IP Assignment Agreements for Startups: Why Every Contributor Needs a CIIAA

A CIIAA (Confidential Information and Invention Assignment Agreement) assigns all intellectual property created in the scope of work to the company. Without one, each contributor may have a legal claim to the IP they created. This is a deal-killer in fundraising and acquisitions — and it's entirely preventable.

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Why IP Assignment Matters

Your startup's value is its technology, brand, and proprietary knowledge. But ownership of intellectual property doesn't automatically transfer to the company just because someone was paid to create it.

Under U.S. copyright law, there's an important distinction:

• Employees: Work created by employees within the scope of employment is generally "work for hire" — owned by the employer automatically. But this only applies to actual employees, and the scope can be disputed.
• Contractors: Work created by independent contractors is owned by the contractor by default, unless there's a written agreement assigning the IP to the company. A contract that says "work for hire" alone may not be sufficient — you need an explicit assignment clause.
• Founders: Pre-incorporation work (the prototype, the initial codebase, the brand) is owned by the individuals who created it. It must be formally assigned to the company after incorporation.

Who Needs to Sign

Every person who touches your intellectual property needs a signed IP assignment agreement:

Founders

Each co-founder should sign a CIIAA at or around incorporation. This is typically bundled with the Stock Purchase Agreement. It covers:

• Assignment of all IP created in connection with the company
• Assignment of pre-existing IP contributed to the company (listed in an exhibit)
• Confidentiality obligations
• Non-solicitation of employees and customers (where enforceable)

Employees

Every employee signs a CIIAA on or before their first day of work. No exceptions. This is standard practice and not negotiable — any experienced hire will expect it.

Independent Contractors

Every contractor needs an agreement that includes an explicit IP assignment clause. This is separate from (or included in) the Independent Contractor Agreement.

Critical point: A standard contractor agreement that says "work product is work for hire" may not be legally sufficient. Under copyright law, work for hire only applies to specific categories of works in the contractor context. You need a belt and suspenders approach: declare it work for hire AND include an express assignment of all IP rights.

Advisors

If advisors have access to confidential information or contribute to product development, they should sign an agreement that includes confidentiality and IP assignment provisions.

What a Good CIIAA Covers

Invention Assignment

All inventions, discoveries, improvements, and works of authorship created during employment or engagement that relate to the company's business are assigned to the company. This should include:

• Software code
• Product designs
• Algorithms and processes
• Trademarks and branding
• Trade secrets
• Any other intellectual property

Prior Inventions Disclosure

The agreement should include an exhibit where the signer lists any pre-existing inventions or IP they want to exclude from the assignment. If the exhibit is blank, everything created during the engagement belongs to the company.

This is important for engineers who may have side projects or prior work they want to protect.

Confidential Information

Defines what constitutes confidential information and imposes obligations to protect it during and after the engagement. Typically survives termination indefinitely (or for a defined period).

Non-Compete and Non-Solicitation

Non-competes are increasingly unenforceable (California bans them entirely, and the FTC has moved to restrict them federally). Non-solicitation provisions (preventing the hire of company employees and solicitation of customers for a defined period) are more commonly enforceable and still valuable.

Moral Rights Waiver

In some jurisdictions, creators have "moral rights" that can't be transferred. A waiver (to the extent permitted by law) prevents future claims based on attribution or integrity of the work.

Common IP Assignment Mistakes

The Contractor Who Built Your MVP

This is the single most common IP issue we see. A founder hires a freelance developer to build the initial product. There's no written contract, or the contract doesn't include an IP assignment. The developer technically owns the code.

The fix: Get a retroactive IP assignment signed. In most cases, contractors will sign. If they won't, you may need to negotiate (and potentially pay for) the assignment. The longer you wait, the more leverage they have.

Open Source Contamination

Using copyleft-licensed open source code (GPL, AGPL) in your proprietary product can create obligations to release your own source code under the same license. This is a recurring due diligence issue.

Best practice: Maintain an open source policy. Know what licenses are in your codebase. Use permissive licenses (MIT, Apache 2.0, BSD) freely. Flag copyleft licenses for legal review before incorporation into your product.

Pre-Incorporation IP Never Assigned

The founder built a prototype before the company existed. After incorporation, they assume the company owns it because... they're the founder. Legally, they still own it personally until it's formally assigned.

The fix: Include pre-existing IP in the founder's CIIAA or execute a separate IP Assignment Agreement. List the specific IP being assigned and have it approved by the board.

International Contributors Without Assignments

IP laws vary by jurisdiction. A developer in another country who contributes code may have different default ownership rights. Ensure every international contributor has a signed agreement governed by a jurisdiction you understand (typically Delaware or the state of your incorporation).

The Due Diligence Impact

Investors and acquirers will specifically ask for:

• A list of all founders, employees, and contractors
• Signed CIIAAs for every person on that list
• Documentation of any pre-existing IP contributed to the company
• A description of any gaps or exceptions

Gaps in IP assignment are one of the top 3 due diligence issues that delay or kill deals. They signal either sloppy legal practices or, worse, genuine ownership disputes waiting to surface.

Bottom Line

IP assignment isn't a nice-to-have — it's the legal foundation of your company's value. Every person who contributes to your technology, content, or brand needs a signed agreement before they start (or, for founders, at incorporation). The cost of getting these agreements in place is trivial. The cost of not having them can be existential.

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Need help with IP assignments or a CIIAA audit? Book a free call — IP protection is built into every Flux engagement.