Confidentiality agreement (NDA)

Definition

You wrote a teaser. A buyer is interested. They want more: the IM, financials, customer list, management bios. Before any of that crosses, they must sign a confidentiality agreement (NDA). It's the first contract of the sale process, and it determines what protection you have when (not if) at least one buyer fails to close.

The standard 2026 Benelux mid-market NDA structure. Six standard sections: (1) Definition of confidential information: what counts as protected (everything received from seller or advisor) vs. what doesn't (information already public, independently developed, received from third parties). (2) Permitted uses: buyer may use for evaluating the transaction only, not for own competitive purposes. (3) Duration of confidentiality: typically 18-24 months from signing in mid-market; sometimes 36 months in highly competitive sectors. (4) Return or destruction of information: at process end or seller request. (5) Non-solicit of employees: typically 12-24 months. (6) Non-solicit of customers: typically 12-24 months, sometimes 36 months for highly relational businesses.

The Belgium vs Netherlands enforcement differences in 2026. Belgian courts: NDAs are enforced through general contract law (Civil Code 1101-1369) with relatively standard liquidated-damages clauses being upheld where reasonable. Specific performance available but rarely awarded. Litigation timeline 18-30 months for material breaches. Dutch courts: similar enforcement framework via BW Book 6 (general contract) and BW 7:421 (specific NDA case law). Liquidated damages tend to be more rigorously moderated under BW 6:94 proportionality review. Both jurisdictions take NDAs seriously but neither offers fast-track enforcement: the seller's practical recourse against NDA breach is reputational pressure plus damage claims after the fact, not real-time injunction.

The two most-negotiated NDA terms in 2026 practice. First, non-solicit scope. Buyer-friendly: "named senior employees only" (typically 5-15 names) for 12 months. Seller-friendly: "any employee" for 24 months. The negotiation typically lands somewhere in between: "any employee earning above €60-80k who was identified during the process" for 18 months. The wider the non-solicit, the more useful when a buyer walks away and tries to poach the team. Second, duration of confidentiality. Buyer-friendly: 12 months (limits long-term restriction on the buyer's use of intelligence gained). Seller-friendly: 36 months (covers process timeline plus full post-process protection). 18-24 months is the mid-market 2026 norm.

What happens when NDA is breached. Three patterns we see in Benelux practice. (1) Information leakage to media or competitors: the most common breach. Seller can claim damages but enforcement is slow; reputational dynamics in tight Benelux M&A circles typically deter blatant breaches. (2) Employee solicitation by walk-away buyer: happens occasionally; non-solicit clause is the primary protection, with liquidated damages typically €25-100k per solicited employee. (3) Customer poaching using process-derived intelligence: rarer but most damaging; requires careful customer-protection clauses with similar liquidated-damages structures. The cost of NDA disputes in Benelux 2026: typically €50-200k in legal fees + 18-30 months to resolve, on top of any damages won. The deterrent value is significant; the enforcement reality is messy.

A worked Benelux example. A Hasselt B2B software business runs a structured sale process in 2026 with 18 buyers receiving the teaser. 14 sign NDAs to receive the IM. 6 progress to management presentations. 2 reach LOI stage; 1 closes. One of the four buyers who didn't reach LOI (a strategic competitor in adjacent vertical) hires the seller's sales director four months later. The seller invokes the NDA non-solicit (18 months, €75k per employee liquidated damages). The competitor settles for €60k after initial litigation threat. Total seller protection from one strong NDA: €60k recovered + signal to other buyers that NDAs are enforced. Without the non-solicit, the loss would have been the entire client-relationship value tied to the sales director (estimated €350-500k revenue impact over 24 months).

Worked example

Process: 18 teaser distributions → 14 NDAs signed → 6 management presentations → 2 LOIs → 1 closing. Post-process breach: 1 buyer-side employee solicitation. Non-solicit clause: 18 months, €75k liquidated damages. Recovery: €60k after settlement. Avoided loss: €350-500k revenue impact from sales-director loss. NDA enforcement ROI: ~5-8x cost.

When it matters

Every Benelux M&A sale process requires NDAs before any disclosure beyond the teaser. The protection is not just legal but reputational: knowing that the seller is willing to enforce shapes buyer behaviour throughout the process. The two terms that matter most: (1) non-solicit scope and duration (more is better, within proportionality limits); (2) confidentiality duration (18-24 months minimum). Without a properly drafted NDA, information leakage and post-process raiding are inevitable in competitive Benelux 2026 sectors.

Frequently asked

Should the NDA be one-way or mutual?

In Benelux 2026 mid-market: typically one-way (buyer signs commitments to seller). Mutual NDAs make sense when (a) the buyer is also sharing confidential information about its own strategic plans, or (b) the buyer is a regulated entity that requires reciprocal protection. For most sell-side processes, one-way NDA from buyer to seller is the standard. The seller's advisor typically provides the template.

Can the seller share information with multiple buyers simultaneously?

Yes, that's the standard structure of a competitive sale process: each buyer signs their own NDA before receiving information. The buyers are unaware of each other's identities (anonymised via "shortlisted buyers" language in the IM/data room). The seller's advisor manages information flow to ensure no buyer sees materially different information without commercial justification.

What if the buyer is a regulated entity (PE fund, bank) with restrictions on NDAs?

PE funds and banks often have internal restrictions on standard NDA terms (e.g., they can't sign non-solicits broader than 12 months, can't agree to certain liquidated-damages amounts). The negotiation lands in modified language that satisfies both parties: often shorter non-solicit duration, narrower scope, capped damages, or arbitration-only enforcement. The seller's advisor should know the standard PE/bank NDA carve-outs in 2026 Benelux practice.