The Italian organizers have announced the teams for their first three contests.

MONTEPASCHI STRADE BIANCHE TOSCANA
6 marzo 2010, formazioni invitate: 15

ACQUA & SAPONE-MOKAMBO (Ita): Garzelli, Paolini
AG2R LA MONDIALE (Fra): Efimkin
ANDRONI-DIQUIGIOVANNI (Ita): Ginanni
ASTANA (Kaz): Vinokourov
BMC (Usa): Evans, Ballan
CERVELO TEST TEAM (Svi): Hammond
GARMIN-TRANSITION (Usa): Hesjedal
ISD-NERI (Ita): Visconti
LAMPRE-FARNESE VINI (Ita): Bernucci, Gavazzi
LIQUIGAS-DOIMO (Ita): Pellizotti
OMEGA PHARMA-LOTTO (Bel): Peraud
SKY PROFESSIONAL CT (GB): Lofkvist
TEAM HTC-COLUMBIA (Usa): Cavendish, Pinotti
TEAM KATUSHA (Rus): Pozzato, Kirchen
TEAM SAXO BANK (Dan): Cancellara

TIRRENO-ADRIATICO
10 -16 marzo 2010, formazioni invitate: 22

ACQUA & SAPONE-MOKAMBO (Ita): Garzelli, Paolini
AG2R LA MONDIALE (Fra): Efimkin, Elmiger
ANDRONI-DIQUIGIOVANNI (Ita): Scarponi, Ginanni
ASTANA (Kaz): Vinokourov
BMC (Usa): Evans, Ballan
CAISSE D’EPARGNE (Spa): Uran, Bruseghin
CERVELO TEST TEAM (Svi): Hammond, Huschovd
COLNAGO-CSF INOX (Irl): Gavazzi
EUSKALTEL-EUSKADI (Spa): Samuel Sanchez
FRANCAISE DES JEUX (Fra): Guesdon, Roux
GARMIN-TRANSITION (Usa): Farrar, Hesjedal
ISD-NERI (Ita): Visconti
LAMPRE-FARNESE VINI (Ita): Petacchi, Bernucci, Hondo
LIQUIGAS-DOIMO (Ita): Nibali, Pellizotti, Bennati
OMEGA PHARMA-LOTTO : Peraud
QUICK STEP (Bel): Boonen
RABOBANK (Hol): Freire, Gesink
SKY PROFESSIONAL CT (GB): Boasson Hagen, Lofkvist
TEAM HTC-COLUMBIA (Usa): Cavendish, Pinotti, Rogers
TEAM KATUSHA (Rus): Pozzato, Kirchen
TEAM MILRAM (Ger): Gerdemann, Ciolek
TEAM SAXO BANK (Dan): Cancellara, Andy Schleck

MILANO-SANREMO
20 marzo 2010, formazioni invitate: 25

ACQUA & SAPONE-MOKAMBO (Ita): Garzelli, Paolini
AG2R LA MONDIALE (Fra): Efimkin, Nocentini
ANDRONI-DIQUIGIOVANNI (Ita): Scarponi, Ginanni
ASTANA (Kaz): Vinokourov
BBOX BOUYGUES TELECOM (Fra): Arashiro
BMC (Usa): Ballan
CAISSE D’EPARGNE (Spa): Uran, Bruseghin
CARMIOORO-NGC (GB): Ventoso
CERVELO TEST TEAM (Svi): Hammond, Huschovd
COLNAGO-CSF INOX (Irl): Gavazzi
EUSKALTEL-EUSKADI (Spa): Samuel Sanchez
FRANCAISE DES JEUX (Fra): Guesdon, Roux, Le Mevel
GARMIN-TRANSITION (Usa): Farrar, Maaskant
ISD-NERI (Ita): Visconti
LAMPRE-FARNESE VINI (Ita): Petacchi, Cunego
LIQUIGAS-DOIMO (Ita): Nibali, Pellizotti, Bennati
OMEGA PHARMA-LOTTO (Bel): Gilbert
QUICK STEP (Bel): Boonen
RABOBANK (Hol): Freire, Boom
SKY PROFESSIONAL CT (GBR): Boasson Hagen, Flecha, Lofkvist
TEAM HTC-COLUMBIA (Usa): Cavendish
TEAM KATUSHA (Rus): Pozzato
TEAM MILRAM (Ger): Gerdemann, Ciolek
TEAM RADIOSHACK (Usa): Armstrong
TEAM SAXO BANK (Dan): Cancellara, Frank Schleck, Andy Schleck

No Footon, Vacansoleil (Bozic) and Ceramica (Ricco) are invited.

See also  Tuttobiciweb

The Vuelta organizers have announced the teams which are allowed to participate in september.

These teams are:

AG2R LA MONDIALE
ANDALUCIA CAJASUR
ASTANA
BBOX BOUYGUES TELECOM
CAISSE D'EPARGNE
CERVELO TEST TEAM
COFIDIS LE CREDIT EN LIGNE
CONTENTPOLIS-AMPO
EUSKALTEL-EUSKADI
FRANÇAISE DES JEUX
GARMIN-SLIPSTREAM
LAMPRE-N.G.G.
LIQUIGAS
QUICK STEP
RABOBANK
SILENCE LOTTO
TEAM COLUMBIA - HIGH ROAD
TEAM MILRAM
TEAM SAXO BANK
VACANSOLEIL PRO CYCLING TEAM
XACOBEO GALICIA

So no Fuji and Katusha from the ProTour teams.

But with three extra spanish teams (Andalucia, Contentpolis and Xacobeo) plus Cervelo and Vacansoleil.