Tier 1 visas refer to the group of high net worth visas for buinesses minded migrants and investors. The current visas available are:
Tier 1 Innovator visa scheme is for people with access to at least £50,000 to invest in the UK to set up a UK business.
Tier 1 Exceptional Talent visa is for people endorsed by a designated body as a leader or emerging leader in the fields of science, humanities, engineering, medicine, digital technology, fashion or the arts. Limited to 2000 places a year.
The UK Start Up Visa is a new visa category that will replace the Tier 1 Graduate Entrepreneur visa program. Because of the endorsement requirement this visa may be difficult to come under at the moment.
Tier 1 Investor visa For people who have at least £2,000,000 available to invest in active and trading UK registered companies.