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Leadership 2017-06-01T11:39:59+00:00

Management Team

Meet the Lightning Systems management team. Diverse skills and years of experience from a range of industries ensure that we’re the best at what we do, delivering best value for our customers, investors and employees.

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Tim Reeser

CEO and Co-Founder

Tim ReeserTim Reeser is CEO and Co-Founder of Lightning Systems. Lightning Systems manufactures hydraulic hybrids and other efficiency improvement products for heavy duty vehicles, including fleet trucks, buses, and off-highway vehicles, reducing emissions by over 50% while providing a fast ROI through fuel savings, with a market opportunity of more than 45 million vehicles worldwide. Lightning Systems’ investors include Castrol Innoventures and Aravaipa, and customers to date include UPS, DHL, National Express and NREL.

Tim has a BS in Mechanical Engineering from CSU, and has been involved with alternative transportation technology since 1990, when he helped design the first dedicated CNG truck for GM while at Colorado State University.

Prior to co-founding Lightning Systems, Tim served as Vice President of Colorado State University Ventures, where he spun out clean-tech companies and built the framework to support accelerated growth of spin-outs and spin-ins at CSU.

Robert Fenwick-Smith

Chairman of the Board

Robert Fenwick-SmithRobert Fenwick-Smith serves as the chairman of the board of directors for Lightning Systems. As the Senior Managing Director of Aravaipa Ventures, he is one of Lightning Systems’ key investors.

Robert founded Aravaipa in early 2008 with 20 years of global experience managing, acquiring, founding, building, merging, and selling companies. He currently serves as Chairman of AXIT AG (Germany), a leading Cloud Supply Chain Management company, where he led a turnaround to current high profitability.

He holds a BA in Economics from HEC Lausanne (Switzerland) and an MBA from Harvard Business School. Robert is frequently invited to speak and serve on Cleantech and Impact Investing panels. He serves on the Executive Committee of the Board of the Colorado Cleantech Industry Association and has built a LEED Platinum home in Boulder, CO.

Rob Mulcair


Rob MulcairLeading the Accounting, HR, Purchasing, and IT Departments at Lightning Systems, Rob Mulcair serves as CFO. He manages the day-to-day accounting and business activities through financial reporting and forecasting, budgeting, and cash and asset management. In addition, Rob carries out HR functions including employee relations and staff development.

Rob holds a degree in Accounting with a minor in Computer Science from William Patterson University along with an M.B.A. in Managerial Finance and Management Information Systems from Indiana University’s Kelley School of Business.

Having joined the company in March 2014, Rob is absolutely essential to the financial and business side of Lightning Systems. With the majority of his career being within technology companies, Rob thrives in a technical environment with strong engineering and design principles.

David Brosky

Vice-President, Sales

David BroskyBased in the Detroit region, Dave Brosky is Vice-President of Sales for Lightning Systems, responsible for leading the sales effort in North America. He builds strong relationships and secures new business opportunities with customers and partners including Original Equipment Manufacturers (OEMs), dealers/distributors, upfitters/installers and service partners.

He has 25 years of experience in sales, marketing and program management for leading automotive and commercial vehicle parts and equipment suppliers, including Dana Corporation and Robert Bosch. He joined Lightning Systems in March 2014.

For the last 10 years of his career, he has lead the business development and sales efforts for innovative, disruptive technologies resulting in either successful spin-offs or self-sustaining business entities.

Brian Johnston

Director of Emissions Regulation and Strategy and Interim Director of Production

Brian JohnstonBrian Dean Johnston serves Lightning Systems as the Director of Emissions Regulation and Strategy. He is responsible for the development, performance testing, and certification of a proprietary hydraulic hybrid Energy Recovery System.

Brian joined Lightning Systems in 2012. He has expertise in both chassis dynamometer and Portable Emissions Measurement System (PEMS) testing. He represents the company for all emission testing and regulation activities including for the Environmental Protection Agency, California Air Resources Board, and others.

Academic achievements include a B.S. in Mechanical and Aerospace Engineering from Cornell University, and a M.S. in Systems Engineering from Colorado State University. His graduate research evaluated Vehicle-to-Grid systems.

Brian began his professional career as a U.S. Navy pilot, where he served with distinction, retiring at the rank of Commander. He later directed engineering and flight test programs as Lead Systems Engineer for Lockheed Martin’s HC-144A Maritime Patrol Aircraft.

Keith Lehmeier

Director, Technology Integration

Keith LehmeierBridging the gap between product development and field maintenance, Keith is responsible for the successful deployment of the LightningHybrid system into new vehicle platforms, ensuring that the system functions correctly and is tuned optimally to give the best performance and experience for the customer. His focus is worldwide, with activities in the US, the UK and elsewhere. He enjoys the opportunity to blend purely technical work with a broader management approach to achieve the best results for our customers. He is as interested in regarding Lightning Systems, its partners and its customers as a “system” that can benefit from engineering principles as he is in the nuts, bolts and hoses of the ERS. He has contributed to the company’s transition to a more analytical and data driven approach to engineering and business. Prior to his current role, Keith served LS as a controls engineer and system engineer.

