When cold calling, 3% - 4% conversion rates are considered good. You chose to enter a crowded market. It is always difficult to compete with more established,

When cold calling, 3% - 4% conversion rates are considered good. You chose to enter a crowded market. It is always difficult to compete with more established, better known vendors. You really need to differentiate substantially in order to make your product more appealing than your competitors. LinkedIn has become yet another spam infested quasi-social network. Perhaps you should look at who your current clients are. Create profile(s) of them and then actively target using phone calls, direct mail, in-person calls. Those might be old school but since nobody uses them these days, you can stand-out by being different. But remember, you still need to quickly demonstrate the value of your product -- increased revenue, profit, productivity or a significant reduction in costs, time to market, etc.