Stefano Corazza

CEO & Co-founder

The mastermind behind Mixamo’s advanced technology, Stefano Corazza applied his experience from the University of Padua Human Movement Lab and the Stanford University Biomotion Lab to develop the effective mathematical and machine learning solutions that support Mixamo.

Prior to Mixamo, Corazza was a research associate at the Stanford University Biomotion Lab until 2008 where he developed markerless motion capture technology and won the Stanford-Caltech-Berkeley Innovators’ Challenge in 2005. He additionally is the CTO and co-founder of, a Web 2.0 site for short-form literature based in San Francisco and co-founded and served on the board for Memory SRL, an enterprise software company based in Italy.

A true Renaissance man active within the domain of large scale kinetic and new media art and with a past as a paragliding test-pilot, Corazza holds a bachelor of science in mechanical engineering from University of Padua, a master of design from University of Florence, a Ph.D. in mechanical engineering and a Ph.D. in bioengineering and computer vision from University of Padua, part of which was completed at Stanford University.

Stefano is also very active in the Virtual Reality domain through investments, VR installations in Museums and by participating as a mentor in the world’s first VR accelerator at Rothenberg Ventures.

Jeremy Biddle

Director of Engineering

Jeremy’s first web application hurled random insults at visitors in Shakespearean prose. An ignominious introduction to the slings and arrows of web application development, perhaps, but his work at Mixamo provides the perfect balance between his love of art, games, graphics, and that most amazing part of the digital artist’s toolchest that ties them all together -- the computer.

Jeremy is responsible for the keeping the Mixamo technology stack running and under constant development by our team of elite engineers. The back end web application architecture, the front end UI, tying together the many amazing services that the R&D team cook up, and managing the myriad platforms it all runs on, Jeremy and his team thrive on the fast paced development and the small company culture that that makes up Mixamo.

He received his BA in Computer Science at Boston University. Aside from badgering computers to do his bidding, he likes to fuss around with pencils, engines, languages, as well as clambering around on mountain trails from time to time.

Emiliano Gambaretto

Director of Research & Development

Emiliano Gambaretto obtained a PhD degree in Bioengineering from Politecnico di Milano (Italy) in 2011 for his research on Markerless Motion Capture. Part of his research was carried out at Stanford where he first met Stefano in 2006. He also received a Master’s Degree in Biomedical Engineering from Politecnico di Milano and a Diplome d’Ingenieur from Ecole Centrale de Lyon (France) in 2006.

He was part of Mixamo’s founding team in 2008. He’s currently Director of Research at Mixamo. His job consists of designing and developing the technologies behind Mixamo’s services. That includes motion models, auto-rigging, real-time face animation, integration with 3rd-party software and industry standards.

Mike Walsh

Vice President of Sales

Mike holds a Bachelor’s degree in Business Administration from St. Mary’s College and has over 20 years experience in the video game and technology industries. During his career, Mike has helped restructure and grow several sales organizations and offers a proven management record focused on building strong customer relationships. Prior to his position at Mixamo, Mike was the CEO of xaitment inc. where he handled the worldwide business, sales and growth of xaitment.

Before that he was the Vice President of Worldwide Sales for Havok where his duties included generating new business, renewing supporting contracts and managing sales operations in Asia, Australia, Europe, and North America. Mike has also served as North America and Australia Regional Sales Manager for Softimage, where he helped increase business for both the indirect and direct sales channels; Partner Sales Manager at Alias, where he assisted in the reorganization of the North American Northwest sales and oversaw sales to distribution channels; and spent 4 years at SGI, leading the rebuilding and growth of SGI’s Federal sales organization.

Board of Directors

A true Renaissance man active within the domain of large scale kinetic and new media art and with a past as a paragliding test-pilot, Corazza holds a bachelor of science in mechanical engineering from University of Padua, a master of design from University of Florence, a Ph.D. in mechanical engineering and a Ph.D. in bioengineering and computer vision from University of Padua, part of which was completed at Stanford University.

