It's critical to pick a venture that would maximise your investment if you have $100k to invest in a new firm. Software as a service (SaaS) enterprises, online stores, and franchising are some of the best businesses to start with 100k. You can reduce risk and increase your chances of success by putting money into a tried-and-true business strategy or making use of technology. Before making any selections, make sure to properly investigate your options and consult with seasoned businesspeople.