Content Management · Content & Media
Should you build or buy eDiscovery?
eDiscovery software manages the legally prescribed process of identifying, preserving, collecting, reviewing, and producing electronically stored information (ESI) for litigation, regulatory investigations, and compliance matters. It covers the full Electronic Discovery Reference Model (EDRM) workflow — from legal hold notifications through document review and court-ready production with chain-of-custody documentation.
The build-vs-buy decision for eDiscovery turns on whether the legal defensibility of your process requires the audit trail and chain-of-custody certification that commercial platforms carry, and how much the ongoing compression in AI-assisted review pricing changes the per-matter economics; the decision has been stable, with AI making buying more attractive rather than opening a build window.
Build it, buy it, or bridge?
When building makes sense
Building eDiscovery infrastructure is defensible only for internal investigation and early case assessment — the category where your organization controls the standards and doesn't need to defend its process to opposing counsel or a court. FreeEed is a documented open-source engine used in forensic investigation contexts, and assembling Elasticsearch, Apache Tika, and Tesseract into an early case assessment stack is a known approach for large enterprises. The AI layer for document classification and review is genuinely buildable: embedding-based review and LLM-assisted privilege flagging are now practical for internal use. The hard limit is litigation-grade production. Chain-of-custody documentation, Bates numbering, privilege logging formats, and FedRAMP-authorized processing pipelines are what courts and opposing counsel expect — building those from scratch is a multi-year engineering program, and the legal risk of getting chain-of-custody wrong in a formal matter is significant. The build path covers roughly 40 to 60 percent of the core for a capable team, but the 40 percent it doesn't cover is the part that matters in litigation.
When buying makes sense
Buying eDiscovery is the right call for any organization facing formal litigation, regulatory inquiry, or discovery obligations. Legal defensibility is the product — Relativity, Everlaw, and DISCO carry chain-of-custody documentation, privilege logging formats, FedRAMP authorization, and production-ready Bates numbering that courts and opposing counsel expect without question. No independent team has built a litigation-grade alternative covering all of those requirements. The economics have also shifted in favor of buying: AI-assisted review pricing has dropped from $1.50 to $3.00 per document to $0.11 to $0.50, and platforms like Relativity and Everlaw are bundling AI review tools in standard offerings. That means the per-matter cost is falling without requiring a platform change or a build investment. For organizations that treat eDiscovery as periodic insurance against litigation exposure, the combination of falling per-document costs and pre-bundled AI review makes the buy case stronger than it was two years ago.
The desk read
Legal defensibility is the product in eDiscovery, and that shapes this decision more than anything else. Relativity, Everlaw, and DISCO carry chain-of-custody documentation, privilege logging, FedRAMP authorization, and production formats with Bates numbering that courts and opposing counsel expect to see. Building a system that meets those standards from scratch is a multi-year engineering program. The self-built path works for internal investigation and early case assessment, where you control the standards, but not for litigation-grade production.
The AI shift is actually compressing costs on the buy side here rather than opening a build window. AI-assisted review pricing has dropped from $1.50-$3.00 per document to $0.11-$0.50, and platforms like Relativity and Everlaw are bundling AI review tools into standard offerings rather than pricing them as add-ons. Logikcull and similar platforms are following suit. That means the spend-per-matter is falling without requiring a platform change. For organizations that see eDiscovery as periodic insurance rather than ongoing infrastructure, the economics of buying just got better.
Frequently asked
What is eDiscovery?
eDiscovery software manages the legally prescribed process of identifying, preserving, collecting, reviewing, and producing electronically stored information (ESI) for litigation, regulatory investigations, and compliance matters. It covers the full EDRM workflow — from legal hold notifications through document review and court-ready production with chain-of-custody documentation.
When does building eDiscovery make sense?
Building is defensible only for internal investigation and early case assessment, where your organization controls the standards. Open-source tools like FreeEed and Elasticsearch-based stacks cover that use case well, but litigation-grade production requiring chain-of-custody documentation and court-accepted formats is a multi-year engineering program that no independent team has publicly replicated.
When does buying eDiscovery make sense?
Buying makes sense for any formal litigation or regulatory inquiry. Commercial platforms carry the chain-of-custody documentation, privilege logging, and FedRAMP authorization that courts and opposing counsel expect — that legal defensibility is the product. AI-assisted review pricing has also fallen sharply, making the per-matter cost lower than it was two years ago.
What are the main eDiscovery vendors?
Representative vendors include Everlaw, Nuix, Relativity, Logikcull (Reveal). B4 Pro scores the full set.
How is AI changing eDiscovery costs?
AI-assisted review pricing has dropped from $1.50–$3.00 per document to $0.11–$0.50, and platforms like Relativity and Everlaw are bundling AI review tools into standard offerings. The AI shift is compressing per-matter costs for organizations that buy, rather than opening a meaningful window for self-building litigation-grade systems.