California's sports betting industry is a dynamic and rapidly evolving sector that allows individuals to wager on a variety of sporting events. Firms primarily operate online, specializing in offerings like sports betting, casino games, and horse racing. As legislation becomes more favorable, the industry is poised for growth, with increasing competition and innovation in technology and user engagement strategies. Notably, California's vast market attracts a plethora of companies, from major players to niche-oriented startups, all vying for market share and customer loyalty. The trend toward mobile betting is particularly reshaping consumer interactions.

This list highlights 24 noteworthy sports betting companies based in California. From large firms with hundreds of employees to smaller, agile operations, these companies have established themselves across various cities. Founded between 1959 and 2021, their specializations include online platforms for sports betting, horse racing, and casino games. Companies like TVG Network Betfair US and Santa Anita Park showcase California’s rich betting culture, emphasizing the state’s influence on the sports betting landscape. Each entity brings distinct advantages and services to entice consumers and bettors alike.

Read on to discover the top sports betting companies in California.

Top 24 Sports Betting Companies in California

1. TVG Network Betfair US

• Website: tvg.com
• Ownership type: Corporate
• Headquarters: Los Angeles, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: January 2009
• Founded year: 1993
• Headcount: 201-500
• LinkedIn: tvg-network

TVG Network Betfair US, founded in 1993 and based in Los Angeles, California, operates as an online betting platform that specializes in horse racing. The company offers a range of services including online horse racing betting, promotions, and handicapping tips, catering to consumers who are passionate about the sport. TVG allows users to place bets conveniently and access live racing events, enhancing the overall betting experience. With a workforce of approximately 201-500 employees, the company has maintained a consistent presence in the industry, focusing solely on horse racing rather than branching into other sports. This specialization has helped TVG carve out a niche in the competitive landscape of sports betting.

2. Betus

• Website: betus.com.pa
• Ownership type: Private
• Headquarters: San Jose, California, United States (USA)
• Employee distribution: Costa Rica 85%, United States (USA) 7%, Panama 2%, Other 5%
• Founded year: 1994
• Headcount: 11-50
• LinkedIn: betus

Betus, based in San Jose, California, is an online sportsbook and casino that has been operational since 1994. The company caters to individual consumers by providing a platform for sports betting, live betting, and a variety of casino games. With a workforce primarily located in Costa Rica, Betus emphasizes customer service, assigning personal account managers to enhance the betting experience. The platform offers a wide range of sports for betting, including popular options like NFL, NBA, and esports, as well as niche sports. Betus is known for its competitive promotions and bonuses, which attract a loyal customer base. The company has built a reputation for reliability, particularly in terms of payout speed and customer support, making it a notable player in the online gambling sector.

3. Youbet.com

• Website: youbet.com
• Ownership type: Corporate
• Headquarters: Los Angeles, California, United States (USA)
• Latest funding: $126.8M, November 2009
• Founded year: 1996
• Headcount: 201-500
• LinkedIn: youbet.com

Youbet.com, based in Los Angeles, California, is a sports betting analysis company that has been active since its founding in 1996. The firm specializes in providing expert insights and predictions for various sports, with a particular emphasis on NFL games. Youbet.com serves a niche market of sports enthusiasts and bettors, offering valuable information through articles, betting odds, and expert picks. This focus on enhancing the betting experience for its customers reflects its commitment to the sports betting industry. The company has also attracted substantial funding, amounting to approximately $126.8 million, which underscores its potential for growth and relevance in the competitive sports betting market.

4. Gracedbygrit

• Website: gracedbygrit.com
• Ownership type: Private
• Headquarters: Solana Beach, California, United States (USA)
• Latest funding: Crowdfunding, $230,000, November 2017
• Founded year: 2013
• Headcount: 11-50
• LinkedIn: graced-by-grit

Gracedbygrit, founded in 2013 and based in Solana Beach, California, operates as an online gambling platform under the name K9win. The company specializes in sports betting and casino games, providing users with a secure and user-friendly interface for placing bets on various sports events. Gracedbygrit targets online gamblers and sports enthusiasts, offering promotions and bonuses to enhance the betting experience. The platform allows users to engage in sports betting with a minimum stake, making it accessible to a wide range of players. In 2017, the company raised $230,308 through crowdfunding, indicating a level of interest and support for its business model. This funding has likely contributed to its operational capabilities and marketing efforts within the competitive online gambling industry.

