Your buyer makes the same product you do and sells to the same customers. To price the deal properly, it wants your customer list with contract values, your discount structure and your three-year pricing plan.
If you hand that over and the deal collapses, the buyer’s sales team walks away knowing exactly how to undercut you. Worse, if the buyer starts acting on that information before closing, both companies may have a competition law problem.
The standard answer is a clean team, and in practice the data room is where it lives.
What is a clean team, and why does it need its own room?
A clean team is a small group, defined in a written clean team agreement, that is allowed to see competitively sensitive information about the other party during a deal. Its members either work outside the buyer (lawyers, economists, accountants, integration consultants) or are employees walled off from pricing, sales and strategy decisions.
The clean team room is the part of the data room that holds that information. It sits beside the main room but is invisible to everyone outside the clean team group. The principle is simple: sensitive documents go in, and only cleaned outputs come out.
Separating it in the room matters because a data room is where the access record lives. If a regulator or a court later asks who saw the customer pricing file, the audit trail answers that question precisely. An email attachment does not.
Why can a rival bidder not simply see everything?
Two strands of competition law apply, and they work at different stages.
Information exchange between competitors. Until the deal closes, buyer and seller are still separate companies that compete. Sharing current or future pricing, costs, capacity or customer terms between competitors can raise issues under laws such as Section 1 of the Sherman Act in the US, whether or not the deal happens. The FTC’s guidance on dealings with competitors explains why exchanges of competitively sensitive information draw scrutiny.
Gun-jumping before clearance. Where a deal needs merger clearance, the parties must not combine operations or let the buyer control the target before approval. In the US that follows from the waiting period under the Hart-Scott-Rodino premerger notification program; in the EU, the standstill obligation in Article 7 of the EU Merger Regulation has the same effect. Using the target’s sensitive data to steer its customers or prices before clearance can count as premature control.
The clean team structure lets the buyer do real diligence on valuation and synergies while keeping the raw data away from the people who set prices and chase customers.
What information belongs behind the wall?
Not every document needs clean team treatment. Over-restricting slows diligence and frustrates the buyer’s deal team. The test is whether a competitor’s commercial staff could use the information to change how they compete.
| Information category | Example documents | Typical treatment |
|---|---|---|
| Customer-level pricing and terms | Price lists by customer, discount schedules, rebate agreements | Clean team only |
| Customer identities with revenue | Top 50 customers with contract values | Clean team only; aggregated summary to deal team |
| Cost and margin detail | Product-level cost build-ups, supplier pricing | Clean team only |
| Forward-looking strategy | Pricing plans, product roadmaps, bid pipelines | Clean team only, or withheld until after signing |
| Employee pay by named individual | Salary and bonus by employee | Clean team or redacted; also personal data |
| Standard customer contract templates | Unsigned terms and conditions | Main room, with pricing blanked |
| Historic financial statements | Audited accounts, management accounts at company level | Main room |
| Corporate and legal documents | Articles, board minutes (redacted where needed), litigation summaries | Main room |
A useful rule of thumb from deal practice: the more current, granular and forward-looking the data, the stronger the case for the clean team. Historic, aggregated, company-level figures can usually go in the main room.
How does information flow through a clean team room?
The flow has four stops, and the wall sits between counsel’s review and the buyer’s deal team.
How sensitive data moves through a clean team room
The seller uploads raw sensitive files into clean team folders. The clean team reviews them inside the room, builds its analysis and drafts a report. Before anything crosses to the buyer’s deal team, the seller’s counsel, and often the buyer’s competition counsel, review the report to confirm it contains only aggregated, anonymised or historic conclusions.
That review step is the one most often skipped under deadline pressure. Do not skip it. A clean team report that names customers and their prices defeats the whole structure.
What are the alternatives to a full clean team?
A full clean team adds cost and friction. For moderately sensitive data, a lighter tool may be enough. Competition counsel will usually choose among these options per document category.
| Approach | Buyer’s business team sees raw data | Buyer can value synergies | Setup effort | Best fit |
|---|---|---|---|---|
| Clean team with its own room area | No | Yes, via cleaned reports | High | Head-to-head competitors, large overlaps |
| Outside counsel and advisers only | No | Partly, advisers summarise | Medium | Smaller overlaps, short diligence windows |
| Redaction of sensitive fields | Partly, with fields blanked | Limited | Medium | Contracts where only prices are sensitive |
| Aggregation before upload | Only summary figures | Limited | Low | Customer revenue bands, margin ranges |
| Staged release after signing | Yes, later | Yes, after signing | Low | Data needed only for final price adjustment |
Many processes combine them: aggregated figures in the main room for every bidder, redacted contracts for the shortlist, and a clean team area for the preferred bidder’s most sensitive questions.
How do you set up a clean team area in a data room?
Agree the clean team agreement first
Before any upload, both sides sign a clean team agreement naming the members or the roles allowed, the categories of protected information, how outputs are reviewed and what happens to the material if the deal fails. Competition counsel on both sides usually draft it.
Create a separate top-level folder
Add a clearly labelled top-level folder, for example 'CT: Clean Team Only', with its own numbering in the index. Keep it outside the regular folder tree so a broad permission on the main sections never reaches it by accident.
