Mark Britton
Mark Britton is the founder of Avvo and serves as an investor, advisor, and a seed investor; he is a member of the board of directors at Librari.
Madrona celebrates Impinj’s 10th IPO anniversary, remembering founders Carver Mead and Chris Diorio and their low-power transistor breakthrough
Impinj marked the 10th anniversary of its IPO, and Madrona celebrates its long partnership with the company dating back to its founding in 2000 by Carver Mead and Chris Diorio. The piece highlights Mead's influential contributions to semiconductor industry and neuromorphic computing and explains that Impinj originated from their work on low-power, low-cost field-tunable transistors.
Former Intellectual Ventures Leaders Back Tim Londergan’s Tangibly; Seattle Startup Raises $700,000 to Manage Trade Secrets
Tangibly, a Seattle startup led by former Intellectual Ventures exec Tim Londergan, launched to help companies manage enterprise trade secrets and raised $700,000 in a pre-seed round from several former Intellectual Ventures leaders and other tech executives.
Clearbrief Raises $3.5M Seed Round Led by Reign Ventures with Court Lorenzini, Jack Newton and Others
Clearbrief, a product that strengthens legal writing, has raised a total of $3.5 million in seed funding led by Reign Ventures and announced on August 30, 2021; new investors include Court Lorenzini, Jack Newton, Amy Weaver, Hadi Partovi and Lata Setty. The company previously attracted early backers such as Mark Britton, Bryan Garner and Bill Neukom.
Clearbrief raises $3.5M seed to scale AI that flags misrepresentations in litigation briefs
Clearbrief, a Seattle startup, raised a $3.5 million seed round led by Reign Ventures to expand its AI-powered tool that uses NLP to flag unsupported or misrepresented statements in litigation documents and surface underlying evidence. CEO Jacqueline Schafer says the software helps lawyers and judges quickly verify claims, improve strategy, and increase access to legal materials as courts move online and adopt new filing rules.
Jacqueline Schafer’s Clearbrief, founded last year, draws major VC and law-firm investment after founder’s courtroom breakthrough
Jacqueline Schafer founded Clearbrief last year and has already attracted investments from major venture capital and law firms; the company grew out of her experience winning a 2018 asylum case where a persuasive legal brief changed the judge’s view.
Clio raises $110M Series E led by T. Rowe Price, valued at $1.6B
Clio raised $110 million in a Series E round led by funds advised by T. Rowe Price, lifting its valuation to $1.6 billion; the Vancouver-based legal tech company serves thousands of law firms, employs 600+ people and plans to add 250 more this year.
Clearbrief Raises $1.2M Seed to Verify Citations and Strengthen Legal Briefs, Backed by Britton, Garner, and Neukom
Bob Ambrogi reports that Clearbrief, a new legal-tech product backed by $1.2 million in seed funding from investors including Mark Britton, Bryan Garner, and Bill Neukom, analyzes legal briefs to verify how well each sentence is supported by cited sources and automates citation formatting, hyperlinks, and online publication so judges and parties can view briefs alongside cited documents.
Clearbrief raises $1.2M from Sequoia, Madrona and Avvo founder to commercialize AI legal-writing tool
Seattle startup Clearbrief raised $1.2 million from investors including Sequoia Capital, Madrona Venture Group and Avvo founder Mark Britton to commercialize AI-powered legal writing software that checks sentences against supporting evidence and integrates with Microsoft Word and the cloud.
Organizations
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Librari Seed Investor; Member, Board of Directors 2026–present · current
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Clearbrief Seed Investor, Advisor 2020–present · current
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Clio - Cloud-Based Legal Technology Investor; Member, Board Of Directors 2019–present · current
Education
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The George Washington University Law School Juris Doctorate, LAW · 1989–1992
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Gonzaga University BBA, Finance, Economics · 1985–1989
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Gonzaga University Gonzaga-in-Florence Program · 1987–1988
