Company lists · Data refreshed September 2026

Top 17 Prediction market platforms based in the United States

RevenueBase identified 71 prediction market platforms headquartered in the United States as of September 2026 and tracks 682 professional contacts across them, including 185 with verified work emails and 203 with mobile numbers. New York is the largest hub.

This list covers prediction market platforms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
71Companies
682Contacts tracked
185Verified emails
203Mobile numbers
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The 17 largest prediction market platforms based in the United States

Ranked by team size
Top 17 of 71 prediction market platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names prediction market platforms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
PolymarketStrong evidence
New York, NY, United StatesHQ checked Sep 5, 202651-200218

“The world’s leading prediction market platform, where users trade on the outcomes of real-world events.”

Source: company website · checked Sep 5, 2026
2
MOJOStrong evidence
New York, United StatesHQ checked Sep 5, 202611-5081

“Making the most comprehensive and differentiated prediction markets in sports-from the next play to an entire career-to transform the sports betting, fantasy, gaming and…”

Source: company website · checked Sep 5, 2026
3
NOVIGStrong evidence
New York, NY, United StatesHQ checked Sep 5, 202611-5047

“Building America's Sports Prediction Market

Source: company website · checked Sep 5, 2026
4
MetaculusStrong evidence
Santa Cruz, CA, United StatesHQ checked Sep 5, 202611-5033

“Metaculus is a forecasting technology platform that optimally aggregates quantitative predictions of future events.”

Source: company website · checked Sep 5, 2026
5
ForkastStrong evidence
New York, United StatesHQ checked Sep 5, 20261-1017

“Forkast is an agentic prediction market.”

Source: company website · checked Sep 5, 2026
6
ONYXStrong evidence
New York, NY, United StatesHQ checked Sep 5, 202651-20013

“Onyx Odds is a fast-growing prediction platform transforming how people interact with sports, crypto, and real-world events.”

Source: company website · checked Sep 5, 2026
7
FutuurStrong evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-1012

“Futuur is a prediction market where you can trade on future events and help create better forecasts for everyone!”

Source: company website · checked Sep 5, 2026
8
Manifold MarketsStrong evidence
Remote, United StatesHQ checked Sep 5, 20261-1011

“Unlike most prediction markets, Manifold gives complete autonomy to its users for creating and resolving markets.”

Source: company website · checked Sep 5, 2026
9
TallysightStrong evidence
San Diego, CA, United StatesHQ checked Sep 5, 202611-507

“Tallysight is the infrastructure layer connecting predictions to the platforms where they convert - across sports gaming, prediction markets, and fantasy.”

Source: company website · checked Sep 5, 2026
10
RailbirdPartial evidence
New York, United StatesHQ checked Sep 5, 20261-106

“We're building an event contract derivatives market!”

Source: company website · checked Sep 5, 2026
11
MetadaoPartial evidence
San Francisco, CA, United StatesHQ checked Sep 5, 20261-104

“We believe that the world's decisions can be made by markets.”

Source: company website · checked Sep 5, 2026
12
PIKIStrong evidence
Brooklyn, NY, United StatesHQ checked Sep 5, 20261-104

“Piki launched the world’s first music prediction marketplace.”

Source: company website · checked Sep 5, 2026
13
IntualityaiPartial evidence
Winston Salem, NC, United StatesHQ checked Sep 5, 202611-503

“Visit Amazon to read our new book about our science,"Intuitive Rationality: Predicting future events with the new behavioral direction of AI" IntualityAI® is the commercial…”

Source: company website · checked Sep 5, 2026
14
QuantifaiStrong evidence
New York, United StatesHQ checked Sep 5, 20261-103

“quantifAI is an AI prediction intelligence platform for traders and developers.”

Source: company website · checked Sep 5, 2026
15
SportscapitalIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202611-502
Source: company website · checked Sep 5, 2026
16Arlington, VA, United StatesHQ checked Sep 5, 20261-101

“The Coalition for Political Forecasting is a community of researchers, traders, and philanthropists that sees real-money prediction markets and other betting platforms as advanced…”

Source: company website · checked Sep 5, 2026
17
PopcultureIndirect evidence
Brentwood, TN, United StatesHQ checked Sep 5, 20261-101
Source: company website · checked Sep 5, 2026

Showing 17 of 71 prediction market platforms based in the United States

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Prediction market platforms based in the United States at a glance

As of Sep 5, 2026
1-10Median size (employees)
New YorkLargest hub · 23 HQs
203Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
55
11-50
11
51-200
5

Verified emails by last verification

0–30
174
31–60
11
61–90
0
90–180
0
180+
0

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among prediction market platforms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “prediction market platforms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among prediction market platforms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 185 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

How many prediction market platforms are there based in the United States?

RevenueBase identified 71 prediction market platforms headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Polymarket, headquartered in New York, tops this list with the largest team on record.

Which city has the most prediction market platforms?

New York leads with 23 headquartered companies, followed by San Francisco (8) and New York City (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 185 verified decision-maker contacts tracked across these 71 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.