Executive Team

Two Six Labs leads the way in advanced technology solutions. Our Executive Team leads and supports the outstanding Two Six Labs teams comprised of some of the leading minds in their fields and includes experts in data science, cybersecurity, R&D and more. Meet our Executive Team and learn more about their unique backgrounds.

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Meet the Team

Chris Greamo

President & CEO

Chris Greamo is President and CEO of Two Six Labs. Prior to his current role, he was Executive Vice President and General Manager of Invincea Labs, where he led its growth as a premiere advanced technology research and development organization supporting DoD, Intelligence agencies and homeland security programs.

Chris has over 30 years of experience leading research and development teams, including at BAE Systems, Alphatech, Manugistics and TASC. He earned a Bachelor of Science degree in Electrical Engineering from Carnegie Mellon University and a Master’s of Science degree in Electrical Engineering from MIT.

Jeff Gregory

Chief Financial Officer

Jeff Gregory is Chief Financial Officer at Two Six Labs, where he is responsible for corporate finance, accounting, compliance, and treasury management. He also serves as the Corporate Secretary. Jeff has over ten years of financial leadership experience creating, growing and leading finance teams in both service-based Government/Defense contractors and Commercial product technology companies. Prior to his current role at Two Six Labs, Jeff was Director of Finance and Accounting at Invincea Labs where he was responsible for all aspects of finance and accounting.

Jeff has extensive experience in financial management, corporate consolidations, reorganization and integrations of financial systems and operations. Jeff earned a Bachelor of Science degree in Business Administration and Economics from Greensboro College.

Jeff Karrels

Vice President, Cyber and Electronic Systems

Jeff Karrels is Vice President of Two Six Labs’ Cyber and Electronic Systems group. He is responsible for the management and growth of US Government programs related to cybersecurity technologies, command & control platforms and artificial intelligence/machine learning applications for the cyber battlespace. Jeff has over 17 years of experience with advanced cyber warfare capabilities, unknown protocol discovery, reverse engineering and vulnerability research.

Prior to TwoSix Labs, Jeff worked as a Research Director for Invincea Labs, and at the Institute for Defense Analyses (IDA), a Federally Funded Research and Development Center (FFRDC), and BAE Systems. Mr. Karrels holds a bachelor’s degree in Computer Science from the University of Wisconsin – Milwaukee and a Master’s degree in Computer Science with a concentration on trusted processing within contested and untrusted environments from The George Washington University.

Michael Lack

Senior Vice President, Research & Development

Michael Lack is the Senior Vice President of Research and Development at Two Six Labs, where he is responsible for the performance and growth of the Company’s portfolio of cyber security, data analytics and mobile security research projects. Prior to his current role, Mr. Lack was the Senior Research Director and Deputy General Manager of Invincea Labs. Mr. Lack has nearly 20 years of experience building and leading high performing teams working on cutting edge technology research and development.

Prior to Invincea Labs, Mr. Lack held senior research positions at several premier R&D organizations where he focused on next-generation cyber security and information assurance technologies. Mr. Lack holds a Master’s degree in Computer Science from the University of Virginia and a Bachelor of Science in Computer Science and Mathematics from the University of Richmond.

David Leach

Senior Vice President, Strategy & Corporate Development

David Leach is the Senior Vice President of Strategy & Corporate Development at Two Six Labs. In his role, David is responsible for developing Two Six Labs’ growth strategy and implementing plans to capitalize on the company’s valuable portfolio of unique capabilities, R&D projects, security products and technology solutions.

Prior to his current role, David was a Principal and head of private equity at the Chertoff Group and a Managing Director at Goldman Sachs. He received his B.A. from Tufts University and an MBA from The Tuck School of Business at Dartmouth.

Board of Directors

Mike Daniels

Chairman of the Board of Directors, Two Six Labs Read more

Chris Greamo

President & CEO, Two Six Labs

John Backus

PROOF.VC, Co-Founder, Managing Partner
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Steve Frederick

General Partner, Grotech Ventures
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Tom Roberts

General Partner, Harbert Growth Partners
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Mike Daniels is a globally recognized business entrepreneur, technology industry leader and investor.

Mike Daniels has been directly involved in creating over $50 Billion in shareholder returns in high growth technology companies over 35 years.

He is the former Chairman and CEO of Network Solutions, former Chairman and CEO of Mobile365, former Chairman of the Northern Virginia Technology Council (the largest technology council in the United States) and former Chairman of the Virginia Chamber of Commerce (the largest business advocacy organization in the State of Virginia).

