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Ambient.ai

YC W17

San Francisco, US · Founded 2017 · 150 employees · Hiring · 7 known investors

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Ambient.ai develops an AI-powered platform using computer vision to automate physical security monitoring and threat detection for enterprises. The platform identifies and responds to security threats in real-time, addressing the limitations of traditional camera-based surveillance.

Also known as Ambient · Ambient AI · Ambient AI, Inc.

Founders & leadership· Y Combinator alumni (W17)

Ambient.ai was founded in 2017 by Shikhar Shrestha and Vikesh Khanna.

SSShikhar Shrestha
Shikhar ShresthainCEO & Co-founderShikhar Shrestha completed computer vision and artificial intelligence research at Stanford, Apple, and Google before founding Ambient.ai, which uses computer vision to automate physical security monitoring for enterprises.
VKVikesh Khanna
Vikesh Khannain𝕏CTO & Co-founderHe previously worked as a software engineer at Dropbox and Microsoft.

Investors · 7

Company profile

researched Aug 2026

Ambient.ai (legal entity Ambient AI, Inc.) is an enterprise physical security software company that layers AI and computer vision intelligence onto an organization's existing cameras, sensors and access control systems. Rather than replacing hardware, the platform ingests video and access data and applies near-human-level perception with automated situational context, going beyond motion detection and single-frame image recognition. The company describes its offering as "Agentic Physical Security," a continuous see-think-assess-act loop in which the software monitors, detects, assesses threats and initiates responses such as escalation, dispatch, talkdown and incident logging while keeping a human in the loop.

The product suite has four parts: Ambient Foundation, the base platform providing real-time situational awareness, Agentic Video Walls that surface the most relevant cameras, edge connectivity to 200+ ONVIF-compliant cameras, a Cloud SOC, multi-site management, semantic natural-language video search and operational analytics; Ambient Advanced Forensics, with similarity search, license plate recognition and incident timelines, which the company says compresses investigations up to 20x; Ambient Access Intelligence, whose PACS Correlation Engine matches access-control alarms with visual context to auto-validate or clear events, targeting the more than one million door-forced-open/door-held-open alarms large enterprises generate annually; and Ambient Threat Detection, with a library of more than 150 validated threat signatures covering perimeter breaches, tailgating, assault, brandished firearms and loitering, plus a Contextual Threat Analysis Engine that interprets intent.

Ambient.ai serves corporate campuses, education, manufacturing, museums, data centers, energy and utilities, healthcare and financial services. According to the company, seven of the top ten U.S. technology companies and multiple Fortune 500 organizations use the platform; named customers include Adobe, VMware and Impossible Foods.

Founding story

Co-founder and CEO Shikhar Shrestha was robbed at age 12; a security camera captured the incident but no officer intervened, which he cites as the origin of his view that physical security is fundamentally reactive because there is too much activity and too few people to monitor it. Shrestha studied at Stanford, where he met Vikesh Khanna, and the two founded Ambient.ai to apply AI-driven computer vision to physical security. The company's About page and press release date the founding to 2017, while its own AI-info page states 2016. Both founders are described as AI researchers from Stanford who previously worked on products at Apple, Google, Microsoft and Dropbox; Khanna, now CTO, previously built software at Dropbox and Microsoft.

Business model

Ambient.ai sells an enterprise software platform that overlays existing security infrastructure, deployed as a cloud SOC with edge components across multiple customer sites. Purchases are enterprise sales-led (demo requests, sales engineers and strategic account managers), and the platform is positioned as an addition to, rather than replacement for, incumbent camera, VMS and access-control systems ("We don't replace your systems. We make them smart.").

Enterprise platform sold to large organizations across a base and add-on module structure (Ambient Foundation plus Advanced Forensics, Access Intelligence and Threat Detection); the company cites customer outcomes such as up to $500K in annual savings from reduced false alarms. Specific pricing terms are not disclosed.

Traction

The company reports 4x-plus top-line and customer growth since emerging from stealth in 2022, use by seven of the top ten U.S. technology companies and multiple Fortune 500 organizations, and named customers Adobe, VMware and Impossible Foods. Operating metrics cited include monitoring 100% of cameras 24/7, 95%+ reduction in false access-control alarms, 20x faster forensic investigations, and 90%+ of alerts resolved in under a minute. Headcount is listed as roughly 140+ by the company, 150 on its Y Combinator profile and 105 on Built In.

