Founder guide

NDAs for Startups & Founders: When to Use One (and When Not To)

When a startup actually needs an NDA, why most VCs won't sign one at pitch stage, and which template fits co-founders, contractors and early partners.

By Richard Wood, Founder7 min readUpdated 31 May 2026Last reviewed 31 May 2026startupsinvestorsNDA basicstemplates

Founders reach for NDAs instinctively, but they help in some situations and actively hurt in others. Here is when to use one and when to skip it.

This is general information, not legal advice

NDASafe is a document preparation service, not a law firm. Our templates are legally reviewed against applicable UK law at the point of release, but every situation is different. Where significant value, unusual risk or a cross-border element is involved, take independent legal advice before you sign.

When an NDA helps

  • Sharing detailed materials with an angel or corporate investor who is willing to sign — use the Investor NDA.
  • Bringing on a contractor or agency who will see your roadmap or code — use the Freelancer NDA.
  • Early partnership or supplier talks where both sides open up — use a Mutual NDA.

When to skip it

Do not lead a cold VC pitch with an NDA — most will decline, and insisting signals inexperience. Protect the genuinely secret part (a specific algorithm, unit economics) by simply not putting it in the first deck. An idea alone is rarely the moat; execution is.

Beyond the NDA

Once you incorporate and raise, a founders' agreement, shareholders' agreement and proper IP assignment matter more than any NDA. The NDA covers the exploratory phase before those exist.

Investor NDA for the rounds where they'll sign

Pitch-stage Investor NDA with non-circumvention (12-month default) and 12-month no-poach. £29, or £79 for all eight including the Mutual and Freelancer NDAs founders use most.

Frequently asked questions

Will investors sign an NDA to see my pitch?

Most established VCs decline NDAs at pitch stage — they see too many similar deals to risk being conflicted out. Angels, family offices and corporate investors are more often willing. NDASafe's Investor NDA is built for the cases where they will sign, with non-circumvention and no-poach terms.

Do co-founders need an NDA?

A mutual NDA can cover early co-founder conversations, but founders are usually better served by a founders' agreement and shareholders' agreement once things are real. Use a mutual NDA for the exploratory phase before those are in place.

Should I make contractors sign an NDA?

Yes — anyone who sees inside your business should. Use the Freelancer NDA, which is IR35-aware and assigns project IP, rather than an employee NDA, to keep the relationship clearly non-employment.

Templates mentioned in this guide