Company guide · Updated September 23, 2026

Rush Street Interactive: BetRivers Company Guide

Rush Street Interactive connects BetRivers.net’s play-for-fun service with a wider gaming business. Its company records distinguish the public holding corporation from the operating partnership, while social games, real-money products and technology services have different roles.

Affiliate relationships: American Casino Sweeps may earn revenue from qualifying referrals on linked pages. ACS is an independent information website, not a casino operator, and cannot access player accounts or transactions.
Company overview

Rush Street Interactive company names explained

Rush Street Interactive, Inc. is the Delaware holding company identified in the group’s June 2026 quarterly filing. In contrast, Rush Street Interactive, LP is its main operating subsidiary. The filing uses RSILP for the partnership and its subsidiaries together. [2]

The distinction matters because these are different legal entities, not two spellings of one company. Meanwhile, BetRivers is a customer-facing brand, and Casino4Fun identifies a play-for-fun product rather than a corporate entity. [2][5][7]

For the Casino4Fun lobby, registration and virtual-credit experience, see the BetRivers.net review. In addition, other operator profiles appear in the Sweepstakes Casino Companies directory.

Legal entities

Holding company, partnership and subsidiaries

Public holding company

Rush Street Interactive, Inc.

The quarterly filing identifies Inc. as the holding company. In other words, its consolidated reports cover the group rather than BetRivers.net alone. [2]

Main operating subsidiary

Rush Street Interactive, LP

LP is the operating partnership. In addition, the US BetRivers.net footer carries the Rush Street Interactive LP name in its copyright notice. [2][6]

General partner and control

RSI GP, LLC

According to the 2025 annual report, RSI GP is RSILP’s sole general partner. Control of the partnership therefore runs through that role, which is distinct from an economic ownership percentage. [1]

Partnership-interest holding

RSI ASLP, Inc.

The annual report identifies RSI ASLP as the Special Limited Partner. It holds the company’s RSILP Class A units, while RSI GP holds the general partnership interests. [1]

Selected subsidiaries in the public record

Exhibit 21.1 names significant subsidiaries and their jurisdictions as of December 31, 2025. For example, the list includes the operating partnership, state-named entities and development or intellectual-property entities. However, these are corporate records, not separate casino recommendations. [3]

Significant subsidiaries listed in Exhibit 21.1 at December 31, 2025. [3]
Legal entityJurisdiction
Rush Street Interactive, LPDelaware
Rush Street Interactive MI, LLCDelaware
Rush Street Interactive PA, LLCDelaware
Rush Street Interactive DE, LLCDelaware
Rush Street Interactive Colombia S.A.S.Colombia
RSI IP Holding, LLCDelaware
RSI Development Colombia, S.A.S.Colombia
Rush Street Interactive Development Estonia OüEstonia
RSI Development Canada, ULCCanada
Ownership detail: The exhibit uses a general wholly-owned statement. However, the financial notes disclose non-controlling economic interests in RSILP. The exhibit therefore needs to be read alongside those notes, not as a complete ownership chart. [1][2][3]
Dated company history

From social gaming to the public-company structure

Business founding, a product launch and a corporate incorporation describe different events. Similarly, an announced transaction is not the same as its completion.

  1. 2012

    The business is founded

    RSI dates the founding of its business to 2012. However, that company history does not establish the exact formation date of every entity in the group. [8][9]

  2. July 2015

    SugarHouse Casino4Fun launches

    The investor-relations overview identifies SugarHouse Casino4Fun as the first social-gaming site. In other words, this milestone concerns the social product, not the later real-money casino. [4]

  3. September 2016

    New Jersey online-casino launch

    By comparison, the company history dates the PlaySugarHouse.com New Jersey online-casino launch to September 2016. This was a separate launch from Casino4Fun. [4]

  4. September 27, 2019

    The corporate predecessor is incorporated

    The annual report dates the incorporation of dMY Technology Group, Inc. to September 27, 2019. This date therefore concerns the public-company predecessor, not RSI’s 2012 business founding. [1]

  5. July 27, 2020

    A combination is announced

    RSI and dMY announced a proposed business combination. However, the release described an agreement and intended transaction, not a completed closing. [9]

  6. December 29, 2020

    The combination closes

    Finally, the annual report records completion of the business combination and the corporate name change to Rush Street Interactive, Inc. on December 29, 2020. [1]

BetRivers.net / Casino4Fun

The BetRivers.net social-casino review

BetRivers.net casino logo

BetRivers.net

Casino4Fun

Play-for-fun social casino

The ACS review covers Casino4Fun’s lobby, registration and virtual-credit model. In contrast, the wider group’s real-money casino and sportsbook businesses involve different products.

