What is the best eDiscovery software for a company in 2026?
A subpoena, an internal investigation, a regulator's request: the right platform freezes the data, collects it cleanly and makes it reviewable before outside counsel's meter starts running.
Enterprise eDiscovery software helps a company find, preserve and produce its own electronically stored information (ESI) when litigation, an investigation or a regulator demands it. For in-house legal, the job starts long before review. Once litigation is reasonably anticipated, you have to stop the deletion of mailboxes, OneDrive files and Teams chats for the right custodians. Under FRCP Rule 37(e), losing ESI that should have been preserved can lead to sanctions. Outside counsel usually arrives later. The company owns both ends.
The short answer. Everlaw is the best all-around choice: unlimited users, a Microsoft 365 connector, and outside counsel invited at no extra license cost. RelativityOne handles the biggest matters and is the platform most firms already know. Microsoft Purview eDiscovery is already in your license if you run Microsoft 365 E3 or E5. ZDiscovery is the simplest way to issue and track legal holds. Logikcull and GoldFynch cover small, occasional matters.
What vendor-written guides skip: almost no platform publishes a price, and each one bills a different unit (GB hosted, GB processed, user, or document reviewed by AI). We mapped each model to in-house scenarios, listed the Purview limits Microsoft puts in the fine print, and flagged where data can live. Equipping a law firm instead? Our eDiscovery ranking for law firms starts from your workflow.
The ranking is editorial: a sponsored placement is always labeled on its card, and no affiliate link changes a score.
The right platform for your situation
Unlimited users, outside counsel at no extra cost
Best for the largest mattersBuilt for the largest matters, global data regions
Already in your Microsoft 365 licenseIncluded with Microsoft 365 E3 and E5
Best AI review without creditsUnlimited Cecilia AI, billed per GB processed
Simplest legal holdHolds, acknowledgments and audit trail
Easiest to launchMonth to month, no contract, from 10 GB
The 8 eDiscovery platforms for in-house teams
The ranking follows our scores and targets in-house legal, compliance or IT teams that run matters themselves. Read the billing column first: it moves your invoice more than any entry price.
| Best for | Billing unit | Free plan | Team size | Visit | ||||
|---|---|---|---|---|---|---|---|---|
| 1 | Everlaw | Best overall | Data volume, unlimited users | 4.5/5 | Quote only | — | Legal teams running several matters a year | Visit → |
| 2 | RelativityOne | Best for the largest matters | Quote only, often through a partner | 4.3/5 | Quote only | — | Large enterprises with recurring investigations | Visit → |
| 3 | Microsoft Purview eDiscovery | Already in your Microsoft 365 license | Microsoft 365 license, Azure pay-as-you-go for some cases | 4.2/5 | Included in Microsoft 365 E3 and E5 | — | Companies already on Microsoft 365 | Visit → |
| 4 | DISCO | Best AI review without credits | Per GB processed, Auto Review per document | 4.2/5 | Quote only | — | Companies in U.S. litigation | Visit → |
| 5 | ZDiscovery | Simplest legal hold | Annual subscription, unlimited users | 4.1/5 | Quote only (annual subscription) | — | Legal teams managing holds year-round | Visit → |
| 6 | Logikcull | Easiest to launch | Per GB, monthly or annual | 4.1/5 | Quote only (per GB, 10 GB minimum) | — | Small and mid-size companies without eDiscovery staff | Visit → |
| 7 | Nextpoint | No data fees | Per user per month | 4.0/5 | Quote only (per user per month) | — | Long-lived archives, small team | Visit → |
| 8 | GoldFynch | Cheapest for a small matter | Flat plan per case by size | 3.9/5 | $27 per month (3 GB) | — | Small one-off matters | Visit → |
Scores combine five weighted criteria, detailed in the methodology. The six platforms also in our law-firm ranking keep exactly the same score. Prices in USD excluding tax, read on each vendor's official page in 2026. "Quote only" means the vendor publishes no rate card and prices each matter. No platform has a permanent free plan.
