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

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.

How to Navigate LA Tech Week 2026

🔦 Spotlight

Happy Friday, Los Angeles.

Next week, hundreds of tech events will take over the city, bringing founders, investors, engineers and creators together from October 12 through 18.

Calling LA Tech Week a conference does not quite capture the experience.

Presented by Andreessen Horowitz, Tech Week is a decentralized collection of panels, workshops, demonstrations and gatherings hosted independently by startups, venture firms and technology companies. There is no convention center or central stage. The programming stretches from Santa Monica and Venice to Culver City, Downtown, El Segundo and beyond.

In other words, the city is the venue.

AI remains the dominant theme for 2026, appearing across enterprise software, healthcare, finance, media and the creator economy. The schedule also reflects industries where Los Angeles has built a particular advantage, including aerospace, defense, robotics, advanced manufacturing, entertainment and consumer technology.

That range is what makes LA Tech Week distinct. It brings together the software companies shaping what comes next with the industries that already define Southern California.

The challenge is deciding where to show up.

Our advice: apply early and organize your schedule by neighborhood. Crossing from Santa Monica to Downtown may look manageable on a calendar created by someone who has never driven in Los Angeles.

To help you spend more time meeting people and less time crossing the city, we have organized each day’s events by location:

You can also browse the complete official LA Tech Week calendar.

Plan carefully, but do not fill every minute. The best conversation of the week may be the one that was never on your calendar.

More from this week’s LA startup and venture scene below.

🤝 Venture Deals

    LA Companies

    • El Segundo-based Gallatin AI raised a $50M Series A from new and existing investors including 8VC and Silent Ventures, bringing its total funding to $70M. The defense technology startup will expand its engineering team and advance Navigator, an AI platform that helps U.S. military units coordinate vehicle readiness, supplies, medical logistics and other mission-support operations. - learn more
    • Pasadena-based quantum computing startup Oratomic raised a $475M Series B at a $5.4B valuation, just three months after its Series A. ARCH Venture Partners, Spark Capital, Khosla Ventures, Index Ventures, General Catalyst and Bezos Expeditions co-led the round, bringing Oratomic’s total funding to $775M as it works toward a commercially viable, fault-tolerant quantum computer by 2030. - learn more
    • Torrance-based Fortastra raised a $30M Series A led by First In, with participation from Upfront Ventures, Space Capital, Rsquared, Side Door Ventures, ATX Ventures and existing investors. The company will use the capital to develop its next-generation maneuverable spacecraft, expand its engineering and operations teams and scale production of systems designed to protect critical assets in orbit. - learn more
    • Parallel Systems raised a $100M Series C led by AVP, with participation from Hillspire, Agility Global, Cobalt Capital, Anthos Capital, Congruent Ventures, Riot Ventures and Collaborative Fund. Founded by former SpaceX engineers, the company will use the funding to scale production and commercial deployment of its autonomous, battery-electric Panther rail vehicles, which are designed to make short-haul freight more competitive with trucking. - learn more
    • Gaming studio Gardens Interactive secured more than $35M in a Series B led by Lightspeed, with participation from Sequoia Capital, Index Ventures, Accel, Innovation Endeavors, Zenith Capital and other investors. The company will use the funding to launch and operate its debut social role-playing “strandbox” game, an evolving multiplayer world shaped by players’ actions and interactions. - learn more
    • Outer Spaces raised an $8M pre-seed round led by Upfront Ventures, with participation from Unlock Venture Partners, Mucker Capital and Genius Ventures. The startup is developing outdoor furnishings with integrated solar panels and batteries, turning backyards into sources of clean energy and backup power. - learn more
    • Furientis raised a $25M seed round led by Benchmark at a reported $125M valuation, following a $5M pre-seed announced in May. The defense startup will use the capital to scale production of lower-cost missile interceptors designed to be assembled quickly with readily available components, with a long-term goal of producing 1,000 systems annually at each factory. - learn more
    • Hiyo raised a $20.8M Series B led by Constellation Brands, with returning investor Live Nation also participating. The nonalcoholic beverage company will use the funding to expand its adaptogen- and nootropic-infused social tonics across more than 13,000 retail locations while growing its presence at hospitality venues and live events. - learn more
    LA Venture Funds
    • Navitas Capital participated in Vesta’s $30M Series B, which was led by Conversion Capital and included backing from several major mortgage lenders and financial institutions. The company will use the funding to scale its AI agents across mortgage origination, automating tasks such as application reviews, underwriting decisions and closing-document checks. - learn more
    • MTech Capital led Nettle’s oversubscribed $4.8M seed round, with participation from Project A Ventures, Sure Valley Ventures, Portfolio Ventures and Ventures Together. The insurtech startup will use the funding to expand across the U.S. and Europe while growing its AI platform, which helps commercial insurers identify property risks, accelerate inspections and generate reports. - learn more
    • Bonfire Ventures doubled down on Santé by participating in the company’s $15M Series A, which was led by FINTOP and included other returning investors. The New York startup will use the funding to expand its AI-powered operating system for independent wine and liquor stores, which combines point-of-sale, e-commerce, payments, inventory and marketing tools in one platform. - learn more

    LA Exits

    • Winnow Solutions was acquired by Marina del Rey-based Spring Labs, with financial terms undisclosed. Winnow’s attorney-built library of more than 100,000 state and federal regulatory requirements will become a core part of SpringGRC, helping financial institutions connect changing laws directly to their compliance policies, controls and workflows. - learn more

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      LA Tech Week 2026: Sunday’s Event Lineup

      🔦 Spotlight

      LA Tech Week 2026 closes Sunday with one final day of events across Los Angeles. We have organized the remaining lineup by neighborhood so you can finish the week with a few last conversations before everyone returns to their regularly scheduled inboxes.

