FJ Labs

FJ Labs, established in 2015 and headquartered in New York, is a stage-agnostic investment firm focusing on marketplaces and consumer-facing startups. It invests in seed and series A rounds, with a typical investment range of $50,000 to $5,000,000. The firm's portfolio includes notable companies such as Alibaba Group, Beepi, BrightRoll, Betterment, Adore Me, and Earnest, spanning sectors like e-commerce, fintech, and ad tech.

Matias Barbero

Investor

Zineb Belghiti

Operations Associate

William Guillouard

Operating Partner

Arne Halleraker

Partner

Christopher Keshian

Investor

Ariel Lebowits

CFO

Jose Marin

Co-Founder

Güimar Vaca Sittic

Venture Partner

Jeff Weinstein

Partner

Past deals in Sports

Playtomic

Venture Round in 2025
Playtomic is the largest platform for racket sport clubs and players globally, founded in 2017 and headquartered in Madrid, Spain. The company operates an online sports court booking platform that aims to serve as a social network for sports enthusiasts. Its platform allows users to reserve courts, connect with players of similar skill levels, and engage in a community focused on sports learning. By facilitating these interactions, Playtomic helps sports clubs optimize the utilization of their facilities and transition into the digital age.

HomeTeam Live

Series A in 2025
HomeTeam Live is a streaming platform that specializes in broadcasting amateur sports events, enabling users to watch local sports from any location. The company's technology delivers broadcast-quality video, which enhances the viewing experience for parents, family members, coaches, athletes, fans, and scouts. By providing this service, HomeTeam Live aims to increase league viewership and offer sports enthusiasts the opportunity to support their home teams, regardless of their physical presence at the events.

CollX

Series A in 2025
CollX is a technology-driven company founded in 2021 and based in Haddonfield, New Jersey. It specializes in a financial application that allows users to scan sports cards, instantly identifying them and determining their market value. By utilizing specialized technology, CollX provides users with a transparent view of the worth of their collectibles. The platform facilitates buying and selling among collectors, enabling them to add cards to their collections, follow other collectors, and engage in trading through a marketplace. Users can create ad-hoc lots and trade, fostering a vibrant community for sports card enthusiasts.

OutFit Training

Seed Round in 2024
OutFit Training is a fitness company that offers a range of private training and group fitness classes in parks and neighborhoods. It focuses on providing various workout programs designed to help customers achieve their fitness goals. By utilizing outdoor and mobile workout modules, OutFit Training ensures that individuals can access tailored fitness training conveniently near their locations. This approach aims to foster an environment that promotes health and well-being for all participants.

The Curling Group

Seed Round in 2024
The Curling Group is a business specializing in the sports industry, with a focus on transforming the sport of curling. It achieves this through strategic investments, innovative approaches, and the development of engaging content. The company also offers financial consulting services, including mergers and acquisitions advisory, deal structuring, valuation, and negotiation, to assist businesses in navigating ownership or asset transfers and achieving their financial objectives.

OutFit Training

Pre Seed Round in 2023
OutFit Training is a fitness company that offers a range of private training and group fitness classes in parks and neighborhoods. It focuses on providing various workout programs designed to help customers achieve their fitness goals. By utilizing outdoor and mobile workout modules, OutFit Training ensures that individuals can access tailored fitness training conveniently near their locations. This approach aims to foster an environment that promotes health and well-being for all participants.

SidelineSwap

Venture Round in 2023
SidelineSwap, LLC is an online marketplace focused on buying, selling, and trading sporting goods. Established in 2012 and based in Franklin Square, New York, the platform caters to a wide range of sports, including lacrosse, hockey, soccer, skiing, baseball, softball, basketball, football, golf, and snowboarding. It offers a diverse selection of products, encompassing new, used, and vintage items, as well as apparel, electronics, and gear for various sports activities. In addition to facilitating individual transactions, SidelineSwap collaborates with retailers and brands to enhance circular shopping experiences through its trade-in program and marketplace technology.

