About Us

Information Retrieval Experts

H5 is the foremost expert in information retrieval for the legal industry. Since 1999, law firms and corporations have turned to H5 to help solve their document search, review, and analysis challenges in connection with litigation, investigations, and related legal information management needs.

We provide a range of advisory and implementation services that helps our clients achieve strategic and financial advantages throughout the lifecycle of a matter, whatever its size or type.

We were founded on the principle that information retrieval is distinct from the practice of law and corporate IT. We also believe that the range of complex information retrieval problems in the legal industry – from early case assessment to document review for production, case preparation, and legal hold management – requires specialized expertise. We address these challenges by combining professional services, advanced proprietary technologies, and expertise in linguistics, statistics, computer science, law, research, information technology, process engineering, and e-discovery. Through this approach, we are able to capture litigators’ relevance judgments and automate the assessment of documents in a collection.

Over the past decade, we have helped clients save millions of dollars in document review costs and achieve billions in favorable legal outcomes.

H5’s process is independently proven to yield more cost-effective, consistent, and accurate results than any review method.

Learn More

We invite you to learn more about us by exploring our website. You can also browse through publications by us and about us.

For those interested in a career with H5, please visit our careers section.