The Invisible Ecosystem: Who Actually Builds on Polymarket?

As of March 2026, according to Dune, there are at least 200 projects that claim to be building on or around Polymarket. This report covers 114, selected on the basis of having a verifiable footprint, on-chain activity, identifiable team, or public presence. Most have a website, some have an X account, and a handful have users. The gap between “building on Polymarket” and “actually mattering to Polymarket” could swallow a small continent.

The reason why this is important is that prediction markets are supposed to be the next financial primitive. By the end of 2025, prediction markets had crossed $65 billion in cumulative trading volume.

Capital showed up. Attention showed up. The natural next question is whether anyone building on top of this infrastructure, specifically Polymarket, has captured either of those things.

The short answer: almost nobody raised money, almost nobody has visible founders, and volume concentrates so heavily at the top that the ecosystem looks less like a marketplace and more like a single toll booth with a long queue of empty storefronts behind it.

The Economics of Building on Polymarket

Before looking at who built what, it helps to understand what building on Polymarket actually pays. The platform launched its Builders Program with $2.5 million in grants and a weekly USDC reward pool distributed based on each builder’s share of total volume. Polymarket has never publicly disclosed the exact formula.

PolyTrack, an analytics and guide site for Polymarket builders, estimates the rate at 0.5% to 1% of attributed volume. The range is speculative, but it is the best public guess available as it is back-calculated from Based’s reported revenue figures.

According to PolyTrack, Based is the only builder to have publicly disclosed its economics. They reported $1 million in annualized recurring revenue from Polymarket builder rewards. Given that a platform ranked 9th by total volume generates such revenue, the financial outlook appears far more daunting for the roughly 100 other builders operating with only a fraction of Based’s activity.

There is also a measurement problem. In December 2025, Paradigm published research showing that most Polymarket volume dashboards double-count every trade. The error comes from summing both maker and taker OrderFilled events for the same transaction, inflating reported figures by roughly 2x. A dashboard showing $8 billion in February volume may actually represent $3.5 billion in one-sided flow.

For transparency, the figures in this report reflect on-chain data as reported by Dune and the Polymarket leaderboard, which Paradigm has shown overstate actual one-sided flow by ~2x. Therefore, absolute dollar figures should be read with that caveat in mind.

Where the Volume Lives

Even with the double-counting caveat, the market structure shows an extreme level of volume inequality.

Across the top 50 builders by cumulative volume, the Gini coefficient sits at 0.83. The Gini coefficient is a measure of inequality that runs from 0 to 1, where 0 means everyone has the same share and 1 means one entity has everything. A score of 0.83 means the volume distribution among Polymarket builders is closer to “one player takes all” than to anything resembling a competitive marketplace. To put 0.83 in context: the US stock market’s top 10 companies by market cap have a Gini of roughly 0.65. Hence, the Polymarket builder ecosystem is more concentrated than the S&P 500 and essentially functions as a monopoly.

Additionally, six builders control 81% of all lifetime volume ever processed through third-party interfaces, roughly $1.31 billion out of $1.6 billion. Betmoar alone accounts for $817 million of that, which is more than the other 49 builders in the top 50 combined and 6.1 times the second-largest builder, PolyCop, at $134 million. PolyTraderPro, Stand.trade, Polymtrade, and Polygun, round out the top six, each processing between $63 million and $108 million. After those six, the cliff is steep because the median builder in the top 50 has processed only $4.7 million across its entire lifetime.

In Q1 2026 alone:

• 80% of all builders processed less than $1 million for the entire quarter
• A third never crossed $10,000
• 90% of all quarterly volume concentrated in just 16 platforms
• The median builder processed roughly $20,000 for the entire quarter

What the leaderboard really describes is a handful of real businesses surrounded by a constellation of experiments, side projects, and products that have not yet found their users.

Most of the Money Went to Companies That Aren’t Really Polymarket Builders

Of 114 projects, roughly two dozen raised some form of external capital, but most of that money went to companies that are not really Polymarket builders.

Jupiter raised $35 million from ParaFi Capital in February 2026. They run $300 million in trailing twelve-month revenue as Solana’s dominant DEX. Prediction markets are a tab in their interface. Calling Jupiter a Polymarket builder is like calling Apple a podcast company because the iPhone comes with a Podcasts app.

The same applies to:

• Relayer ($17 million Series B, Archetype and Union Square Ventures, February 2026)
• Rainbow ($18 million Series A, Seven Seven Six, October 2021)
• Based ($11.5 million Series A, Pantera Capital, February 2026)
• Pi Squared ($12.5 million seed, Polychain Capital, July 2024)
• PINAI ($10 million pre-seed, Hack VC and a16z CSX, September 2024)

If we strip those out, the native funding picture is quite bleak.

