Growth Advisor for Pre-PMF and Bootstrapped Founders
You are pre-product-market-fit, bootstrapped, or running with a tiny team. You do not need a fractional operator embedded 20 hours a week. You need a senior brain on call 2 to 4 hours a month to pressure-test your growth bets before you burn cash. That is what this is.
What a fractional growth advisor actually does
Most founders do not need a full-time growth hire yet. They need someone senior who shows up two or three days a week, owns the number, and ships. That is the job of a fractional growth advisor. I am Yaniv Goldenberg, a Fractional CMO/CGO. I take you from traffic to revenue. Not a deck. Not a strategy memo you file and forget. A funnel that converts and a dashboard that proves it.
Here is the difference between a fractional growth advisor and the agency or coach you almost hired. An agency runs ads against a brief and reports on clicks. A coach asks you questions and hands the work back to you. I sit inside your business, read your data, find the one or two constraints holding back revenue, and fix them with you. I have managed $100M+ in budgets, so I know where money leaks and where it compounds. The work is operational, not advisory theater.
My first two weeks are diagnosis. I instrument the funnel end to end: acquisition source, activation rate, the step where signups stall, and the moment money actually lands. Pre-PMF and bootstrapped founders almost always misread their own funnel. They think the problem is traffic when the problem is the third onboarding screen. A fractional growth advisor earns the engagement in this phase by replacing your guesses with a measured map of where revenue is lost.
Then I attack the constraint. One lever at a time, measured against a baseline. When I drove Riverside to +337% MRR, it was not a clever campaign. It was a sequence of focused fixes to acquisition, activation, and pricing, each one shipped, measured, and kept or killed on the data. That is the operating rhythm you get: hypothesis, ship, measure, decide. No vanity metrics. Revenue or it did not happen.
I work best with two kinds of founder. The pre-PMF team that has early signal and needs to find the repeatable motion before the runway runs out. And the bootstrapped operator who is profitable, has no outside money to waste, and wants every dollar of spend to return more than a dollar. In both cases a fractional growth advisor gives you a senior operator at a fraction of a full-time salary, with none of the ramp time. I plug into your stack, your data, and your team, and I produce inside the first month.
You also keep the system after I leave. I do not build dependence. I build the funnel, the tracking, the playbooks, and the reporting cadence so your team can run it without me. The point of hiring a fractional growth advisor is to install a revenue engine and the discipline to operate it, not to rent a freelancer who disappears with the institutional knowledge. If you want a closer look at how growth roles are scoped and priced, the Harvard Business Review archive on operating discipline is worth your time before we talk.
If you are a founder who measures progress in revenue and not in activity, we will get along. Bring me your numbers, your funnel, and your honest read on what is broken. I will bring a plan you can ship this quarter and the operating cadence to keep shipping after. Book a call and we will find your constraint.
Frequently asked questions
What does a fractional growth advisor cost compared to a full-time growth hire?
A full-time senior growth lead in most markets runs well into six figures plus equity, benefits, and three to six months of ramp. A fractional growth advisor gives you the same seniority for two or three days a week, with output in the first month. You pay for focused time on your constraint, not for headcount overhead, and you can scale the engagement up or down as revenue dictates.
How is this different from hiring a marketing agency?
An agency runs ads against your brief and reports on clicks and impressions. I own the number from traffic to revenue. I instrument your whole funnel, find where money actually leaks, and fix activation, pricing, and onboarding, not just the top of funnel. Agencies optimize the channel they sell. A fractional growth advisor optimizes your revenue, which often means the fix is nowhere near the ad account.
Do you work with pre-PMF startups that do not have steady revenue yet?
Yes, and it is half of who I work with. Pre-PMF founders need to find the repeatable motion before runway runs out. I instrument early signal, isolate the activation step that is killing conversion, and run tight experiments to find what actually retains and pays. I do not pour budget into acquisition before the funnel holds water. That is how bootstrapped and early teams waste their last six months.
What happens in the first month of an engagement?
The first two weeks are diagnosis. I instrument your funnel end to end: acquisition source, activation rate, the step where signups stall, and where revenue lands. By week three I have a measured map of where money is lost and a ranked list of constraints. Then I ship the first fix against a baseline. You get a working hypothesis, a live experiment, and a revenue read inside thirty days, not a strategy deck.
Will my team be able to run growth after the engagement ends?
That is the goal. I build the funnel, the tracking, the playbooks, and the reporting cadence so your team operates the engine without me. I do not hoard the institutional knowledge or create dependence. A good fractional growth advisor installs a system and the discipline to run it, then hands it over clean. You should come out of the engagement with a measurable revenue motion your team owns.
When you need this vs an operator
You need a growth advisor (this page) if:
- You are pre-PMF or under $50K MRR and still searching for the wedge.
- You have under 10 people and no full-time growth or marketing hire yet.
- Your weekly growth workload is under 8 hours and most of it is decision-making, not execution.
