Every startup advisor relationship should start with a written agreement. Not because you expect things to go wrong, but because clarity up front prevents confusion later.
Too many startup advisors operate on a handshake. The founder says "we would love your help," the advisor says "happy to," and neither side defines what that actually means. Six months later, expectations diverge. The advisor feels undervalued. The founder feels the advisor disappeared. Both are right, and neither is wrong. They just never agreed on the terms.
A startup advisor agreement solves this by putting the relationship on paper before it starts.
Why You Need a Formal Agreement
Advisor agreements protect both sides:
For the advisor, you get clarity on what is expected, how much time you are committing, and what you receive in return. If equity is involved, the agreement defines vesting schedules, trigger clauses, and what happens if the relationship ends early. For the founder, you get a committed advisor with defined deliverables instead of someone who vaguely promised to "be available," and you protect your cap table from ambiguity. For the company, a written agreement creates a legal record of the advisory relationship, which matters during fundraising, due diligence, and any future acquisition conversations.
What to Include in a Startup Advisor Agreement
Scope of Advisory Services
Be specific about what the advisor will do. "Provide general guidance" is not a scope. Instead, define the areas of focus: product strategy, fundraising introductions, go-to-market feedback, technical architecture review, or whatever the advisor's expertise covers.
If the advisor is working through a structured platform like Startup Science, the scope may be defined by the platform's session workflow, including context cards, task assignments, and progress tracking.
Time Commitment
This is where most advisory relationships break down. Mismatched expectations around time cause more advisor-founder friction than anything else. Define how many hours per month the advisor commits (typical range: 2 to 8 hours), whether meetings are scheduled or on-demand, and expected response time for email or messaging.
Understanding the standard advisor time commitment helps set realistic expectations on both sides.
Compensation and Equity
Most startup advisor agreements include equity compensation. According to The Holloway Guide to Equity Compensation, advisors typically receive 0.2% to 1.0% of the company, with idea-stage grants ranging from 0.25% to 1.0% and growth-stage grants from 0.15% to 0.60%, depending on stage, time commitment, and the advisor's experience level.1
Key equity terms to define:
Total equity grant. The percentage or number of shares.
Vesting schedule. According to The Holloway Guide to Equity Compensation, a common advisor vesting schedule is two years with a three-month cliff, which is much shorter than the standard one-year employee cliff.1
Acceleration clauses. What happens to unvested shares on acquisition or termination.
Exercise window. How long after the relationship ends can the advisor exercise options.
Some advisors work for cash compensation instead of or in addition to equity, particularly in later-stage companies. Define the amount, payment schedule, and invoicing process.
Confidentiality
Advisors will see sensitive information: financials, product roadmaps, customer data, fundraising strategy. A standard NDA clause should cover what constitutes confidential information, how long the confidentiality obligation lasts beyond the end of the engagement, and exceptions for publicly available information.
Intellectual Property
Any work product the advisor creates during the engagement (frameworks, documents, introductions) should be clearly assigned. Most agreements assign all advisor-created IP to the company.
Term and Termination
Define the duration (typically 12 to 24 months), whether it auto-renews or requires active renewal, how either party can end the relationship and with how much notice (typically 30 days written), and what happens to vested and unvested shares.
Conflict of Interest Disclosure
Advisors often work with multiple startups. The agreement should require disclosure of any relationships that could create a conflict, including competitors, investors with competing portfolio companies, or other advisory roles in the same space.
Common Mistakes to Avoid
Vesting without a defined scope. If the advisor's equity vests purely based on time without any performance expectations, you risk paying for a name on your advisory board who never shows up. Tie vesting to participation, even loosely.
Overly generous early grants. Giving 2% to an advisor who talks to you once a month is expensive equity. Use the standard ranges and adjust based on contribution. If you are unsure, start with a shorter term and revisit.
No termination clause. If the relationship is not working, both sides need a clean exit. Without a termination clause, unwinding the arrangement becomes messy, especially if equity has partially vested.
Skipping the agreement entirely. This is the most common mistake, and there is no excuse for it. Even if the advisor is a friend, put it in writing. Friendships survive clarity. They do not always survive ambiguity.
Using an Advisor Agreement Template
Several widely used templates exist, including the FAST Agreement (Founder/Advisor Standard Template) developed by the Founder Institute with law firm Wilson Sonsini Goodrich & Rosati, which is free to use and modify.2 These provide a solid starting point but should be reviewed by legal counsel, especially for equity-based arrangements.
If you are working within a structured mentorship and advisory platform, the platform may handle some of these mechanics for you, including session tracking, progress documentation, and impact measurement.
For advisors who are just getting started, the guide to becoming a startup mentor covers the path from informal mentorship to a formal advisory role where these agreements become standard.
Where Advisor Agreements Fit in the Bigger Picture
An advisor agreement is one piece of the broader startup lifecycle. Early-stage founders in the Vision and Product phases often bring on advisors informally. By the time a company reaches Go-to-Market and beyond, formalizing those relationships protects everyone and signals maturity to investors and future acquirers.
If you are an accelerator or incubator structuring a mentorship program, standardized advisor agreements across your cohort simplify administration and reduce legal risk for your founders.
Whether you are an advisor formalizing your first engagement or a founder bringing on your third, get the agreement right. The Startup Science advisor and mentor platform provides the structure to make the relationship work from day one.
Frequently Asked Questions
What is a startup advisor agreement?
A startup advisor agreement is a written contract that defines the terms of an advisory relationship between an experienced professional and a startup. It covers scope of services, time commitment, compensation (usually equity), confidentiality, intellectual property, and termination terms.
How much equity should a startup advisor receive?
According to The Holloway Guide to Equity Compensation, advisor grants typically fall in the 0.2% to 1.0% range, with idea-stage grants running higher (0.25% to 1.0%) and growth-stage grants lower (0.15% to 0.60%).1 Equity commonly vests over two years with a short (for example, three-month) cliff.
What is the FAST Agreement for startup advisors?
According to the Founder Institute, the FAST Agreement (Founder/Advisor Standard Template) is a free, standardized template developed with law firm Wilson Sonsini Goodrich & Rosati that lets founders and advisors set terms by checking a few boxes; it scales equity based on company stage (idea, startup, growth) and advisor engagement level (standard, strategic, expert).2 It is a good starting point but should be reviewed by legal counsel for your specific situation.
Should startup advisors sign NDAs?
Yes. A confidentiality clause should be part of every advisor agreement since advisors will see sensitive information including financials, product roadmaps, and fundraising strategy. The agreement should specify how long the confidentiality obligation extends beyond the end of the advisory relationship.
What happens to advisor equity if the relationship ends early?
This depends on the vesting schedule defined in the agreement. Typically, any vested equity is retained by the advisor and any unvested equity is forfeited. The Holloway Guide to Equity Compensation notes that advisor grants typically feature a longer exercise window post-termination and usually include single-trigger acceleration on an acquisition.1
Sources
- Andy Sparks et al., The Holloway Guide to Equity Compensation — Typical Startup Advisor Equity Levels, 2022. holloway.com
- Founder Institute, FAST Agreement (Founder / Advisor Standard Template), 2024. fi.co