• FiammaLabs raised $4 million for ZK infrastructure with a social trading layer
• DoubleUp raised $4 million from Karatage and Mysten Labs at a $40 million valuation.
• UnifAI raised $7 million from HashKey, though their core product is AI agent infrastructure
• Bullpen closed an undisclosed seed from 6th Man Ventures with Ansem (Zion Thomas) as co-founder
• Polycule raised $560,000 from AllianceDAO in June 2025, launched a token that peaked at $57 million market cap, got hacked for $230,000 in January 2026, and went offline.
• Semantic Layer raised $5 million across two rounds (Figment Capital, Greenfield Capital) and is the only well-funded builder whose entire product revolves around Polymarket.

A handful of others received undisclosed backing from accelerators and funds: TradeFox (AllianceDAO, CMT Digital), Tailgate (Alliance accelerator), mass (Jump Crypto), Synthesis (Collab Currency, Colosseum), and Predex ($500,000 pre-seed from Penrose Tech). 

So roughly $20 million in native venture funding with disclosed amounts, spread across a handful of projects, orbiting a platform that processes $8 billion in a single month.

How Visible Are These Builders?

We scored every project on three dimensions: how active the founders are, how active the company is, and whether the project has generated any earned media (that is, has anyone outside the team itself written about it?). All on a 0-to-5 scale, where 0 is invisible, and 5 is Michael Saylor/Metamask-level recognition. These scores measure consumer-facing narrative visibility.

• Only 25 of 114 builders scored above 1 for founder presence
• The majority, about 77%, scored above a 1 on company activity
• Only 18 scored above 1 for earned media

Betmoar, the volume leader, has zero founder visibility and minimal media. Kiyotaka, an AI analytics tool with 24,500 followers and regular feature updates has no identifiable founder.

On the other hand, CarbonCopy’s co-founders, Ryan Morrissey and Evan Wynne, have X accounts but do not post consistently. And the company account has only 106 posts since November.

Insiders.bot, run by Ryan Chi, appeared on KuCoin’s content syndication service after Chi pledged support for Polycule hack victims.

Bankr, whose founder goes by Deployer, earned a piece in Forbes (November 2025).

Those instances represent nearly the entire earned media output of a 114-company ecosystem.

The gap is not between projects that invested in narrative and failed, and projects that succeeded without it. The gap is between “the three or four projects that have any media presence at all” and “the 110 that have none.” When you plot the full ecosystem on two axes, visibility against volume, the shape of that gap becomes even more obvious.

The Corner of the Chart That Should Worry Every Polymarket Builder

In every other vertical, usage and recognition travel together. Companies and projects with the most volume, TVL, etc., have the most recognizable founders, and the chains processing the most transactions are the ones whose teams publish research, show up on podcasts, and build a public narrative around what they are doing.

Polymarket’s builder ecosystem breaks this pattern completely.

The upper-right quadrant of the chart, where high visibility meets high traction, is nearly vacant. The bottom-left quadrant holds roughly 70 projects with under $1 million in volume and visibility scores below 5, which is where the vast majority of this ecosystem actually lives.

The obvious question the chart raises is Betmoar. If an anonymous product with no named founder and no press coverage can process $817M, what exactly does visibility accomplish?

The answer depends on the project’s threat model. In a stable, platform-agnostic world, Betmoar’s position looks unassailable. But Betmoar runs entirely on Polymarket’s API, has no public founder who could rally users if the platform changed fee structures, and has no press record that would help it survive a competitor’s launch or a Polymarket policy change. Volume is a trailing indicator. Brand equity is a leading one. What the leaderboard doesn’t show is what happens to Betmoar’s 50,000 users the first week a well-funded, well-branded competitor launches a serious product.

A few builders have already begun to insulate themselves from this risk. Stand.trade aggregates multiple prediction platforms, meaning it offers something Polymarket cannot replicate without acquiring its competitors. Semantic Layer has $5 million in institutional backing and a differentiated AI-agent proposition. PolyTraderPro’s founder posts actively about the product and has built a recognizable public identity around it. Each is approaching the empty quadrant from a different direction. Everyone else is waiting for volume alone to do the work that visibility was supposed to do alongside it.

The simplest observation the chart supports is that no project in this ecosystem has yet combined a working product with a public founder, a consistent company voice, and a real press footprint. And one would think that the upper-right quadrant is empty because the combination fails. But the reality is that it is empty because nobody has tried it.

None of the 114 builders in this report are short on product ambition. What they are short on is the connective tissue between building something and making sure the right people know it exists.

The builders who will occupy the upper-right quadrant are the ones who build a public identity as deliberately as they built their product. That means a named founder who speaks publicly, a company voice that exists independent of any one platform, and a press record that creates institutional memory. In a platform-dependent ecosystem, they are the only parts of the business that Polymarket cannot replicate.

For most of the 114 builders in this report, the product work is already done. The missing piece is someone whose job it is to make sure the right people know it exists.