Build a dedicated permission group
Create one group for clean team members only. Grant it access to the clean team folder and whatever main-room folders it needs. Deny that folder to every other group, including the buyer's general deal team and its regular advisers.
Tighten document controls
Set the clean team folder to view-only with printing disabled, switch on dynamic watermarks that show each viewer's name and the time, and use document rights management so access can be revoked after download if downloads are needed at all.
Name an output channel
Create a separate folder, visible to the clean team and the reviewing counsel only, where draft clean team reports are posted for review. Only approved reports move to a folder the buyer's deal team can see.
Test as a non-member, then monitor
Log in as a member of the buyer's deal team and confirm the clean team folder does not appear at all. Once live, review the audit log weekly for any user outside the agreed list touching protected folders.
Two details are easy to miss. First, check the Q&A module: questions and answers about clean team documents should be routed only to the clean team group, or they will leak the very data you walled off. Second, check search. Some rooms index document text, and a search result snippet can expose content from a folder the user cannot open; confirm with your provider how search respects permissions.
The wall is only as good as the folder permission nobody remembered to check. Preview the room as every group before the clean team uploads begin.
Who should be on the clean team?
Small and specific beats large and convenient. The agreement should name individuals or tightly defined roles, and every addition should go through counsel.
Usually in. Outside M&A and competition counsel, economists modelling the overlap, financial advisers working on valuation, integration consultants, and in some deals a handful of buyer employees in finance or integration planning with no current role in pricing, sales or bidding.
Usually out. Sales leaders, pricing managers, product managers, anyone who negotiates with shared customers or suppliers, and senior executives who set commercial strategy.
Employee members often sign individual undertakings and agree not to move into a commercial role for a period after the deal, commonly until closing plus some months, or for an agreed term if the deal fails. That cooling-off provision is a negotiated point, and your counsel will set it.
Which data room features matter most for clean teams?
Almost every serious deal room can support a clean team, because the structure relies on core features: permission groups, folder-level access, watermarks and the audit trail. The differences show up at the edges.
- Granular groups and folder hiding. Non-members should not even see that the folder exists. Every deal-focused room we score offers permission groups; in your trial, confirm a restricted folder is hidden from other groups rather than merely locked.
- Built-in redaction. Useful when contracts go to the main room with prices blanked. In our data, iDeals, Datasite, Intralinks, Firmex, Drooms, SmartRoom and Venue by DFIN include it. Ellty and Ansarada do not have built-in redaction, so redact before upload if you use them.
- Document rights management. Lets you revoke access to downloaded files when a clean team member leaves or the deal fails. In our data, nine of our top ten rooms include it; Box is the exception.
- Audit trail with export. You will want to show who opened each protected file. Make sure the full log exports, not just a dashboard.
- Single sign-on. Helpful when the buyer’s employee members must authenticate through their own identity provider; not essential for outside advisers.
Our M&A shortlist shows how these features line up across the leading rooms.
Running a sale where a strategic buyer is also a competitor? Compare the rooms with the strongest permission and redaction controls.
See M&A data roomsWhat happens to clean team data after signing, or if the deal fails?
After clearance and closing. The companies are combined, so the restriction lifts. Clean team material can be shared with the integration teams, and the folder can be merged into the main archive. Export a full copy of the room and its audit trail first.
Between signing and clearance. The wall usually stays in place. Integration planning can progress, but only through the clean team, and nothing should be implemented that combines operations before approval.
If the deal fails. The clean team agreement normally requires return or destruction of protected material and written confirmation. In the room, revoke the clean team group immediately, use rights management to cut off downloaded copies, and keep the audit log as evidence of who saw what. Archive the log for as long as your counsel recommends.
Where do clean teams go wrong?
The failures are rarely dramatic. They are small lapses under time pressure.
- A business-side manager is added “just for one call”. Every exception erodes the wall. Use counsel-approved additions only.
- The clean team report quotes raw numbers. Reviews by counsel exist to catch this.
- Q&A threads leak content. An answer about a customer price, posted to the general Q&A, is visible to the whole deal team.
- Downloads leave the room. A spreadsheet saved to a laptop is outside your audit trail. Keep protected folders view-only where possible.
- Nobody revokes access when the deal dies. Set a calendar reminder and an owner for close-down.
For the broader document set and when each category typically appears in diligence, see our due diligence checklist.
Frequently asked questions
Is a clean team legally required?
Not as such. It is a practical safeguard competition lawyers use to manage the risk of exchanging sensitive information between competitors and of gun-jumping before merger clearance. Whether you need one depends on the overlap and the data; ask competition counsel.
Can buyer employees be on the clean team?
Sometimes, if they have no role in pricing, sales or strategy and sign individual undertakings. Many clean teams are made up entirely of outside advisers to avoid the question.
Do I need a separate data room for the clean team?
Usually not. A dedicated top-level folder with its own permission group, hidden from all other groups, is the common approach. Some very large deals use a separate room for extra separation.
What does the clean team give back to the buyer?
Aggregated, anonymised or historic conclusions, such as revenue overlap by customer segment or a synergy range, approved by counsel before release. Never raw customer-level prices or terms.
How do I prove who saw clean team documents?
Export the data room's audit trail for the clean team folders. It records each user's views, downloads and prints with timestamps, which is why the protected material should stay in the room rather than in email.