finance

Tinder Co-Founder Justin Mateen Grabs $247.5 Million for a New Fund

Harri Weber

Harri is dot.LA's senior finance reporter. She previously worked for Gizmodo, Fast Company, VentureBeat and Flipboard. Find her on Twitter and send tips on L.A. startups and venture capital to harrison@dot.la.

Tinder Co-Founder Justin Mateen Grabs $247.5 Million for a New Fund
Photo by Marius Christensen on Unsplash

JAM Fund, the venture capital firm launched by former Tinder chief marketing officer Justin Mateen, secured nearly a quarter of a billion dollars over the summer for a new fund.

A prolific angel investor, Mateen told Business Insider earlier this year he had a preference for founders who have a "chip on their shoulder."

Mateen, who co-founded the dating app that brought the world "swipe right" and countless unwelcome sexual solicitations, locked down his first investment for the recent fund on July 16. Since then he's raised at least $247.5 million from 15 undisclosed limited partners, a recent regulatory filing reveals.

The offering described in the U.S. Securities and Exchange Commission filing suggests that JAM Fund may raise yet more capital for its second fund. Under his principal place of business, the disclosure lists the Bel Air mansion that Mateen bought from "Full House" star Lori Loughlin and designer Mossimo Giannulli, after the couple became a key focal point in the college admissions scandal.

Mateen did not respond to a request for comment on his plans for the fund.

In addition to his personal deals, Mateen's firm has made 36 investments since August 2018, per CrunchBase, counting at least five startups this past summer. Recent deals include funding for Menlo Park-based restaurant delivery services company Owner.com and Brazil-based Kovi, which rents cars to people who drive for ride apps.

The former CMO was suspended from Tinder in 2014 after co-founder Whitney Wolfe Herd filed a sexual harassment and discrimination lawsuit against the company, describing Mateen as "verbally controlling and abusive." The suit was settled for "just over $1 million," without admission of wrongdoing, per multiple reports. Mateen was fired from the dating app company that year, a Tinder spokesperson told dot.LA. After this story was published, a spokesperson for Mateen described the nature of his departure differently. "Justin resigned; he was not fired," the spokesperson said. Wolfe went on to create Bumble.

JAM Fund frequently invests in early-stage startups outside the U.S., such as Venezuela-based food delivery app Yummy and Kenya-based restaurant inventory app Kibanda TopUp.

In Los Angeles, Mateen backed creator economy startup Voices as well as shopping subscription company FabFitFun.

Correction: This story has been updated to reflect that Whitney Wolfe Herd sued Tinder, not Mateen.

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VC Giants Back LA Defense Tech Startup

Grace Lee
VC Giants Back LA Defense Tech Startup

🔦 Spotlight

Hello Los Angeles, and happy Friday!

Memorial Day Weekend is finally here, and it seems even PCH got the memo, just in time for those coastal drives to kick off summer, traffic jams included. Speaking of navigation, El Segundo based startup CX2 has charted its own impressive course this week, securing $31 million in a Series A round led by Point72 Ventures, with participation from Andreessen Horowitz, 8VC, and Pax Ventures, to boost its mission in electronic warfare.

Electronic warfare (EW), for those of us who aren't regulars at the Pentagon, involves the tactical use of electromagnetic energy to control the spectrum, essentially jamming or confusing enemy communications and radar systems. CX2 was founded by a diverse and experienced group: Nathan Mintz, who brings deep expertise in defense technology from previous ventures such as Epirus and Spartan; Mark Trefgarne, a software entrepreneur known for a successful acquisition by Meta; Lee Thompson, an expert RF engineer previously with SpaceX; and Porter Smith, whose practical insights stem from his background as a U.S. Army helicopter pilot and subsequent experience as an investor.

The new funds will help CX2 scale its team and accelerate the development of advanced tools, including autonomous drones and specialized signals-intelligence systems. These innovations promise precision interference without collateral disruptions, addressing critical defense capability gaps identified by industry experts.

With tensions escalating globally, there's big demand for next-gen defense solutions, and CX2’s technology positions them as a major player in shaping future electronic battlespaces.

