Lightspeed Venture Partners — funding rounds

Every round in the stream with Lightspeed Venture Partners in it — 7 bookmarks, newest first.

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14 Sept

Cool Company Raises · $50.0M

Nuance Labs raises a $50.0M Series A round

Nuance Labs is a Seattle AI research lab building a full-duplex audiovisual foundation model for human conversation. Instead of chaining transcription, a language model, voice synthesis and animation together, a single unified system perceives and generates speech, facial expression and body language at the same time — so it reads the non-verbal cues in a live conversation and responds in the moment rather than after the turn ends. Founded by former Apple PhD researchers Fangchang Ma (CEO), Edward Zhang (CTO) and Karren Yang (Chief Scientist), with Yaser Sheikh advising. Target uses are sales, customer service, coaching, professional training and education, with a research preview due later in 2026. The $50M Series A was led by returning investor Lightspeed Venture Partners, with Accel and South Park Commons also returning and NVIDIA and Define Ventures joining.

Biotechnology Artificial-Intelligence Machine-Learning Define Ventures Nvidia South Park Commons+4 more

24 Aug

Cool Company Raises · $37.0M

Airbound raises a $37.0M Series A round

Airbound builds autonomous, zero-infrastructure delivery aircraft — engineered, manufactured, and flown in India. Its TRT blended-wing-body tailsitter takes off vertically without a runway and flies cargo to places roads serve badly, with an ultra-lightweight airframe that weighs less than the payload it carries. The Bengaluru company has logged over 13,000 autonomous flights, moves diagnostic samples for hospital networks today, and is targeting per-delivery costs low enough to compete with trucking. The Series A funds a three-city drone delivery network in Andhra Pradesh and a larger next-generation craft.

Transportation Logistics Manufacturing Greenoaks DoorDash Labs Lachy Groom+4 more

3 Aug

Cool Company Raises · $500.0M

K2 Space raises a $500.0M Series D round

K2 Space Corp. is a Torrance-based space satellite company that aims to develop large satellites capable of generating 20 kilowatts of power at a competitive pace and cost. Founded in 2022, the company has raised over $1 billion in funding, with a focus on vertical integration to produce satellites in-house. Its first large satellite, Gravitas, was successfully launched in March, and it is set to unveil a new 100-kilowatt model, Giga, in 2028. K2 Space is also preparing for future satellite launches as part of its Project Trinity.

Satellite-Communication Sands Capital Spark Capital Ark Invest Altimeter Capital Management Capital G+4 more

4 Jun

Cool Company Raises · $465.0M

Helion Energy raises a $465.0M round

Helion is a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone. Currently, we are scaling up our latest fusion prototype to make our vision a reality. We’re hiring brilliant scientists, engineers, and builders passionate about developing world-changing technologies. If that sounds like you, check out our open positions.

Software Renewable-Energy Alta Park Capital Anti Fund Bill Ford Box Group+10 more

28 May

Cool Company Raises · $22.0M

Triomics raises a $22.0M Series B round

Triomics builds oncology-specific AI for cancer centers, automating chart prep, clinical trial matching, and tumor registry reporting against complex multi-year patient records. The platform is used by academic centers including Memorial Sloan Kettering and Yale Cancer Center, and is positioned against generic AI scribes by training models on oncology data rather than general clinical text.

Series-B AI-ML Enterprise-Software Battery Ventures Lightspeed Venture Partners Nexus Venture Partners+5 more

Cool Company Raises · $59.0M

Reactor raises a $59.0M Series A round

Reactor is a San Francisco developer platform for real-time generative AI video. Founded by ex-Apple Vision Pro engineers Alberto Taiuti and Bryce Schmidtchen, the company offers an SDK and API that let developers build interactive applications powered by world models, generating video dynamically rather than via batch processing.

API-First Series-A Ar-Vr Lightspeed Venture Partners Amplify Partners FPV Ventures+5 more

Cool Company Raises · $65.0B

Anthropic raises a $65.0B Series C round

AI research company

Growth-Stage Series-C-Plus AI-ML Altimeter Capital Capital Group Dragoneer+22 more

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