Company name
Rush Street Interactive, LP
Product
BetRivers.net / Casino4Fun
Gameplay model
Entertainment-only
The .net product

Social play is not a real-money casino account

The US BetRivers.net footer describes its games as play-for-fun and entertainment-only. Specifically, it says they do not offer real-money gambling or an opportunity to win real money or prizes. It also states a 21+ audience limit. [6]

In contrast, the corporate portfolio includes real-money gaming products. However, a shared BetRivers name does not make their balances, account conditions or eligibility interchangeable. [5][7]

For account and promotion questions, use the exact service’s documents rather than a general corporate record. Neither a corporate filing nor a website footer replaces a full player agreement.

Product distinction: The BetRivers.net review is about Casino4Fun. It is not a review of every BetRivers-branded real-money casino, sportsbook or jurisdiction.
Wider company portfolio

BetRivers, PlaySugarHouse and RushBet

The corporate website presents BetRivers, PlaySugarHouse and RushBet. However, these brands span different products and markets; they are not three additional nationwide US sweepstakes casinos. [7]

Wider business context

BetRivers

The corporate site presents BetRivers as an online casino and sportsbook brand. However, its real-money activities remain distinct from the BetRivers.net play-for-fun service. [7]

Wider business context

PlaySugarHouse

PlaySugarHouse appears in the wider online casino and sportsbook portfolio. In addition, its company history has a separate Casino4Fun social-gaming milestone. [7]

Wider business context

RushBet

The corporate site presents RushBet as a Latin American online casino and sportsbook brand. By comparison, the BetRivers.net review concerns the US play-for-fun product. [7]

Products and services are different categories

SOCIAL

Social gaming

Casino and sports-themed social products offer a free-to-play setting. Their currency and rules therefore need to be understood separately from real-money products. [5]

REAL MONEY

Casino, sportsbook and poker

The products page distinguishes online casino, online sportsbook, retail sportsbook and poker. However, these categories do not establish one shared account or universal player eligibility. [5]

TECHNOLOGY

Business-to-business services

RSI also presents technology for other businesses. However, supplying a platform is a different role from being the legal operator named in a player agreement. [5]

Ownership and brand rights

Economic interests, control and licensing

Control and economic participation answer different questions. Whereas control concerns authority over the business, economic participation concerns interests in its financial results. RSI’s filings therefore describe both rather than treating them as one percentage. [1][2]

RSILP economic interests at June 30, 2026

Company interest49.82%

RSILP economic interest reported for the company.

Non-controlling interests50.18%

RSILP economic interests reported for other holders.

These percentages are a June 30, 2026 partnership-interest snapshot. In other words, they do not show today’s public-share ownership, individual owners or each party’s share of a player’s account. [2]

Meanwhile, the annual report explains control through RSI GP as sole general partner. As a result, economic interests and authority to manage the partnership should not be read as interchangeable. [1]

Brand licenses and license-back agreements

The 2025 annual report describes separate arrangements. For example, Rivers IP Holdings, LLC licenses specified Rivers/BetRivers trademarks and related domains to RSI for the agreed uses. In addition, it names Sugar House HSP Gaming, LP for SugarHouse-related rights. [1]

Separately, Rush Street Gaming, LLC and its affiliates assigned certain trademarks and domains to RSI. RSI then licensed some of those rights back for specified uses. This arrangement is therefore distinct from the Rivers IP license. [1]

These brand permissions therefore do not make the companies interchangeable. Likewise, a trademark license does not itself establish ownership of the business using it or authorize gaming in every jurisdiction.

Public-company records

What the company filings can establish

Annual company record

What the Form 10-K covers

The annual report describes corporate history, the business, risks and consolidated financial statements. In other words, it supplies group context, not a separate financial statement for each consumer brand. [1]

Interim company record

What the Form 10-Q adds

In addition, the June 2026 quarterly report supplies a later reporting-period snapshot. However, its financial statements are unaudited interim statements, intended to be read with the annual report. [2]

Similarly, the subsidiary exhibit records significant legal entities at its stated date. However, it does not identify every commercial agreement, certify the group’s entire ownership chain or make a product eligible in every location. [3]

Therefore, consolidated group results should not be labelled BetRivers.net revenue or player balances. Nor do public-company reporting, a recognizable brand or a company listing guarantee a payment or establish a product’s gaming authorization.

Source documents

Rush Street Interactive company sources

The numbered references identify the filing, company history or product notice behind each section. Reporting dates and product descriptions retain their own scope.

