Types of NDA: The Complete Guide to Non-Disclosure Agreements
Businesses share confidential information every day with employees, vendors, contractors, investors, and partners. An NDA helps make sure that information stays protected.
- The three main types of NDAs are unilateral, mutual, and multilateral agreements.
- The right NDA depends mainly on how confidential information moves between the parties.
- Businesses can also use purpose-specific NDAs for employees, contractors, vendors, investors, and inventors.
- Centralized NDA management helps businesses track approvals, expiry dates, renewals, and obligations
However, not every NDA works the same way. Choosing the right type depends on who is sharing information, who receives it, and how many parties are involved.
In this guide, we explain the main types of NDA agreements, when each one is used, the clauses they commonly include, and how businesses can manage NDAs more effectively.
What is an NDA?
A non-disclosure agreement, or NDA, is a contract used to protect confidential information. It defines what information must remain private and explains how the receiving party can use that information.
Businesses commonly use NDAs to protect information such as:
- Trade secrets
- Customer information
- Pricing details
- Financial information
- Business plans
- Product roadmaps
- Source code
- Research data
- Intellectual property
- Internal processes
NDA automation helps organizations efficiently manage non-disclosure agreements that protect trade secrets, financial data, business strategies, client lists, product roadmaps, source code, and other confidential information.
US vs UK terminology: In the United States, “NDA” is the dominant term. In the United Kingdom, “confidentiality agreement” is more common, though both terms are legally interchangeable and courts in both jurisdictions treat them identically.
The 3 core types of NDA
The three core types of NDA are unilateral, mutual, and multilateral NDAs. The main difference is how confidential information moves between the parties.
Factor | Unilateral NDA | Mutual NDA | Multilateral NDA |
Number of parties | Two | Two | Three or more |
Information flow | One direction | Both directions | Multiple directions |
Confidentiality obligation | Mainly the receiving party | Both parties | Multiple parties |
Common uses | Employees, contractors, vendors | Partnerships, M&A, joint ventures | Research, consortiums, multi-party projects |
Complexity | Low | Moderate | Higher |
1.Unilateral NDA
A unilateral NDA provides one-way confidentiality protection.
One party shares confidential information, while the other party agrees to protect it.
For example, a company may give a contractor access to internal systems. The contractor receives confidential information but does not provide similar information in return.
In this situation:
- The company is the disclosing party.
- The contractor is the receiving party.
- The confidentiality obligation mainly applies to the receiving party.
When to use: If both parties expect to exchange confidential information, a mutual NDA may be more suitable.
2. Mutual NDA
A mutual NDA provides two-way confidentiality protection.
Both parties share confidential information, and both agree to protect what they receive.
Each organization acts as both a disclosing party and a receiving party.
For example, two technology companies discussing a partnership may exchange product plans, pricing information, technical details, and customer information. A mutual NDA protects confidential information from both organizations.
When to use: A mutual NDA is useful when confidentiality responsibilities need to apply equally to both parties.
3. Multilateral NDA
A multilateral NDA involves three or more parties.
Instead of creating separate NDA agreements between every organization, the parties can use one agreement that defines confidentiality responsibilities for everyone involved.
For example, imagine a project involving a customer, software provider, consulting company, and implementation partner. All four organizations may need to exchange confidential information.
A multilateral NDA can place those confidentiality requirements in one document.
When to use: Use a multilateral NDA when three or more parties are sharing confidential information as part of a joint project, partnership, procurement, or development effort.
Don’t let NDA contracts get lost after the signature.
CLM 365 helps your team stay on top of approvals, obligations, renewals, deadlines, and every important detail that comes after the deal is signed.
Key Elements Found in All Types of NDA
Beyond these three structural forms, types of NDA are further refined by their purpose employee NDAs, financial NDAs, invention NDAs, and others that add specific clauses suited to the context. We’ll cover those in detail after the core types.
1.Unilateral NDA: one-way protection
A unilateral NDA also called a one-way NDA is the arrangement where only one party (the disclosing party) shares confidential information. The other party (the receiving party) agrees in writing not to share or use that information without permission.
The obligation is entirely one-sided in unilateral contract. The disclosing party has no confidentiality duty they’re the ones handing over the information. The receiving party takes on full legal responsibility to keep it secret.
When to use a unilateral NDA
This is the right types of NDA agreement in situations where information flows in one direction only.
- Hiring a new employee who will access internal data, client records, or product plans
- Onboarding a contractor, consultant, or freelancer working on a sensitive project
- Bringing in a vendor or supplier who will see your processes or proprietary systems
- Sharing a startup’s business plan or financials with a potential investor
- An inventor showing a prototype or patent application to an evaluator or potential licensee
- A seller sharing financial records and operational data with a prospective buyer during early negotiations
Practical note: Between 33% and 57% of US employees are bound by a unilateral NDA at any given time, often signed as part of an employment contract. In the UK, these frequently appear as standalone documents or as confidentiality clauses within employment agreements.
