David C. Aldous, Chief Executive Officer

David joined Rive Technology as Chief Executive Officer in 2012.  He brings over 30 years of diverse experience in the refining, chemicals and catalyst industries, including over 20 years at Royal Dutch Shell where he was Executive Vice President of Strategy and Portfolio.  David also served as President of Shell Canada Products, where he led an $11 billion integrated oil business, which included refining.

David brings deep experience in the catalyst industry to Rive from his six years as President and CEO at CRI/Criterion, a global catalyst company with a focus on refining, chemicals, petrochemicals, and zeolites.  Prior to joining Rive, David was CEO of Range Fuels, a company commercializing cellulosic biofuels technology.

David holds a B.S. in Fuels Engineering from the University of Utah and an MBA with distinction from Northwestern University.

Daniel Carter

Daniel Carter is Investment Director at Saudi Aramco Energy Ventures US. Saudi Aramco Energy Ventures is the corporate venturing subsidiary of Saudi Arabian Oil Company (Saudi Aramco), the world’s leading fully integrated energy and petrochemical enterprise. Prior to his current role, Daniel was Principal at a venture capital fund in London from 2003-2012 focused on the energy sector with investors including Shell, KPC, Mitsubishi and Goldman Sachs. Prior to that, Daniel was Vice President at Citigroup/Salomon Smith Barney, where he was a co-founder of the Energy Technology practice, from 1996-2003 in Frankfurt, London, New York, and Melbourne. Prior to Citigroup, Daniel was with Heller Financial (Bank of Tokyo Mitsubishi), now GE Capital.

Daniel earned two MBAs from Columbia Business School and London Business School, an MA from University of Massachusetts at Amherst and a BS degree from Georgetown University. He sits on the Board of the London Business School Energy Club and the Board of the London Business School Alumni Club of Houston.


Jamie Kiggen

Jamie Kiggen is Chief Financial Officer of Litmus Software, a 100-person SaaS company in Cambridge, MA. He is responsible for all aspects of financial strategy and reporting, human resources, information technology, contracts and purchasing, and legal and regulatory compliance. Previously, Jamie ran his own strategic and financial advisory firm, with clients in the technology, financial services, and biotech industries.

Jamie was President of The Riverside Company, a $4 billion AUM private equity firm based in New York, where he was responsible for strategy, people development, new products, compliance and finance. He also chaired the firm’s Management Committee and was involved in all investment decisions as a member of the Riverside Investment Council. Prior to Riverside, he was a Senior Managing Director at Blackstone, where he launched and managed a venture capital/growth equity fund and evaluated technology and media investments in the private equity group. He also served as President of The Blackstone Foundation.

Before joining Blackstone, Jamie was at AllianceBernstein where he built and led an equity research team and founded the venture capital group. Prior to that, he was a Managing Director at Donaldson, Lufkin & Jenrette/CSFB where he was Director of Technology Research and a top-ranked equities analyst in the Internet sector. He began his investment career at Wellington Management Co. He also spent three years at McKinsey & Co. focusing on emerging technologies and financial services, and he played founding roles in a number of software development ventures.

Jamie received a BA from Harvard College and an MBA from Harvard Business School.


Dave Tippeconnic

Dave has over 40 years of experience in the energy industry. His previous experience includes 33 years at Phillips Petroleum Company, retiring as a Board Member, President of Phillips 66 Company and corporate Executive Vice President.

Dave has also served as President and Chief Executive Officer of CITGO Petroleum Corporation and as Chairman of the Board and acting Chief Executive Officer of Cherokee Nation Enterprises.  He is currently CEO of Arrow-Magnolia International, Inc. and serves on the Boards of ONEOK, Matrix Services Company and Cherokee Nation Enterprises.

Dave received his BS in chemical engineering from Oklahoma State University and an MS in chemical engineering from the University of Arizona. He also attended the Advanced Management Program at Harvard University.


Humberto Vainieri

Humberto brings a wealth of refining, process licensing and senior leadership experience to Rive Technology. He served as President and CEO of UOP, the leading licensor of technology to the refining, petrochemicals and gas processing industries with annual revenues of more than $1 billion. Prior to joining UOP, Humberto had a 25-year career with BP, where he was Executive Director of BP’s downstream refining division. Most recently he was Senior Vice President of R&D and Engineering for Yukos in Moscow. He is currently president of his own company, Vainieri Consulting.

Humberto earned his MS and PhD in chemical engineering from the University of Pittsburgh and his MBA from John Carroll University. Humberto is a member of the University of Pittsburgh Engineering School Advisory Board and also on the Advisory Board of The International Fuel Quality Center. He is also on the Board of Chemrec, a Swedish company that is the world leader of black liquor gasification technology.


Bill Wiberg

Bill is a General Partner at Advanced Technology Ventures, where he focuses on investments in the cleantech sector. He joined ATV in 2003.

Bill has 27 years of operating and venture capital experience, including serving as President of Lucent Technologies’ Cellular and PCS Wireless Networks division. He has also served on the Board of Directors and Executive Committee of the Cellular Telecommunications and Internet Association (CTIA). Bill’s investments include Coskata, CombineNet, GreatPoint Energy, Handango, HVVi, Useful Networks, and Visage Mobile.

Bill received his BS from Cornell University and his MS from Stanford University. He holds an MBA from Columbia University.


Mike Zak

Mike is a General Partner with Charles River Ventures, where he has been an investor since 1991. Mike’s investments span communications, technology and renewable energy. His track record includes successful investments in Verenium Corporation, CIENA Corporation, American Internet, ON Technology and Speechworks.

Prior to his work with Charles River Ventures, Mike co-founded Concord Communications and had prior roles with Motorola and McKinsey & Company. He is Vice Chairman of the Board at Emerson Hospital and on the Board of Trustees at Cornell University.

Mike received his BS from Cornell University and his MBA from the Harvard Graduate School of Business.