Hi sethchen,
welcome to the Apple (user-to-user) Community.
Re: MFi enroll with different user ID in the same company.
Am no expert in this area, yet your request to the community deserves some response.
As we are all Apple users, like yourself, in the community ... Apple is not here to answer your Mfi enroll questions.
Sorry I do do not know enough to advise you. Eg: The company your colleague works for may have the actual enrollment, or not. Eg: Your colleague would likely know the procedure for you to join in the company's enrollment.
or
You may be wanting to enroll in the program for yourself, we do not know.
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If needed: How the Program Works: https://mfi.apple.com/en/how-it-works
Perhaps something below will at least give you the next step to take, if not the answers you seek:
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Apple support has articles online that can explain tho procedure and responsibitliies involved in the Mfi program:
What You Need to Enroll : https://mfi.apple.com/enroll
Eg: says:
" Confirm that your company should join the MFi Program.
If you intend to develop or manufacture an electronic accessory which will connect to an Apple device using MFi licensed technology, your company must first join the MFi Program.
See Who Needs to Join for more details".:
Eg: says:
"This program is for companies planning to develop or manufacture accessories that use MFi licensed technologies. Before applying, make sure this is the right program for you."
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Mfi Program Enrollment: https://mfi.apple.com/en/help/login-help/MFi-Enrollment.html
Eg Says:
"To begin the enrollment process for the MFi Program, you must first create an Apple Account associated with your business email address before logging in to the program enrollment page. Follow the step-by-step instructions in this guide for creating and registering an Apple Account before proceeding."
All the best :-)