What a unilateral NDA does not do
A unilateral NDA protects the information shared by one party. However, if both sides plan to share private business information, a mutual NDA is usually a better choice because it protects both parties equally.
2.Mutual NDA:Two-way protection
A mutual agreement is a type of NDA also called a bilateral NDA, two-way NDA, or MNDA creates equal confidentiality obligations for both parties. Both sides share information, and both sides are legally bound to protect what they receive.
In practical terms, each party acts as both a disclosing party and a receiving party. The bilateral agreement contains mirror provisions: whatever protection Party A gets, Party B gets the same.
When to use a mutual NDA
This type of NDAs are commonly used in situations where both parties exchange confidential business information during discussions, partnerships, or transactions.
- Merger and acquisition discussions, where the seller and buyer both share financial records during due diligence
- Joint venture negotiations between two companies evaluating a shared project
- Technology partnerships where both sides share source code, or proprietary systems
- Strategic partnerships where both parties disclose client lists, pricing, or business roadmaps
- Any supplier relationship where processes on both sides are commercially sensitive
3.Multilateral NDA: three or more parties
A multilateral NDA sometimes called a three-way NDA, 3-party NDA, or multi-party NDA covers situations where three or more parties need to share confidential information simultaneously under a single legal document.
Instead of every combination of parties signing separate bilateral agreements, everyone signs one multilateral NDA. If there are four companies in a consortium, that means one document replaces what would otherwise be six separate bilateral contracts (every pair combination).
When multilateral NDAs make sense
- Projects where multiple companies collaborate on large infrastructure, defence, or research contracts
- Government procurement bids involving multiple private sector partners
- Software development projects with several technology vendors working alongside a shared client
- Joint research and development agreements across multiple institutions or companies
- Complex supply chain arrangements involving manufacturers, distributors, and logistics partners
Mutual NDA vs unilateral NDA: which one to ask for?
The type of NDA to request depends purely on the direction of information sharing not on what feels fairer. Asking for a mutual NDA when only one party is disclosing information adds legal complexity with no benefit.
What a Multilateral NDA Does Not Do
This type of NDA simplifies confidentiality between multiple parties, but it does not always make negotiations easier. Since all parties must agree to the same terms, discussions can become more time-consuming, and complex compared to separate bilateral NDAs.
Purpose-specific NDA agreements
Beyond the three structural types, NDAs are further tailored by their purpose. These are still unilateral, mutual, or multilateral at their core but they contain clauses built for specific contexts. Knowing which version to use prevents enforcement gaps that a generic template will not catch.
1. Employee NDA
This type of NDA protects confidential information that workers may access during their employment.
This may include:
- Customer records
- Pricing
- Product plans
- Internal processes
- Marketing strategies
- Financial information
- Intellectual property
The agreement should clearly explain what employees can and cannot do with confidential information.
2. Financial Information NDA
Companies may share financial information with investors, lenders, accountants, advisers, or potential buyers.
This type of NDA can define which contract data is confidential and how the receiving party may use it.
Protected information may include:
- Revenue
- Forecasts
- Profit margins
- Financial statements
- Customer data
- Business plans
- Transaction information
3. Inventor or Idea Submission NDA
Used by inventors, creators, or designers when presenting ideas, prototypes, product concepts, or creative work before a formal partnership. This type of NDA helps maintain confidentiality while discussions, evaluations, or business opportunities are being explored.
4. Independent Contractor NDA
Contractors and freelancers often need access to internal systems, project documents, customer data, or other business information.
An independent contractor NDA type helps define how that information can be accessed, stored, used, and shared.
Depending on the project, the wider contractor agreement may also address ownership of work or intellectual property.
Difference Unilateral, Mutual and Multilateral
Unilateral, mutual, and multilateral NDAs differ mainly in the number of parties involved and how confidentiality obligations are shared between them.
Factor | Unilateral | Mutual | Multilateral |
Parties Involved | 2 (one discloses) | 2 (both disclose) | 3 or more |
Information flow | One direction | Both directions | Multiple directions |
Who bears the obligation | Receiving party only | Both parties equally | All signing parties |
Typical use cases | Employment, contractor, vendor, investor pitch | M&A, joint ventures, partnerships | Multi-party research, complex supply chains |
What every NDA must include?
Regardless of which type of NDA agreement you use, the document must contain certain core elements to be legally enforceable. Missing even one of these can leave an NDA unenforceable meaning a party could share your confidential information and face no legal consequences.
- Confidential Information: Clearly specify what information is protected, such as pricing, customer data, source code, or technical details.
