Tendril and Simple Energy, two Colorado-based startups focused on utility customer data analytics and energy engagement, have merged into a one-stop-shop for utilities’ customer-facing software needs. Uplight, the name of the newly merged company, counts around 75 North American utilities as customers, including Duke Energy, National Grid, Exelon, Southern Co., PSEG, AEP and Consumers Energy, serving a combined 100 million customers. Tendril’s business lines have grown substantially in the six months since its long-running venture investors were bought out through an undisclosed majority investment by private equity investor Rubicon Technology Partners.