So it’s wise to cast your net wide if you are evaluating SIs in addition to software products. It will be easy to filter out the most appropriate candidates for the next, more in-depth level of evaluation – but only after seeing each vendor’s reply in a later step
As you utilize tools such as the Gartner Magic Quadrant to evaluate vendors, look for a vendor who specializes in ECM, where they have specific expertise in your industry and provide a platform which is easily configurable without requiring custom code to meet your exact needs