- Parties: Identify all parties involved, including any permitted third parties.
- Receiving Party Obligations: Define how confidential information can be used and protected.
- Exclusions: Clarify information that is already public, independently developed, or lawfully obtained elsewhere.
- Duration: State how long confidentiality obligations will remain in effect.
- Governing Law: Specify the applicable law and jurisdiction for disputes.
- Breach Remedies: Define available remedies, such as injunctive relief and financial damages.
What are Other Names for an NDA?
A non-disclosure agreement (NDA) is known by different names in different industries and business settings. Even though the terms vary, they are generally used for the same purpose keeping private information confidential.
Common Names for an NDA
- Confidentiality Agreement (CA)
A widely used term in business, HR, finance, and professional services when companies share private business or employee-related information. - Confidential Disclosure Agreement (CDA)
Commonly used in research, healthcare, biotech, and pharmaceutical industries when information is shared during studies, projects, or collaborations. - Proprietary Information Agreement (PIA)
Often used by technology companies and startups to protect product details, software information, business ideas, and internal processes. - Data Processing Agreement (DPA)
A separate but related agreement used when businesses handle or share personal data under privacy regulations like GDPR. It may be used alongside an NDA in some situations.
No matter what the agreement is called, the main purpose remains similar — defining what information should stay private, how it can be used, and the responsibilities of the involved parties.
What Happens When an NDA Is Broken
An NDA breach happens when protected information is disclosed or used in a way that violates the agreement.
The consequences depend on the NDA, the circumstances, and applicable law.
Possible outcomes may include:
- An order requiring further disclosure to stop
- Financial damages
- Contractual remedies
- Legal costs where applicable
- Termination of a business or employment relationship
Clear NDA terms can make it easier for both parties to understand their responsibilities before a problem occurs.
Best Practices to Manage NDAs
Signing an NDA is only one part of protecting confidential information. Businesses also need a reliable process for managing agreements after signature. Here are several practical NDA management practices.
- Monitor approvals and signatures.
- Keep language simple and specific.
- Clearly define confidential information.
- Limit access to confidential information.
- Use approved NDA templates whenever possible.
- Store signed NDAs in a centralized repository.
- Review templates as business requirements change.
- Track important dates and confidentiality periods.
- Select the NDA type based on how information will be shared.
- Train employees and contractors on confidentiality requirements.
These steps become more important as the number of agreements grows.
How Does CLM 365 Helps Automating NDAs
Managing NDAs through emails, spreadsheets, shared folders, and manual reminders can become difficult as contract volume increases.
CLM 365 provides a centralized environment for creating, reviewing, approving, storing, and tracking contracts.
Because CLM 365 works within the Microsoft ecosystem, teams can manage contract processes alongside tools such as SharePoint, Microsoft Teams, Outlook, Microsoft Copilot, Power BI, and Power Automate.
Organizations can use CLM 365 to:
- Standardize NDA templates
- Route agreements for approval
- Centralize signed NDAs
- Track important contract dates
- Monitor renewals and expirations
- Reduce manual follow-ups
- Improve visibility into contract status
- Maintain a more consistent contract process
This gives legal, procurement, sales, and business teams a clearer way to manage NDAs throughout their lifecycle.
Conclusion
As we have seen, different types of NDAs are designed for different business situations, from employee agreements to partnership and contractor relationships. Managing these agreements efficiently becomes increasingly important as businesses grow and handle larger volumes of confidential information.
CLM 365 helps organizations simplify NDA management with automated workflows, approval tracking, renewal management, and centralized contract handling all within the Microsoft ecosystem.
Explore how CLM 365 helps streamline NDA management with automated and AI-powered workflows across the entire contract lifecycle.
Frequently Asked Questions
When should companies use an NDA?
Companies commonly use NDAs when sharing confidential business information with employees, contractors, vendors, investors, clients, or business partners during projects, discussions, or collaborations.
How do companies track NDA expiry dates?
Many companies track NDA expiry dates using contract management software, spreadsheets, reminders, or centralized digital systems that notify teams before agreements expire or require renewal.
What’s the difference between an NDA and a contract?
An NDA is a specific type of contract focused on protecting confidential information, while a contract is a broader agreement that can cover payments, services, responsibilities, timelines, and other business terms.
What is the difference between an NDA and PIA?
An NDA (Non-Disclosure Agreement) is a general confidentiality agreement, while a PIA (Proprietary Information Agreement) is more focused on protecting company information such as product details, intellectual property, and internal business processes.
Does CLM 365 offer templates to manage NDA contracts?
Yes, CLM 365 offers customizable contract templates that help businesses create, manage, track, and organize NDA agreements more efficiently within a centralized contract management system.
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