The following airlines serve Munich MUC Airport.
Airline Terminal
Adria Airways Airlines, JP Terminal 2
Aegean Airlines, A3 Terminal 2
Aer Lingus Airlines, EI Terminal 1
Aeroflot Russian Airlines, SU Terminal 1
Air Baltic Airlines, BT Terminal 1
Air Berlin Airlines, AB Terminal 1
Air Canada Airlines, AC Terminal 2
Air China International Airlines, CA Terminal 2
Air France Airlines, AF Terminal 1
Air Malta Airlines, KM Terminal 2
Air Mauritius Airlines, MK Terminal 1
Alitalia Airlines, AZ Terminal 1
Arkia - Israeli Airlines, IZ Terminal 1
Austrian Airlines, OS Terminal 2
British Airways Airlines, BA Terminal 1
Brussels Airlines, SN Terminal 1
Carpatair Airlines, V3 Terminal 2
Cimber Air Airlines, QI Terminal 2
Cirrus Airlines, C9 Terminal 2
Condor Flugdienst Airlines, DE Terminal 1
Croatia Airlines, OU Terminal 2
Czech Airlines, OK Terminal 1
Delta Air Lines Airlines, DL Terminal 1
EasyJet Airlines, U2 Terminal 1
Egyptair Airlines, MS Terminal 2
El Al Airlines, LY Terminal 1
Emirates Airlines, EK Terminal 1
Estonian Air Airlines, OV Terminal 1
Etihad Airways Airlines, EY Terminal 1
Eurocypria Airlines, UI Terminal 1
European Air Express Airlines, EA Terminal 1
Finnair Airlines, AY Terminal 1
FlyLAL Airlines, TE Terminal 1
Germanwings Airlines, 4U Terminal 1
HI Hamburg International Airlines, 4R Terminal 1
Iberia Airlines, IB Terminal 1
KD Avia Airlines, KD Terminal 1
KLM Airlines, KL Terminal 1
Korean Air Lines Airlines, KE Terminal 1
LOT - Polish Airlines, LO Terminal 2
LTU International Airways Airlines, LT Terminal 1
Lufthansa Airlines, LH Terminal 2
Luxair Airlines, LG Terminal 2
Niki Airlines, HG Terminal 1
Norwegian Air Shuttle Airlines, DY Terminal 1
OLT Airlines, OL Terminal 1
Olympic Airlines, OA Terminal 1
Qatar Airways Airlines, QR Terminal 2
Royal Jordanian Airlines, RJ Terminal 1
S7 Airlines, S7 Terminal 1
SAS Airlines, SK Terminal 2
Saudia Airlines, SV Terminal 1
South African Airways Airlines, SA Terminal 2
Spanair Airlines, JK Terminal 2
Sun D'Or Airlines, ERO Terminal 1
Sunexpress Airlines, XQ Terminal 1
SWISS Airlines, LX Terminal 2
TAP-Air Portugal Airlines, TP Terminal 2
Tarom Airlines, RO Terminal 1
Thai Airways International Airlines, TG Terminal 2
Transaero Airlines, UN Terminal 1
TUIfly Airlines, X3 Terminal 1
Tunis Air Airlines, TU Terminal 1
Turkish Airlines, TK Terminal 2
United Airlines, UA Terminal 2
US Airways Airlines, US Terminal 2
VLM Airlines, VG Terminal 1

More details on airlines from the Munich Airport website.