As former Senior Vice President of Science Applications International Corporation (SAIC), he is one of the senior executives who built SAIC from 1986 to 2004 into one of the largest privately held, employee owned, science and technology services companies in the United States.

He is most well-known for finding and acquiring Network Solutions while at SAIC. He purchased Network Solutions for $4.7 Million in 1995, raised $3.2 Billion in the public markets from IPO in 1997 to 2000 in three offerings and then sold Network Solutions in 2000 for $19.3 Billion. This record still stands on Wall Street as one of the greatest returns on any investment in a 5 year period from purchase to sale and included one of the largest internet offerings of all time

He has served on 23 public, private and non-profit boards of directors often as Chairman of the board. He currently serves on the board of directors of Blackberry, CACI International, Mercury Systems and Two Six Labs as Chairman. Some of his notable past board service has included Acentia, Apogen, GlobalLogic (as Chairman), Invincea (as Chairman), Logistics Management Institute (as Chairman), Sybase, Telcordia Technologies and VeriSign.

In 2019 Mike was named by the National Association of Corporate Directors as one of the Top 100 Directors in America and also was inducted into the Greater Washington Business Hall of Fame.

Based in the national capital region, John is a seasoned technology investor and entrepreneur with over two decades of experience investing in and managing rapidly growing companies.

Before becoming a venture capitalist, he co-founded US Order, which revolutionized online banking, went public in 1995 and was sold to Visa.

John serves on the Board of Directors for the Center for Public Policy Innovation (CPPI) and the Colorectal Cancer Alliance. He served four years on the Board of Directors of the National Venture Capital Association (NVCA),is Chairman Emeritus of the Northern Virginia Technology Council (NVTC) Board of Directors, has served as a technology policy adviser to Virginia governors Gilmore, Warner and McDonnell and has contributed his views to The Washington Post, Tech Crunch, Fortune, VentureBeat and the Huffington Post. John began his career at Bain & Co. and Bain Capital, where he was the first management consultant to take a full time operating role in a portfolio company.

Steve Fredrick joined Grotech Ventures in 2005. He focuses on investments in software and services with a particular interest in security and big data. Steve currently works with Grotech portfolio companies Bandura, ChurnZero, Parsely, Promoboxx, RackTop Systems, Stardog, Two Six Labs, Urjanet, Voci, WhiteOps and WireWheel.

Steve’s career spans engineering, company building and early-stage investing. Prior to Grotech, he was a General Partner with Novak Biddle Venture Partners investing in early-stage software and communications equipment companies. Steve began his career in research and development with IBM and then joined a venture-funded software company in the document imaging space called Vantage Solutions, which was acquired in 1994. Steve subsequently co-founded software development firm MartinScott before moving to venture capital in 1997.

Steve earned his Bachelor of Science and Master of Science in Electrical Engineering, Magna Cum Laude, from Virginia Tech and was an Eastman Kodak Scholar. He taught for several years as an Adjunct Professor of Entrepreneurship at the University of Maryland’s Smith School of Business and sits on the College of Engineering Advisory Board at Virginia Tech. Steve serves on the board of the National Venture Capital Association and is the 2012 recipient of the Outstanding Service Award from the NVCA for his work on the StartUpHire initiative. He is a frequent speaker on entrepreneurship and venture investing.

Thomas D. Roberts III is a General Partner at Harbert Growth Partners. Mr. Roberts joined HMC in 2002 as a founding member of the HGP Investment Team. He currently serves on the boards of Cloud Elements, Iconixx, Ledbury, Mobile Posse, Sidecar Interactive, and Two Six Labs, and manages HGP’s investment in Clarabridge. He led HGP’s investments in and was a board member of Agility Healthcare (sold to GE Healthcare), JackBe (sold to Software AG) and Invincea (sold to Sophos). He also serves as a consultant to the Office of the Secretary of Defense’s Rapid Reaction Technology Office, helping the DoD to identify promising emerging commercial technologies for the government. He is a member of the Executive Committee of the board of the Mid-Atlantic Venture Association (“MAVA”).

Before joining HMC, Mr. Roberts was a senior investment banker for Wachovia (and predecessor firms First Union Securities and Wheat First Butcher Singer), where he originated and successfully executed over 40 public and private equity and M&A advisory transactions for clients in the technology, telecom and healthcare sectors. He was a founding member of First Union’s Technology Investment Banking Group. Prior to investment banking, he was with Markowitz & McNaughton, a strategy consulting firm, specializing in competitive analysis, market opportunity assessment, benchmarking and acquisition buy-side search and due diligence services for Fortune 500 clients.

He holds a Master of Business Administration degree and a Bachelor of Science degree from the University of Virginia.