Board Members

The board of the Open Source Hardware Association currently consists of Michael Weinberg (President), Jeffrey Warren, Toni Klopfenstein, Rose Swan Meacham, Katherine Scott, Jeffrey Warren, Michael Knowles, Joel Murphy, Dan Grigsby, and Addie Wagenknecht.


Michael Weinberg, President

Michael Michael Weinberg is a Vice President at Public Knowledge, a nonprofit digital advocacy group in Washington, DC. As part of that advocacy, Public Knowledge has pushed to introduce the concept of open source hardware to policymakers and Members of Congress. Michael oversees PK Thinks, Public Knowledge’s in-house thinktank and is involved in a wide range of issues focusing primarily on copyright, issues before the FCC, and emerging technologies such as 3D printing and open source hardware.


Jeffrey Warren

jeff-photoThe creator of and co-founder and Research Director for the Public Laboratory for Open Technology and Science, Jeffrey Warren designs mapping and civic science tools and professionally flies balloons and kites. Notable software he has created include the vector-mapping framework Cartagen and orthorectification tool MapKnitter, as well as open spectral database and toolkit Spectral Workbench.

He is a fellow at MIT’s Center for Civic Media, on the board of the Open Source Hardware Association, on the advisory board of Personal Democracy Media’s WeGov and an advocate of open source software, hardware, and data. He co-founded Vestal Design, a graphic/interaction design firm in 2004, and directed the Cut&Paste Labs project, a year-long series of workshops on opensource tools and web design in 2006-7 with Lima designer Diego Rotalde.

Jeff holds an MS from MIT and a BA in Architecture from Yale University, and spent much of that time working with artist/technologist Natalie Jeremijenko, building robotic dogs and stuff. To find out more, visit

Photo Credit: Christina Xu


Toni Klopfenstein

ToniToni is currently a quality assurance engineer for SparkFun Electronics. She has been working to share and improve open-source electronics and science projects with the community both as a technical support representative at SparkFun, and as a K-12 outreach coordinator for the Women in Engineering program at CU-Boulder. With a strong background in open-source software from the CU-Boulder Applied Mathematics program and her extensive hardware experience at Sparkfun, Toni is passionate about growing and strengthening the open-source movement on all fronts.


Rose Swan Meacham

RoseRose is a creative technologist and neuroscientist, specializing in visual art and interactive design. She is interested in visual perception and studies the causes of attention selection to develop computational models for human gaze behavior in complex environments and tasks. Her research uses high speed cameras and computer vision to create non-invasive measures, all of which are open source online. A strong supporter of Citizen Science and Open Access, she helped researchers at CERN, NYU, Columbia, and Princeton share their research through crowdsourcing.

She has a Bachelor’s in Psychology and Photography from Bard College, and a Master’s from NYU Tisch in the Interactive Telecommunication Program. She is currently a Research Assistant at the Center for Neural Science at New York University and is conducting a new experiment on narrative at Princeton University.


Katherine Scott

kat9 Katherine Scott is a founder and the lead software developer at Tempo Automation. Tempo is building the electronics factory of the future in San Francisco. At Tempo the factory’s front door is the customer’s Electronics Design Automation (EDA) software, where the Tempo Plugin provides real-time Design for Manufacture (DFM) feedback and cost quoting. When the design is ready Tempo’s automated factory spins up, fabricates the design, and delivers it to the customer in as little as three days. Prior to Tempo Automation Katherine was a co-founder at Sight Machine and worked at Essess and a small mom-and-pop defense contractor. Katherine holds an MS in CS at Columbia University and Electrical Engineering and Computer Engineering from the University of Michigan.


Dan Grigsby

dangrigsbyDan joined the OSHWA board to work on policy and business objectives, specifically Joshua Pearce’s open hardware as new standard in science and Tom Igoe’s open hardware to the mainstream ideas. Dan’s policy experience includes work against SOPA/PIPA, for patent reform, and for net neutrality. Before becoming involved in Open Hardware, Dan spent two decades building businesses on, and giving back to, Open Source Software.




Michael Knowles








Addie Wagenknecht, Co-Chair, Open Hardware Summit (2013-2015)

5620357014_2a8dc608bf_zAddie Wagenknecht completed a Masters at New York University as a Wasserman Scholar and shortly after held fellowships at Eyebeam Atelier, CultureLab UK and more recently at HyperWerk Institute for Post-Industrial Design as well as Carnegie Mellon University STUDIO for Creative Inquiry. She is currently a Mozilla Open(art) Fellow, an artist at Free Art and Technology Lab a.k.a. F.A.T. Lab as well as co-founder of NORTD labs who created the open source lasercutter Lasersaur. Addie is a professor in robotics and open source computation at the institut für experimentelle architektur hochbau at the University of Innsbruck, Austria. Wagenknecht’s research, collaborations and projects are documented in a number of academic papers, books and magazines such as the Economist, Forbes, Popular Mechanics, MIT Technology Review, Gizmodo, Slashdot, Engadget, Heise, ARTnews and Der Standard.


Honorary Board Members

Danese Cooper

photo (1)Danese has a long history of advocacy for open-source, earning her the nickname “Open Source Diva”. She is a Board Member at Drupal Association, an Open Source Strategist (consulting) at Bill & Melinda Gates Foundation, an Emeritus Board Member / Observer at Open Source Initiative (OSI), and a Member at The Apache Software Foundation. Previously, she was Chief Technical Officer of the Wikimedia Foundation and, for six years, an open source advocate at Sun Microsystems.

Nathan Seidle

nate-sNathan is the CEO of SparkFun Inc. in Boulder, Colorado, a company he founded in 2003 as an undergraduate student in electrical engineering. His vision for SparkFun was a website that showed multiple views of each product, linked to the datasheet, and contained tutorials on everything they sell. The company has grown to over 130 employees in the past 9 years and is one of the leaders in Open Source Hardware. In addition to the parts company, Nathan also invented a system for printing small runs of circuits boards efficiently with BatchPCB, a sister company within SparkFun. At heart, Nathan is an electrical engineer and continues to build, hack, and design many of the companies’ products.

Wendy Seltzer

wseltzer-smWendy is a Fellow with Yale Law School’s Information Society Project, previously a fellow with Princeton University’s Center for Information Technology Policy; the Silicon Flatirons Center for Law, Technology, and Entrepreneurship at the University of Colorado; and with the Berkman Center for Internet & Society at Harvard Law School. She was a Visiting Fellow with the Oxford Internet Institute, teaching a joint course with the Said Business School, Media Strategies for a Networked World. She has previously taught at American University’s Washington College of Law, Brooklyn Law School, and Northeastern University School of Law, and served as staff attorney with the Electronic Frontier Foundation. Before joining EFF, she taught Internet Law as an adjunct professor at St. John’s University School of Law, and practiced intellectual property and technology litigation at Kramer Levin in New York.

David Mellis

davidDavid is a graduate student in the High-Low Tech group at the MIT Media Lab and co-founder of the Arduino project. Before coming to MIT, he earned a master’s at the Interaction Design Institute Ivrea and taught at the Copenhagen Institute of Interaction Design.