Leadership

Edward "Butch" M. Twining, Jr.
Co-Chief Executive Officer / Chairman of the Board

Edward "Butch" M. Twining, Jr.

Co-Chief Executive Officer / Chairman of the Board

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As the fourth generation of the Twining family to oversee the firm, Edward Twining, Jr. continues the company’s tradition of technical excellence and responsive service. He provides vision and leadership to the growth and development of the company. His focus is to instill his family tradition into the larger family of employees, to foster relationships with long-term clients and actively advance the growth of the company.

Robert M. Ryan, CWI-QC1, ASNT Level III
Chief Executive Officer / President

Robert M. Ryan, CWI-QC1, ASNT Level III

Chief Executive Officer / President

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Robert M. Ryan has been a member of the Twining team since 1978. He oversees management practices and provides executive oversight to the leadership team. In his role, Mr. Ryan exploits his knowledge of both the technical and business aspects of Twining’s many endeavors. Mr. Ryan has extensive experience in all aspects of inspection, materials testing, and nondestructive testing. Mr. Ryan led Twining’s inspection personnel on some of Southern California’s most prominent projects. His expertise in steel construction, welding inspection, and nondestructive testing has made him a primary resource for the Southern California structural engineering community.

Boris Stein, DSc
Senior Vice President, Applied Engineering and Research

Boris Stein, DSc

Senior Vice President, Applied Engineering and Research

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Dr. Boris Stein is a materials scientist, consulting engineer and educator with extensive experience in cementitious based materials, concrete technology and construction. Dr. Stein holds fifteens certificates on inventions and patents and is the author and coauthor of numerous technical publications and books. He has contributed to the development and implementation of special concretes for fast track construction and the rehabilitation of concrete pavements, concretes with industrial by-products and waste materials, processes of manufacturing of precast concrete, and more. Dr. Stein leads work performed by Twining in the areas of concrete technology, evaluation of materials for concrete, rigid pavements, investigation of concrete in existing structures, and engineering of cementitious based materials.

Linas Vitkus, PE, GE
Senior Vice President, Operations

Linas Vitkus, PE, GE

Senior Vice President, Operations

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Linas Vitkus, PE, GE, has been involved in construction projects throughout California for his entire professional career of over sixteen years. Mr. Vitkus’ experience includes geotechnical subsurface investigations, forensic investigations, laboratory testing, materials inspection, and project management. Mr. Vitkus has acted as project manager, technical supervisor, or project executive for many of Twining’s most significant projects, including schools, universities, hospitals, and high rise structures. In addition, Mr. Vitkus provides guidance, leadership, and oversight of our other project managers and is responsible for corporate oversight of the operations of Twining’s network of offices/laboratories.

Talin Espinoza
Senior Vice President, Strategic Growth

Talin Espinoza

Senior Vice President, Strategic Growth

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In her role as Senior Vice President of Strategic Growth, Talin Espinoza leads the company's M&A, branding, marketing and sales operations. Talin specializes in revenue driven strategic growth facilitation and customized branding plan execution. She works closely with Twining ownership to develop and grow an industry-specific brand that holistically addresses the customer’s buying experience and seamlessly connect the customer to the company’s vision and voice. Talin is currently serving on the Board of Directors for the Association of General Contractors Los Angeles Chapter (AGC) and Construction Management Association of America Southern California Chapter (CMAA). Her work has been published in the PSMJ A/E Marketing Journal. Talin is a graduate of the Art Center College of Design in Pasadena.

Steven D. Schiffer
Vice President, Business Development

Steven D. Schiffer

Vice President, Business Development

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Steven D. Schiffer ensures the company's continued success through his business development efforts in a wide variety of markets including schools and universities, hospitals and healthcare facilities, arts and entertainment venues, industrial buildings, mixed-use developments and commercial construction.

Paul C. Soltis, PE, GE
Vice President, Geotechnical Operations

Paul C. Soltis, PE, GE

Vice President, Geotechnical Operations

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Paul C. Soltis, PE, GE, is a California Registered Civil and Geotechnical Engineer with over ten years of experience in geotechnical engineering. Mr. Soltis oversees Twining's geotechnical division, and his experience includes geotechnical site investigations and evaluations, geotechnical design recommendations, construction oversight, and forensic evaluations for residential, public infrastructure and commercial projects.

Richard S. Hazen, PG, CEG
Vice President, Forensics

Richard S. Hazen, PG, CEG

Vice President, Forensics

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Richard S. Hazen, PG, CEG, is a California Professional Geologist and Certified Engineering Geologist with over 30 years of experience as a geologist in California. His education includes degrees from UCLA and Stanford University. As Principal Engineering Geologist, Mr. Hazen heads Twining's Forensics Division, providing expert witness services to attorney and insurance company clients throughout southern California. He also leads fault and landslide investigations as well as geologic site evaluations in support of design projects for Twining's Geotechnical Division.

Amy M. Owens, SPHR
Vice President, Human Resources

Amy M. Owens, SPHR

Vice President, Human Resources

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As the head of our human resources department, Amy Owens, SPHR, brings over fifteen years of experience to Twining. She is responsible for the company’s organizational and employee development in support of Twining’s strategic goals. Her expertise includes business leadership, talent acquisition, employment practices, workforce planning, benefits & compensation, and employment relations.