CardinalCommerce, a remote commerce and payment authentication service, has secured its own payment from Primus Capital Funds. The PE firm acquired a minority interest in the company. Cardinal's software platform enables authenticated payments, secure transactions and alternative payment brands for both eCommerce and mobile commerce. The company will use the additional capital to accelerate growth, expand sales and distribution capabilities and more quickly achieve its strategic objectives. Primus invests in high-growth companies within the software and technology-enabled services, healthcare and education industries, and is currently investing from its Primus Capital Fund VII.