- You are bootstrapped or board-funded and cannot justify $8K-$18K/mo for an embedded operator.
- You already have a junior marketer or founder running execution and they need adult supervision, not replacement.
You need an operator (not this page) if any of these are true:
- You are post-PMF with $1M+ ARR and the bottleneck is execution speed, not strategy clarity.
- Your weekly growth load is over 15 hours and nobody senior is owning the number.
- You need someone to hire and manage a team, run paid acquisition, or rebuild attribution end to end.
If you cross PMF or your weekly growth load is over 15 hours, move to operator tier: /fractional-head-of-growth/ (B2B SaaS focus) or /fractional-cmo/ (broader marketing leadership).
What I do as a growth advisor
- Monthly growth strategy review. 90-minute working session. We look at last month's metrics, this month's bets, and the 2-3 decisions you are about to make. I tell you which one is wrong and why.
- Growth experiment design. I write the hypothesis, success metric, sample size, and kill criteria for every experiment you run that month. You ship them. We review what they actually proved.
- Growth hire selection. I sit in on final-round interviews for your first 1-2 growth or marketing hires. I write a one-page memo on each candidate with the trade-offs. You decide.
- Funnel diagnosis. Once per quarter I dig into your analytics (Mixpanel, GA4, HubSpot, whatever you run) and write a memo on where the funnel is leaking and what is worth fixing in the next 90 days.
- Board readout prep. If you have a board, I draft your growth slides 48 hours before the meeting. Honest numbers, framed cleanly, no spin. You edit and present.
- Async Slack/Loom on demand. Within reason. I respond within 24 hours on weekdays.
- First-90-days plan for new growth hires. When you hire a head of growth or first marketer, I write their 30-60-90 with you.
Engagement model and pricing
| Tier | Format | Hours | Price |
|---|---|---|---|
| A. Monthly retainer | 2-4 hrs/month, recurring | 2-4 hrs | From $3,000/mo |
| B. Half-day intensive | One-shot project, async followup for 14 days | 4-5 hrs | From $3,500 |
| C. Equity warrant | Same scope as Tier A, paid in equity | 2-4 hrs/month | 0.25-0.5% over 2-year vest, 6-month cliff |
Equity-only terms (Tier C) only apply if you have closed pre-seed or seed, your cap table can absorb 0.25-0.5%, we sign a standard advisor agreement (FAST or YC SAFE-style advisor grant), and you commit to a 12-month minimum.
Who I work with
Closed pre-seed or seed, 3-12 person teams, under $50K MRR.
Doing $20K-$200K MRR who do not want a fractional retainer but need a brain on the bets.
In B2B SaaS, AI infrastructure, or developer tools who have hired a junior marketer.
Placing me as a portfolio advisor across 1 company on the equity-warrant structure.
I do not work with: agencies, e-commerce DTC under $5M GMV, idea-stage / pre-incorporation, or anyone who needs the advisor to also be the doer.
What I do NOT do as an advisor
- I do not run your ads.
- I do not write your copy.
- I do not manage your team.
- I do not attend daily standups or weekly all-hands.
- I do not build your attribution stack (operator-tier work, see /fractional-head-of-growth/).
- I do not interview every candidate, only final round.
- I do not respond to Slack pings outside business hours.
- I do not take equity-only if you have not closed funding.
Proof
I led growth at cnvrg.io in the run-up to its acquisition by Intel in November 2020 (TechCrunch, Globes).
I led acquisition at Elementor through its growth from roughly $200K to over $20M ARR (2018-2020). Elementor raised $15M Series A from Lightspeed in 2020 (TechCrunch) and subsequently raised additional capital from Lightspeed (Globes).
FAQ
How much does a growth advisor actually cost?
Cash retainer starts at $3,000/mo for 2 hours of synchronous work plus async response. Half-day intensives start at $3,500. Equity is 0.25-0.5% over 2-year vest with a 6-month cliff, only if you have closed funding.
How long is the minimum commitment?
Cash retainer is month-to-month after the first 3 months. Equity is a 12-month minimum.
Can you take equity only?
Yes, if you have closed pre-seed or seed. No, if you are pre-incorporation or idea-stage.
How many hours per week do you actually work?
2 to 4 hours per month, not per week. That is the entire point of advisor tier.
Do you work with companies outside Israel?
Yes. About half my advisor work is Israel-based, half is US and EU.
How does this integrate with my existing team?
I work with your founder directly, plus the most senior marketer or growth person. The interface is the monthly call plus async Loom.
When should I upgrade from advisor to operator?
When your weekly growth load crosses 15 hours, when you cross PMF, or when you have closed Series A. See /fractional-head-of-growth/.
Can I get a reference call?
Yes, after our intro call and once we agree this is a fit.
Let's turn this into measurable revenue
Book a 15-min call. I will tell you whether this is your next move, or whether your money is better spent elsewhere.