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7 Jul

Cool Company Raises · $35.0M

Arkenstone Defense raises a $35.0M Seed round

Arkenstone Defense emerged from stealth to provide technology companies with a platform that eliminates the burdens of compliance, security, workforce, and operations needed to sell to the U.S. government. Their comprehensive service allows commercial technology firms to focus on innovation while Arkenstone manages the operational requirements. The company aims to streamline the entry of startups into federal contracting, ensuring they are operationally ready without the lengthy setup process.

Information-TechnologySecurityGovernmentArtis VenturesGranite Hill Capital PartnersJ2 Ventures+2 more

Cool Company Raises · $30.0M

Bezos Earth Fund raises a $30.0M round

The Bezos Earth Fund is a philanthropic organization founded by Jeff Bezos in 2020. With a pledge of $10 billion, it aims to combat climate change through innovative grants and investments. The fund focuses on advancing green technologies and preserving natural ecosystems.

Non-ProfitBezos Earth Fund$10M+

6 Jul

3 Jul

2 Jul

Cool Company Raises · YC S26

Petrarch launches at YC (Summer 2026)

Market maker for specialized data assets

MarketplaceB2BData-EngineeringY CombinatorYCYC-S26

Cool Company Raises · YC S26

Nebula Security launches at YC (Summer 2026)

An AI-native cybersecurity company

CybersecurityAIB2BY CombinatorYCYC-S26

Cool Company Raises · $54.2M

Qolab raises a $54.2M Series B round

Qolab, Inc. is a pioneering quantum computing company dedicated to developing utility-scale superconducting quantum computers. By leveraging cutting-edge semiconductor fabrication tools and processes, proprietary qubit designs, and innovative scaling techniques, Qolab aims to push the boundaries of quantum technology and deliver reliable, high-performance systems. Qolab combines a physics-driven approach with a focus on qubit quality and practical hardware solutions. Close collaborations with semiconductor industry leaders and academic institutions are central to the Qolab mission.

Information-TechnologyOctave VenturesPhoenix Venture PartnersUc InvestmentsWarf$50M+

Cool Company Raises · $53.5M

Captura raises a $53.5M round

The ocean is an immensely powerful force of nature, and our greatest ally to reverse the tides on climate change. By studying the planet’s natural cycles, Captura designed a solution that removes CO2 from the ocean and harnesses its ability to heal the climate—a process known as Direct Ocean Capture. Developed and proven in Caltech’s laboratories, our unique Direct Ocean Capture technology runs with just two ingredients: seawater and renewable electricity. It extracts CO2 directly from seawater to be permanently stored or reused. This amplifies the natural equilibrium between the ocean and atmosphere, drawing carbon out of the air and into the ocean to rebalance. Captura’s approach requires no rare-Earth minerals, adds nothing to the ocean, and leaves no chemicals behind. It’s a low-cost, large-scale carbon removal solution that is environmentally sound.

Environmental-Services$50M+

1 Jul

30 Jun

Cool Company Raises · YC S26

Edviro launches at YC (Summer 2026)

Energy world models that fix energy waste before it becomes expensive.

Deep-LearningB2BEnergyY CombinatorYCYC-S26

Cool Company Raises · $95.0M

Higharc raises a $95.0M Series C round

Higharc's Homebuilding Cloud gives your homebuilding team the tools they need to design, estimate, sell, and build. Say goodbye to disconnected teams, outdated software, and repetitive manual work. Go to market faster than ever with one connected platform to design, estimate, sell, and build new homes and communities buyers love. Higharc is VC-backed and is led by a founding team that has launched products for Autodesk, EA, Nike, and Apple. We’re looking for world-class engineers and designers.

Venture-CapitalSoftware-DevelopmentFifth WallInsight PartnersLux CapitalSe Ventures+3 more

Cool Company Raises · $800.0M

Etched raises a $800.0M round

Etched is a semiconductor company building purpose-built chips and servers optimized for transformer inference by hardwiring the transformer architecture directly into silicon, delivering unprecedented performance and efficiency for large-scale AI workloads.

Artificial-IntelligenceMachine-LearningAndrej KarpathyArthur MenschFei Fei LiGeoffrey Hinton+14 more

29 Jun

Dev Tools · supermemory.ai

Supermemory

The memory layer for AI agents. Context engineering platform powering enterprise APIs, developer plugins, and a personal app that remembers everything.

AI

Dev Tools · semgrep.dev

Semgrep App Security Platform | AI-assisted SAST, SCA and Secrets Detection

An extensible developer-friendly application security platform that scans source code to surface true and actionable security issues with AI-assisted SAST, SCA, and Secrets Detection solutions.

Cybersec

Cool Company Raises · YC S26

Greypoint Industries launches at YC (Summer 2026)

Manufacturing the future of autonomous swarm warfare.

HardwareRoboticsDronesY CombinatorManufacturingDefense+3 more

Cool Company Raises · YC S26

Molagri launches at YC (Summer 2026)

Biopesticides that are safe for humans and bees.

Synthetic-BiologyBiotechSustainabilityY CombinatorClimateAgriculture+3 more

Cool Company Raises · $5.0M

Altillion raises a $5.0M Seed round

Altillion is a Houston, Texas-based developer of brine mineral extraction technologies. The company focuses on autonomously extracting, concentrating, and purifying high-value elements from oilfield produced water and other sources. Its proprietary technologies, IRIS and ALIX, allow for efficient processing without disrupting existing operations. Altillion aims to establish a domestic supply of critical minerals.

Oil-And-GasEic Rose RockFlathead Forge$1M+

Cool Company Raises · $107.0M

Heron's Key raises a $107.0M round

Heron's Key is a Washington nonprofit corporation and 501(c)(3) organization that develops, owns, and operates senior living facilities in Washington. It features a life plan community set in a picturesque Pacific Northwest setting, offering a continuum of care and various amenities. Currently, it provides independent living, assisted living, memory care, and skilled nursing units for over 300 residents. The community is expanding with new residential units and renovations to enhance its offerings.

Health-CareNon-ProfitCommunities$100M+Family

Cool Company Raises · $3.4M

Row Global raises a $3.4M Seed round

ROW Global Health and the ROW Foundation exist to improve the lives of people living with epilepsy and associated psychiatric disorders in under-resourced areas around the world.

Information-Technology$1M+

26 Jun

24 Jun

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