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About Us

OnScale was founded in 2018 by a team of scientists and engineers dedicated to delivering world-class CAE on next-gen Cloud HPC.

OnScale Computer-Aided Engineering tools are based on proprietary multiphysics solvers that were developed and validated over 30 years by one of the largest engineering consulting firms in the world for DARPA, the U.S. Department of Defense (DOD), and large commercial customers.

The CAE solvers were architected for highly parallel mainframe computers to handle very large engineering simulation problems and are a perfect fit for modern cloud-based, high-performance computing. OnScale and its new team were spun out of Thornton Tomasetti in 2017.

OnScale gives engineers a wealth of design insights and highly accurate simulation results up to 100x faster than legacy CAE offerings. Current OnScale solutions address the simulation needs of Semiconductor and MEMS, 5G mobile, next-gen biomedical, and autonomous vehicle markets.

OnScale Leadership Team

Executive Team

Ian Campbell
Founder, CEO
Ian is an engineer and entrepreneur. Prior to founding OnScale, Ian founded NextInput, an award-winning Silicon Valley tech company that brought a new IoT sensor tech from concept to high-volume design wins in four years.
Robbie Banks, PhD
Founder, VP of Product
Robbie built the core OnScale team and technology. Former Director of the PZFlex BU at Weidlinger Associates, Robbie led the initiative to spin out the business and fully commercialize the software. Having previously worked in Oil & Gas, Defense and research, he and his team have created very advanced CAE tools targeted at what engineers need.
Andrew Tweedie, EngD
Founder & UK Director
Andrew is a multi-disciplined engineer with 15 years of experience in computer-aided engineering (CAE). Andrew supports EU growth and manages OnScale’s office in Glasgow, Scotland. He holds an Eng.D in Non Destructive Testing from University of Strathclyde.
Gerry Harvey, PhD
Founder, VP of Engineering
Gerry is a creative engineer with over 15 years’ experience in FEA, R&D and bringing emerging technology to market. He has worked closely with Fortune 100 companies, helping accelerate the development of their next-gen products through advanced simulation. He holds a Ph.D. in Electrical Engineering from the University of Strathclyde.
Ryan Diestelhorst, PhD
VP of Strategy
As VP of Strategy, Ryan is helping to define the direction of OnScale’s growth and shore up its intellectual property position to create long-term enterprise value. Prior to joining OnScale, Ryan was co-founder and CTO of NextInput, an award-winning Silicon Valley MEMS sensor company.
Joe Yeager
VP of Sales
Joe oversees worldwide sales at OnScale. His 25+ years of enterprise software and SaaS experience include sales at Cadence, Mentor Graphics, Synopsys, CliQr and various software start-ups involved in acquisitions totaling $1.4B. Joe holds a B.S in Electrical Engineering and Computer Science from Santa Clara University.
Masha Petrova, PhD
VP of Marketing
Masha oversees global marketing and communications at OnScale. Her 15+ years of industry experience includes marketing at ANSYS, MSC Software (now part of Hexagon MI), and a number of engineering software start-ups. She holds a Ph.D. in Aerospace Engineering from UCSD.
Sean Stoffel
Director of Finance & Operations
Sean oversees all Finance and Operations of at OnScale. He has experience in technology companies dealing with the legacy high costs of CAE softwares. He has experience at fast moving startups involving IPOs, acquisitions on both ends of the deal, and divestitures.

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