Dive deeper into the details and check out this week's roundup of LA’s venture deals and acquisitions below.

Here's to a weekend filled with sunshine, clear roads (fingers crossed), and tech that keeps pushing boundaries!

🤝 Venture Deals

LA Companies

  • Axle Health, founded by former Uber execs, raised $10M in Gaa Series A round led by F-Prime Capital to expand its AI-powered logistics platform for home healthcare. The software streamlines scheduling, routing, and patient engagement, and is now used by major health systems and agencies across all 50 states. The company has seen 10x revenue growth over the past year. - learn more
  • Promise, a generative AI studio based in Venice, California, has secured a strategic investment from Google's AI Futures Fund, alongside contributions from The North Road Company, and others. This funding will support Promise's integration of advanced AI technologies into its proprietary production platform, MUSE, and facilitate collaborations with Google's DeepMind researchers to push the boundaries of AI-driven storytelling. The studio plans to commence production on its first feature-length film this year, marking a significant step in its mission to blend human creativity with cutting-edge AI tools in filmmaking. - learn more
  • Final Boss Sour, a Los Angeles-based snack brand blending gaming nostalgia with sour fruit treats, raised $4M in a Seed 2 round. The funds will go toward expanding distribution, product innovation, and creator partnerships. The company also launched a new tropical sampler box featuring real fruit flavors like mango, pineapple, and kiwi. - learn more
  • VUZ, a UAE-based immersive media platform, raised $12M in a pre-Series C round led by the International Finance Corporation with participation from CrossWork.us, among others, to fuel global expansion and enhance its AI-powered streaming experiences. The funding brings its total raised to over $35M and will support growth across the U.S., Africa, Asia, and the Middle East. VUZ, now EBITDA positive, hosts 30,000+ hours of immersive content and has exclusive deals with leagues like LaLiga and Serie A. - learn more

      LA Venture Funds

      • B Capital co-led Data Sutram's $9M Series A funding round, supporting the company's expansion of its AI-driven fraud detection platform into sectors like cryptocurrency, gaming, and insurance. The investment will also aid in strengthening Data Sutram's AI capabilities and facilitating its international growth into markets such as the Middle East and Southeast Asia. - learn more
      • Upfront Ventures led Clair's $23.2M Series B funding round, reinforcing its commitment to the fintech startup it initially backed during the seed stage. Clair provides embedded earned wage access (EWA) solutions, allowing employees to access their earnings instantly through integrations with payroll and workforce management platforms like Gusto and TriNet. The new funding will support Clair's expansion across more than 29,000 business locations and enhance its partnerships with additional HR and payroll providers. - learn more
      • Rebel Fund participated in Keep's recent C$108M funding round, supporting the Toronto-based fintech's mission to modernize small business banking in Canada. Keep offers an all-in-one financial platform tailored to Canadian small businesses, addressing challenges like outdated systems and limited access to credit. The funding will help Keep expand its services, which include business credit cards, expense tracking, and multi-currency accounts, to more entrepreneurs across the country. - learn more
      • MarcyPen Capital Partners participated in SparkCharge's $30.5M funding round, supporting the expansion of its mobile, off-grid EV charging services across North America. This investment will help SparkCharge scale its Charging-as-a-Service model, enabling fleets to adopt electric vehicles without the need for permanent infrastructure. - learn more
      • Matter Venture Partners participated in Biostate AI's $12M Series A funding round, supporting the Houston-based startup's mission to revolutionize molecular diagnostics through affordable RNA sequencing and generative AI. Biostate AI aims to build a comprehensive RNA sequencing dataset to train AI models capable of predicting disease progression and treatment responses, thereby advancing precision medicine. - learn more
      • Prototype Capital participated in Sensmore's €6.5M funding round, supporting the German robotics startup's mission to retrofit heavy machinery with AI-driven automation. Sensmore's technology enables real-time automation of complex tasks in industries like construction and mining. The investment will help expand Sensmore's Physical AI platform, enhancing productivity and safety in industrial operations. - learn more

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            Forget Traffic: Air Taxis Are Coming to LA28

            Grace Lee
            Forget Traffic: Air Taxis Are Coming to LA28

            🔦 Spotlight

            Hello Los Angeles,

            The future just got a flight plan, and it includes skipping traffic for the 2028 Olympics.

