Securing a business loan from a bank or other financial institution is the most popular way. However, this can be tricky if you don't have a strong credit history or collateral to put up.
Another option is to seek out investors or venture capitalists interested in funding startups.
Crowdfunding and government grants are also viable options, but they can be competitive and time-consuming to secure.
When all is said and done, the best way to finance your trucking company startup depends on your circumstances and goals. See what options you have and review them before officially deciding on one.