To sign an NDA by name and title, sign on the signature line, print your full legal name below it, and add your title if you’re signing on behalf of a company. When you represent an organization, the company’s full legal name goes above the signature line, followed by “By:” before your signature, with your printed name and title underneath. Get any of those pieces wrong and the confidentiality obligations can shift from the company onto you personally.
What Belongs in the Signature Block
The signature block is the part of the NDA that connects a real person, and sometimes a real company, to the promises in the document. A complete block contains five things:
- Your handwritten or electronic signature on the signature line, which signals your intent to be bound.
- Your full legal name, printed legibly beneath the signature.
- Your title, if you’re signing as a representative rather than as an individual.
- The full legal name of the company you represent, if applicable.
- The date you actually sign. Some NDAs also specify a separate “effective date” in the body, so the signature date and the date obligations begin aren’t always the same.
NDAs don’t need to be notarized or witnessed to be enforceable. They’re standard contracts, and standard U.S. contracts require only mutual agreement and signatures.
Signing as an Individual
If you’re binding only yourself, the process is short. Sign on the line designated for your party. Below the signature, print your full legal name exactly as it appears in the body of the agreement. If the NDA names you as “Jonathan R. Smith,” don’t sign as “Jon Smith.” Fill in the date. You don’t need a title, an entity name, or any representative language.
Signing on Behalf of a Company
Signing for a company is where most mistakes happen, and the stakes are higher. A poorly built signature block can leave the company unbound and you personally on the hook. The block needs to make two things unmistakably clear: which entity is entering the agreement, and that you’re signing as its authorized representative.
The standard format puts the entity’s full legal name first, then the word “By:” before the signature line, then your printed name and title:
ACME TECHNOLOGIES, INC.
By: ___________________________
Name: Jane Doe
Title: Chief Executive Officer
The “By:” line is doing real work. It signals that Jane Doe isn’t entering the NDA as an individual; she’s executing it on behalf of ACME Technologies, Inc. Without that framing, a court could read her signature as a personal commitment.
Matching Your Title to the Entity Type
The title you use should reflect the authority you actually hold under the company’s governing documents.
- In a corporation, use an officer title such as President, CEO, or Secretary, and it should reflect authority granted by the board.
- In an LLC, the title is typically Member, Manager, or Managing Member, depending on the operating agreement.
- In a partnership, identify the signer as General Partner. In a limited partnership or LLP, only general partners have authority to bind the entity.
A title that doesn’t align with the company’s governing documents creates an opening for the other side to challenge enforceability later.
Getting the Entity Name Right
The entity name should match the legal name on file with the state where the business was formed — the name on the articles of incorporation, articles of organization, or partnership registration. A trade name or “doing business as” name on its own creates ambiguity about who owes the confidentiality obligations.
If your company operates under a DBA, include both: “Acme Technologies, Inc., doing business as Acme Tech.” If an NDA has already been signed with a name mismatch, a short amendment or an initialed correction can fix it as long as both parties agree on the intent. It’s easier to get it right the first time than to argue later that a naming error was harmless.
Why a Wrong Signature Block Makes You Personally Liable
Courts look at what the document actually says, not what you meant. The most common trap: signing your name without including the company name, the “By:” line, or your title. On its face, the document now reads as a personal commitment. Even if everyone at the table understood you were signing for the company, a bare signature without representative language gives the other party ammunition to argue you’re individually bound.
The same risk applies when you sign on behalf of an entity that doesn’t legally exist, such as a trade name that was never formally registered. Courts in that situation tend to treat the obligation as belonging to the individual who signed, since there’s no real entity to absorb it.
Three habits keep you out of that position: always include the entity’s full legal name above your signature, always use the “By:” format, and always add your title. If any of those elements are missing from the signature block the other side prepared, ask for a corrected version before signing.
Confirming the Other Signer Has Authority
If you’re the one receiving a signed NDA from someone claiming to represent a company, confirm they can actually bind that entity. A signature from an unauthorized employee can leave you with an agreement the company later disavows.
Authority usually flows from one of two sources. Formal authority comes through board resolutions, operating agreements, or bylaws that name which officers or members can execute contracts. For a significant NDA with a large company, asking for a board resolution or a certificate of authority is reasonable and not unusual.
The second source is sometimes called “power of position.” Someone with a recognized title like CEO, President, or General Counsel is generally understood to have authority to sign business agreements. Courts often hold companies to contracts signed by people in those roles, even if internal rules technically limited that authority, because the title itself created a reasonable expectation. Where this gets risky is with mid-level employees. A marketing director or project manager might hand you a signed NDA without ever having been authorized to commit the company. If the deal matters, verify authority before exchanging confidential information.
Electronic Signatures and Counterparts
You don’t need to print, sign in ink, and scan an NDA for it to be enforceable. Under federal law, a signature or contract cannot be denied legal effect solely because it’s in electronic form, and a contract cannot be thrown out simply because an electronic signature was used to form it.1Office of the Law Revision Counsel. 15 USC 7001 – General Rule of Validity Clicking “I agree,” typing your name into a signature field, or using an e-signature platform all produce legally binding signatures for NDA purposes. Most states have adopted parallel electronic signature laws. If the other party insists on wet ink, that’s a preference rather than a legal requirement.
NDAs often include a “counterparts” clause when the parties aren’t in the same room. It means each side can sign a separate copy of the agreement, and the individually signed copies together form one binding document. You can sign your copy electronically or in ink, send it over, and receive their separately signed copy in return. If you don’t see a counterparts clause and you won’t be signing the same document in person, ask for one to be added.
Keep the Fully Executed Copy
Once every party has signed, make sure you actually have a copy showing all signatures. Without it, proving the agreement exists and what it says becomes needlessly difficult if a dispute comes up. If you signed through an e-signature platform, download your own copy rather than relying on continued access to someone else’s account.