            Image Source: Archer

            This week, Santa Clara-based Archer Aviation made headlines (and history) by being named the official air taxi provider for the LA28 Olympic and Paralympic Games and Team USA. Yes, that means electric vertical takeoff and landing (eVTOL) aircraft will be soaring above the gridlocked freeways, whisking athletes, officials, and perhaps a few lucky spectators through LA’s famously congested skies.

            This isn’t just a flashy PR stunt (although, let’s be honest, it is peak LA). It’s a strategic move to redefine how we move around the city, especially during one of the largest global events ever to hit Southern California. In partnership with the LA28 Organizing Committee, Archer plans to deploy its Midnight aircraft, an all-electric air taxi that promises ultra-quiet, zero-emission rides from point A to point OMG-I’m-not-in-traffic.

            While Archer is headquartered in Santa Clara, it has deep ties to the LA tech ecosystem. United Airlines, one of its major partners, has previously announced plans to establish eVTOL routes between downtown and LAX. Pair that with this new Olympic milestone and we’re looking at LA as ground zero for what could become the world’s first large-scale urban air mobility network.

            Of course, there are still regulatory hurdles, infrastructure needs, and airspace coordination issues to iron out before we can book our sky ride to the Coliseum. But make no mistake, this announcement is a moonshot moment for LA tech, mobility, and the future of Olympic-scale transportation.

            We’ll be keeping our feet on the ground (for now), but we’ll definitely be watching the skies.

            Catch you next week ✈️✨

            🤝 Venture Deals

            LA Companies

            • Akido, a Los Angeles-based health tech company, has raised $60M in Series B funding led by Oak HC/FT to expand the reach of its AI-powered clinical tool, ScopeAI. The platform assists physicians by generating clinical questions, documenting patient responses, and drafting care plans in real time. The funding will help Akido scale its technology across its provider network and expand into new markets like New York City. - learn more
            • Reflect Orbital, a startup developing satellite-based sunlight delivery systems, has raised $20M in a Series A round led by Lux Capital. The company plans to use the funding to expand its team, scale operations, and prepare for its first satellite launch in Spring 2026. Reflect Orbital’s technology aims to reflect sunlight from space to Earth, enabling nighttime illumination for energy, remote operations, and civil infrastructure. - learn more
            • Rolli, an AI-powered platform designed to support fact-based journalism, has received an investment from the NYU Impact Investment Fund (NIIF). This marks NIIF's first investment in a media company, underscoring its commitment to backing ventures that enhance democratic institutions through innovation. Rolli's platform connects journalists with a diverse range of vetted experts, aiming to streamline news production and promote equitable representation in media. The funding will help Rolli expand its reach and further develop tools that empower journalists to produce accurate and impactful reporting. - learn more

