• D4 is a national provider of electronic discovery, computer forensics, information security and management, and deposition services to law firms and corporations, and has been instrumental in helping customers realize up to a 70% cost reduction over previous eDiscovery solutions. At D4, we focus on technology and process to streamline the discovery lifecycle in the most defensible, practical and cost-effective manner possible. We believe that eDiscovery doesnt have to break the bank and we make that belief a reality for clients every day. Founded in 1997 in Upstate New York, D4 has grown to a national presence. With over 160 employees, D4 has offices in Buffalo, Chicago, Detroit, Grand Rapids, Lincoln, New York City, Omaha, Orlando, Phoenix, Rochester, San Francisco, San Diego and Tampa. D4s state-of-the-art Tier 3 data center and operations in Rochester are complemented by electronic discovery, litigation support and paper document services in other offices across the country. D4 has been recognized by Inc. Magazine as one of the fastest-growing private companies in the US, and is a three-time Inc. 500/5000 honoree. There is a reason why hundreds of AMLAW 200 firms and Fortune 1000 companies choose D4. Our unprecedented customer service, coupled with our industry experts and best-of-breed technology, is why the D4 way is the better way.
  • location

    Headquarters:222 Andrews Street , Rochester, New York, United States

  • D4 Llc phone

    Phone Number: +1 866-625-2720

  • D4 Llc website


  • D4 Llc employees


  • D4 Llc revenue

    Revenue:$100 - 250M

  • D4 Llc legal name

    Legal Name:D4 Llc

  • D4 Llc's Social Media

    D4 Llc linkedin D4 Llc facebook D4 Llc twitter
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  • |  NAICS Code: 541110  |

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CEO for D4 Llc

Brian Deforest

President And Chief Executive Officer

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Eric Blazak

Vice President Marketing And New Business Strategy

John Clingerman

Vice President Forensic Services Group, Digital Forensic Investigations

Jual Makassar


Sam Delsenno

Managing Director, Ediscovery Services Omaha And Lincoln

Onwor Latez

Managing Director

Frequently Asked Questions regarding D4 Llc

  • Where are D4 Llc's Headquarters?

    D4 Llc's Headquarters are in 222 Andrews Street ,Rochester,New York,United States

  • What is D4 Llc's phone number?

    D4 Llc's phone number is +1 866-625-2720

  • What is D4 Llc's official website?

    D4 Llc's official website is

  • What is D4 Llc's Revenue?

    D4 Llc's revenue is $100 - 250M

  • What is D4 Llc's NAICS code?

    D4 Llc's NAICS code is 541110

  • How many employees are working in D4 Llc

    D4 Llc has 122 employees

  • What is D4 Llc's Industry?

    D4 Llc is in the industry of Legal Services

  • Who is D4 Llc's CEO?

    D4 Llc's CEO is Brian Deforest

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