Chris Hollenbeck serves as Managing Director of Granite Ventures, LLC. He is also a Founding Member of Granite Ventures, LLC. Mr. Hollenbeck focuses his investments in software. He is interested in companies that capitalize on the current digital content explosion and next-generation software infrastructure technologies. Mr. Hollenbeck has been an Investment Manager at the Adobe Ventures Funds since July 1998 and has sponsored Adobe Ventures Funds investments in Digimarc and Vignette. From June 1996 to June 1998, he served as a Vice President in the venture capital department of Hambrecht & Quist LLC. From April 1991 to September 1995, Mr. Hollenbeck held various positions in the investment banking, mergers and acquisitions, and corporate finance divisions of Hambrecht & Quist LLC. He has been Independent Director of Convio, Inc. since March 2001.

He serves as a Director of Smule, inc., REWARDER INC., NetClerk Inc., Bunchball Inc., YottaMark, Inc., Covia Technologies, Inc., Oversight Systems, Inc., SonicMule, Inc., and Auditude, Inc. Mr. Hollenbeck has been a Director of ESPS, Inc. since July 1997, HireVue, Inc. since July 27, 2010 and Telltale, Inc. since June 12, 2007. He served as a Director of Avantgo, Inc. from May 1998 till its acquisition by Sybase, HAHT Commerce, Inc. since December 1997, Auditude, Inc., Convio, Inc., DecisionView, Inc., Movaris, Inc., Liquent, and Episodic, Inc. Mr. Hollenbeck holds a B.A. in American Studies from Stanford University.

With extensive experience in starting and growing several successful venture capital (VC) funded emerging technology companies, Nazim Kareemi co-founded Mixamo in 2008. He was CEO from 2008 to February 2011.

Kareemi co-founded Canesta in 1999 as its CEO, and subsequently served as its chairman of the board. Canesta has developed breakthrough CMOS 3D sensors, has been granted 40 patents, and got acquired by Microsoft in 2010.

Prior to Canesta, Kareemi was the founding CEO of PenWare, a VC funded technology firm. Under his leadership, PenWare attracted and retained some of the best people in the industry to develop award-winning software for mobile devices. PenWare acquired another company to successfully enter the retail point-of-sale terminal market and became public in 1996. The company was later acquired by Symbol Technologies, Inc. Before starting PenWare, Kareemi held engineering and management positions or consulted for companies such as Zilog, Xerox and Intel. He has a SB in electrical engineering from MIT and an MSEE and engineer’s degrees from Stanford University.

Alessandro Biral is a founder and general partner of KeyNote Ventures, where he focuses on digital media and the consumer internet. Prior to KeyNote, he was head of corporate finance, development, and technology investments for the Fininvest Group, a $15 billion media conglomerate owned by the Berlusconi family of Italy.

From 1994 to 1999, Alessandro was an investment banker at Morgan Stanley in London, where he completed more than $80 billion of strategic transactions. Alessandro holds an M.B.A. in finance from University of Pennsylvania’s Wharton School, and a B.S. in technology and industrial engineering from the Politecnico of Milan, Italy.

Board of Advisors

Currently a digital media and mobile industry consultant and advisor, Issac Babbs was the founder, CEO and chairman of Tapatap, Inc, a leading mobile social games company, until its acquisition by Limelife in March 2009. Babbs has additionally served as vice president and general manager of Infospace Mobile Games; founder, president and CEO of Atlas Mobile; president of Sorrent; vice president of entertainment marketing at Silicon Graphics, and has held senior roles at Alias/Wavefront and Alias Research, Inc.

As a VP and GM at Macromedia, where he co-founded US and Japan, Babbs led the company’s audio/video division to successful acquisition by Apple Computer. Babbs started his carreer in technology at Hewlett-Packard Company and has a BA in Chemistry from the University of Oregon.

Luc Barthelet currently serves as CEO of Tirnua, Inc. Following the sale of his software startup to Electronic Arts (EA) in 1988, he joined the EA team and held multiple roles during his twenty year tenure. As Group Studio Head, Barthelet was instrumental in the development of persistent state worlds including Earth and Beyond, The Sims Online and Ultima Online. He additionally served as general manager of Maxis where he led product development for The Sims, The Sims 2, SimCity 4 and SimCity 3000.

An avid Mathematica user, Barthelet is credited with the creation of the user based content for The Sims. He has also become famous for utilizing social media to effectively interact and engage with video game players. He has an engineering degree in Mechanics and Electricity from E.S.T.P in Paris.

