NFL limits each team to 30 college players who can visit the team at their headquarters.

Here is who I know has either made the trip or been invited:
Jonathan Cyprien S
Josh Evans S
Duke Williams S
Tyrann Mathieu CB
David Quesenberry C/OG
Luke Marguardt OT
Quiton Dial DL
John Jenkens DT
Lawrence Okoye DE (British discus thrower)
Tavon Austin WR/KR/PR
Tyrone Goard WR
Greg Wilson WR
Matt Furstenberg TE
Travis Kelce TE
?