About Proteus

Experienced eDiscovery Advocates

High-stakes case matter. Industry-leading clients.
A trusted partner for turbulent times.

What makes Proteus different.

Our founders and directors are practicing, litigating attorneys. Information Governance and eDiscovery are not abstract concepts because we see the material impacts in motions practice and the courtroom. Our team’s experience cuts across business, IT, and legal functions in multiple industries, and our platform-agnostic approach means we meet you where you are - we don’t try to fit you into our model.

ediscovery vendors

Our Leadership

ray biederman

Ray Biederman

Chief Executive Officer, Co-Founder
Ray has worked in every phase of electronic discovery for over 15 years. He is a Super Lawyer in the area of eDiscovery, has been cited in multiple court opinions as an expert witness, and is adjunct faculty for eDiscovery at the IUPUI School of Informatics and Computing. He consults on Information Governance policies and procedures related to cybersecurity and its intersection with government regulation and industry-specific best practices. Outside of his eDiscovery experience, Ray is an active litigator representing clients in product liability work, business valuation disputes, and contract disputes. He is also a founding partner in Mattingly Burke Cohen & Biederman and Co-Founder and CEO of DiscoveryMaster, a software platform for eDiscovery reporting. He was previously an associate at Barnes & Thornburg, LLP.
B.M., Music Education, Butler University, 2006
J.D., Indiana University Robert H. McKinney School of Law, 2009
Hamish Cohen

Hamish Cohen

General Counsel, Co-Founder
Hamish’s practice focuses on client counseling and litigation in a wide range of business and personal contexts. His experience includes antitrust, securities litigation, class actions, and other large, complex commercial litigation. This has given him a sophisticated blend of cutting-edge tools and technology with trusted methods of legal analysis and trial process.
Hamish represents and advises start-up businesses, Fortune 100 companies, sports organizations, individuals, and local, regional, and national business entities in matters that include corporate governance, litigation, dispute, risk avoidance, and business circumstances. He has handled disputes from pre-litigation negotiation, through trial and the appeal from both the plaintiff and defense perspective. Hamish is also a founding partner in Mattingly Burke Cohen & Biederman and DiscoveryMaster, a software platform for eDiscovery reporting. He was previously a partner at Barnes & Thornburg, LLP.
B.A., English Literature, Indiana University, 1994
J.D., Indiana University Mauer School of Law, 2001
Jon Mattingly

Jon Mattingly

Director, Co-Founder
Jon’s practice focuses on civil litigation with an emphasis on representing clients in matters involving product liability and toxic torts, construction litigation, and a variety of complex commercial issues, including lender disputes, mortgage fraud, and contract disputes.
He regularly defends manufacturers, premises owners, and contractors in complex multiparty toxic exposure lawsuits involving personal injury, wrongful death, and property damage. In this practice, Jon has represented manufacturers from industries including pharmaceutical, industrial and residential construction materials, and of chemicals and pesticide products. He has defended matters involving an assortment of chemicals/particulates such as asbestos, thimerosal, silica, and other allegedly toxic materials. Jon has also represented several national, regional, and local banks, financial institutions, and other types of businesses in commercial disputes. He has particular experience representing entities involved in the mortgage lending industry and has investigated and litigated matters involving nearly every type of entity up and down the mortgage lending chain, from originating lenders to warehouse lenders to investors in the secondary market. He assisted clients in obtaining significant recoveries against borrowers, mortgage brokers, appraisers, title companies and others. Jon is also a partner in Mattingly Burke Cohen & Biederman and DiscoveryMaster, a software platform for eDiscovery reporting. He was previously a partner at Barnes & Thornburg, LLP.
B.S., Pre-Professional Studies, University of Notre Dame, 1995
J.D., Indiana University Robert H. McKinney School of Law, 1998
Sean Burke

Sean Burke

Director, Co-Founder
Sean handles a wide array of complex commercial matters from pre-suit negotiation, the pleading and discovery stage, through judgment and any appellate process.
His experience includes representing international medical products manufacturers in multi-million dollar product liability suits; significant commercial clients in complex disputes involving allegations of fraud, breach of contract, theft of trade secrets, and product failures; individuals and businesses in multi-million dollar insurance coverage disputes; and property owners in environmental contamination matters. Sean has litigated putative class action claims brought against national credit card providers, international oil companies, and international manufacturers; complex, high-profile construction disputes; significant personal injury claims; and alleged violations of non-compete agreements. Sean also has an active practice leading companies through internal investigations and responses to governmental inquiries, including responding to, negotiating with, and litigating against the CFPB. His experience extends beyond litigation through his practice acting as outside general counsel and business advisor to companies in all stages of their life cycle.

