Ex-Zillow CEO Takes Offerpad Public in $3B Deal Pitting Him Against Former Colleagues

🔦 Spotlight

Hello, Los Angeles!

This week, DeepSeekAI has been dominating the tech conversation. The Chinese AI startup’s chatbot app surged to the No. 1 spot on the App Store, drawing both excitement and scrutiny. Supporters see its open-weight model as a potential game-changer, offering developers more flexibility compared to closed AI systems like OpenAI’s. But the rapid rise has also raised questions about security, data governance, and global AI competition. Whether DeepSeek will be a long-term disruptor or just a momentary sensation remains to be seen, but one thing is clear—AI remains the tech industry’s driving force.

But while AI continues to dominate headlines, another sector is quietly making waves—defense technology. And one LA-based startup just secured a major endorsement from investors and the U.S. government.

Castelion’s Hypersonic Bet—Can It Outrun the Defense Industry’s Red Tape?

Image Source: Castelion

El Segundo-based Castelionjust raised$100 million to accelerate its mission to build hypersonic weapons faster, cheaper, and at scale. The financing—$70 million in equity (led by Lightspeed Venture Partners with participation from a16z, Lavrock Ventures, Cantos, First In, BlueYard Capital, and Interlagos) and $30 million in venture debt (from Silicon Valley Bank)—is the latest sign that venture capital sees national security startups as a high-growth opportunity.

Unlike traditional defense contractors, Castelion is operating like a fast-moving startup, not a slow-moving government supplier. Founded by former SpaceX engineers, the company is applying an iterative, test-heavy approach to building long-range hypersonic strike weapons—which travel at speeds exceeding Mach 5 (3,800+ mph) and are designed to evade modern missile defenses.

Not Just VC-Backed—The U.S. Military is Betting on Castelion Too

While the $100 million raise is a major milestone, Castelion already has funded contracts with the U.S. Navy, U.S. Air Force, and U.S. Army. These contracts are focused on hypersonic technology development and scaled manufacturing, areas where the military has struggled to move quickly due to bureaucratic delays and reliance on traditional defense giants.

To prove it can execute, Castelion recently successfully launched a low-cost ballistic missile from a self-built launcher in Mojave. Now, with both government contracts and venture capital behind it, the company is pushing forward on more flight tests and building out its scaled production capabilities.

Image Source: Castelion - Castelion launches a missile prototype in Mojave, CA

With rising geopolitical tensions and an increasing focus on faster, cost-effective deterrence, Castelion is positioning itself as a new kind of defense player—one that moves at startup speed. Whether it can sustain that pace while navigating the complexities of government procurement remains to be seen, but one thing is clear: the future of defense tech isn’t just about who can build the best weapons—it’s about who can build them fast enough.

🤝 Venture Deals

LA Companies

• Omnitron Sensors, a Los Angeles-based pioneer in microelectromechanical systems (MEMS) fabrication technology, has secured over $13M in a Series A funding round led by Corriente Advisors, LLC, with participation from L'ATTITUDE Ventures. The company plans to use the funds to expand its engineering and operations teams and accelerate the mass production of its first product, a reliable and affordable MEMS step-scanning mirror designed for various applications, including AI data centers, advanced driver assistance systems (ADAS), drones, extended reality (XR) headsets, and toxic gas-detection systems. - learn more

• Camouflet, a Los Angeles-based technology company specializing in AI-driven dynamic pricing solutions, has secured a $12M Series A funding round led by QVM. The company plans to utilize the proceeds to scale its platform across various industries, expand into international markets, and enhance its technology and team to better serve its clients. - learn more

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🔦 Spotlight

Hello, LA!

This week, tech headlines are buzzing with OpenAI's launch of Operator, a tool that promises to transform task automation, and TikTok’s major outage, which left millions disconnected. But closer to home, as wildfires blaze across Southern California, survival has become the focus—and technology is making it possible.

When the plume of smoke reappeared on the horizon, residents across Southern California turned to tools like Watch Duty. Over the past week, as flames surged, the app gained 600,000 new users in just one night, delivering critical, real-time information to help residents stay ahead of danger. Watch Duty, designed to provide wildfire updates, has proven to be much more than an alert system. It’s a lifeline.

The app integrates live data, satellite imagery, and community reports to send updates directly to users. Information includes fire locations, evacuation orders, and air quality indices, empowering quick, informed decisions. Its community-driven ethos—with contributions from locals, firefighters, and volunteers—ensures hyper-local and timely updates, filling gaps where traditional news outlets often fall short.

Image Source: Watch Duty

A New Era of Fire Alerts

Watch Duty redefines wildfire preparedness through technology and collaboration:

• Fire Detection: Monitors data from satellites, agencies, and ground sources to identify wildfires.
• Data Verification: A team of experts ensures reported activity is accurate.
• Real-Time Alerts: Notifications are sent within 60 seconds of detection.
• Community Contributions: Local residents provide photos and updates.
• User Notifications: Alerts include fire size, location, and evacuation details.

