The Hound Labs Team

Pioneering leadership team with an unyielding passion for excellence

The Team

Steve Lewis


Steve’s career spans more than three decades, throughout which he’s built multiple industry-leading companies. Prior to joining Hound Labs, he led the rebuilding of Dataprise into the partner of choice among strategic mid-market IT buyers. As CEO of All Covered, he grew the company from a single office into the nation’s largest outsourced IT provider for small businesses.

Steve has founded and co-founded several companies, including Teneros, Pharmanex, and Generation Ventures. His early career includes a decade at Booz Allen Hamilton, where he consulted with Global 1000 executives, enabling them to gain competitive advantages through manufacturing, operations, and technology.

Steve holds undergraduate, Master of Science Engineering, and Master of Business Administration degrees from Stanford University.

Debkishore Mitra, Ph.D.

Chief Technology Officer

Debkishore excels at the commercialization of tools and technologies involving the advancement of microfluidic and bioengineering platforms. He has an extensive background in product development, infectious disease biology, and assay development. Debkishore completed his Ph.D. in bioengineering at the University of California, Berkeley and the University of California, San Francisco.

Don Boian

Chief Information Security Officer

Don is an information security leader with more than 34 years of experience. He worked at the National Security Agency for 30 years on defensive and offensive cyber operations and most recently was Chief Information Security Officer and Security Outreach Director for a large regional bank.

Linda Molyneux

Chief Human Resources Officer

Linda has broad experience in human resources and people operations. In her various leadership roles, she has been integral in forming and maintaining cultures of transparency, respect, safety, and growth. Most recently, she led the Human Resources Department at Lucira Health.

Sammie Dabbs


Sammie spent a decade working with Fortune® 500 clients helping them build solutions within their employment screening programs. Prior to joining Hound Labs, Sammie held sales and operations leadership positions at AWSI, a DISA Company.

Sergey Sherman


Sergey is a Managing Director of an investment firm Tuatara Capital, LP and is a seasoned former investment banker and M&A professional at several US and European firms. Before his career in banking and finance he was a nuclear submarine officer in the U.S. Navy. Sergey is currently a board member of several public and private companies.

Tamanna Prashar


Tamanna is an accomplished healthcare executive with experience in driving operational scale, achieving supply chain efficiencies, and process improvements in complex global corporations. She has been instrumental in building and growing multiple business functions across supply chain, manufacturing, quality, distribution, and customer service.

Aaron Atkinson


Aaron brings more than 15 years of product and content marketing experience to Hound Labs. Prior to joining Hound Labs, he was Vice President of Medical Marketing at Vyne, and spent 12 years in marketing and data analytics roles at Quest Diagnostics.

Rebecca Roberts

Senior Vice President of Employer + Partner Solutions

Rebecca has more than 18 years of experience in the employment screening industry, focusing primarily on occupational health and substance abuse testing. She has a Bachelor of Science in information systems management and has held leadership roles in customer onboarding and implementation, business development and sales support, and product management.

Rob Duck

Senior Vice President of Technical Operations, Manufacturing

Rob has a background in high-volume manufacturing, product development, and program management in a wide variety of industries. His expertise includes developing efficient operations and processes to bring products to market.

Bob Capwell

Vice President of Risk + Compliance

Bob brings more than 32 years of experience in the background screening and drug testing industries where his expertise centers around organizational risk management. His vast experience includes the development and administration of ISO quality and information security compliance and overall organizational process improvement. 

Jaime Feinberg

Vice President of Partnerships for Insurance, Risk, and Safety

Jaime brings a unique combination of experiences to Hound Labs, including a Master in Public Health. Most recently, Jaime was Vice President of Risk Control for Captive Resources. In addition, she helped to manage safety for Fortune® 500 companies.

Kurt Milne

Vice President of Digital Transformation

Kurt has more than 30 years of business-to-business marketing, industry analyst, and engineering experience. He has helped lead sales, marketing, and customer success teams at Fortune® 500 companies.

Scientific Advisory Board

Dan Fletcher, Ph.D.


Dan holds the Purnendu Chatterjee Chair in Engineering Biological Systems, Department of Bioengineering, University of California, Berkeley, and is a faculty scientist at the Lawrence Berkeley National Laboratory. Some of his recent awards include the 2010 Bioengineering Teaching Award, Outstanding Instructor, Bioengineering Honor Society, University of California, Berkeley; the 2010 Tech Award Laureate, Museum of Technology and Innovation, San Jose, CA; the 2009 Bill and Melinda Gates Foundation Grand Challenges Exploration Grant; and the 2009 Intel Inspire Empower Challenge for Healthcare. He also held a White House Fellowship in Washington, D.C. from 2008 to 2009. Dan attended graduate school at Oxford and Stanford Universities and was a Rhodes Scholar.

David Cornfield, M.D.


A physician and scientist, David is actively engaged in clinical medicine, teaching, and research. In the clinical arena, he is a pediatrician with an active practice in both pediatric pulmonary medicine and pediatric critical care medicine. In the research arena, his lab addresses several large thematic issues. Areas of concentration include regulation of pulmonary vascular tone, oxygen sensing in the lung, biological determinants of preterm labor focusing on myometrial smooth muscle cells, developmental regulation of barrier function in the lung, and the role of hypoxia-inducible factor-1 in lung development.

Joe Heanue, Ph.D.


Joe has significant leadership experience in device and instrumentation research and development in interdisciplinary environments. He holds patents for detector and image processing and spectroscopy, and a patent for medical system imaging architecture that is licensed to a major medical equipment manufacturer. Joe received a Bachelor of Science in physics from the Massachusetts Institute of Technology and earned his doctoral degree in electrical engineering and computer science from the University of California, Berkeley. He was a postdoctoral researcher at Xerox PARC, and he has completed the Stanford University Executive Program for Growing Companies.

