Many here have funds with more than one company, and that occurs for a variety of reasons including the fact that you may start savings in one company but you j*b may only offer investment opportunities with different companies. Your situation is a case in point. There is nothing intrinsically wrong with this approach, as long as you look at your investments as a whole and develop your allocations accordingly.
On the other hand, the benefits of one company is that it can be easier to keep track of your investments, and once your investments are sufficiently large, if consolidated, you can get better rates/fees with a larger single investment than from smaller investments in multiple locations.
I would not have anyone adopt my mode of living...but I would have each one be very careful to find out and pursue his own way, and not his father's or his mother's or his neighbor's instead. Thoreau, Walden