A college dropout who taught himself programming at 9 years old, Sylvio went on to work around the world on large-scale projects (Philips Advanced Research Labs, Eicon Technology, France Telecom, Toyota, Fujitsu, Matsushita, Epson) as well as startup companies (MAZ Laboratory, Visiocom, Stage3Media, Tiny Pictures). He is specifically responsible for executive decisions, vision/innovations, consumer apps design/development, core technology concepts and architectures.

Formerly CTO and Chief Architect of a satellite television operation in Malaysia, Sylvio started MAZ Laboratories with $5m in Japanese and Canadian investment. Over the course of 2 years, MAZ, in direct collaboration with Matsushita, created a sophisticated 3D visualization system for complex AI systems and was one of the first to merge both content and its logic into a single user interface.

Until recently, Sylvio was CTO/VP Products at Xtranormal where he transformed the company into one of the most successful 3D storytelling outlets on the internet; delivering 25 different products in less than 12 months (Toyota, NYTimes, YouTube, Samsung), which in turn attracted 5 millions users and 15 millions movie created as well as generating 500 millions views across the web. Xtranormal won the DEMO 08 Award, 2011 Tribeca Disrupt Award and the Fast Company top 10 video companies for 2011.

Sylvio was also CTO of Tiny Pictures (mobile photo sharing) in charge of building consumer facing infrastructure supporting millions of users. Tiny Pictures won the People’s Voice award as part of the 12th Annual Webby Awards 2008 and the 2008 CNET ’Webware 100’ Award, Mobile Category. He is the original founder and architect of the SEEKS social search engine and created one of the first high definition video playback system on the internet for the Sanctuary sci-fi series.

Ed Fries created his first video games for the Atari 800 in the early 1980s. He joined Microsoft in 1986, and spent the next ten years as one of the founding developers of both Excel and Word. He left the Office team to pursue his passion for interactive entertainment and created Microsoft Game Studios. Over the next eight years he grew the team from 50 people to over 1200, published more than 100 games including more than a dozen million+ sellers, co-founded the Xbox project, and made Microsoft one of the leaders in the interactive entertainment business.

In 2004, Ed retired from his Microsoft Vice President job to continue his work in the video game business as board member, advisor and consultant to a broad range of publishers, independent game developers, and media companies. In 2007, Ed launched his own startup, FigurePrints, an innovative company that uses 3D color printing technology to bring video game characters to life.

Luca co-founded Curious Hat in 2012 with Erwan Maigret. With over 26 years of experience in Computer Graphics and Animated Feature Film production, Luca Prasso brings to Curious Hat the technical and artistic knowledge required to lead the design and development of innovative products.

Over 17 years, Luca was an integral part of the team that created award-winning films such as ‘Shrek’, ‘Madagascar’, ‘Kung Fu Panda’, and ‘How to Train Your Dragon’. His technical expertise has led the development of many ingenious innovative technologies and new solutions successfully used in the production of such movies. Luca Prasso is the co-owner of a patent on crowd rendering techniques.

Before joining DreamWorks Animation, Luca worked for Softimage, a company leader in 3D animation software.

As a passionate proponent for making videogame development simpler and less expensive, Mark has worked in technology leadership positions at Sony, Nintendo and Ubisoft, as well as editor-in-chief of Game Developer magazine. Mark recently coordinated game strategy and outreach efforts as a developer advocate for the videogame industry at Google.

He is the creator of the Game Programming Gems series of books. Mark currently sits on the boards of directors for the International Game Developers Association and game charity OneBigGame. He holds a B.S. in Computer Science from the University of Washington.

Jim Levy, Chairman of Park Lane Ventures, is a successful entrepreneur who currently serves as a strategic advisor to early-stage companies. He was the founding Chairman and Chief Executive of Activision (now Activision Blizzard), the world’s leading video game company, and The Park Lane Group, a leader in the consolidation of small market radio stations. His career includes experience in the packaged goods, publishing, direct marketing, recorded music and Internet services industries.

Levy spent a number of years working with venture capital organizations in Singapore, China, Europe and Silicon Valley. He serves on the Business Board of Advisors of the Tepper School of Business at Carnegie-Mellon University and works with non-profit organizations in Sonoma, CA, where he currently resides.