5. Del Mar Thoroughbred Club

• Website: dmtc.com
• Ownership type: Private
• Headquarters: Del Mar, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1968
• Headcount: 51-200
• LinkedIn: del-mar-thoroughbred-club

Del Mar Thoroughbred Club, established in 1968, is a prominent horse racing organization located in Del Mar, California. The club specializes in hosting a variety of racing events, offering wagering services that attract both seasoned bettors and casual fans. It provides essential resources such as live video streaming, race results, and comprehensive handicapping tools to enhance the betting experience. The club operates primarily during its racing seasons, creating a vibrant atmosphere that draws attendees for both the thrill of the races and the accompanying entertainment options. With a dedicated focus on horse racing, Del Mar Thoroughbred Club plays a crucial role in the sports betting industry, particularly in the niche of equine wagering.

6. Marina Casino

• Website: mozzartbet.com
• Ownership type: Private
• Headquarters: San Rafael, California, United States (USA)
• Employee distribution: Mozambique 31%, Sri Lanka 19%, Zimbabwe 13%, Other 37%
• Founded year: 2001
• Headcount: 51-200
• LinkedIn: marina-casino

Marina Casino, also known as Mozzart, is a private betting and gaming company founded in 2001 and based in San Rafael, California. The company specializes in online sports betting and slot games, catering to consumers seeking entertainment through gambling activities. Mozzart operates a digital platform that allows users to conveniently place bets and engage in gaming. With a workforce of approximately 183 employees, the company has a notable presence in various countries, including Mozambique, Sri Lanka, and Zimbabwe, indicating its international reach. The absence of reported funding suggests that the company has been self-sustaining since its inception, focusing on enhancing user experience and functionality through its online services.

7. Cardiology

• Website: helicsgroup.net
• Ownership type: Private
• Headquarters: Whittier, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2014
• Headcount: 51-200
• LinkedIn: heartcongress

Cardiology, associated with the website helicsgroup.net, operates as a platform for Bet365, a prominent online betting service. Founded in 2014, the company has positioned itself within the online gambling industry, providing a comprehensive suite of betting options that includes sports betting, casino games, and live betting. Bet365 is known for its robust functionality and user-focused services, catering to a global audience of betting enthusiasts. The platform operates under strict regulatory oversight, ensuring compliance and safety for its users. With a commitment to responsible gambling, Bet365 offers various tools to help users manage their betting activities. The company has not reported any funding, indicating a self-sustained operational model.

8. Sports Studio

• Website: sportsstudio.net
• Ownership type: Private
• Headquarters: Torrance, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1972
• Headcount: 11-50
• LinkedIn: sports-studio

Sports Studio, also known as Parlay4d, is an online gambling platform based in Torrance, California. Founded in 1972, the company has carved out a niche in the online betting industry, offering a variety of services that include sports betting and online casino games. Parlay4d caters to individual consumers, providing a secure and user-friendly environment for engaging in gambling activities. The platform supports a wide array of sports betting options, including live betting on major leagues and events. With a focus on enhancing user experience, Parlay4d has gained traction among bettors, particularly in the Asian market, where it is recognized for its competitive odds and comprehensive betting options. Despite its long-standing presence in the industry, the company has not reported any recent funding, which may limit its ability to expand or innovate further in a competitive market.

9. MACE Media Group

• Website: macemediagroup.com
• Ownership type: Private
• Headquarters: Grover Beach, California, United States (USA)
• Founded year: 2016
• Headcount: 11-50
• LinkedIn: mace-media-group

MACE Media Group, founded in 2016 and based in Grover Beach, California, is a private company with a small team of 11-50 employees. The company operates Ahha4d, an online betting platform that specializes in sports betting, particularly focusing on football. Ahha4d aims to provide a reliable and trustworthy service for individuals interested in placing bets on various football matches. The platform emphasizes enhancing the betting experience for its users, offering competitive odds and a secure environment for online gambling. MACE Media Group's commitment to sports betting, especially in the Indonesian market, highlights its active role in the industry.