Latest developments

Ambient.ai announced Ambient Pulsar, a reasoning vision-language model for physical security, and has released new agentic capabilities across the Ambient Platform, including Agentic Video Walls and Case Management for monitoring and investigations, plus an expansion of Ambient Access Intelligence with infrastructure diagnostics and real-time perimeter visibility.

Full profile — market position, technology, go-to-market, geography, history, risks & controversies

Market position

Ambient.ai positions itself as the creator and leader of the "Agentic Physical Security" category, distinguishing its approach from legacy video analytics, AI-powered cameras and narrow point analytics. Recognition cited on its site includes Y Combinator Top Company, Forbes Cloud 100 Rising Star, "Next big things in tech," and SIW Reader's Choice Awards, with a 4.6/5 rating on G2.

The company contrasts its contextual, temporal reasoning approach with motion detection and single-frame object recognition, which it says produce excessive false positives and cannot distinguish real threats from routine activity. Claimed differentiators include an always-on reasoning VLM running at the edge, the broadest threat signature library in the industry with 150+ validated signatures, autonomous clearing of 95%+ of false access-control alarms, and hardware-agnostic deployment on existing camera and access infrastructure.

Technology

The core is "Ambient Intelligence," an edge-optimized AI engine, and Ambient Pulsar, described as the industry's first always-on, edge-optimized reasoning vision-language model purpose-built for physical security, trained on over one million hours of ethically sourced enterprise video and NVIDIA-accelerated. Four underlying engines handle visual perception (converting video frames into text and classifying people, objects and activities), multi-modal open-set vision-language interpretation, reasoning over human language for contextual assessment, and real-time stream indexing that tags frames for natural-language search and timeline reconstruction. The platform integrates with 200+ ONVIF-compliant cameras and correlates video with physical access control system (PACS) data.

Go-to-market

Direct enterprise sales supported by demo requests on the company site, regional and strategic account sales roles, sales engineers, technical account managers and customer success functions. The company also pursues a partner and integration ecosystem with other security vendors, including a partnership with ISS and a strategic investment and collaboration with access-control manufacturer Allegion, and maintains presence at industry events such as ISC West.

Large enterprises and institutions with distributed physical footprints, including corporate campuses, schools and universities, manufacturing sites, museums, data centers, energy and utility infrastructure, healthcare facilities and financial services firms. The company states its users include seven of the top ten U.S. technology companies and multiple Fortune 500 organizations, with Adobe, VMware and Impossible Foods named as customers.

Geography

Headquarters are listed as Redwood City, California, with San Francisco given as the location on the Y Combinator profile and San Jose, California as the datelinepoint of its 2023 funding release. Open roles span the SF Bay Area/Redwood City, Florida and Missouri in the United States and Bengaluru, India.

History

Ambient.ai went through Y Combinator's Winter 2017 batch. It operated in stealth before launching publicly in 2022, a year in which it also received press coverage from TechCrunch (January 2022) and Inc. (September 2022). The company raised Series A and Series B rounds led by Andreessen Horowitz, totaling $52 million, and in October 2023 added a $20 million strategic growth investment from Allegion Ventures, described as an up round and the largest check in that fund's history, bringing total funding above $72 million. Since launching out of stealth the company reports 4x-plus growth in top line and customers. In 2025-2026 it introduced Ambient Pulsar, a reasoning vision-language model, and shipped Agentic Video Walls and Case Management, alongside expanded agentic capabilities in Ambient Access Intelligence.

Risks & controversies

Sources reference bias and privacy concerns as issues in AI-powered building security that the company says it aims to avoid. Reported details about the company are inconsistent in places: the founding year is given as 2016 on the company's AI-info page and 2017 elsewhere, and headcount figures range from 105 to 150 across sources.

Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Adoption among top US technology companiesOct 2023Seven of the top 10 U.S. technology companies
Alerts resolved in under a minuteJan 202690%
Annual customer savings from false alarm reductionJan 2026$500K
Employees (company-stated)Jan 2026~140+
Forensic investigation speed-upJan 2026up to 20x faster investigations
Funding stageJan 2026Series B (private)
G2 ratingJan 20264.6 out of 5
Growth since launching out of stealthOct 20234x+ top-line and customer growth
HeadcountAug 2026159
Reduction in false access control alarmsJan 202695%
Supported ONVIF-compliant camerasJan 2026200 camera models
Team size (Y Combinator profile)Jan 2026150 people
Total employees (Built In)Jan 2026105 people
Total funding raisedOct 2023$72M
Training data for Ambient Pulsar VLMJan 20261,000,000 hours of enterprise video
Validated threat signaturesJan 2026150 signatures

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Founder mafia

3 people who came through Ambient.ai went on to found or lead other companies.

