About Carla As founder, president and CEO of Walker-Miller Energy Services, LLC (WMES), Carla Walker-Miller is an analytical and savvy businesswoman with over 20 years of energy industry experience. Established in 2000, the Detroit-based firm designs and implements energy efficiency solutions for utility, residential and commercial clients. The company offers innovative energy waste reduction solutions that help decrease energy consumption, and contribute to occupant safety and comfort. Walker-Miller Energy Services is one of the fastest growing energy companies in America.