10. BetAnySports

• Website: betanysports.eu
• Ownership type: Private
• Headquarters: San Jose, California, United States (USA)
• Employee distribution: Costa Rica 100%
• Founded year: 2002
• Headcount: 201-500
• LinkedIn: betanysports

BetAnySports is a private gaming company based in San Jose, California, with operations primarily in Costa Rica. Founded in 2002, the company specializes in sports betting, casino games, and lottery services. It has built a reputation as a trusted operator in the gaming industry, offering a wide array of betting options to consumers. BetAnySports emphasizes quick payouts and a variety of promotions to enhance the customer experience. Their platform includes features such as live betting, props, and a comprehensive racebook for horse racing enthusiasts. The company also accepts multiple payment methods, including cryptocurrencies, which reflects its adaptability to current market trends. With a focus on customer care and a commitment to providing a secure betting environment, BetAnySports continues to serve a dedicated user base.

11. Breezy

• Website: breezy.com
• Ownership type: Venture Capital
• Headquarters: San Francisco, California, United States (USA)
• Latest funding: Other (Debt), $150,000, September 2017
• Founded year: 2010
• Headcount: 1-10
• LinkedIn: breezy_com

Breezy, based in San Francisco, California, operates the Parlay855 platform, which is a sports betting service primarily targeting enthusiasts in Asia. Founded in 2010, the company has positioned itself as a reliable agent for various online gambling services, including mix parlay and handicap betting. Parlay855 emphasizes a secure betting environment and customer support, aiming to provide a satisfactory experience for its users. The platform offers a range of betting options, catering to different preferences and strategies. With a focus on compliance and security, Parlay855 seeks to maintain a solid reputation in the competitive sports betting market. The company has received funding, with its last reported amount being $150,000 in 2017, indicating some level of investor interest, albeit limited.

12. Kameleon

• Website: kameleonsec.com
• Ownership type: Private
• Headquarters: Mountain View, California, United States (USA)
• Latest funding: July 2021
• Founded year: 2019
• Headcount: 11-50
• LinkedIn: kameleonsec

Kameleon is a private company based in Mountain View, California, founded in 2019. It operates the Pin-up Casino, an online gaming platform that offers a wide array of casino games and sports betting options. The company aims to cater to online gaming enthusiasts by providing a secure and user-friendly environment for players. Pin-up Casino is licensed in Curacao, ensuring compliance with regulatory standards. The platform supports multiple payment methods, including bank cards, e-wallets, and cryptocurrencies, enhancing accessibility for users. Kameleon emphasizes customer support, offering 24/7 assistance through live chat, email, and phone. With a focus on mobile compatibility, players can enjoy their favorite games and betting activities from anywhere, making it a convenient choice for online gaming.

13. Sparket

• Website: betsparket.com
• Ownership type: Venture Capital
• Headquarters: Los Angeles, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Pre-seed, $100,000, March 2023
• Founded year: 2020
• Headcount: 11-50
• LinkedIn: betsparket

Sparket, founded in 2020 and based in Los Angeles, California, is a technology company that specializes in live event wagering software. The company offers customizable betting solutions designed for operators in the gaming industry, aiming to broaden audience engagement through innovative betting opportunities. Sparket's platform allows operators to provide a variety of betting options, including traditional sports, esports, and even non-sporting events like reality TV and award shows. Their unique approach includes a social betting community, branded as the 'Social Betwork®', which encourages user interaction and gamification. Sparket has secured funding, with a notable pre-seed round of $100,000 in March 2023, indicating investor confidence in their business model and growth potential. The company has also formed strategic partnerships with several casinos and entertainment entities, enhancing its footprint in the sports betting landscape.

14. Mesmer

• Website: mesmerhq.com
• Ownership type: Venture Capital
• Headquarters: Palo Alto, California, United States (USA)
• Employee distribution: Pakistan 68%, United States (USA) 16%, India 16%
• Latest funding: Series A, $15.0M, July 2019
• Founded year: 2017
• Headcount: 51-200
• LinkedIn: mesmerhq

Mesmer, founded in 2017 and based in Palo Alto, California, operates as a venture capital-backed company that runs the online betting platform 1xBet. This platform offers a wide range of gambling services, prominently featuring sports betting and casino games. Mesmer aims to provide users with a secure and engaging environment for placing bets and enjoying gaming experiences through its website and mobile application. The company has seen significant user growth, particularly in markets like Saudi Arabia, where it has tailored its offerings to meet local preferences, including support in Arabic and local payment options. In July 2019, Mesmer secured $15 million in Series A funding, indicating investor confidence in its business model and growth potential. With a workforce primarily distributed in Pakistan, the United States, and India, Mesmer is positioned to leverage global talent in its operations.

