Company lists · Data refreshed September 2026

Top 25 Online sports betting companies based in the United States

Name: Online sports betting companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 610 companies tracked

RevenueBase identified 610 online sports betting companies headquartered in the United States as of September 2026 and tracks 20,094 professional contacts across them, including 10,472 with verified work emails. New York is the largest hub.

This list covers online sports betting companies 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

610Companies

20,094Contacts tracked

10,472Verified emails

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The 25 largest online sports betting companies based in the United States

Ranked by team size

Top 25 of 610 online sports betting companies based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to online sports betting companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Draftkings INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	1,001-5,000	5,439 contacts →
	Indirect evidence “It's simple, we believe life is more fun when you're in on the action.” Source: RevenueBase Database · checked Sep 20, 2026
2	Fanduel	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	3,983 contacts →
	Partial evidence “FanDuel Group is an innovative sports-tech entertainment company that is changing the way consumers engage with their favorite sports, teams, and leagues.” Source: RevenueBase Database · checked Sep 20, 2026
3	Flutter Entertainment	Strong evidence	New York, NY, United StatesHQ checked Sep 20, 2026	10001+	2,363 contacts →
	Strong evidence “Flutter is the world’s leading online sports betting and gaming company, operating some of the most innovative, diverse and distinctive brands in the sector such as FanDuel, Sky…” Source: RevenueBase Database · checked Sep 20, 2026
4	Hard Rock Digital	Strong evidence	Hollywood, TX, United StatesHQ checked Sep 20, 2026	501-1,000	958 contacts →
	Strong evidence “Hard Rock Digital is building the future of online sports betting and interactive gaming.” Source: RevenueBase Database · checked Sep 20, 2026
5	Rush Street Interactive	Strong evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	501-1,000	711 contacts →
	Strong evidence “Founded in 2012 by gaming industry veterans, RSI is a market leader in online casino and sports betting in the U.S, Canada and Latin America through its BetRivers, PlaySugarHouse…” Source: RevenueBase Database · checked Sep 20, 2026
6	Underdog	Partial evidence	Brooklyn, NY, United StatesHQ checked Sep 20, 2026	201-500	608 contacts →
	Partial evidence “Underdog, the fastest-growing private sports company in the U.S, was founded in 2020 with the simple objective of making sports more fun.” Source: RevenueBase Database · checked Sep 20, 2026
7	Penn Interactive	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	201-500	321 contacts →
	Indirect evidence “Penn Interactive (PI) is an interactive gaming company headquartered in Philadelphia,PA with offices in Greenfield, MA, and Cherry Hill, NJ.” Source: RevenueBase Database · checked Sep 20, 2026
8	Outlier	Strong evidence	Austin, TX, United StatesHQ checked Sep 20, 2026	n/a	266 contacts →
	Strong evidence “Outlier is a first-of-its-kind sports betting platform where sports fans can browse, analyze, and execute bets with confidence.” Source: RevenueBase Database · checked Sep 20, 2026
9	Twinspires	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 20, 2026	201-500	167 contacts →
	Indirect evidence “TwinSpires is owned and operated by Churchill Downs, Inc, the home of the world-famous Kentucky Derby.” Source: RevenueBase Database · checked Sep 20, 2026
10	BETR	Indirect evidence	Miami, FL, United StatesHQ checked Sep 20, 2026	51-200	120 contacts →
	Indirect evidence “Founded in 2022 by Joey Levy and Jake Paul, Betr has built the world's first real money gaming super app.” Source: RevenueBase Database · checked Sep 20, 2026
11	TVG Network Betfair US	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 20, 2026	201-500	108 contacts →
	Indirect evidence “TVG Network Betfair US is a subsidiary of Paddy Power Betfair plc.” Source: RevenueBase Database · checked Sep 20, 2026
12	Fliff INC	Partial evidence	Philadelphia, United StatesHQ checked Sep 20, 2026	51-200	92 contacts →
	Partial evidence “Fliff is the home of social sports gaming.” Source: RevenueBase Database · checked Sep 20, 2026
13	Vsin, The Sports Betting Network	Strong evidence	Las Vegas, NV, United StatesHQ checked Sep 20, 2026	51-200	85 contacts →
	Strong evidence “VSiN is THE Sports Betting Network.” Source: RevenueBase Database · checked Sep 20, 2026
14	MOJO	Strong evidence	New York, United StatesHQ checked Sep 20, 2026	11-50	81 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 20, 2026
15	Action Network	Strong evidence	New York, NY, United StatesHQ checked Sep 20, 2026	201-500	70 contacts →
	Strong evidence “Action Network, established in 2017, is a premier provider of sports betting and analytics, delivering data-driven insights, expert analysis, and real-time odds tracking.” Source: RevenueBase Database · checked Sep 20, 2026
