Notable Capital
3000 Sand Hill Road, Building 4, Suite 230, Menlo Park, California, 94025, United States
Overview
Notable Capital is named for the founders we invest with, the ideas they pursue, the causes they champion, and the remarkable companies they build. Notable is a U.S.-based venture capital firm focused on early-to-growth stage companies in cloud infrastructure and business and consumer applications across the U.S., Israel, Europe, Latin America, and select go-global opportunities. Notable portfolio companies include Affirm, Airbnb, Block, Brightwheel, Drata, Handshake, HashiCorp, Ibotta, Orca Security, Quince, Slack, Slice, StockX, Stori, Vercel, Zendesk, and more.
- Total investments
- 35
- Lead investments
- 16
- Investments · 12mo
- 16
- Active investors
- 10
Sector focus
- Finance
- Venture Capital
Investment portfolio
- Wispr AI
Participated · Series B · Aug 2026
Wispr AI is building voice-first foundation models to power Flow, a voice-to-text operating system layer that cleans filler words, structures thoughts and produces ready-to-use text in more than 25,000 apps and websites. The product’s accuracy is such that 90 % of spoken words require no edits, and after six months the average user writes 72 % of their characters with Flow, nearly halving daily typing time. The company reports 40 % month-over-month growth in both users and annual recurring revenue, and serves hundreds of thousands of users. Wispr envisions voice becoming the dominant interface and plans to expand Flow’s capabilities while hiring aggressively across engineering and product. A global partnership with “The Diary of a CEO” podcast will showcase the technology to an audience of over 35 million subscribers. Headquartered in San Francisco, the company has raised a total of $81 million from investors such as Notable Capital, Flight Fund, AIX Ventures, Menlo Ventures, NEA and 8VC. These funds will be used to scale its voice-native computing system worldwide.
- Act Security
Led · Series A · Jul 2026
Act Security was founded by Jonathan Langer, Itay Kirshenbaum, Stephen Goldberg, and Ilai Fallach, the team behind medical-device security company Medigate. The startup is building a platform designed to protect cloud infrastructure and on-premise data centers from cyber threats. Drawing on the founders’ experience in safeguarding connected medical devices, the company aims to extend similar rigorous security to broader enterprise environments. Act Security is already staffed by about 30 employees. Since launching, the company has attracted significant investor interest, amassing $60 million across two rounds. This capital positions the young firm to continue expanding its technology and team as it brings its platform to market.
- Beacon Security
Led · Seed · Jul 2026
Beacon provides an AI-native security platform centered on a data layer that normalizes, enriches, and pre-resolves telemetry across vendors to deliver clean, contextualized security data. The platform includes a library of production-ready Beacon Agents tuned by offensive-security and nation-state veterans and an open harness that lets defenders run, control, build, and analyze agentic workflows. Beacon's capabilities span data operations, posture monitoring, detection engineering, investigation support, and shadow-AI analysis, with more agents planned. The company reported over 300% ARR growth in H1 2026 and says it is deployed across dozens of enterprises, including Fortune 500 teams in highly regulated industries. Founded in 2024 by veterans of intelligence, offensive security, and enterprise data infrastructure, Beacon positions itself as the foundational context layer for human and autonomous defenders.
- Patronus AI
Participated · Series B · Jun 2026
Founded in 2023 and based in San Francisco by former Meta AI researchers Anand Kannappan and Rebecca Qian, Patronus AI creates simulated digital environments that replicate websites and internal systems to evaluate AI agent behavior. The company uses these digital world models to stress-test agents with reinforcement learning, enabling iterative rewards for task completion and penalties for errors. Patronus currently provides simulations for software engineering and finance, and reports that demand from frontier AI labs and startups is nearly insatiable. Its revenue has grown 15-fold over the past year, contributing to strong investor interest. Patronus positions itself primarily against internal evaluation teams at AI labs and differentiates from human-data firms by evaluating agent behavior without human involvement. The company aims to build environments capable of running long-duration agent operations across a range of verifiable and, eventually, more complex scenarios.
- Storii
Participated · Seed · Apr 2026
Storii provides a platform that helps users record and preserve meaningful life stories by relying on automated phone calls and transcription technology. The service is positioned to help families document personal histories and lived experiences, with particular emphasis on older adults and legacy preservation. Since founding, Storii has raised $479,000 across three rounds combining seed investments and non-dilutive grants to fund product development and early market expansion. Investors in its early funding include a mix of venture firms and institutional backers such as Vision Plus Capital, Lightspeed Venture Partners, Source Code Capital, Goodwater Capital, General Catalyst, Bertelsmann Investments, DHVC, GGV Capital, and Notable Capital. The company says it is pursuing a measured growth strategy focused on product quality and user impact rather than rapid scaling. Its positioning sits at the intersection of consumer technology, aging services, and digital storytelling, aiming to deepen engagement through reminiscence-based experiences.