Is your tool missing from this page? Email us: hello@hackceleration.com
How we compared and scored
This page answers an in-house question: which platform should a company use to preserve, collect and review its own data when a dispute or investigation lands? That is why it adds two tools our law-firm ranking left out: Microsoft Purview eDiscovery, already bundled in many enterprise licenses, and ZDiscovery, built for corporate legal departments.
We read each vendor's pricing page and official documentation, then published user reviews and practitioner discussions. All eight are compared from public material, without opening accounts. Everlaw, RelativityOne, DISCO, Logikcull, Nextpoint and GoldFynch keep the score from our law-firm ranking: one value per tool across the site.
Features carry the most weight, because a missed hold or an incomplete collection costs you in court, not just in dollars. Value and ease of use follow at equal weight: few legal departments have a full-time eDiscovery technologist.
- Ease of useCan in-house counsel or a compliance lead issue a hold, run a search and tag documents without heavy training?20%
- Value for moneyReal cost on a corporate matter, clarity of the model, extras (expanded volume, AI credits, user minimums).20%
- Features and depthLegal hold, collection, processing, AI review, redaction, production. The core need, hence the top weight.30%
- Support and onboardingIncluded training and migration, responsiveness in reviews, help without a mandatory service partner.15%
- IntegrationsMicrosoft 365, Google Workspace and Slack connectors, HR integrations, data residency options.15%
The ranking is editorial: a sponsored placement is always labeled on its card, and no affiliate link changes a score.
eDiscovery vendors change pricing without notice. Get the updates
Everlaw
Everlaw is the platform we recommend first to an in-house team. The reason is its model: user licenses are unlimited on every plan. You can give access to in-house counsel, compliance, HR and outside counsel without the bill moving. On a per-seat platform, the same ten-person team costs ten times the entry price.
For collection, Everlaw connects to Microsoft 365, Google Workspace and Zoom, so you pull email, files and meeting recordings without manual exports. Processing runs up to one million documents per hour, and audio and video transcription is built in. For an internal investigation that mixes email, chat and recorded calls, that saves real time.
Review is strong. Predictive coding learns from your first calls to rank the rest, concept clustering surfaces themes, and batch redaction reaches spreadsheets and video. Machine translation and extractions are included on a single-document basis. Deep Dive, the AI that queries a whole corpus, consumes credits. On security, the vendor lists SOC 2 Type 2, FedRAMP Moderate and GovRAMP Moderate.
The limit: no public pricing. Everything goes through a volume-based quote, and AI credits add up if your team leans on them. Reviewers also flag an annoyance: a colleague's searches stay invisible until they share them.
Tip: onboarding, training and standard migration are included. If you're leaving another platform, get the migrated volume and expected production formats written into the quote.
- Unlimited user licenses on every plan
- Microsoft 365, Google Workspace and Zoom connectors
- Processing up to one million documents per hour
- Built-in audio and video transcription
- ✓Outside counsel, HR and compliance at no extra cost
- ✓Onboarding, training and standard migration included
- ✓SOC 2 Type 2 and FedRAMP Moderate
- ✗No public pricing, quote only
- ✗Deep Dive and multi-document AI run on credits
- ✗Saved searches hidden until shared
The best pick if your legal department runs several matters a year with outside counsel. Price the AI credits on a real matter before signing, and make shared searches a habit from week one.
RelativityOne
RelativityOne is the platform every large firm and eDiscovery service provider knows. For a company, that matters: when outside counsel or opposing parties already work in it, exchanging productions is simpler. It also handles volumes other platforms turn away.
Data residency is documented. You can choose instances in several regions, including France, Germany, Ireland, the Netherlands, the UK and Switzerland, and data stays in the region you pick. The vendor also commits not to use customer data to train third-party models. For a multinational with EU employees, that answers the privacy team's first question.
Pricing stays opaque, and most companies buy through a partner. One reseller does publish its rates in a public UK government catalog: £7 per GB per month for review data, £2.50 for data in early case assessment, £1.50 for dormant data, users included. That isn't Relativity's price, but it gives a ballpark and shows what you save by archiving fast.
The limit: the learning curve. Reviewers call it steep and note that initial setup takes a lot of back-and-forth with the provider. On a small one-off matter, value drops quickly.