Barry Sample, Ph.D.


Barry is a renowned consultant in forensic and analytical toxicology, anti-doping, and workforce drug testing with more than 40 years of experience in leading science and technology initiatives. A former Senior Director of Science and Technology for Quest Diagnostics where he was responsible for the production and introduction of new products and services, Barry currently serves as the Senior Science Consultant for Quest’s Employer Solutions division. He received his bachelor’s degree in chemistry and his doctorate in pharmacology from Indiana University and is a board-certified forensic toxicologist. 

Marilyn Huestis, AB, MS, Ph.D.


Marilyn was the former Chief of Chemistry and Drug Metabolism at the National Institutes of Health’s National Institute on Drug Abuse (NIDA) Intramural Research Program (IRP) where she conducted controlled drug administration studies. Marilyn served on the National Commission on Forensic Sciences, was president of the Society of Forensic Toxicologists, Chair of the Toxicology Section of the American Academy of Forensic Sciences, and president of The International Association of Forensic Toxicologists. Marilyn received her bachelor’s degree in biochemistry from Mount Holyoke College, a master's in clinical chemistry with honors from the University of New Mexico, and a Ph.D. in Toxicology with honors from the University of Maryland School of Medicine.

Board of Directors

Mike Lynn, M.D.

Chairman of the board

A practicing emergency medicine physician and teacher at a premier trauma center in Oakland, CA, Mike is also a clinical faculty member at the University of California, San Francisco. In addition to being an ER physician, he worked for 10 years as a venture capitalist specializing in medical devices and biotechnology. In this capacity, he invested widely in emerging life science companies and served on multiple boards of directors. A former White House Fellow and Fulbright Scholar with an extensive background in public policy and public health, Mike is currently a reserve deputy sheriff and a fully qualified and active SWAT team member.

Bill McComb


Bill began his career with Johnson & Johnson in 1992 and served leadership positions in consumer, pharmaceutical, and medical device businesses. In July 2001, he was named president of McNeil Consumer Healthcare, and in July 2004 assumed additional responsibilities as president of Ortho Women’s Health & Urology. In his final role at J&J, Bill was Company Group Chairman, responsible for their $6B Global Orthopedic and Neurological medical device businesses, where he was a member of the Medical Devices & Diagnostics Group Operating Committee.

Bill received an undergraduate degree from Miami University and a Master of Business Administration from the University of Chicago Booth School of Business.

Dick Wolf


Dick, a multiple Emmy and Grammy-winning producer, is the architect of the most successful brand in the history of television: “Law & Order.” As the Creator and Executive Producer of all the “Law & Order” branded series, he is one of television’s most iconic producers. His company has also produced the Emmy-winning HBO telefilm “Bury My Heart at Wounded Knee”; the Oscar-winning short documentary “Twin Towers”; the Grammy-winning Doors documentary “When You’re Strange”; and numerous hit series for NBC. In addition, through the Wolf Family Foundation, he has been a major benefactor to the Wolf Museum of Exploration and Innovation (MOXI) in Santa Barbara; the Carsey-Wolf Center at the University of California, Santa Barbara; the Princess Grace Foundation; the Paley Center for Media; and the TV Academy.

Mitch Lasky

general partner, benchmark

Mitch is a general partner at Benchmark. He has led Benchmark's investments in, and holds board seats with, Snapchat, Cyanogen, Discord (Hammer & Chisel), EngineYard, Thatgamecompany, Meteor Entertainment, Red Robot Labs, PlayFab, and Learnist (formerly Grockit). Prior to their exits, he also held board seats with NaturalMotion Games (Zynga), Gaikai (Sony), Outpost Games, and Riot Games (Tencent). Mitch has spent more than two decades in the mobile gaming, new media, and interactive entertainment business. Prior to joining Benchmark, he served as Executive Vice President of Mobile and Online at Electronic Arts. Previously, he was Chairman and Chief Executive Officer of JAMDAT Mobile, which he joined during its start-up phase in 2000, took public in 2004, and sold to EA in 2006.

Tom Mawhinney

general partner, icon ventures

Tom joined Icon Ventures in 2003 as a general partner, bringing a 15-year background in the technology industry as both a venture capitalist and an entrepreneur. He is currently on the board, or actively involved with,, Ionic Security, Opcity,, Synack, Teladoc (TDOC) and The Muse. Prior investments include 41st Parameter (Experian), AmeriPath (PATH), DATAllegro (Microsoft), Infinera (INFN), IntelliQuest (IQST), MarketLive (Vista Equity), Mednax (MD), Microbank Software (SunGuard Data Systems), PostPath (Cisco Systems), Powerwave (PWAV), Solidcore Systems (McAfee), Voltage Security (HP) and Yodle ( Before joining Icon, he was with Canaan Partners and Summit Partners in their Silicon Valley offices. As an entrepreneur, he co-founded and spent five years as

President and Chief Operating Officer of North Systems, a venture-backed software company. He received his Master of Business Administration from the Stanford Graduate School of Business and graduated with honors from Harvard College.

Dov Szapiro


Dov has more than 20 years of experience as a senior executive, private equity investor, advisor, and board member across multiple industries and growth phases. As the founder of an automobile credit company which he sold to a $1 billion conglomerate, Dov now uses his expertise to assist portfolio companies with strategy, operations, business development, as well as structure buyouts, acquisitions, mergers and IPOs. Prior to co-founding Entourage Effect Capital, he partnered with Andy Sturner to recapitalize MacArthur Capital, where he led the merger of Chemistry Holdings into Cure Pharmaceutical.

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