  1. 12025 Form 10-K: Rush Street Interactive, Inc.Year ended December 31, 2025; filed February 18, 2026. Corporate history, partnership control and economic interests; separate licenses and license-back arrangements in the Intellectual Property section.
  2. 2June 2026 Form 10-Q: Rush Street Interactive, Inc.Period ended June 30, 2026. Notes 1 and 2 distinguish the holding company, operating partnership and non-controlling economic interests.
  3. 3Exhibit 21.1: significant subsidiariesSubsidiary names and jurisdictions as of December 31, 2025. Read with the financial notes on partnership interests and control.
  4. 4RSI investor-relations corporate overviewCompany account of the July 2015 SugarHouse Casino4Fun launch and September 2016 New Jersey online-casino launch.
  5. 5Rush Street Interactive productsSeparate descriptions of social gaming, online casino, online sportsbook, retail sportsbook, poker and business-to-business technology.
  6. 6US BetRivers.net website footerPlay-for-fun description, no real-money or prize wins from its games, 21+ audience notice and Rush Street Interactive LP copyright name. Footer information is distinct from a full player agreement.
  7. 7Rush Street Interactive corporate homepageCorporate presentation of BetRivers, PlaySugarHouse and RushBet. Brand coverage is not a universal availability or licensing statement.
  8. 8Rush Street Interactive About pageCompany account of the business being founded in 2012. This is distinct from the incorporation date of the later public-company predecessor.
  9. 9July 27, 2020 proposed business-combination announcementSEC Exhibit 99.1 announcing the proposed RSI/dMY combination. Its forecasts and proposed transaction terms are not current outcomes.

Information date: September 23, 2026. Partnership interests are dated June 30, 2026; the subsidiary list is dated December 31, 2025. Company information and product conditions can change.

Common questions

Rush Street Interactive FAQ

Company structure and history

What is Rush Street Interactive?

Rush Street Interactive is the gaming group associated with brands including BetRivers, PlaySugarHouse and RushBet. However, its filings distinguish the holding company, Rush Street Interactive, Inc., from its main operating partnership, Rush Street Interactive, LP. [2][7]

Are Rush Street Interactive, Inc. and LP the same company?

No. Inc. is the holding corporation, whereas LP is the main operating subsidiary. Their related names therefore do not make the legal entities interchangeable. [2]

Who controls the operating partnership?

The annual report describes control through RSI GP, LLC, the sole general partner of RSILP. In contrast, the financial notes report economic interests held by the company and non-controlling holders. [1][2]

When was Rush Street Interactive founded?

RSI dates its business founding to 2012. By comparison, its public-company predecessor was incorporated in 2019, and the business combination closed in December 2020. These dates therefore describe different events, rather than a single launch. [8][1]

Was SugarHouse Casino4Fun the same launch as PlaySugarHouse.com?

No. The investor-relations history dates the first social-gaming site to July 2015. In contrast, it dates the New Jersey online-casino launch to September 2016. [4]

Products, brand rights and review links

Is BetRivers.net a real-money casino?

The US BetRivers.net footer describes the service as play-for-fun and entertainment-only. Specifically, it states that its games do not offer real-money gambling or real-money or prize wins. In contrast, the wider group’s real-money products are separate. [6][5]

Do all RSI brands share the same rules and balances?

A shared company or brand does not establish shared accounts, currencies or eligibility. RSI presents social gaming, real-money products and technology services as different categories, so the exact product documents matter. [5][7]

Is Rush Street Gaming, LLC another name for Rush Street Interactive?

No. Rush Street Gaming, LLC is a separate affiliated entity named in trademark assignment and license-back arrangements. In contrast, the report identifies Rivers IP Holdings, LLC as licensing specified Rivers/BetRivers rights to RSI. [1]

Do the reported ownership percentages show today’s shareholders?

No. The 49.82% company interest and 50.18% non-controlling interests describe RSILP economic interests at June 30, 2026. They therefore do not provide a current public-shareholder list or an individual-owner breakdown. [2]

Where can readers find the BetRivers.net product review?

The BetRivers.net review covers Casino4Fun registration, games and the virtual-credit model. In contrast, the company guide focuses on corporate roles, history and the wider business.

Edvina Kaminskaite, Owner and Editor of American Casino Sweeps
About the author

Written by Edvina Kaminskaite

Owner and Editor, American Casino Sweeps

Edvina covers social and sweepstakes casino operators, company structures, platform terms and payment relationships.

Updated:

Affiliate relationships: ACS may earn revenue from qualifying referrals on selected linked pages.

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American Casino Sweeps is an independent information website. Corporate disclosures do not replace product terms, establish universal eligibility or guarantee payments. This company guide is not investment advice.