File::exists($path) or File::makeDirectory($path);

This line does not make sense, as you check if a file exists and if not you want to attempt to create a folder ( in your $path variable you saved a path to a file not to a directory )

I would do something like that:

        // directory name relative to public_path()
    $dir = public_path("company_img/username"); // set your own directory name there

    $filename = "test.jpg"; // get your own filename here

    $path = $dir."/".$filename;

    // check if $folder is a directory
    if( ! \File::isDirectory($dir) ) {

        // Params:
        // $dir = name of new directory
        //
        // 493 = $mode of mkdir() function that is used file File::makeDirectory (493 is used by default in \File::makeDirectory
        //
        // true -> this says, that folders are created recursively here! Example:
        // you want to create a directory in company_img/username and the folder company_img does not
        // exist. This function will fail without setting the 3rd param to true
        // http://php.net/mkdir  is used by this function

        \File::makeDirectory($dir, 493, true);
        // 493 什么意思 应该是 0755吧
    }


    // now save your image to your $path

But i really can't say your behaviour has something to do with that... Without error messages, we can only guess.