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

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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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.
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Snapchat’s New Parental Controls Could Let Adults See Their Kids’ Friend Lists
Christian Hetrick is dot.LA's Entertainment Tech Reporter. He was formerly a business reporter for the Philadelphia Inquirer and reported on New Jersey politics for the Observer and the Press of Atlantic City.
Snap’s parental controls.
Courtesy of Snap.
Snapchat is planning to introduce Family Center, which would allow parents to see who their children are friends with on the app and who they’ve messaged within the last seven days, according to screenshots provided by Watchful, a product intelligence company. Parents would also be able help their kids report abuse or harassment.
The parental controls are still subject to change before finally launching publicly, as the Family Center screenshots—which were first reported by TechCrunch—reflect features that are still under development.
Santa Monica-based Snap and other social media giants have faced mounting criticism for not doing more to protect their younger users—some of whom have been bullied, sold deadly drugs and sexually exploited on their platforms. State attorneys general have urged Snap and Culver City-based TikTok to strengthen their parental controls, with both companies’ apps especially popular among teens.
A Snap spokesperson declined to comment on Friday. Previously, Snap representatives have told dot.LA that the company is developing tools that will provide parents with more insight into how their children are engaging on Snapchat and allow them to report troubling content.
Yet Snap’s approach to parental controls could still give teens some privacy, as parents wouldn’t be able to read the actual content of their kids’ conversations, according to TechCrunch. (The Family Center screenshots seen by dot.LA do not detail whether parents can see those conversations). In addition, teenage users would first have to accept an invitation from their parents to join the in-app Family Center before those parents can begin monitoring their social media activity, TechCrunch reported.
Christian Hetrick is dot.LA's Entertainment Tech Reporter. He was formerly a business reporter for the Philadelphia Inquirer and reported on New Jersey politics for the Observer and the Press of Atlantic City.
ADHD and Dyslexia Often Aren't Caught Until It's Too Late. Santa Monica-Based Polygon Wants to Change That.
Keerthi Vedantam is a bioscience reporter at dot.LA. She cut her teeth covering everything from cloud computing to 5G in San Francisco and Seattle. Before she covered tech, Keerthi reported on tribal lands and congressional policy in Washington, D.C. Connect with her on Twitter, Clubhouse (@keerthivedantam) or Signal at 408-470-0776.
Here’s how Jack Rolo describes his childhood: He was good at chess, and bad at spelling. He was good at math, and bad at reading. Rolo went on to study physics at Durham University in his native England—and despite often struggling in his courses, it wasn’t until after he graduated that he was diagnosed with dyslexia, a common language processing disorder that affects reading.
Rolo’s experiences informed his founding of Polygon, a Santa Monica-based diagnostics startup that emerged from stealth on Friday with $4.2 million in funding, and the goal of better diagnosing dyslexia, ADHD and other learning-related disabilities. The funding includes a $3.6 million seed round led by Spark Capital, as well as $600,000 in pre-seed funding led by Pear VC.
“It really is a product I wish I'd had access to at an earlier age myself,” Rolo told dot.LA.
After moving to California to earn his MBA degree at UC Berkeley, Rolo met his co-founder Meryll Dindin, who now serves as Polygon’s chief technology officer. Together, they’ve built a platform that aims to partner with schools to test children for a myriad of disabilities that may affect academic performance. (The startup claims it’s already teamed with schools in California, but did not disclose which.) Rolo says he envisions that these assessments become as ubiquitous as vision and hearing exams: that every student, regardless of age, background or academic performance, will be tested.
As is, testing for disorders like ADHD and dyslexia often depends on parents, teachers or pediatricians observing a child, detecting something amiss and intervening. There are problems with this method; for instance, girls are chronically underdiagnosed with ADHD because it presents itself differently than it does for boys. Teachers juggling crowded classrooms may not be able to perceive why a specific child is falling behind. And Black and Latino children are often overlooked when it comes to diagnosing disabilities.
“Common roots of referral are teachers, and typically that's flagged because they'll see the student failing,” Rolo said. “That's part of the problem—that this then becomes almost a wait-to-fail approach, when ideally you want to pick these things up proactively.”
Polygon employs full-time psychologists who evaluate students through a telehealth platform. After undergoing a range of standardized assessments and interviewing their parents and teachers, a student who is diagnosed will receive an "Individualized Education Program," a schooling curriculum tailored toward their disabilities.
Assessments start at $995, which Polygon says is up to five times cheaper than traditional disability testing alternatives. The company plans on driving that cost down further by collecting a large data sample of assessments and building machine learning technology to “pre-screen” students; those who are flagged would then undergo more extensive testing.
“Ultimately, what we're trying to move toward is a model quite similar to the optician, where everyone gets the evaluation,” Rolo said. “Yes, assessments are still not accessible for all families just yet—but this is the beginning, and we hope to drive this cost down way further over time.”