- Regional instances across Europe, including France and Germany
- Customer data never used to train third-party models
- AI on the Netherlands instance runs inside the EU Data Boundary
- Public dormant rate at one reseller: £1.50 per GB per month
- ✓A platform most service providers know
- ✓Documented data residency choices
- ✓Dormant storage far cheaper than active review at resellers
- ✗Steep learning curve
- ✗Setup often needs a service partner
- ✗Expensive on a small matter
The pick if your company runs investigations back to back or faces heavy litigation. Negotiate the dormant-data rate up front: that's where future years' spend is decided.
Microsoft Purview eDiscovery
Before you buy anything, check your Microsoft license. If your company runs Microsoft 365 Enterprise E3 or E5, it already has Purview eDiscovery. E3 covers search, holds and export. E5 adds the premium features: review sets, analytics and advanced custodian management. Admins and users of the tool need the right license.
For in-house legal, it's usually the best first step. You place holds where the data lives, up to 2,000 mailboxes per case on premium, without copying anything. Microsoft 365 data storage is included in the subscription. Only some scenarios bill through Azure pay-as-you-go, such as AI data outside Microsoft 365 or the Export API on E3.
The limits are in the documentation, and you need to know them before telling counsel a document doesn't exist. A review set tops out at 1 TB and a case at 40 million documents. Attachments over 150 MB aren't indexed, and neither are image attachments: a contract scanned and sent as a photo slips past keyword search. OCR goes up to 24 MB. Export caps at 5 TB per day on premium, and PST files split at 10 GB. If your tenant moves region, cases don't follow.
The limit: Purview sees Microsoft 365, not the rest. Once data sits in Google Workspace, Slack or a forensic image, or review involves several outside firms, a dedicated platform takes over. Many companies run both: hold and collect in Purview, review in Everlaw or RelativityOne.
- In-place holds up to 2,000 mailboxes per case (premium)
- Microsoft 365 data storage included
- Review sets up to 1 TB
- Export up to 5 TB per day on premium
- ✓Nothing to buy if you're already on E5
- ✓Data never leaves your tenant
- ✓IT and legal place holds without a vendor
- ✗Image attachments and files over 150 MB not indexed
- ✗Built for Microsoft 365 data, little beyond it
- ✗Review less comfortable than a dedicated platform
The starting point for any Microsoft 365 company: place your holds and collect here. To review a large matter with outside counsel, export to a dedicated platform.
DISCO
DISCO built its platform around one idea: AI is part of the price. Cecilia, its assistant, comes with unlimited use at no extra cost. You query the matter, summarize a thread or hunt for a fact without counting credits. For an in-house team that needs to get on top of a case before briefing counsel, that's valuable.
The model is easy to read: you pay per GB of data processed. Two lines need attention. The Hold module, which manages legal holds, is also billed per GB, with unlimited requests, users and custodians. And Auto Review, the AI first-pass review, is billed per document on top of volume. On a large matter, that line can outweigh storage.
Users like the onboarding: DISCO earns one of the best ease-of-use ratings in the category. They criticize search that can be slow. In head-to-head reviews, Everlaw edges ahead on service and negotiation.
The limit: no public pricing, and a product shaped around U.S. procedure. For a purely domestic regulatory inquiry, you'll pay for features you may not use.
- Unlimited Cecilia AI, no credits
- Hold module per GB, unlimited custodians
- Auto Review for first-pass review
- Services offered in four tiers
- ✓Easy-to-read model: volume processed
- ✓AI built into the review flow
- ✓Onboarding praised by users
- ✗Auto Review billed per document on top of GB
- ✗Search reported slow on large volumes
- ✗No public pricing
The right pick if your company litigates in U.S. courts and wants AI to do the first cut. Have Auto Review priced on a real sample before you sign.
Planning an internal investigation or a cross-border matter? Get our next guides
ZDiscovery
ZDiscovery, from Zapproved (part of Exterro), is the platform in this ranking most clearly built for corporate legal departments. Its starting point is the legal hold: send the notice to custodians, track who acknowledged it, chase the late ones, and release the hold when the matter closes, with an audit trail to defend it.
