Working Together for Decades

The Merlin Team

The Merlin Digital Team has been working together for decades. Our clients are legal people; smart professionals working under tight, high-stakes deadlines. They labor under the need to get it right every time.

We love the challenge. We are used to solving difficult problems and aren’t afraid of the long hours that go with it. Indeed, that’s what gets us up in the morning. 


Meet the senior leadership team at Merlin Digital Magic. 

John Tredennick

Founder and CEO

John Tredennick spent the first twenty years of his professional life as a trial lawyer and partner at a national law firm. He then founded Catalyst Repository Systems, a leading e-discovery and AI software provider where he served as CEO and Chair for the next twenty years (the company was recently sold to a large public technology company).

 Not ready to retire at this young age, John formed Merlin Digital Magic, Inc. a secure cloud software development company that helps forward-thinking legal teams meet compliance obligations, review documents and automate complex work processes. 

John is a prolific speaker and writer. Over the past thirty years, he has written eight books and countless articles on legal technology topics, including “TAR for Smart People” (3rd Ed.),  two ABA bestsellers “Winning with Computers” (Vols. One and Two), “How to Prepare For, Take and Use a Deposition at Trial (James Publishing), and several editions of “The Lawyer’s Guide to Spreadsheets.” John’s is a past Chair of the ABA’s Law Practice Management Section, was Editor in Chief of its flagship magazine and is currently active with the Sedona Conference, acting as co-drafting team leader for the new Sedona Guidelines on Legal Hold and as a member of the drafting team for the International Legal Hold Primer. 

John’s legal and technology acumen has earned him numerous awards including being named by the American Lawyer as one of the top six “E-Discovery Trailblazers,” named to the FastCase 50 as a legal visionary and named one of the “Top 100 Global Technology Leaders” by London CityTech magazine. He has also been named the Ernst & Young Entrepreneur of the Year for Technology in the Rocky Mountain Region, and Top Technology Entrepreneur by the Colorado Software and Internet Association. 

Lew Visscher

Lew Visscher

Chief Financial Officer

Lewis Visscher has over 30 years of diversified business advisory, management, operational, financial and accounting experience. Lew was recently the CFO at Catalyst Repository Systems which was acquired by Open Text in early 2019. Prior to Catalyst Lew was CFO for various other early stage technology businesses providing financial leadership through many operational aspects, contract negotiations and mergers and acquisition strategies.

Before working for these private companies, Lew was with PricewaterhouseCoopers, where he worked with many private and public companies on equity offerings, start-ups, acquisitions, divestitures and multinational, multi-location operations.

Lew is most famously known in the Colorado community for Lew’s List (, a job resource board for finance and accounting professionals. Lew is also involved in Financial Executives International (FEI) in both Colorado and Arizona and was President of the Colorado chapter in 2015. Lew also the founder and an active member of the Colorado chapter of the New Canaan Society, a Christian men’s organization. In 2009, the Denver Business Journal named him CFO of the Year.

Development, QC and Engineering

We are a team of fifteen+ and growing quickly.

Since our founding in march-2019, the Merlin Engineering and Development team has grown to over a dozen senior development, QA  and operations engineers based in India and the U.S. Most of the team has been together for a decade or more building industry-leading search, review and compliance platforms. 

Currently our team is composed of the following:  Principal and Lead Architects (2); Tech Leads (3); Senior analysts (3); UX designers (2); Testing Engineers (2) and Support and Operations Engineers (2).


Download copies of CEO and Founder John Tredennick’s recent books:

And don’t miss the next edition of TAR Talk with John Tredennick and Thomas Gricks.

TAR for Smart People
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