Long Term Investors?

Any investors/investment firms that are open to investing in searchers over an extended period? I have a vision to purchase 3-4 companies in the service sector, eventually rolling into a more established entity that would cover multiple territories, etc. This feels more like a 5-10 year plan than the standard 5-year strategy. For Context: I already did a small purchase on my own, but it seems clear I would need a capital and/or operational partner to achieve the type of scale I am hoping for.