D4, LLC is a national leader in providing litigation support, computer forensics and eDiscovery services to law firms and corporate law departments. D4 covers the spectrum of the Electronic Discovery Reference Model (EDRM), from identification and preservation of data through forensic and targeted onsite data collection; from data analytics and defensible search methodology through hosted review and production services. D4 assists attorneys in litigation response planning, strategies for negotiation of scope and meet-and-confer, computer forensics, expert testimony, and approaches to cost reduction in litigation support projects and in corporate law department operations. Founded in 1997 , D4 has grown to a national presence. With nearly 130 staff, D4 offers full-service locations in Buffalo, Detroit, Grand Rapids, Lincoln, New York City, Omaha, Orlando, Phoenix, Rochester, San Francisco, San Diego and Tampa. D4 fields consultants and project managers from Los Angeles, Colorado, Rhode Island, Michigan, and Washington DC. State-of-the-art tier-3 data center operations in Rochester are complemented by electronic discovery and litigation support paper document services throughout the United States. D4 has been recognized by Inc. Magazine as one of the fastest growing private companies in the US and is a two-time INC 500/5000 honoree. In 2010 and 2011, D4 was recognized on the “Rochester Top 100” list, honoring the fastest growing companies in Western New York. 
Show more

Employee Rating

HQRochester, US
Size (employees)247 (est)
D4 was founded in 1997 and is headquartered in Rochester, US
Report incorrect company information

Viewing summary data as a guest

Sign up for free to see all data

Key People/Management at D4

Laurie Chamberlin

Laurie Chamberlin

President, Special Counsel
John Rubens

John Rubens

John Evans

John Evans

Senior Vice President, Forensic Services Group
Kevin Angus

Kevin Angus

Vice President, Operations and Client Services
Joseph Reges

Joseph Reges

Vice President, Discovery Services
Heather Bigger

Heather Bigger

Vice President of Human Resources
Show more

D4 Office Locations

D4 has an office in Rochester
Rochester, US (HQ)
222 Andrews St
Show all (1)
Report incorrect company information

D4 Financials and Metrics

Summary Metrics

Founding Date

Report incorrect company information

D4 Online and Social Media Presence

Embed Graph
Report incorrect company information

D4 News and Updates

Neato's Botvac D4 Connected Is Our New Midrange Fave

Neato's new midrange offering gives Roomba a run for its money.

Neato unveils Botvac D4 Connected and Botvac D6 Connected robot vacuums

Robotic vacuum company Neato unveiled a host of new products at its IFA 2018 briefing, including two new models with improved runtime.

Volvo XC40 Is Boxy and Comfortable, Says First Review

Right from the beginning, you can tell that Matt Prior is slightly fed up with reviewing SUVs. After all, he jumped out of the Jaguar E-Pace and into the Volvo XC40. But how does the all-new compact from Sweden compare to its rivals? 84 photos The XC40 will go up against not only the Jag, […] The po…

Ediscovery news: D4 is First Relativity Partner to Offer RelativityOne in the UK

D4 LLC, a leading international provider of managed data and discovery services, today announced that they are the first RelativityOne Certified Partner to offer RelativityOne in the United Kingdom. The RelativityOne Certified Partner program recognizes […]

New XC40 completes global Volvo line-up for fast-growing premium SUV segment

Volvo Cars, the premium car maker, today further expands its line-up of SUVs with the launch of its new XC40 small premium SUV in Milan, Italy. At the same time as it introduces the XC40, Volvo Cars also reinvents the traditional model of car ownership with its new ‘Care by Volvo’ subscription servi…
Report incorrect company information

D4 Blogs

Simple Guide on How to Transfer Data Correctly

Have you ever struggled with issues as a result of ESI being transmitted in a way that causes problems such as spoliation of the metadata or the data is corrupted in some way or just the way it was sent caused issues for processing?  Metadata can be used to prove the authenticity of ESI - learn ho…

How to Document Your Chain of Custody and Why It's Important

The collection process is the crux of any investigation, and the most important step in any collection is documentation. Proper documentation and the ability to validate the findings are essential when a matter goes to trial, especially when the duration of a case lasts for months or years. Evidence…

7 Tips for Better Law Firm Security

Corporations allocate significant time and money for protecting their digital intellectual property. If you have ever met an information security professional, you know that they take their jobs seriously.  Security is the reason the typical end user has to call IT every time they want to install…

Creating Strategic eDiscovery Workflows for Small Teams

When leveraged in a Managed Review, the power of defensible, highly prioritized reviews can be adapted to the needs of each case.The need to create and implement time and cost effective discovery-related workflows is not limited to just large firms, or for large discovery projects. Too many times, s…

How to Reduce Your Threat of Cyber Attacks in Wake of China Hack Allegations

With all the news coming out of Washington last week as part of the confirmation process for Supreme Court Justice nominee Brett Kavanaugh, and the disclosure by Facebook of a breach that affected at least 50 million users, it would be easy to miss the equally significant story about the latest vari…

X1 Insight and Collection & RelativityOne Integration: Testing and Proof of Concept

eDiscovery is a complicated business. For a typical litigation, there are at least five separate stages, collection, processing, review, analysis, and production, and while the average discovery period lasts eight to ten months, the matters themselves can run for years. During the lifecycle of a com…
Show more

D4 Company Life and Culture

Report incorrect company information

D4 Frequently Asked Questions

  • When was D4 founded?

    D4 was founded in 1997.

  • Who are D4 key executives?

    D4's key executives are Laurie Chamberlin, John Rubens and John Evans.

  • How many employees does D4 have?

    D4 has 247 employees.

  • Who are D4 competitors?

    Competitors of D4 include Relativity, Rightscorp and Page Vault.

  • Where is D4 headquarters?

    D4 headquarters is located at 222 Andrews St, Rochester.

  • Where are D4 offices?

    D4 has an office in Rochester.

  • How many offices does D4 have?

    D4 has 1 office.