When their client faced a review encompassing 1.9 million documents, Inventus used Relativity to cut data volume by upwards of 99 percent and save their client 7,739 document review hours.

After a large company was confronted with allegations of violating the Employee Retirement Income Security Act, they needed to take a deeper dive into the relevant information. They turned to Inventus to reduce the documents for review so they could assess if there was any merit to claims that they failed to disclose investment options’ expenses and risks.

Inventus’ forensics team got to work and conducted a series of collections, which yielded 1.9 million documents spanning 17 custodians.

To cull the documents for review, Inventus pushed the data into an Early Case Assessment workspace in Relativity and ran a search based on names and terms their client provided. Then they took an interactive approach. They ran multiple search terms reports and tracked the number of hits certain terms accrued. This allowed Inventus to identify which terms appeared more frequently among the document set. Using this insight, they refined their original terms list to yield a more targeted list of documents, which reduced the document set by nearly 77 percent.

Most of the remaining 440,000 documents were emails. Inventus ran email threading to assemble email content in an easy-to-review format and eliminate duplicative content. Threading found that 135,000 emails had no unique content and could thus be removed.

Then, to further accelerate review, Inventus approached their client about using Relativity Assisted Review to help automatically classify documents as responsive and non-responsive.

“We knew this case would be ideal to use Assisted Review with threading based on the sheer volume of documents,” said Natalie Franke, senior project manager at Inventus.

Two subject matter experts sifted through the documents that were not eligible for Assisted Review, such as those containing insufficient text. Then, the experts coded a sample set of eligible documents and conducted a series of training rounds to ensure Assisted Review was accurately coding documents based on responsive criteria.

Then, Inventus finished running the full document set through Assisted Review. The results yielded 34,000 documents coded as responsive and 257,000 as non-responsive, with nearly 15,000 documents uncategorized. Inventus bundled the responsive and uncategorized documents—just 49,000—for the client’s review team.

Inventus Analytics Graphic

Using Assisted Review and email threading, Inventus truncated the documents for review by more than 99 percent, saving their client 7,739 review hours and $348,261 in costs.

“This was a big success for us when you look at how we substantially reduced the data universe. Our client was excited about how we leveraged technology to get the job done. Using Relativity Assisted Review with email threading made that possible.”
NATALIE FRANKE, Senior Project Manager


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Inventus is a global e-discovery management practice focused on reducing the costs and risks associated with the discovery process through the effective use of leading technology. For over 25 years, Inventus has been at the forefront of discovery services and has worked with corporations, law firms, and government agencies to develop a deep understanding of their needs. A truly global organization with headquarters in both Chicago and London, Inventus has offices throughout the United States, Europe, and Asia, where they have supported review in over 35 languages. Inventus is also a Relativity Best-in-Service Orange partner.