OnRamp, the Boston-based company behind the leading intelligent customer onboarding and engagement platform, announced it has raised $15 million, completing its Series A funding, led by new investor Koch Disruptive Technologies (KDT), as well as contributions from existing venture capital investors Contour, Javelin, Pear and other investors. This brings the company's total funding to $27 million. The company has achieved more than 100% year-over-year growth, driven by demand from market-leading companies.