There are two annual subscriptions. Hold + Preserve covers holds, in-place preservation and HR integrations, so you know a custodian is leaving before their mailbox is deleted. Hold, Preserve + Collect, Review adds Office 365 collection, processing powered by Nuix, review, redaction and Bates numbering for productions.
Users are unlimited, and outside counsel joins at no extra cost. Migration, training and support are included. There's no trial: discovery goes through a demo.
The limit: review is lighter than Everlaw or RelativityOne on multi-million-document litigation, and no prices are published. Think of it as your legal department's everyday tool, with a heavier platform on call for the outliers.
- Legal hold with acknowledgment tracking and audit trail
- HR integrations to catch departing custodians
- Office 365 collection and Nuix-powered processing
- Redaction and Bates numbering
- ✓Built for in-house legal, not law firms
- ✓Unlimited users, outside counsel included
- ✓Migration, training and support included
- ✗No free trial
- ✗No published prices
- ✗Lighter review on very large matters
The best tool for running legal holds at scale in a mid-size company. Turn on the HR integration on day one: it's what keeps a departing employee's mailbox from vanishing.
Logikcull
Logikcull, now part of Reveal, targets teams without in-house eDiscovery expertise. You drag in files, it processes them and makes them searchable, then you filter. For a mid-size company hit with a document request in a commercial dispute, it's often the fastest way to get moving.
Three plans. Pay As You Go is monthly, per GB, with a 10 GB minimum and no commitment; users, projects and downloads are unlimited, in-app support runs 24/5, and a test matter is included. The annual subscription adds Reveal AI, audio and video transcription, Slack filtering, and PII detection and redaction. Corporate Suite, the enterprise plan, adds unlimited legal holds and collection from 31+ sources.
No amounts are shown. The vendor has also announced the end of per-GB monthly hosting fees in favor of per-matter plans, so ask which model applies to your contract before comparing.
The limit: reviewers point out that volume is counted after expansion. A compressed archive grows once opened, and that's the size you pay for. Archive the project the day the matter closes.
- Drag-and-drop upload, automatic processing and OCR
- Unlimited users, projects and downloads
- Corporate Suite: unlimited legal holds, 31+ collection sources
- Slack filtering and PII redaction on annual plans
- ✓Fastest onboarding in this ranking
- ✓No commitment on the monthly plan
- ✓In-app support 24/5
- ✗Volume counted after expansion
- ✗No published amounts
- ✗Less powerful than the leaders on large volumes
The best tool for a company that does eDiscovery now and then. If holds become routine, compare Corporate Suite with ZDiscovery over a full year.
Nextpoint
Nextpoint flips the market's model: you pay for people, not data. Unlimited cases, free hosting, and no charge for storage, OCR, deduplication or production. There are three plans, Essential, Advanced and Apex, the last one custom.
No amounts are published: the vendor charges a monthly per-user rate, with a discount for annual payment. For a company that keeps litigation archives online for years, this model avoids a bill that grows every month.
The math flips as the team grows. An investigation with ten reviewers means ten licenses. Custom onboarding costs extra, and services such as forensic collection or managed review are billed separately. No trial, just a demo.
The limit for a multinational: no public information on hosting outside the U.S. Ask in writing before uploading data on EU employees.
- No storage, OCR or production fees
- Unlimited cases on every plan
- Annual payment discount
- Forensic collection and managed review as options
- ✓The only no-data-fee model in this ranking
- ✓No surprise volume-based charges
- ✓Predictable on long-running matters
- ✗Expensive as the review team grows
- ✗No free trial
- ✗No public information on non-U.S. hosting
Hard to beat for keeping hundreds of gigabytes online with a small team. Run the math again as soon as more than five people need access.
GoldFynch
GoldFynch is the only vendor in this ranking that publishes its full rate card. A 3 GB case costs $27 a month, 10 GB costs $76. Above 300 GB, each extra 50 GB adds $275. You pay for the tier you pick, not the volume actually stored. Users, processing, OCR and productions are free and unlimited.
For a company, two lines change the bill. The Organization plan costs $200 a month even with no case open, on top of the cases themselves. And hosting outside the U.S. costs about 50% more. Government agencies and nonprofits get 10% off the first month above 15 GB.