16	Sidelines Group	Strong evidence	New York, United StatesHQ checked Sep 20, 2026	51-200	68 contacts →
	Strong evidence “Sidelines Group is a sports technology and digital media company dedicated to helping users make data-driven, smart sports betting decisions.” Source: RevenueBase Database · checked Sep 20, 2026
17	Betparx	Partial evidence	Philadelphia, United StatesHQ checked Sep 20, 2026	51-200	63 contacts →
	Partial evidence “betPARX® is a simpler, faster, and easier casino & sportsbook right in your pocket!” Source: RevenueBase Database · checked Sep 20, 2026
18	Splash INC	Indirect evidence	Denver, United StatesHQ checked Sep 20, 2026	11-50	52 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
19	Rebet, INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	51-200	46 contacts →
	Partial evidence “ReBet is a next-generation social sportsbook and casino platform built for modern sports and gaming fans.” Source: RevenueBase Database · checked Sep 20, 2026
20	TAPPP	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	11-50	35 contacts →
	Partial evidence “is a technology and marketing company that helps media, consumer products, and sports wagering clients drive customer acquisitions, transactions, engagement, and retention through…” Source: RevenueBase Database · checked Sep 20, 2026
21	ALT Sports Data	Partial evidence	San Diego, CA, United StatesHQ checked Sep 20, 2026	11-50	34 contacts →
	Partial evidence “ALT Sports Data ASD is at the forefront of utilizing proprietary data to activate a growing wave of new sports enthusiasts.” Source: RevenueBase Database · checked Sep 20, 2026
22	Kero Sports	Strong evidence	Miami, FL, United StatesHQ checked Sep 20, 2026	51-200	33 contacts →
	Strong evidence “Kero is a real time betting technology provider to over 180 sportsbooks worldwide, offering the deepest and most robust selection of fast markets possible.” Source: RevenueBase Database · checked Sep 20, 2026
23	Parlayplay Fantasy Sports	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	1-10	26 contacts →
	Partial evidence “ParlayPlay Fantasy is the next generation platform for real money sports gaming.” Source: RevenueBase Database · checked Sep 20, 2026
24	Simplebet	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	51-200	24 contacts →
	Indirect evidence “Our mission is to power the future of fan engagement.” Source: RevenueBase Database · checked Sep 20, 2026
25	United Interactive LLC	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 20, 2026	51-200	24 contacts →
	Strong evidence “Founded in 2023 and headquartered in Atlanta, Georgia, United Interactive is a comprehensive online gaming company featuring casino gaming, sports betting and social casino.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: online sports betting companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names online sports betting companies.
Partial evidence: Its own public description names part of online sports betting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name online sports betting companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 610 online sports betting companies based in the United States

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Online sports betting companies based in the United States at a glance

As of Sep 20, 2026

52.1%Verified-email coverage

32.9Average contacts per company

1-10Median size (employees)

7.4%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

377

11-50

164

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 610 companies.

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 online sports betting companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “online sports betting companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names online sports betting companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among online sports betting companies, 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 its RevenueBase Smart Search 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, 10,472 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 20, 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.

Online sports betting companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names online sports betting companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many online sports betting companies are there based in the United States?

RevenueBase identified 610 online sports betting companies 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?

Draftkings INC, headquartered in Boston, tops this list with the largest team on record.

Which city has the most online sports betting companies?

New York leads with 45 headquartered companies, followed by Chicago (26) and Las Vegas (25).

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 10,472 verified decision-maker contacts tracked across these 610 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 20, 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 Smart Search, 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.