H5 is an information retrieval firm that provides specialized document search, review, and analysis services to law firms and corporations. We advise on and implement a full range of customized, technology-enabled discovery strategies for all stages of litigation and investigations, from collection to production. To address today’s complex information retrieval challenges, we combine advanced technologies and expertise in linguistics, statistics, computer science, law, and process design. Through this approach, we capture the relevance judgments of lawyers to automate the assessment of documents and find the information clients need. Our process has been independently proven to yield faster, more cost-effective, and more accurate results than any alternative search and review method. Since our founding in 1999, we have collaborated closely with our clients to help them achieve strategic, tactical, and financial advantages in all phases of their matters.