CollX

Seed Round in 2023
CollX is a technology-driven company founded in 2021 and based in Haddonfield, New Jersey. It specializes in a financial application that allows users to scan sports cards, instantly identifying them and determining their market value. By utilizing specialized technology, CollX provides users with a transparent view of the worth of their collectibles. The platform facilitates buying and selling among collectors, enabling them to add cards to their collections, follow other collectors, and engage in trading through a marketplace. Users can create ad-hoc lots and trade, fostering a vibrant community for sports card enthusiasts.

Playtomic

Series C in 2022
Playtomic is the largest platform for racket sport clubs and players globally, founded in 2017 and headquartered in Madrid, Spain. The company operates an online sports court booking platform that aims to serve as a social network for sports enthusiasts. Its platform allows users to reserve courts, connect with players of similar skill levels, and engage in a community focused on sports learning. By facilitating these interactions, Playtomic helps sports clubs optimize the utilization of their facilities and transition into the digital age.

Matchday

Seed Round in 2022
Matchday is a gaming platform tailored for football enthusiasts, enabling users to collect and trade digital cards within a marketplace. The platform merges video games, sports, and Web3 technology to create an engaging ecosystem for casual football games. Users have genuine ownership of the cards and digital items they acquire, allowing them to build their dream teams and enjoy seamless gameplay.

Pikkit

Venture Round in 2022
Pikkit is a consumer software company based in New York, founded in 2020, that operates within the betting industry. It has developed a social sports betting application that consolidates legal sportsbook accounts, allowing users to manage their bets in one place. The platform enhances the betting experience by enabling users to stay informed about their friends' picks, share bets, and explore upcoming events while tracking the performance of top bettors. This functionality fosters interaction within the betting community and helps users gain insights into their betting strategies.

SX Network

Seed Round in 2022
SX Network operates a blockchain-based platform focused on sports betting, providing users with enhanced odds, transparency, and security for their funds. The platform integrates smart contracts with an on-chain community treasury, allowing for a decentralized prediction market that is governed by a prediction market-based system. This structure enables users to engage in sports betting while benefiting from the advantages of blockchain technology, such as improved trust and accountability in transactions. By combining these elements, SX Network aims to revolutionize the sports betting experience for its users.

Betr Holdings

Series A in 2022
Betr is a Miami-based company founded in 2022 that specializes in micro-betting, offering a direct-to-consumer platform for sports betting. The company aims to disrupt traditional gambling methods by providing a unique betting experience that allows users to place bets on every moment of a live sporting event. Betr emphasizes responsible play, equipping users with tools to manage their gambling activities and maintain control over their betting experiences. This focus on responsible gaming ensures that users can enjoy the thrill of sports betting while staying within their personal limits.

Playtomic

Series C in 2021
Playtomic is the largest platform for racket sport clubs and players globally, founded in 2017 and headquartered in Madrid, Spain. The company operates an online sports court booking platform that aims to serve as a social network for sports enthusiasts. Its platform allows users to reserve courts, connect with players of similar skill levels, and engage in a community focused on sports learning. By facilitating these interactions, Playtomic helps sports clubs optimize the utilization of their facilities and transition into the digital age.

Padel Haus

Seed Round in 2021
Padel Haus operates premium padel clubs in New York City, with its flagship location opening in July 2022. The company caters to padel players and sports enthusiasts of all skill levels, offering a multidimensional space that includes year-round indoor courts and a professional academy. Padel Haus emphasizes a socially engaging environment, providing opportunities for practice, competition, and socialization for both kids and adults. The establishment features state-of-the-art amenities and curated programming, positioning itself at the forefront of the rapidly growing sport of padel.

