[FrankJ]

Pretty much what Eric said.

Your team decides who you call sponsors. No place to register them in an official First capacity that I know of. They will also be sponsors of First team XXXX, not First the corporation.

Mentors (individual people) are registered in TIMS by the primary or secondary team contact. (The people with TIMS log in for the team.) Once again your team decides who you call mentors. They then log on & sign a release. Probably only important if they are attending competitions. Oh it also gets you a mentor pin & thank you letter.

Landing a sponsor is only the first step (no pun intended). You need to be continually selling them on what you are doing with their resources. Not only the awesome robot you build, but the STEM benefits to your team & community.