About Us
Explore our portfolio of innovative structural engineering solutions across commercial, residential, and infrastructure sectors.
Syam Mannava, P.E., S.E.,Principal, SAI, LLC
Syam S. Mannava is a Licensed Professional Engineer in the state of Oklahoma and 14 other states. He founded SAI Engineering, PLC in July 2006 as a Sole Member and prior to that he was a Principal Engineer and Member, PLC of Pendergraf Engineering, PLC. He has a Master’s Degree in Civil (Structural) Engineering from University of Oklahoma (1997). His educational qualifications include a Bachelor’s Degree in Civil Engineering (1981) and complete course work for a Master’s in Geotechnical Engineering (1994); both from Osmania University, India. From 1991 to 1994 he worked for the State Bank of Hyderabad, a Public Sector undertaking of Government of India, as an Engineering Manager and as a Civil Engineer at junior and middle management levels in the private sector in India from 1981 to 1991.
Specialty
History
SAI Engineering is a specialty structural engineering firm that has roots spanning more than 45 years. The company is owned and operated by brothers Brock Ring, PE, and Brantlon Ring, who acquired the company in January 2026. We’re committed to maintaining the strong reputation this firm has built for technical excellence and practical solutions. It is our mission to carry this company forward for decades to come and make sure SAI stays a reliable name in structural engineering.
Before that, SAI Engineering was owned and operated by Syam Mannava, PE, SE, who remains actively involved as the Principal Structural Engineer. Mr. Mannava grew the firm’s capabilities while also expanding operations through the establishment of a dedicated office in India, staffed by an experienced team of engineers and drafters.
The firm traces its origins to 1977, when Garland Pendergraf, PE, founded Pendergraf Engineering. Syam Mannava joined in 1996 and later purchased the company in 2007, forming SAI Engineering.
Structural Designs
Our structural designs for buildings have ranged from a million dollar Bank Building, to a 5 million dollar 3-story Hospital, to a 7 million dollar Auditorium-Gymnasium, to a 10 million dollar Aircraft Maintenance Facility, to a 12 million dollar 4-story office building, to a 52 million dollar 300,000 SF High School Building. We also designed 2 to 3 million dollar Large Residential Buildings ranging in size from 6,000 to 11,000 square foot. We are equally comfortable designing and detailing with structural steel, light gage metal, tilt-up or cast-in-place concrete, or wood. We use current up to date computer programs to aid us in engineering and drafting.
Why Choose Us
Our team of highly qualified structural engineers is committed to delivering projects on time and on budget while strictly adhering to building codes and prioritizing safety.
We combine technical excellence with a collaborative, easy-to-work-with approach without ever compromising on design quality. From concept through completion, we provide nationwide structural engineering services that meet the highest industry standards.
We specialize in designing and detailing structures using a variety of materials including structural steel, light-gauge metal, tilt-up and cast-in-place concrete, wood, ICF, and others.
Through active involvement in leading professional organizations such as the American Council of Engineering Companies (ACEC), Oklahoma Structural Engineers Association (OSEA), ASCE, and ACI, and through ongoing continuing education, we stay current with the latest advancements in the field.
We are licensed to practice structural engineering in Oklahoma as well as over 30 additional states.