Practitioners rate it highly on price. One with twelve years in the field recommends it, noting that competitors charge for things you can do yourself. The gaps they mention are specific: no pop-out review panel for dual monitors, no near-duplicate detection, limited advanced security controls.
The limit for in-house legal: GoldFynch doesn't advertise legal hold or Microsoft 365 collection. It's a review tool for small matters, not a governance platform.
- Public rate card: $27 for 3 GB, $76 for 10 GB
- Users, processing, OCR and productions free
- 10% off the first month for agencies and nonprofits
- Free 90-day trial case
- ✓The only price you can read before talking to sales
- ✓Cheapest in the ranking on a small matter
- ✓Billed by tier, not by stored volume
- ✗Legal hold and Microsoft 365 collection not advertised
- ✗Non-U.S. hosting about 50% more
- ✗Organization plan billed even with no case
A solid entry point for a one-off matter of a few gigabytes. Once holds multiply, Purview, ZDiscovery or Logikcull Corporate Suite should take over.
Which eDiscovery platform fits your situation
A company doesn't buy eDiscovery the way a law firm does. It must preserve before it reviews, and its data almost always lives in Microsoft 365 or Google Workspace. Six situations come up again and again.
You're on Microsoft 365 E3 or E5
Start with Purview. Place holds and run searches where the data lives, with nothing to buy. Move to a dedicated platform only to review a large matter, or when part of the data sits elsewhere.
You issue legal holds all year
ZDiscovery or Logikcull Corporate Suite. Acknowledgment tracking, reminders and HR integrations matter more than review horsepower. DISCO's Hold module fits if you already use its platform.
A sensitive internal investigation
Require data residency in a region you control, a contract that bars model training on your data, and a human who validates every AI conclusion. RelativityOne documents its regions; for the others, get it in writing.
Heavy U.S. litigation
Everlaw, DISCO or RelativityOne, chosen with outside counsel. The right platform is often the one your firm already runs well. Negotiate volume, AI credits and dormant storage before the first upload.
A one-off matter of a few gigabytes
GoldFynch if you want a price upfront: $76 a month for 10 GB. Logikcull if you'd rather have in-app support and a month-to-month plan.
Litigation archives kept for years
Nextpoint, which doesn't charge for data. The model holds as long as three or four people log in; beyond that, compare with Everlaw's unlimited users.
Four other platforms worth knowing
These names show up in searches and RFPs. They're left out of the ranking for lack of readable pricing or because they target a different need.
Other tools
Reveal: Logikcull's parent company
PlatformReveal groups several brands, including Logikcull, Onna (collection from cloud apps) and Ask, its optional AI. Pricing is pay-as-you-go or subscription, with unlimited users on every plan. No amounts are published: it's an option for a large enterprise that wants one platform from hold to review.
- Price
- Quote only
- Edge
- Unlimited users
Nuix: the forensic team's engine
ForensicsNuix, an Australian vendor, processes very large volumes of mixed data. Its engine powers ZDiscovery's processing. No trial, pricing on request: it targets investigation teams and service providers, not a legal department getting started.
- Price
- Quote only
Exterro: governance and forensics
GovernanceExterro, Zapproved's parent, sells a broader suite: data governance, privacy and FTK forensic tools. Everything is quote only. Worth a look if your project goes beyond eDiscovery into information governance as a whole.
- Price
- Quote only
ZyLAB: the European-born option
EuropeZyLAB, founded in Amsterdam and now part of the IPRO and Reveal group, is the only European-born vendor we found in this market. It publishes neither prices nor hosting details: ask for both in writing if European origin matters to you.
- Origin
- Amsterdam
Six ways to pay less and lose nothing
Settings and traps drawn from vendor documentation and practitioner feedback. Each one changes your bill or the strength of your record.
Tips
Hold in Purview, export only what matters
CostOn E3 or E5, holds in Purview cost nothing extra and data stays in your tenant. Export to a paid platform only the scope filtered by custodian, date range and keywords. Every gigabyte left at Microsoft is a gigabyte you don't pay for elsewhere.
