Twining
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Special Inspection – Material Testing – Geotechnical Engineering “Excellent Service, Exceptional Value” With over 20 years in the industry, Twining Consulting, has the project experience and industry resources to provide the most cost-efficient testing, inspection and engineering services in Califor... Read more
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Co-CEOs
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Boris Stein
SVP & CEO, Concrete Insight
Linas Vitkus
President & COO
Liangcai He
Chief Geotechnical Engineer
Steven D. Schiffer
SVP, Client Services
Amy M. Owens
VP, Human Resources
Mariel Attento
VP, Client Development
Sammy Daghighi
VP, San Diego, Inland Empire, Northern California
Randy Saunders
VP, Modular Structures
Yiwen Bu
Director, Concrete Engineering
Eugene Raymundo
Director, Condition Evaluation Services
Shawn Tibbits
Director, Inspections, Industrialized Buildings
Andrew Falkenburg
Laboratory Manager, Testing & Materials Evaluation
Meredith Strow
Principal Petrographer
Conor O’Dowd
Petrographer
