Location: Houston, TX

Industry: Engineering and Industrial Services

Founded in 1991 and based in Houston, Texas, Ely & Associates is an industry leading petroleum engineering and consulting firm. The company specializes in providing design, evaluation, and quality control of hydraulic well stimulation. The supervision provided by Ely ensures that the job proceeds smoothly, and according to the design. This niche is arguably the single most important variable that determines the economics of a well. With a staff of more than 80 engineers, Ely is the largest frac well optimization company in the U.S.