      ARTS DISTRICT

      12:00 PM

      CARSON

      12:00 PM

      CULVER CITY

      9:00 AM

      • Women in Cleantech & Sustainability Hike and Network: See Details Here
        Women in Cleantech & Sustainability

      6:00 PM

      • Founders pitch competition: See Details Here
        Biomorphix solutions, Nightingale regenerative

      HOLLYWOOD

      10:00 AM

      4:00 PM

      • AI International: Film, Music Video & Micro-Drama: See Details Here
        AI International Film Festivals

      MID CITY

      1:00 PM

      OTHER

      12:00 PM

      • ORGANIC LIFE LABS™ PRESENTS THE ALIGNMENT LAB: The Science of human performance: See Details Here
        The Blue Room Collective

      SANTA MONICA

      8:00 AM

      1:00 PM

      6:00 PM

      SOUTH LA

      2:00 PM

      • Future Builders : Family STEM Day: See Details Here
        Black L.A. Tech Week (Community Collective)

      VENICE

      10:00 AM

      12:00 PM

      • How to Raise Funds to Fund Any Business Using Digital Products.: See Details Here
        DN Events

      VIRTUAL

      5:00 PM

      WEST HOLLYWOOD

      3:00 PM

      Each session provides unique opportunities to gain insights, network, and explore various fields of tech innovation. For updates or more event information, visit the official Tech Week calendar.

      Download the dot.LA App

      LA Tech Week 2026: Saturday’s Event Lineup

      🔦 Spotlight

      LA Tech Week 2026 heads into the weekend Saturday with more opportunities to learn, meet fellow builders and explore what is being created across the region. Browse the day’s events by neighborhood below and find the gatherings worth leaving the house for.

      ARTS DISTRICT

      5:30 PM

      BEL AIR

      5:00 PM

      CULVER CITY

      10:00 AM

      1:00 PM

      4:00 PM

      DOWNTOWN

      11:00 AM

      2:00 PM

      • South Asians in Space, Physical AI: See Details Here
        american south asian network

      5:00 PM

      7:00 PM

      HOLLYWOOD

      8:00 PM

      INGLEWOOD

      10:00 PM

      LONG BEACH

      10:00 AM

      12:00 PM

      LOS FELIZ

      8:30 AM

      • Griffith Observatory Hike with Longevity Cities & Don't Die LA: See Details Here
        Longevity Cities

      MALIBU

      5:00 PM

      MARINA DEL RAY

      9:30 AM

      • The Brazen Capital Walk: Connecting Women, Capital & Opportunity: See Details Here
        BrazenEra

      6:00 PM

      • Build an AI workflow editor, natively in Angular: See Details Here
        Workflow Builder

      SANTA MONICA

      7:00 AM

      • Founders Running Club Run in Santa Monica: See Details Here
        Founders Running Club, MongoDb

      9:00 AM

      • MOLTEN - Spatial hackathon (ElevenLabs, AssemblyAI, Rokoko, Datafeel...): See Details Here
        Field Lab

      2:00 PM

      3:30 PM

      6:00 PM

      7:00 PM

      SOUTH LA

      7:00 PM

      THE VALLEY

      7:30 PM

      UCLA

      11:00 AM

      USC

      9:00 AM

      10:00 AM

      10:30 AM

      VENICE

      8:00 AM

      • Open Air Health Tech: See Details Here
        Open Air Health Tech, Bowshock, Govitamins App

      10:00 AM

      10:30 AM

      11:00 AM

      12:00 PM

      6:00 PM

      • Bots, Bytes & Bubbles Benefit: See Details Here
        Distinguished Minds Institute dba thinqueBytes®

      VIRTUAL

      9:00 AM

      • Ask a VP of Sales: Live GTM Office Hours for Early-Stage B2B Founders: See Details Here
        Kat Rucker Consulting Group

      11:00 AM

      WEST HOLLYWOOD

      11:00 AM

      • The 10x Engineer Showed Up. The 10x Organization Didn't.: See Details Here
        Workflow Builder, Tentaro

      3:00 PM

      WESTSIDE

      11:00 AM

      2:00 PM

      • Graphic Design & Digital Printing Meetup: See Details Here
        Big Frog Custom T-Shirts & More of West LA

      7:00 PM

      WESTWOOD

      12:00 PM

      Each session provides unique opportunities to gain insights, network, and explore various fields of tech innovation. For updates or more event information, visit the official Tech Week calendar.

      Download the dot.LA App

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