Polymarket has acquired prediction markets data supplier Dome for an undisclosed sum in what has been a positive week for the supplier side of the sector.
The two parties confirmed the deal on Thursday, 19 February, with Polymarket stating it was “committed to creating the best developer experience in prediction markets”.
Dome, a graduate of the Y Combinator, was founded last year. It had raised $4.7m in a seed round prior to the sale.
Co-founded by Berkley graduates Kunal Roy and Kurush Dubash, Dome provides live and historical prediction markets data via a “unified API”.
“We provide the developer infrastructure to access, analyse and build on prediction markets,” the company said.
“Dome makes it simple to trade, embed market data into products and deploy strategies across multiple platforms through one interface.”
The acquisition of Dome comes after Polymarket snapped up QCEX in July of last year for $112m.
QCEX is certified as a designated contract market and clearing house by the Commodity Futures Trading Commission (CFTC) and will allow Polymarket to return to the US.
The blockchain-powered exchange previously exited the US in 2022 after reaching a settlement with the CFTC over operating without a licence.
Polymarket was worth around $9bn at the end of 2025 after a $2bn investment from Intercontinental Exchange (ICE), owner of the New York Stock Exchange.
Polymarket founder Shayne Coplan, 27, became the world’s self-made billionaire in October.
Dubash said: “Excited to share that Polymarket is acquiring Dome. From day one, our mission was simple: make it easy and reliable to build in prediction markets.
“There’s no better place to push that mission forward than Polymarket.
“To all our investors, Kunal Roy and I thank you for taking a chance on us early and believing in our vision. We’re deeply grateful for your trust and support.”
The sale of Dome to Polymarket has capped a strong week for suppliers in the prediction markets space after Fireplace raised $1.5m.
Presenting itself as a ‘Bloomberg Terminal’ for prediction markets, the Hong Kong-based business raised the capital in a pre-seed round led by crypto VC firm Frachtis.
India-based prediction markets startup PRED also raised $2.5m this week in a seed round led by VC outfit Accel, while Novig scored $75m in a Series B.
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New York-based exchange snaps up Y Combinator graduate to boost data and insights
The post Polymarket swoops for prediction markets API startup Dome first appeared on EGR Intel.