Only Specialized and Canyon are providing more than one team bikes (3 and 2 respectively). Shimano drivetrains are on 10 team's bikes, Campy 5 and SRAM 3. Shimano provides 6 teams with wheels, Campy/Fulcrum with 5 and SRAM/Zipp with 2. Smaller companies fill out the rest with Mavik supplying two teams.
Cockpits, helmets and clothing are also listed, but the trends are not as strong. 7 manufacturers provide cockpits and 14, helmets.
Not earthshaking news, but kinda interesting.