Formal requirements
Sweden does not currently offer a golden visa or citizenship by investment programme.
Other investment opportunities
Residence permit for highly qualified persons to look for work or start a business
In order to obtain a residence permit to seek employment or explore the possibilities for starting a business in Sweden, you must
have completed studies corresponding to an advanced level degree
plan to seek employment or explore the possibilities for starting your own business
be able to support yourself during the period for which you are applying for a permit and have money to cover the cost of your journey home
have comprehensive health insurance valid for care in Sweden
have a passport valid for the entire period you intend to be in Sweden (you cannot get a permit for longer than your passport is valid)
currently be located outside of Sweden.
During the period that you have this residence permit, your family cannot move to Sweden to live with you.
The permit may be granted for a minimum of three months and for no more than nine months.
Residence permit for people who have their own business
To apply for a residence permit to run your own business, you must
have a valid passport (you cannot get a permit for longer than your passport if valid)
show that you have considerable experience in the industry and previous experience of running your own business
show you have relevant knowledge in Swedish or English. If you have contact with, for example, many suppliers or customers in Sweden, you must have very good knowledge in Swedish.
prove that you are the person who is running the company and has executive responsibility for the business
show that you have enough money of your own to provide for yourself and any family members, the equivalent of SEK 200,000 for you, SEK 100,000 for your accompanying wife/husband and SEK 50,000 for each accompanying child for a permit period of two years
present plausible supporting documentation for your budget
show that you have created customer contacts or a network
in most cases pay an application fee.
The Swedish Migration Agency will do a financial assessment of your business plans.
To be registered as living in Sweden, you must have a permit that is valid for at least one year and you must be planning to live in Sweden for at least one year.
Self-employed persons who are going to work for less than three months in Sweden do not need a residence permit. The citizens of some countries must have a visa even for work lasting less than three months.
Link to the Swedish Migration Agency
https://www.migrationsverket.se/English/Private-individuals/Working-in-Sweden.html