Nexum Group helps energy and utility companies in Derry, New Hampshire recover outstanding balances on unpaid bills, delinquent accounts, and past-due invoices. Whether you provide electricity, gas, water, or renewable energy services, our team has the experience and licensing to recover what you are owed. We work across the energy sector throughout New Hampshire, providing compliant B2B and B2C collections. Licensed in New Hampshire and committed to professional collections. Call 877-652-0822 or visit nexumgroupinc.com.