Competitors · 6

by search overlap
Avigilon55 shared keywordsAvigilon develops integrated physical security systems combining video surveillance, access control, intrusion detection, and sensors powered by AI. The company serves organizations globally seeking 24/7 visibility and control across their entire security infrastructure.
Coram AI47 shared keywordsCoram provides an AI-native physical security platform that unifies video security, access control, emergency management, and guest management for schools, hospitals, and multi-site teams. The platform enables AI-powered search, facial recognition, and rapid incident response across integrated hardware and software solutions.
Volt45 shared keywordsVOLT AI is a video security platform that uses AI to analyze feeds from an organization's existing cameras to detect weapons such as guns and knives and identify other threats, alerting security teams and first responders within seconds. It serves organizations of all sizes, from K-12 schools to Fortune 500 companies, with a focus on physical safety.
Ambient30 shared keywordsAmbient provides a "shared brain" that pools organizational knowledge across people and systems by mapping meetings, chats, and emails to accounts and initiatives. It integrates with CRM, project, and chat tools and lets teams query the customer record through AI assistants like Claude, ChatGPT, and Gemini, while managing access controls.
ZeroEyes27 shared keywordsZeroEyes provides AI-based visual weapon detection software that integrates with existing security cameras to analyze live video feeds for visible firearms in real time, with detections verified by trained analysts in its operations center before alerts are dispatched to personnel and law enforcement. It serves schools, campuses, and facilities across multiple U.S. states.
Ambience Healthcare26 shared keywordsAmbience is an AI platform that captures clinical encounters in real time, generates documentation, and suggests coding for healthcare providers across 200+ specialties. The platform helps health systems reduce clinician documentation burden, improve revenue integrity through coding accuracy, and ensure compliance.

Companies competing with Ambient.ai for the same Google search keywords, organic and paid, via search-intersection analysis.

Timeline · 7

launches, deals, and filings
Jan 2025
Industry recognition

Recognition cited by the company includes Y Combinator Top Company, Forbes Cloud 100 Rising Star, "Next big things in tech" and SIW Reader's Choice Awards.

source ↗

Jan 2025
Agentic Video Walls, Case Management and other platform capabilities

New agentic capabilities across the Ambient Platform for monitoring and investigations, including Agentic Video Walls and Case Management, went live.

source ↗

Jan 2025
Ambient Access Intelligence expanded with infrastructure diagnostics and real-time perimeter visibility

The company announced major new agentic capabilities for Ambient Access Intelligence, its access-control monitoring module.

source ↗

Jan 2025
Introduction of Ambient Pulsar reasoning vision-language model

Ambient.ai announced Ambient Pulsar, described as the first always-on, edge-optimized reasoning vision-language model purpose-built for physical security.

source ↗

Jan 2024
ISS partners with Ambient.ai

ISS announced a partnership with Ambient.ai to proactively prevent incidents.

source ↗

Oct 2023
Ambient.ai raises $20M strategic growth investment from Allegion Ventures

Allegion Ventures, the corporate venture fund of Allegion plc, made a $20 million strategic growth investment, described as the largest single check in the fund's history and an up round, bringing Ambient.ai's total funding to over $72 million.

$20M source ↗

Jan 2022
Launched out of stealth

Ambient.ai emerged from stealth in 2022; the company subsequently reported 4x-plus top-line and customer growth.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

In the news

Research sources · 8

primary sources listed

8 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Ambient.ai do?
Ambient.ai applies computer vision and vision-language AI to enterprise cameras and access control to detect and respond to physical security threats.
Who founded Ambient.ai?
Ambient.ai was founded by Shikhar Shrestha, Vikesh Khanna in 2017.
Who are Ambient.ai's investors?
Ambient.ai's investors include Allegion Ventures, Andreessen Horowitz, Cerity Partners Ventures, Lobby Capital, Monta Vista Capital, Y Combinator, Preface Ventures.
Where is Ambient.ai headquartered?
Ambient.ai is headquartered in San Francisco, US.