15. Herburger Publications Inc.

• Website: herburger.net
• Ownership type: Private
• Headquarters: Lincoln, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1959
• Headcount: 51-200
• LinkedIn: herburger-publications-inc-

Herburger Publications Inc., founded in 1959 and based in Lincoln, California, is a private company with a workforce of approximately 51 to 200 employees. The company operates an online gambling platform that specializes in sports betting and casino games. It aims to provide a reliable and user-friendly environment for consumers interested in online gambling. Herburger focuses on offering a variety of betting options, including promotions that enhance the overall user experience. The platform supports multiple sports, including football, boxing, and tennis, and is designed to cater to the needs of its users, ensuring accessibility across various devices. The company has not reported any funding, indicating it operates independently in the market.

16. River Rock Casino Resort

• Website: riverrock.com
• Ownership type: Private
• Headquarters: Richmond, California, United States (USA)
• Employee distribution: Canada 98%, Other 2%
• Founded year: 2004
• Headcount: 1001-5000
• LinkedIn: river-rock-casino-resort

River Rock Casino Resort, located in Richmond, California, is part of Great Canadian Entertainment, a company that operates in the gaming and hospitality sectors. Established in 2004, River Rock Casino Resort features a range of services including casino gaming, hotel accommodations, and live entertainment. The resort is known for its luxurious amenities and offers a variety of gaming options, including slots, table games, and a sportsbook. The casino has made strides in integrating sports betting into its offerings, providing patrons with the opportunity to place bets on various sporting events. Despite its involvement in sports betting, the resort's primary focus remains on a comprehensive entertainment experience that includes dining and live shows.

17. Santa Anita Park

• Website: santaanita.com
• Ownership type: Private
• Headquarters: Arcadia, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1934
• Headcount: 501-1000
• LinkedIn: santa-anita-park

Santa Anita Park, located in Arcadia, California, is a historic horse racing venue established in 1934. Known for its beautiful Art Deco architecture and stunning views of the San Gabriel Mountains, the park is often referred to as 'The Great Race Place.' It hosts a variety of Thoroughbred racing events, including the prestigious Santa Anita Derby and the Santa Anita Handicap, as well as the Breeders' Cup, which is a highlight in the horse racing calendar. Santa Anita Park offers numerous wagering opportunities, allowing patrons to place bets on live races and simulcast events. The venue also features dining experiences and hosts special events, catering to both racing enthusiasts and families. With a commitment to horse care and safety, Santa Anita Park has implemented rigorous medication policies and veterinary oversight to ensure the welfare of the horses. The park is part of the 1/ST Racing group, which enhances its online betting capabilities through platforms like 1/ST Bet, further integrating it into the sports betting industry.

18. AccessElite

• Website: accesselitenow.com
• Ownership type: Private
• Headquarters: Newport Beach, California, United States (USA)
• Founded year: 2019
• Headcount: 11-50
• LinkedIn: access-elite-wellness

AccessElite, founded in 2019 and based in Newport Beach, California, is a private online casino platform that offers a variety of gambling services. The company caters to online gamblers by providing a user-friendly interface and secure transactions. AccessElite features a range of games, including baccarat, slots, and various table games, alongside its sports betting options. The platform aims to deliver a reliable gaming experience, appealing to both casual players and serious gamblers. Despite being a relatively small company with around 27 employees, AccessElite has positioned itself within the competitive online gambling industry, focusing on customer satisfaction and security.

19. OK Play

• Website: okplay.co
• Ownership type: Corporate
• Headquarters: Los Angeles, California, United States (USA)
• Latest funding: June 2022
• Founded year: 2019
• Headcount: 11-50
• LinkedIn: theokcompany

OK Play, based in Los Angeles, California, is a corporate entity founded in 2019. It operates the KOLAM4D platform, which offers a range of online gaming services, including online slots, live casino games, and sports betting. The company aims to cater to consumers seeking entertainment through its accessible and user-friendly platform. With a workforce of approximately 31 employees, OK Play is positioned to meet the demands of the digital entertainment market, particularly in the online gaming sector. The platform's inclusion of a sportsbook highlights its involvement in sports betting, although it also provides other gaming options, indicating a broader focus within the online gaming industry.