These features make Watch Duty an indispensable tool during wildfire season. In 2024, the app processed over 2 million alerts and supported 50,000 evacuations, with plans to expand predictive modeling by 2025 to anticipate threats before they escalate.

Innovations Reshaping Wildfire Management

Early Detection Leaders:

• AlertCalifornia: Operates over 1,000 cameras with machine learning to monitor high-risk areas.

• Pano AI: Uses cameras and sensors to detect smoke and alert responders.

• Torch Sensors: Deploys heat-detection sensors to identify anomalies early.

Image Source: Torch Sensors

Predictive and Analytical Pioneers:

• Chooch AI: Employs drones and computer vision to monitor fire hazards.

• Data Blanket: Uses analytics to forecast fire behavior and assist evacuations.

• Rain: Leverages advanced atmospheric sensing and AI-driven technology to provide precise fire detection and tracking. Its real-time data on fire weather conditions and environmental factors helps agencies anticipate and respond to wildfires with greater efficiency.

• SCEPTER: Tracks air quality and wildfire emissions using AI and satellite data.

Image Source: Rain

A Vision for the Future

As Los Angeles continues to adapt to the realities of a changing climate, tools like Watch Duty, Pano AI, and AlertCalifornia are proving to be invaluable. These technologies are not just reactive measures; they represent a shift toward proactive disaster preparedness. The question now isn’t whether technology can help but how much more it can achieve in the years to come.

With the integration of predictive modeling, AI, and real-time data, there’s hope for a future where wildfires are no longer unpredictable forces of destruction. Imagine every household equipped with predictive wildfire maps, heat-detecting drones, and AI-driven tools to guide safety decisions. The innovations are here—it's up to us to support and scale them to ensure they reach the communities that need them most. Which company, which app, or which breakthrough will emerge as the next lifeline? The possibilities for a safer, more prepared Los Angeles feel closer than ever.

🤝 Venture Deals

LA Companies

• Favorited, a new livestream app positioning itself as an alternative to TikTok, has raised a $1.3M Pre-Seed from HF0, Soma Ventures, and several angel investors from the entertainment and social space. The platform, which participated in the a16z Speedrun accelerator program, offers features like streaks and leaderboards to boost user engagement. Favorited plans to use the funds to enhance its app's functionalities and expand its user base. - learn more

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🔦 Spotlight

Hello Los Angeles,

This week has been a challenging one for many in our city as we continue to face the aftermath of the recent wildfires. Recovery efforts are in full swing, and as always, the strength and resilience of our community shine through.

If you or someone you know has been impacted, there are resources available to help navigate this difficult time:

• LA County Wildfire Recovery Resources: Access here

• City of Los Angeles Recovery Resources: Access here

• Eaton Fire Damage Maps: View here

• Pacific Palisades Fire Damage Maps: View here

These tools can provide support, whether you’re looking for financial assistance, housing resources, or updates on affected areas.

While our community focuses on recovery, we’re also reminded of what makes LA unique: its unrelenting drive to build, create, and innovate. A great example this week comes from Whatnot, the live shopping platform co-founded in 2019 by Grant LaFontaine and Logan Head, which has just achieved a major milestone.

Whatnot announced it raised $265 million in Series E funding, valuing the company at an impressive $5 billion.

For those unfamiliar, Whatnot combines shopping and entertainment through live-streamed auctions. Think of it as a vibrant, interactive marketplace where sellers showcase everything from trading cards and collectibles to fashion items, all in real time. Buyers can bid during the stream, creating a sense of excitement and connection that feels more personal than traditional online shopping.

The company’s new funding—co-led by Greycroft, DST Global, and Avra Capital—will drive expansion into markets like Australia and bring improvements to seller tools, from inventory management to advanced analytics. But what stands out most is Whatnot’s focus on its people. CEO Grant LaFontaine announced plans to buy back $72 million in shares for long-term employees, a move that underscores the company’s dedication to sharing its success.

As we move forward, let’s celebrate stories like these that show how innovation thrives in LA—even amid challenges. Whether it’s supporting wildfire recovery, building the next great startup, or simply connecting with others, we each play a role in shaping the spirit of our city.

🤝 Venture Deals

LA Companies

• Phase Four, a leader in advanced in-space propulsion systems, announced the first close of its Series C funding round, securing nearly 60% of the target raise, led by Artemis Group Capital, to ramp up production of its Valkyrie Hall Effect Thrusters to at least 250 units annually and develop cutting-edge propulsion technologies for defense and national security needs. - learn more

• Proper, a next-generation supplement brand launched by fitness entrepreneur Amanda Kloots, secured investment from Ben Bennett's Beauty Accelerator, The Center, to redefine the supplement industry with innovative, nutrient-focused wellness solutions tailored for modern lifestyles. - learn more

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