - Canaveral

2011:
Date - Satellite(s) - Rocket - Launch Site
February - AEHF-1 - Atlas V 531 - Canaveral
March - NRO L-41 (Imp. Lacrosse?) - Atlas V 501 - Vandenberg
March - X-37B OTV-2 - Atlas V 501 - Canaveral
May - GPS-IIF-4 - Atlas V 401 - Canaveral
11 August - Juno - Atlas V 551 - Canaveral
October (NET) - MSL - Atlas V 541 - Canaveral

Note: Non Atlas V launches excluded

Not sure if there is space there or not.

A Delta IV Medium+ could do it, too.

I think the best bets are Arianespace or Sea Launch.