Best LED Signage Agency in Dhaka Bangladesh LED signage for business is the best marketing tool to engage the people outside your doors who are most likely to come inside. If you don’t have a digital sign, now is the time to get one and if you have had one for a while, you’re likely looking to upgrade. Before you invest in a new LED sign, you want to make sure you’re getting the best sign on the market, that actually will grow your business.