Sean is also a partner in Mattingly Burke Cohen & Biederman, and DiscoveryMaster, a software platform for eDiscovery reporting. He was previously an associate at the Chicago office of Sidley Austin, LLP and a partner at the Indianapolis office of Barnes & Thornburg, LLP.
B.S., Marketing, Kelley School of Business, Indiana University, 1992
J.D., University of Illinois College of Law, 2002
ediscovery vendors

Management Team

Ryan Rieff

Ryan Rieff

Director of Technology Services
Ryan focuses on managed document review and complex database projects. Prior to joining Proteus, he worked as a document review attorney, becoming proficient in platforms including Relativity, Viewpoint, and Nuix. Ryan has been a part of first pass, quality control, and privilege review teams.
His practice centers around guiding clients and reviewers through large-scale document productions. Ryan utilizes technology assisted review, targeted searches, and project reports to maximize efficiency and value in every matter, including for multiple Fortune-listed clients.
B.A., History, Indiana University, 2007
J.D., Indiana University Robert H. McKinney School of Law, 2015
Relativity Certified User (RCU)
RelativityOne Certified Pro (ROCP)
Relativity Certified Administrator (RCA)
Anthony Cozzi

Anthony Cozzi

Senior Project Manager
For more than twenty years, Anthony has led Information Technology departments and consulted with organizations in the areas of data management, security, and infrastructure design. Recognizing the need for companies to better understand the intersection of technology and the law, he obtained a law degree. Anthony combines his IT and legal backgrounds and works with clients to refine their data management processes, protect against internal and external threats, and manage eDiscovery requests and projects.
J.D., Valparaiso University School of Law, 2016
Certified eDiscovery Specialist (CEDS)
Relativity Certified User (RCU)
RelativityOne Certified Professional (ROCP)
Cellebrite Analytics
Scott Collins

Scott Collins

Senior Project Manager
Scott has honed his eDiscovery skills while managing projects at Proteus since 2015. Prior to joining the team, he was a document review attorney with Black Letter Discovery, and a staff attorney in Barnes & Thornburg LLP’s litigation department from 2012 to 2014. Scott has also worked as a law clerk and associate attorney for other Indianapolis-area firms practicing in the areas of personal injury, criminal defense, family law, and property law.
Scott’s practice involves regular management and delivery of eDiscovery and Information Governance services to a wide variety of local, regional, and national clients. He enjoys serving as an intermediary between clients, outside counsel, eDiscovery vendors, and document review teams. For over five years, Scott has engaged in various high-profile document review projects, including as a first line reviewer, a QC reviewer, a team leader, and a project manager. He has worked on projects ranging from medical device litigation for a Fortune 100 subsidiary to contract litigation for a multinational chemical corporation.
B.A., Mass Communications and History, Anderson University, 1999
J.D., Indiana University Robert H. McKinney School of Law, 2010
RelativityOne Certified Pro (ROCP)
Vanessa Woolsey

Vanessa Woolsey

Project Manager
Vanessa has focused her career on helping businesses navigate in the legal environment. As a project manager, she actively listens to clients’ needs and goals, evaluates the scope of each project, and constructs the best workflow and reporting to successfully complete projects in a timely and cost-effective manner. Vanessa has assisted clients from a wide range of industries and of varying sizes as a first pass reviewer, detailed privilege reviewer, quality control reviewer, team lead, and project manager.
Prior to joining Proteus, Vanessa served as in-house Corporate Counsel for a multimillion-dollar company. She also worked as an attorney with the Tax Litigation section for the Indiana Attorney General and has represented clients in various immigration hearings.
B.S., Legal Studies and International Studies, Kelley School of Business, Indiana University, 2009
J.D., Corporate and Commercial Law Certificate, International and Comparative Law Certificate, Indiana University Robert H. McKinney School of Law, 2014
Certified eDiscovery Specialist (CEDS)

Ryan Short

Ryan Short

Vice President, Marketing
Ryan leads sales and marketing efforts for Proteus Discovery Group. Prior to joining Proteus, Ryan was a business development leader at Echo Global Logistics, Celadon Logistics, and Probo Medical, operating at the intersection of sales, marketing, operations, and finance. The bulk of Ryan’s experience is with scoping, deploying, and implementing technology-enabled services, making eDiscovery a natural fit. Ryan is also the editor of the Proteus Discovery Group blog, and leads sales and marketing efforts for DiscoveryMaster, a software platform for eDiscovery reporting.
B.A., Telecommunications, Indiana University, 2011
M.B.A., Kelley School of Business, Indiana University, 2020
Relativity Certified Sales Professional (RCSP)

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