              LA Venture Funds

              • CIV and Wonder Ventures participated in The Nuclear Company’s $46.3M Series A round to support its plan to develop large-scale nuclear reactor sites across the U.S. CIV co-founder Patrick Maloney also co-founded the company, which is taking a “design-once, build-many” approach to modernize nuclear construction. The funding will help meet rising energy demands from sectors like AI and data centers. - learn more
              • WndrCo participated in Cartwheel's recent $10M funding round. Cartwheel is an AI-driven 3D animation startup that enables creators to generate rigged animations from text prompts and videos. The funding will support Cartwheel's efforts to simplify and democratize 3D animation production. - learn more
              • Crosscut Ventures participated in Solestial's $17M Series A funding round, which aims to scale the company's production of radiation-hardened, self-healing silicon solar panels for space applications. Solestial plans to increase its manufacturing capacity to 1 megawatt per year, matching the combined annual output of all U.S. and EU III-V space solar companies. This investment supports the growing demand for cost-effective, high-performance power systems in the expanding space industry. - learn more
              • Upfront Ventures participated in Tern's $13M Series A funding round, adding to its earlier $4M seed investment in the travel tech startup. Tern offers an all-in-one platform for travel advisors, streamlining itinerary building, CRM, and commission tracking. The new funding will help Tern enhance its product offerings and expand support for its growing user base. - learn more
              • Dangerous Ventures participated in Verdi's $6.5M seed funding round, supporting the Vancouver-based agtech startup's mission to modernize farm irrigation systems through AI-powered automation. Verdi's technology retrofits existing infrastructure, enabling precise, row-level control of irrigation, which helps farmers reduce water usage and labor costs. The investment aligns with Dangerous Ventures' focus on climate resilience and sustainable food systems. - learn more
              • Pinegrove Capital Partners participated in Saildrone's recent $60M funding round, supporting the company's expansion of its autonomous maritime surveillance technology into Europe. The investment will aid in deploying Saildrone's uncrewed surface vehicles for enhanced maritime security and defense applications across European waters. - learn more
              • Starburst Ventures participated in a €2 million seed funding round for French defense tech startup Alta Ares, which specializes in embedded AI and MLOps solutions for military applications. Alta Ares' technologies, including the Gamma platform for real-time video analysis and the Ulixes platform for managing operational data lifecycles, operate autonomously without the need for internet or cloud connectivity. This funding will support the industrialization of these solutions and expand their deployment across European armed forces and NATO allies. - learn more
              • Nomad Ventures participated in Stackpack’s recent $6.3M seed funding round, supporting the company's mission to streamline vendor management for modern businesses. Stackpack offers an AI-driven platform that provides finance and IT teams with a centralized system to oversee third-party vendors, manage renewals, and mitigate compliance risks. The investment will enable Stackpack to expand its operations, enhance its platform, and introduce new features like the "Requests & Approvals" tool, aimed at simplifying vendor onboarding and procurement processes. - learn more
              • Tachyon Ventures participated in Stylus Medicine's $85M Series A funding round, supporting the biotech company's development of in vivo genetic medicines. Stylus aims to simplify gene editing by enabling precise, durable CAR-T therapies delivered directly inside the body, potentially transforming treatment for various diseases. - learn more
              • Up.Partners led a $28M Series A funding round for WakeCap, a construction tech startup that uses sensor-powered platforms to deliver real-time workforce visibility and site intelligence. WakeCap’s system tracks labor hours, safety, and productivity across large-scale projects, with over 150 million labor hours already monitored. The new funding will help the company expand globally, enhance product features, and grow its engineering and customer success teams. - learn more


                LA Exits

                • MediaPlatform, a leading provider of enterprise video solutions, has been acquired by Brandlive, a company renowned for bringing the magic of television to business communications. This strategic acquisition aims to enhance Brandlive's capabilities in delivering high-scale, reliable CEO town halls and global corporate broadcasts. By integrating MediaPlatform's robust infrastructure with Brandlive's creative video tools and production services, the combined entity seeks to offer more engaging and authentic internal content experiences for enterprise clients. - learn more
                • RHQ Creative, a studio renowned for its competitive Fortnite training maps, has been acquired by JOGO, the game development company founded by popular creator Typical Gamer (Andre Rebelo). This acquisition aims to bolster JOGO's expansion into the competitive gaming arena by integrating RHQ's expertise in skill-building and training map design. RHQ Creative, co-founded by Fortnite pro Quinn Gannon (RichHomieQuinn) and Sean Lugo, has achieved over 20 million map visits and 200 million hours of playtime. The deal includes full ownership of RHQ's map catalog and the addition of its team to JOGO, enhancing the company's capabilities in developing high-quality, competitive gaming experiences. - learn more

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                    This LA Startup Wants to Make It Rain and Just Raised $25M to Do It

                    Grace Lee
                    This LA Startup Wants to Make It Rain and Just Raised $25M to Do It

                    🔦 Spotlight

                    Hello LA!

                    While most tech headlines are busy chasing AI chatbots and flying taxis, one startup in El Segundo is aiming a little higher. Literally.

                    Rainmaker just secured$25 million in Series A funding to expand its cloud-seeding drone technology. The round was led by Lowercarbon Capital, with participation from Starship Ventures, 1517 Fund, Long Journey Ventures, Naval Ravikant, and others.

