Most marketplace growth strategy fixes supply. Thin demand is what kills you.
Underboss Media builds consumer marketplaces an organic demand engine they own: short-form formats on the marketplace's own accounts pointed at the side that is thin, paid budget behind what organic proves, and a written playbook your team runs. The flagship receipt, a Series A consumer gaming marketplace, produced 50M organic views in five months at $0 paid.
Demand is the side that decides whether a marketplace works. We build the organic engine that generates it, on your own channels, and hand your team the rules for running it going forward, long after the engagement itself ends.
If you have supply waiting on demand that never quite shows up, send us the link and we will tell you why.
Two minutes. No call. No numbers.A two-sided consumer marketplace in gaming, Series A, with supply live and waiting on demand. We ran founder-led video and organic distribution across YouTube Shorts, TikTok and Instagram Reels for five months, on the marketplace's own accounts, and read the weekly board metric with the founders. No paid demand generation at any point. Demand is the side a marketplace is short of once supply is live, and branded search rising up to 10x during the run is what demand looks like when it arrives by name instead of through an ad. Fifty million organic views over five months, and branded search held near 2x after the engagement ended.
One receipt, opened. The client name stays in the file room, which is exactly why you should judge us on your own marketplace instead.
Read it back as a marketplace.
- 01Demand you generate, instead of demand you rent from an ad platform by the click.
- 02Branded search that keeps sending users to the marketplace after the spend stops.
- 03An engine the company owns, not a service that goes home with the agency.
“Supply is rarely the problem. A marketplace with no demand engine is just a warehouse with a login page.”
“I ran the account behind the 50M receipt on this page myself for the full five months, watching both sides of the marketplace daily. I write your teardown myself, and I will tell you straight whether an owned engine fits your category.”
Verify on LinkedIn →From publishing in month one to owned by month twelve.
- Month 1
Live and publishing
The engine ships across the marketplace's channels, on your own accounts, pointed at the side you are short of. Organic growth for marketplaces starts there.
Output: Live publishing cadence, organic and ads
- Months 2 to 9
Compound and train
Volume climbs, formats get killed and replaced on the signup and transaction numbers, and the person you chose on your side learns the playbook by running live parts of it.
Output: Branded search climbing, both sides growing
- Months 10 to 12
They run it, you own it
Your team takes the wheel while we watch. The build is finished when demand holds through a change of operator, not when the invoice stops.
Output: Engine handed off, still compounding
A retainer vs an owned engine, for marketplaces
Updated September 2026- Supply-side churn when demand stalls
A retainerSellers leave when buyers stop showing up, and the ad budget was the only thing bringing buyers.
Your marketplace, with usDemand keeps arriving from content the marketplace owns, so supply has a reason to stay.
- Cost per first transaction
A retainerBought in the auction, rising every quarter.
Your marketplace, with usFalls as branded search grows, because the buyer arrived already looking for you.
- Repeat transaction rate
A retainerEach return visit is bought again.
Your marketplace, with usThe audience is yours, so the second transaction does not need a second ad.
- Who owns the buyer list
A retainerThe agency's accounts and the platform's pixel.
Your marketplace, with usYour accounts, your audience, your data, from day one.
| Dimension | A retainer | Your marketplace, with us |
|---|---|---|
| Supply-side churn when demand stalls | Sellers leave when buyers stop showing up, and the ad budget was the only thing bringing buyers. | Demand keeps arriving from content the marketplace owns, so supply has a reason to stay. |
| Cost per first transaction | Bought in the auction, rising every quarter. | Falls as branded search grows, because the buyer arrived already looking for you. |
| Repeat transaction rate | Each return visit is bought again. | The audience is yours, so the second transaction does not need a second ad. |
| Who owns the buyer list | The agency's accounts and the platform's pixel. | Your accounts, your audience, your data, from day one. |
Before you ask.
We name one KPI we control in your first month. If it is not climbing by month six, the next month is free. For a marketplace that KPI is usually branded search on the side you are short of, the demand the engine creates rather than the liquidity you already have.
The engine generates demand. Where it gets pointed, supply side or demand side, is scoped in the teardown before anything gets built, based on which side is actually thin in your marketplace.
Paid rents attention that ends with the budget. This builds an audience that is still there next quarter, on the marketplace's own accounts, still sending buyers in without a fresh spend every time.
Yes, on your accounts from day one. There is no handover, because nothing was ever in our name to begin with, at any point across the whole engagement, start to finish.
Nothing. Send the marketplace and your channels, and in three days you get a read on which side is actually thin and what we would build first to fix it. Yours either way. No call, nothing to prepare and nothing to sign.
If your marketplace is not the right fit for an organic demand engine, you hear that plainly in the teardown, not months into a retainer.
Organic Growth or we work for free.
We name one KPI we control for your company in your first month. If it is not climbing by month six, the next month is free.
It runs until it climbsHowever long that takes. There is no fixed window after which the invoices start again.
You read it off your own numbersYour analytics and the platforms' own reporting. Nothing of ours in the middle.
Send us the marketplace. We send back the teardown.
A link to the marketplace and your channels. In three days you get which side of it demand is actually short on, and what we would build first. Free, and yours whether we work together or not.
Two minutes. No call. No numbers.