Yi Zhang, PE, SE, MSCE, Founder & President of the Professional Engineering and Project Management Group (PEPM Group), is a woman-owned and operated business founded in 2010. PEPM Group is based in Tulsa, Oklahoma, with a branch office in Fayetteville, Arkansas. We are an engineering, drafting, 3D modeling, and project management firm. Our team of Professional Engineers (PE) is licensed in 49 states and provides U.S.-based and international technical support to our customers. 

 

With our combined engineering design knowledge and field experience, PEPM Group is capable of handling large- and small-scale projects. PEPM Group provides professional engineering services and specializes in food and meat processing facilities, manufacturing, and the oil & gas/energy sectors.

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PEPM Group is the 2025 & 2024 Gold - Best Engineering Firm winner in the Best of Northwest Arkansas and the recipient of the 2026 & 2025 Oklahoma Governor's Award for Excellence in Exporting.

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THE SUCCESS OF OUR CUSTOMERS
IS THE CORNERSTONE OF OUR BUSINESS.

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We pride ourselves on the quality of our work, and over the years, we have built a reputation for exceeding client's expectations.