                    Their idea is simple but urgent. Instead of relying on old-school aircraft to spray rain-making particles across the sky, Rainmaker uses AI-powered drones that find and seed clouds with pinpoint accuracy. It is faster, more affordable, and could reshape how regions fight back against droughts.

                    California's ongoing water struggles have made it clear that simply "saving" water is not enough. Cities and entire economies need new tools to create it. Rainmaker plans to use the funding to grow its fleet, invest in atmospheric science, and expand commercial partnerships with utilities and governments searching for solutions.

                    Bigger picture, Rainmaker is part of a growing shift in LA's tech ecosystem. While software remains dominant, more investors and founders are quietly betting on "hard tech" that addresses real-world problems like water, energy, and infrastructure.

                    It is not just about apps anymore. It is about survival tech.

                    With the skies getting hotter and the reservoirs getting lower, the next great tech export out of LA might not be entertainment or social media. It could be rain.

                    Stay tuned…

                    🤝 Venture Deals

                    LA Companies

                      • SimpleClosure, a Santa Monica-based startup that automates the business shutdown process, has raised a $15M Series A funding round led by TTV Capital. The company, which launched publicly in late 2023, helps startups and businesses navigate legal, regulatory, and compliance hurdles when closing down, using AI to streamline paperwork and communications. The new funding will support SimpleClosure’s platform growth and product expansion, as rising economic pressures create heightened demand for efficient dissolution solutions. - learn more

                        LA Venture Funds

                        • Alexandria Venture Investments participated in Haya Therapeutics’ $65M Series A funding round. Haya Therapeutics, which is developing precision RNA-guided medicines for chronic and age-related diseases, will use the capital to advance its lead therapeutic programs targeting heart failure and fibrosis. The company plans to expand its pipeline, invest in its discovery platform, and grow its team to accelerate clinical development. - learn more
                        • Griffin Gaming Partners led a $7M funding round for Fuse Games, a gaming studio focused on developing new original IP. Fuse Games, founded by industry veterans with experience at major gaming companies, plans to use the funds to accelerate production of its first title and expand its team as it builds ambitious new gaming experiences. - learn more
                        • Shamrock Capital has made a strategic growth investment in Neocol, a leading consulting platform that specializes in sales and AI-driven software solutions for subscription businesses. Neocol, which helps companies optimize revenue operations and digital transformations, plans to use the investment to accelerate its growth, expand its services, and further strengthen its leadership position in the Salesforce ecosystem. - learn more
                        • Trust Fund participated in a $7.2M seed funding round for Agree.com, an all-in-one platform that combines e-signature and integrated payments, aiming to streamline and speed up service agreements. The company plans to use the new capital to grow its engineering team, expand integrations, and enhance payment capabilities to help service providers close deals faster. - learn more
                        • Hyperlink Ventures participated in Orca AI’s $72.5M funding round. Orca AI, headquartered in London, develops AI-based navigation and collision-avoidance solutions to improve safety and efficiency for commercial shipping fleets. The funding will help Orca AI scale its autonomous shipping technologies, expand its team, and support global growth efforts. - learn more


                        LA Exits

                        • StoryFire, a social storytelling and video platform with over 2.5M users, has been acquired by Flashy Finance to launch a new platform called Flashy Social. The move aims to merge content creation with blockchain-powered financial tools, allowing creators to monetize through token incentives, streaming features, and community engagement. This acquisition supports Flashy Finance’s broader vision of building a cultural, creator-led financial ecosystem. - learn more
                        • Jaanuu, Inc., a Los Angeles-based medical apparel brand known for its stylish and functional scrubs, has been acquired in an asset sale by VentureOn Management, LLC. The acquisition includes substantially all of Jaanuu's assets, encompassing its intellectual property, inventory, and customer relationships. VentureOn Management plans to continue Jaanuu's operations, focusing on delivering high-quality medical apparel to healthcare professionals. - learn more
                        • Skechers has agreed to be acquired by 3G Capital in a deal valued at approximately $9.4 billion. Shareholders will receive either $63 per share in cash or $57 plus an equity unit in a new private parent company. Following the acquisition, Skechers will become privately held, maintain its Manhattan Beach headquarters, and continue to be led by its current management team. - learn more

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