Top 5 VC Deals of the Week in AI (10/21/26)

By Christopher Robbins · Oct 22, 2026 Views: 1,672

Our Top 5 VC Deals of the Week in AI featured funding announcements from Tenstorrent, ASI, Otter.ai, Pigment, and Arda Industries

This week we continue our series on the top 5 VC-funded deals in AI.

This week our overall AI venture capital activity maintained its momentum from recent weeks, with all five of our listed announcements coming in over $232 million and 12 announcements total coming in over $100 million.

The biggest announcement, per FinSMEs, came from Santa Clara, Calif.-based Tenstorrent, an AI infrastructure and compute provider, which raised $1.5 billion in a Series E to "deploy Galaxy servers at scale, continue serving open-weight models across LLMs and video generation, and advance the AI and CPU IP it licenses to customers designing their own silicon," according to its announcement. Our second-place announcement was from Boston-based frontier AI developer ASI, which raised $325 million in a Series C to "accelerate deployment across energy, logistics, and tactical edge environments, while expanding its frontier AI research and engineering teams," according to its announcement. Rounding out the top 5 are announcements from the note-taking, business planning and manufacturing spaces.

Smaller funding raises that did not quite make our top 5 this week included announcements from the construction, AI infrastructure, and autonomous aircraft sectors.

Below, we highlight the top five venture capital deals, ranked from the highest to the lowest funding amounts, showcasing the companies at the forefront of the AI revolution...

Top 5 Venture Capital Deals from Oct. 15 - Oct. 21

1. Tenstorrent

Company Location: Santa Clara, CA, and Toronto, Canada
Description: Provider of an open AI compute and RISC-V platform developing advanced computing technologies, including processors and supporting infrastructure designed to accelerate artificial intelligence workloads.
Funding Amount: $1.5 billion
Funding Round: Series E
Valuation: $6.2 billion post-money

2. ASI

Company Location: Boston, MA
Description: Frontier artificial intelligence company developing technologies to orchestrate critical infrastructure and national security operations, applying advanced AI capabilities to complex systems and mission-critical environments.
Funding Amount: $325 million
Funding Round: Series C
Valuation: $3 billion

3. Otter.ai

Company Location: Mountain View, CA
Description: Provider of an AI-powered notetaking and conversational knowledge platform that helps individuals and organizations record, transcribe, summarize and extract actionable information from meetings and conversations.
Funding Amount: $320 million
Funding Round: Funding round; specific series not disclosed

4. Pigment

Company Location: Paris, France
Description: Provider of an AI-powered business planning and performance management platform that enables organizations to analyze financial and operational data, develop forecasts, evaluate scenarios and improve strategic decision-making.
Funding Amount: $250 million
Funding Round: Series E
Valuation: $2.3 billion

5. Arda Industries

Company Location: San Francisco, CA
Description: Provider of an AI platform for manufacturing engineering, developing intelligent technologies designed to improve engineering workflows and support the automation of industrial design and production processes.
Funding Amount: $232 million
Funding Round: $160 million Series A financing and $72 million seed round
Valuation: $1.5 billion, associated with the Series A financing

Make sure to check out our Top 5 VC Deals of the Week in AI right here!

Written & Researched by DWN Staff

VC Deals Synopsized by ChatGPT Research Source: FinSMEs