Polygon said the new funding will go toward expanding beyond California and growing its network nationally.
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Keerthi Vedantam is a bioscience reporter at dot.LA. She cut her teeth covering everything from cloud computing to 5G in San Francisco and Seattle. Before she covered tech, Keerthi reported on tribal lands and congressional policy in Washington, D.C. Connect with her on Twitter, Clubhouse (@keerthivedantam) or Signal at 408-470-0776.
ZipRecruiter CEO Ian Siegel on How the Job Market Has Shifted
Spencer Rascoff serves as executive chairman of dot.LA. He is an entrepreneur and company leader who co-founded Zillow, Hotwire, dot.LA, Pacaso and Supernova, and who served as Zillow's CEO for a decade. During Spencer's time as CEO, Zillow won dozens of "best places to work" awards as it grew to over 4,500 employees, $3 billion in revenue, and $10 billion in market capitalization. Prior to Zillow, Spencer co-founded and was VP Corporate Development of Hotwire, which was sold to Expedia for $685 million in 2003. Through his startup studio and venture capital firm, 75 & Sunny, Spencer is an active angel investor in over 100 companies and is incubating several more.
On this episode of Office Hours, host Spencer Rascoff talked with ZipRecruiter CEO and founder Ian Siegel about how he built his company, the lessons he's learned along the way and how he's seen the pandemic drastically reshape the job market—probably for good.
Siegel moved to L.A. to be a writer in Hollywood. But he quickly realized he hated it. Instead, he moved into the fledgling online division at Warner Bros., From there, he found himself working at a series of VC-backed startups that became successful. As a result, he became known in the industry as an expert in taking online businesses that had plateaued and figuring out a way to help them grow. He said he hated every minute of it.
“What you are in that situation is you're an agent of change. And what I learned is you can be good at that, but no one likes you because everybody fears change.”
Instead, Siegel worked up the courage to start his own business.
“Why do I let people pay me such a small amount of money to turn around these businesses?,” he asked himself. “If I'm so good at this, why don't I just start my own and build it right from the very beginning. And that's what ultimately gave me the conviction to go launch ZipRecruiter.”
His time working at young startups too small to have their own HR departments gave Siegel the idea. After posting the same job position across multiple websites and printing out every single resume submitted, he realized he was facing a problem technology is built to solve.
“I just wanted a magic button that I could push. And it would send a job to all job boards at once, and then all the candidates from all those different sites would go into one easy to review list. That's exactly what we built with the first version of ZipRecruiter,” said Siegel.
Over time, ZipRecruiter’s mission has changed, he said, from a company aimed at solving a single pain point to a company trying to reinvent how the labor market functions. That, he added, is orders of magnitude more difficult, because “you are retraining America or potentially the world on a new way to do something.”
“And now you are knife fighting in the jungle, you are trailblazing,” he added. “I don't worry about how anybody in the current ecosystem operates. I'm truly fundamentally trying to change the labor market in the United States right now.”
Siegel said he’s seen the job market drastically change over the past couple years, as the pandemic accelerated the move to remote work and hybrid and remote positions surged. Fewer than 2% of jobs on ZipRecruiter had the words “remote” in them before COVID-19 stuck. Now, 60% of applicants say they’re seeking remote or hybrid work, and 12% of the jobs listed on the site offer a remote option—and that number is growing.
That reality has changed how he runs his own business.
“What I've done at ZipRecruiter is accept change,” Siegel said. “We are fully embracing remote. I believe remote is not only here to stay, it's a huge benefit.”
That, he says, is because employees and employers both save time on driving and grooming. They save money on gas and parking. The office, he added, will still have a purpose, but it will probably be more for building culture, and less for work.
"It'll be a much smaller space entirely designed around fun," he said. "No one will ever go in there every day purely for the purpose of doing their job, probably ever again."
One of the lessons Siegel said he’s learned as a serial entrepreneur is to make sure the work you pick is meaningful to you.
“It turns out every business takes the same amount of time, which is all your time,” he said. “So be thoughtful about how you spend it. Pick work that's meaningful for you. Pick work that has scale opportunity to it and that you're going to be excited to go into every day,”
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Spencer Rascoff serves as executive chairman of dot.LA. He is an entrepreneur and company leader who co-founded Zillow, Hotwire, dot.LA, Pacaso and Supernova, and who served as Zillow's CEO for a decade. During Spencer's time as CEO, Zillow won dozens of "best places to work" awards as it grew to over 4,500 employees, $3 billion in revenue, and $10 billion in market capitalization. Prior to Zillow, Spencer co-founded and was VP Corporate Development of Hotwire, which was sold to Expedia for $685 million in 2003. Through his startup studio and venture capital firm, 75 & Sunny, Spencer is an active angel investor in over 100 companies and is incubating several more.