20. WagerWire

• Website: wagerwire.com
• Ownership type: Venture Capital
• Headquarters: Los Angeles, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Seed, $3.0M, July 2022
• Founded year: 2019
• Headcount: 11-50
• LinkedIn: wagerwire

WagerWire, founded in 2019 and based in Los Angeles, California, is a sports betting platform that allows users to buy, sell, and trade sports bets and fantasy lineups. The company aims to empower sports bettors and fantasy players by providing tools that help track performance and optimize betting strategies. WagerWire integrates with various betting accounts, allowing users to manage their bets and fantasy lineups in one place. The platform features a Bet Value Calculator and a community-driven approach, offering original content to enhance user engagement. In July 2022, WagerWire secured $3 million in seed funding, reflecting its potential in the competitive sports gaming industry. The company has been recognized for its innovative approach, being shortlisted for industry awards and receiving positive media coverage for its disruptive model.

21. DubClub

• Website: dubclub.win
• Ownership type: Venture Capital
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: United States (USA) 79%, Spain 7%, Cayman Islands 7%, Other 7%
• Latest funding: Series A, $7.5M, September 2024
• Founded year: 2021
• Headcount: 11-50
• LinkedIn: dubclub-win

DubClub, founded in 2021 and based in San Francisco, California, is a sports betting platform designed to connect cappers with subscribers seeking premium sports betting advice. The platform allows cappers to monetize their expertise while providing subscribers with timely insights to enhance their betting strategies. DubClub operates through a subscription model, fostering a community-driven experience for sports fans. The company has gained traction, boasting over 1 million members and 2,000 cappers/creators, with millions of monthly play views. Recently, DubClub secured $7.5 million in Series A funding, reflecting its growth potential and relevance in the sports betting industry. The team comprises former professional and collegiate athletes, which adds credibility to their offerings and enhances their engagement with the sports betting community.

22. a Dog's Life

• Website: dogslife.biz
• Ownership type: Private
• Headquarters: Palo Alto, California, United States (USA)
• Founded year: 2004
• Headcount: 51-200
• LinkedIn: a-dog%27s-life

a Dog's Life, also known as B9 Casino, is an online gaming platform based in Palo Alto, California, founded in 2004. The company operates a comprehensive online casino that includes a wide array of gaming options such as casino games, sports betting, and lottery services. B9 Casino emphasizes user-friendly access and offers 24/7 customer support to enhance the gaming experience for its users. The platform is particularly notable for its sportsbook, which features a variety of sports, including football, basketball, and esports, catering to a broad audience of sports enthusiasts. B9 Casino is licensed by multiple regulatory bodies, ensuring a secure environment for its players. The company has not reported any funding, indicating it operates independently without external financial backing.

23. DF Consulting

• Website: dfconsulting.info
• Ownership type: Private
• Headquarters: Los Angeles, California, United States (USA)
• Founded year: 2006
• Headcount: 1-10
• LinkedIn: df-consulting

DF Consulting, based in Los Angeles, California, is a private company founded in 2006. It operates BOLA16, an online betting platform that specializes in football betting, particularly targeting the Indonesian market. BOLA16 offers a variety of betting options, including live betting, which enhances user engagement and caters to the preferences of sports enthusiasts. The platform is designed to provide a seamless and user-friendly experience, promoting interaction through bonuses and real-time betting features. DF Consulting has not reported any funding, indicating that it may be self-sustained or operating on a smaller scale without external investment. The company employs a small team, reflecting its niche focus within the sports betting industry.

24. ALT Sports Data, Inc.

• Website: altsportsdata.com
• Ownership type: Venture Capital
• Headquarters: San Diego, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: Seed, $5.0M, April 2025
• Founded year: 2021
• Headcount: 11-50
• LinkedIn: alt-sports-data-inc

ALT Sports Data, Inc., based in San Diego, California, is a sports data provider that specializes in alternative sports betting. Established in 2021, the company offers a range of services including data API solutions, betting market distribution, and affiliate revenue opportunities tailored for sportsbook operators and marketers. By leveraging exclusive data rights and proprietary trading platforms, ALT Sports Data aims to enhance engagement within the sports betting ecosystem. The company has formed strategic partnerships with various leagues, such as Athletes Unlimited and the National Hot Rod Association, to provide comprehensive betting data and market insights. With a recent funding round of $5 million, ALT Sports Data is positioned to expand its reach and influence in the sports betting sector, catering to a growing community of sports bettors interested in action and alternative sports.

Sports Betting Insights: Key Companies in California

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