- Cap
- 2,000 mailboxes per case (premium)
Check partially indexed items
DefensibilityPurview indexes neither image attachments nor files over 150 MB. A zero-hit search proves nothing. Open the partially indexed items report and handle them separately, with OCR or manual review, before telling counsel a document doesn't exist.
- OCR
- Up to 24 MB per file
Cull before you upload
VolumeWith volume-based vendors, every useless file is billed every month. Deduplicate, de-NIST (remove known system files by matching them against a public reference list), and filter by date and email domain once scope is set. Remember that volume is often counted after expansion.
Move to dormant storage as soon as review ends
CostA closed matter left in active review keeps costing full rate. At one RelativityOne reseller, dormant data costs £1.50 per GB per month versus £7 in review. In Logikcull, archive the project. Put the switch date on the calendar the day the matter opens.
- Gap
- £1.50 vs £7 per GB per month
Get the off-sheet lines priced
ContractThe per-GB price is one line. Ask in writing for processing, production, project fees and minimums. Then each vendor's own traps: per-document Auto Review at DISCO, Deep Dive credits at Everlaw, a license per reviewer at Nextpoint, about 50% more for non-U.S. hosting at GoldFynch.
Internal investigations: four clauses before the first file
ComplianceFor investigation material on employees, no consumer AI tools. Require a contract that bars model training on your data, hosting in a region your privacy team approves, and a human who validates every AI conclusion. Add a retention period and deletion at matter close.
Keep going
These pages round out an in-house legal team's toolkit.
The ranking from the firm's side.
You manage company contractsContract management for legal teamsOur ranking for in-house legal.
Your investigations start with a reportWhistleblowing softwareReceive and handle reports.
You manage documents day to dayDocument managementEveryday document control, outside litigation.
You run privacy complianceGDPR compliance softwareRecords, access requests, processors.
You want AI for legal workLegal AIResearch, drafting and analysis.
Your questions about enterprise eDiscovery
What's the difference between legal hold and eDiscovery?
A legal hold freezes data; eDiscovery finds, reviews and produces it. The hold comes first: once litigation is reasonably anticipated, you must stop deletion for the relevant custodians. Under FRCP 37(e), failing to preserve ESI can lead to sanctions. ZDiscovery and Purview both hold data in place, without copying it.
Is Microsoft Purview enough for eDiscovery?
For holds and collection inside Microsoft 365, yes; for reviewing a large matter with outside counsel, rarely. Purview caps a review set at 1 TB, doesn't index image attachments, and sees nothing outside Microsoft 365. Most companies pair Purview with a review platform.
How much does eDiscovery cost per GB?
Most often $25 to $75 per GB for processing, and under $10 per GB per month for hosting without analytics. Those are the ranges industry practitioners report most often in 2026, not vendor list prices. Add production, project management and billing minimums on top.
What is TAR, and does it hold up?
Technology-assisted review (TAR) uses your reviewers' early decisions to rank or classify the rest of the documents. Everlaw's predictive coding is one example, DISCO's Auto Review another, billed per document. It speeds review, but a human still validates samples and every produced document.
Cloud or on-premise eDiscovery?
Cloud, in nearly every case. Every platform in our ranking is cloud-based, and on-premise has become a niche: GoldFynch quotes on-premise from $250,000 a year. Choose on-premise only if a contract or regulator forbids your data from leaving your own infrastructure.
Can EU employee data go into a U.S. eDiscovery platform?
Not without care. GDPR doesn't automatically recognize a foreign court order requiring a data transfer, and some countries add blocking statutes. Prefer a platform with European data residency, such as RelativityOne, and have counsel validate every cross-border production.
How do you run an internal investigation with eDiscovery software?
Scope it to the people and periods that matter, then hold, collect and review in a platform whose data region you control. Keep consumer AI out of the evidence, keep a human in the loop and log every access. PII redaction protects bystanders named in the documents.
What happens to the data when the matter closes?
Release the hold, then archive or delete. A forgotten hold keeps data your retention policy should have purged. On the platform side, move the case to dormant storage or archive it: at one RelativityOne reseller, dormant data costs almost five times less than data in review.
