Startup Trends: 5 new unicorns from Q3 2026 with seller interest on Forge

Crossing the $1 billion valuation threshold puts a private company among the ranks of unicorns. For investors, that milestone can become especially relevant when existing shareholders are also looking to sell, creating a potential opportunity to gain exposure through the secondary market.

During the third quarter of 2026, five private companies reached unicorn status through new funding rounds. Spanning AI infrastructure, neurotechnology, robotics and cybersecurity, the five companies also currently have seller interest on the Forge marketplace as of this publication.

Seller asks indicate that shareholders are interested in selling at specified prices and quantities. Accredited investors can review those opportunities and submit bids, potentially acquiring shares.

Spectro Cloud simplifies AI infrastructure management

San Jose, California-based Spectro Cloud develops software that helps organizations deploy and manage applications and AI infrastructure across data centers, cloud services and devices operating closer to end users. Its PaletteAI platform gives customers a way to manage complex computing environments while retaining flexibility across hardware providers and AI models.

On July 15, the company announced more than $100 million in Series D funding, led by Growth Equity at Goldman Sachs Alternatives. The financing brought Spectro Cloud to a $1 billion post-money valuation, according to Forge data. The company plans to use the capital to expand its platform, customer adoption and partnerships as organizations move AI projects into everyday business operations.¹

For investors, Spectro Cloud offers exposure to the software needed to operate AI infrastructure, an area where managing costs and complexity may become increasingly consequential as deployments grow.

As of the latest funding round, Spectro Cloud’s last price per share was $17.50. Other notable investors include AMD Ventures, Ericsson and LG Technology Ventures. Spectro Cloud was founded in 2019.

Precision Neuroscience advances brain computer interfaces

New York-based Precision Neuroscience is developing brain–computer interface technology, which connects brain activity with computers. Its approach emphasizes a minimally invasive, removable interface, with the goal of expanding treatment possibilities for people with neurological conditions.

On September 24, Precision announced a $250 million Series D financing, co-led by Pershing Square, the Ackman Oxman Institute and an undisclosed life sciences investment fund.² Forge records the round at a $1.03 billion post-money valuation, marking its entry as a new unicorn.

The company said the funding would support clinical expansion, further FDA review and commercialization infrastructure. At the announcement, Precision reported more than 100 patient procedures across 18 medical institutions and a commercial partnership with Medtronic. These developments give investors milestones to assess as the company works toward broader clinical adoption.

As of October 16, 2026, Precision Neuroscience’s Forge Price^TM was $8.50, implying a valuation of approximately $1.22 billion. Other notable investors include B Capital, ARK Invest and Mubadala Capital. Precision Neuroscience was founded in 2021.

Obsidian Security protects enterprise applications and AI agents

Palo Alto, California-based Obsidian Security helps businesses secure the third-party applications they use to operate. Its platform monitors access and activity across enterprise software, including the increasingly important role of AI agents and other automated identities acting inside those systems.

On August 4, Obsidian announced an $85 million Series D, led by Crescent Cove Advisors at a $1.1 billion valuation. The company said it was serving 60 Fortune 500 companies, with more than 100 customers spending over $100,000 annually and more than 14 spending over $1 million.³

The financing will support research and development as Obsidian works to secure AI agents operating across business applications. For investors, its expanding focus highlights a potential consequence of enterprise AI adoption: as automated systems gain greater access to corporate data and workflows, organizations may need additional tools to govern their activity.

As of August 2026, Obsidian Security’s last price per share was $7.55 for its Series D-1 shares, with a post-money valuation of $1.1 billion, according to Forge data. The same financing also included Series D-2 shares priced at $6.42. Other notable investors include Greylock, Menlo Ventures and Norwest Venture Partners. Obsidian Security was founded in 2017.

Lyte builds perception technology for robots

Sunnyvale, California-based Lyte develops the chips, sensors and software that help robots understand their surroundings. Its LyteVision platform combines different types of sensing data to track position and motion, giving robots information they can use to navigate and interact with the physical world.

On September 2, Lyte announced a $165 million Series C, led by Maverick Silicon at a $1.6 billion post-money valuation. The company said it had entered production and was shipping to robotics customers in inspection, logistics and manufacturing.⁴

Lyte plans to use the financing to increase production, improve its perception capabilities and expand customer deployments. For investors following robotics, the company represents exposure to technology that could support multiple robot manufacturers and industrial applications as adoption develops.

As of Lyte’s latest funding round, the private company’s price per share was $36.84. Other notable investors include Fidelity Management & Research, Atreides Management and Key1 Capital. Lyte was founded in 2021.

Horizon3.ai automates security testing

San Francisco-based Horizon3.ai helps organizations identify weaknesses in their computer networks before attackers exploit them. Its NodeZero platform conducts automated penetration testing, simulating attacks to reveal how vulnerabilities can combine to expose critical systems and checking whether fixes work.

On August 3, Horizon3.ai announced a $250 million Series E, co-led by NightDragon and NEA, at a valuation of more than $2 billion. The company said its valuation had increased from $650 million at its previous round.⁵

At the announcement, Horizon3.ai reported more than 7,000 customer organizations and 120% year-over-year growth in annual recurring revenue. It plans to use the funding to expand sales, enter additional international markets and develop new products. Those figures provide investors with operating measures to consider alongside its valuation milestone.

As of its last funding round, Horizon3.ai’s last price per share was $11.96. Other notable investors include NEA, Craft Ventures and Sapphire Ventures. Horizon3.ai was founded in 2019.

Investor takeaway

For these five companies, Q3 funding rounds supplied capital to pursue the next stage of development, from expanding commercial deployments to advancing clinical programs. Their unicorn valuations mark a financing milestone, while future performance will depend on execution, customer adoption and the economics of each business.

Existing seller interest adds a practical dimension for accredited investors evaluating these companies. Through the Forge marketplace, investors can explore available asks, compare pricing data and submit bids for potential purchases, while shareholders can pursue liquidity.