Playtomic

Series A in 2020
Playtomic is the largest platform for racket sport clubs and players globally, founded in 2017 and headquartered in Madrid, Spain. The company operates an online sports court booking platform that aims to serve as a social network for sports enthusiasts. Its platform allows users to reserve courts, connect with players of similar skill levels, and engage in a community focused on sports learning. By facilitating these interactions, Playtomic helps sports clubs optimize the utilization of their facilities and transition into the digital age.

SidelineSwap

Series A in 2020
SidelineSwap, LLC is an online marketplace focused on buying, selling, and trading sporting goods. Established in 2012 and based in Franklin Square, New York, the platform caters to a wide range of sports, including lacrosse, hockey, soccer, skiing, baseball, softball, basketball, football, golf, and snowboarding. It offers a diverse selection of products, encompassing new, used, and vintage items, as well as apparel, electronics, and gear for various sports activities. In addition to facilitating individual transactions, SidelineSwap collaborates with retailers and brands to enhance circular shopping experiences through its trade-in program and marketplace technology.

Playtomic

Venture Round in 2020
Playtomic is the largest platform for racket sport clubs and players globally, founded in 2017 and headquartered in Madrid, Spain. The company operates an online sports court booking platform that aims to serve as a social network for sports enthusiasts. Its platform allows users to reserve courts, connect with players of similar skill levels, and engage in a community focused on sports learning. By facilitating these interactions, Playtomic helps sports clubs optimize the utilization of their facilities and transition into the digital age.

Let’s Do This

Seed Round in 2019
Let’s Do This is an online marketplace that connects athletes with a wide range of endurance events, including running, cycling, triathlons, and obstacle races. Founded in 2016 by Alex Rose and Sam Browne, the platform serves as a comprehensive resource for both race organizers and participants. It enables race organizers to effectively reach a dedicated community of endurance sports enthusiasts, while providing users with detailed event information, news, and special offers. Headquartered in San Francisco, California, with an office in London, United Kingdom, Let’s Do This aims to make it easy for individuals to find and book a variety of races, from local 5k fun runs to major international competitions.

FlipGive

Series A in 2019
FlipGive is a team funding platform that aims to transform how youth sports teams raise money. It enables teams to manage their funds effectively while offering a cash-back system for everyday purchases, including groceries, gas, clothing, equipment, dining, and travel. By allowing members to pool their spending, FlipGive creates a streamlined way for sports teams to earn cash from their routine shopping. The platform also facilitates donation collection, making fundraising more accessible and efficient. With a focus on the North American youth sports market, FlipGive connects over 700 merchant partners directly with teams, thereby enhancing customer acquisition and loyalty for brands while supporting the financial needs of sports organizations.

Playtomic

Venture Round in 2019
Playtomic is the largest platform for racket sport clubs and players globally, founded in 2017 and headquartered in Madrid, Spain. The company operates an online sports court booking platform that aims to serve as a social network for sports enthusiasts. Its platform allows users to reserve courts, connect with players of similar skill levels, and engage in a community focused on sports learning. By facilitating these interactions, Playtomic helps sports clubs optimize the utilization of their facilities and transition into the digital age.

SidelineSwap

Series A in 2018
SidelineSwap, LLC is an online marketplace focused on buying, selling, and trading sporting goods. Established in 2012 and based in Franklin Square, New York, the platform caters to a wide range of sports, including lacrosse, hockey, soccer, skiing, baseball, softball, basketball, football, golf, and snowboarding. It offers a diverse selection of products, encompassing new, used, and vintage items, as well as apparel, electronics, and gear for various sports activities. In addition to facilitating individual transactions, SidelineSwap collaborates with retailers and brands to enhance circular shopping experiences through its trade-in program and marketplace technology.