Keith obtained a BS in Mechanical Engineering from Colorado State University, during which time he worked as an intern at Woodward, focused on a technology that improves the overall efficiency of electrical wind turbines. On graduation, he joined Woodward’s aircraft division working on air control valves, a role which combined product development with testing.

Ross MacKerron

Business Development Director

Ross MacKerronRoss MacKerron is the Business Development Director for Lightning Systems International, where he leads market and business development efforts primarily in the UK and European markets. Ross is based in our UK office at MIRA in the Midlands. He is focused on developing and implementing sound sales strategies to achieve profitable and sustainable growth of the Lightning Systems products with commercial fleets, OEMs and distribution partners.

Ross has over 25 years motor industry experience and has worked previously in operational management roles with Honda, Ford and Chevrolet. As International Sales Manager for The London Taxi Company, he was responsible for significantly growing sales of the iconic ‘London Black Cab’ into European markets while also project managing the development of a fully electric model – which are still operating on the streets of Amsterdam today. In his most recent role, Ross lead the automotive business development efforts for the internationally respected Transport Research Laboratory.

Ross is a passionate advocate of low emissions drivetrains and also a self-confessed ‘petrol head’ who is as happy working under a vehicle as he is negotiating around a boardroom table.

Jonathan Reynolds

Lead System Architect

Jonathan ReynoldsJonathan Reynolds is the Lead System Architect for Lightning Systems, and focuses on the development of technology used for Lightning Systems’ advanced hybrid systems. He is responsible for electrical and circuit design, software development, data processing, system testing and oversees hydraulic circuit design. He leads development of our control systems and their compatibility with vehicle computers — integration that makes our technology possible.

Listed on our patent as one of the inventors of Lightning Systems’ proprietary hydraulic hybrid technology, Jonathan has been with Lightning Systems since 2010. In his spare time, he has designed and built an electric-only pickup truck and is working on the development of a better, cheaper high-power motor controller, DC-DC converter, and battery charger. He enjoys developing complex systems and finding solutions to unique challenges.

Jonathan has over 16 years of controls experience. He holds a B.S. in Mechanical Engineering from Colorado State University and is currently working on his MBA.

Mark Stauder

Senior Engineering Manager

Mark StauderAs the lead project engineer in charge of mechanical design and integration, Mark develops platform designs, delegates workload responsibilities and schedules project timelines. Mark’s chief initiative is to manage the design of our systems to ensure that we are producing according to projected goals and as efficiently as possible.

Bringing nearly 20 years of engineering experience to Lightning Systems, Mark holds a Bachelor’s degree in Mechanical Engineering from Colorado State University.

Joining the Lightning Systems team in November 2012, Mark loves the atmosphere and the work we do. He has a strong personal interest in making things more efficient and is excited to be designing a product that will help reduce emissions and our reliance on unrenewable resources. In addition, he envisions massive potential in the market since our technology is effective and offers a significant (and timely) return on investment.

Bonnie Trowbridge

Vice-President, Marketing and Communications

Bonnie TrowbridgeBonnie has been with Lightning Systems since the beginning of the company, providing branding and marketing for all stages, from a 100 MPG sports car concept through a multi-national hybrid vehicle company. In addition to directing the global Lightning Systems brands, she manages all marketing efforts worldwide, handles international media relations, government relations, and is responsible for managing grants and incentives for both customers and the company.

Prior to joining Lightning, she raised over $20 million for environmental and human services non-profits/NGOs through public awareness, major gifts, and grants, and has over 20 years of marketing and communications experience in a variety of fields. She has a Bachelor’s degree in Art from Colorado State University.

Tyler Yadon

Director of Customer Operations

Tyler YadonTyler Yadon serves Lightning Systems as Director of Customer Operations and Analysis. Leading the department in charge of all LightningHybrid systems in the field, Tyler provides customer care by managing maintenance and service operations, developing and supporting the LS service network, and ensuring all ERS systems are operating reliably. In addition, Tyler directs the analysis team, which tracks, analyzes, and reports system performance in real-time.

Tyler joined the team in 2012 and is one of the chief players in the development and actualization of the ERS product. He has served LS as Controls Engineer and System Support Manager and has expertise in project management, client support, software development, circuit board design, electronics and hardware implementation, automotive integration/engineering, and mechanical engineering.

Tyler holds a B.S. in Mechanical Engineering from the University of Colorado. He served as Project Manager on the CU Formula SAE Racing Team, earning top marks for business proposal and marketing at the SAE International competition, and winning “Best Mechanical Design Project” at CU’s Engineering Design Expo.