Let’s Do This

Pre Seed Round in 2018
Let’s Do This is an online marketplace that connects athletes with a wide range of endurance events, including running, cycling, triathlons, and obstacle races. Founded in 2016 by Alex Rose and Sam Browne, the platform serves as a comprehensive resource for both race organizers and participants. It enables race organizers to effectively reach a dedicated community of endurance sports enthusiasts, while providing users with detailed event information, news, and special offers. Headquartered in San Francisco, California, with an office in London, United Kingdom, Let’s Do This aims to make it easy for individuals to find and book a variety of races, from local 5k fun runs to major international competitions.

Rep The Squad

Seed Round in 2017
Rep the Squad, Inc. is a subscription-based service specializing in the rental of officially licensed sports team jerseys. Founded in 2017 and headquartered in Seattle, Washington, the company offers fans a unique opportunity to choose from a diverse selection of professional sports jerseys, which are delivered one at a time. This model allows enthusiasts to wear different jerseys regularly, enhancing their connection to their favorite teams. Co-founded by e-commerce veteran Brian Watkins, Rep the Squad has garnered support from notable investors, including Madrona Venture Group and Maveron, as well as partnerships with prominent athletes like Doug Baldwin and Richard Sherman, who serves as a brand ambassador. The platform aims to simplify and amplify the sporting experience for fans.

FanDuel

Series E in 2017
FanDuel, established in 2009, is a leading online gaming company that operates a fantasy sports platform. It offers users the opportunity to participate in one-day or season-long fantasy sports games, including football, baseball, hockey, and basketball, with cash prizes at stake. Additionally, FanDuel provides sports betting, racing, and casino games. The company, headquartered in New York with an office in Edinburgh, UK, has over 100 employees and is a subsidiary of Flutter Entertainment plc.

Tracksmith

Venture Round in 2017
Tracksmith is an American sports apparel brand, established in 2013 by Luke Scheybeler and Matt Taylor, that specializes in designing and manufacturing performance apparel for runners. Based in Wellesley, Massachusetts, the company offers a range of products, including tops, bottoms, and accessories for both men and women, emphasizing classic designs over modern neon styles. In addition to its apparel line, Tracksmith publishes a sports magazine and distributes its products through specialty running stores across the United States, as well as through its online platform, reaching customers in various countries, including Australia, Canada, and several European nations.

SidelineSwap

Seed Round in 2016
SidelineSwap, LLC is an online marketplace focused on buying, selling, and trading sporting goods. Established in 2012 and based in Franklin Square, New York, the platform caters to a wide range of sports, including lacrosse, hockey, soccer, skiing, baseball, softball, basketball, football, golf, and snowboarding. It offers a diverse selection of products, encompassing new, used, and vintage items, as well as apparel, electronics, and gear for various sports activities. In addition to facilitating individual transactions, SidelineSwap collaborates with retailers and brands to enhance circular shopping experiences through its trade-in program and marketplace technology.

SeatGeek

Series C in 2015
SeatGeek, Inc. is a mobile ticketing marketplace and ticket search engine that facilitates the buying and selling of tickets for sports, concerts, and theater events. Founded in 2009 and headquartered in New York, the company also maintains offices in the United Kingdom, Israel, the Netherlands, Australia, and Italy. SeatGeek's platform aggregates ticket listings from various sources, presenting users with a comprehensive view of available options. It employs a unique feature called 'Deal Score,' which rates tickets on a scale from 0 to 100, helping consumers identify the best value for their purchases. Additionally, SeatGeek offers an event discovery tool that utilizes user preferences to suggest local events that align with individual tastes. By streamlining the ticketing process and providing detailed information about venues and pricing, SeatGeek aims to enhance the overall experience for fans.

FanDuel

Series B in 2011
FanDuel, established in 2009, is a leading online gaming company that operates a fantasy sports platform. It offers users the opportunity to participate in one-day or season-long fantasy sports games, including football, baseball, hockey, and basketball, with cash prizes at stake. Additionally, FanDuel provides sports betting, racing, and casino games. The company, headquartered in New York with an office in Edinburgh, UK, has over 100 employees and is a subsidiary of Flutter Entertainment plc.
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