Physical security, surveillance and trust and safety

Door access and cameras 8 companies

Most offices open their doors with an ID badge and a card reader, and watch their lobbies with cameras. Today's camera systems record to the cloud, and software watches the video and alerts a guard when something happens, such as someone following an employee through a door.

Door access and cameras for buildings

Badges, readers and cameras for offices and other large buildings.

HIDPart of ASSA ABLOYHID, part of ASSA ABLOY, makes the cards, readers and credentials that open doors in many large buildings. It also issues digital certificates and sells login checks. It has engineers in Chennai and Bengaluru.Chennai · BengaluruHired recently

Eagle Eye NetworksEagle Eye Networks, from Austin, sells cloud camera systems: recording, video analysis and a link to the door-access system. It has been one company with Brivo, a door-access company, since December 2025.Bengaluru

VVideoneticsVideonetics, from Kolkata, is an Indian video-analysis company. It sells video management, traffic management and face recognition.Kolkata

Ambient.aiAmbient.ai, a US company with engineers in Bengaluru, sells only the software that watches a customer's existing cameras and recognises an incident, such as someone following an employee through a door.

QCICQCIC, from London with engineers in Bengaluru, designs the door-access and camera system for a building before it is installed, with a tool that produces the drawings automatically.

For homes and housing societies

Doorbells, cameras and door phones for homes and apartment buildings.

RingPart of AmazonRing, owned by Amazon, with engineers in Bengaluru, sells video doorbells, home cameras and alarms to households, all controlled from a phone.BengaluruHired recently

Alba UrmetAlba Urmet makes door-access hardware, video door phones and cameras for residential buildings.See alsoApartment society management apps

Protecting products, not buildings

Features that prove a banknote or a product is genuine.

Crane Authentication (NXT)Crane Authentication makes the physical features on banknotes and branded goods that prove they are genuine, and runs an online brand-protection service.BengaluruSee alsoBrand protection and product authentication

The tech, explainedPhysical access control Video management system (VMS)Video analytics Security system design software↗ Construction technology Home security cameras↗ Home technology Product authentication↗ E-commerce marketplaces

Security scanners and protecting people 4 companies

At an airport, every bag passes through an X-ray scanner, and software helps the operator spot a threat. Other companies protect people: they watch for threats against executives and offices, and in an emergency they tell every affected person what to do.

Security scanners

The X-ray scanners at airports and other checkpoints.

Smiths DetectionSmiths Detection makes airport and checkpoint scanners, and software that runs a whole fleet of its machines. It has engineers in Bengaluru.BengaluruHired recently

Rapiscan SystemsRapiscan Systems makes security scanners, and builds the software they run on in Hyderabad.HyderabadHired recently

Protecting people

Watching for threats against people, and reaching them in an emergency.

OnticOntic watches for threats against executives, offices and events, for companies' security teams, using news, social media and reports. It has engineers in Pune and Delhi NCR.Delhi NCR

EverbridgeEverbridge sells critical event management: when a fire, a flood, an attack or a power cut happens, its system tells every affected person what to do and checks that they are safe.BengaluruHiring nowSee alsoRegulatory compliance software

The tech, explainedSecurity screening systems Protective intelligence Critical event management

Trust and safety 2 companies

An app with millions of users has to deal with fake accounts, scams and abuse between its users. Trust and safety teams investigate each report and decide what to do. These companies give them tools, including tools that detect fake images and videos.

Contrails AIContrails AI, from Bengaluru, detects images, audio and video that were faked with AI. Apps, newsrooms and banks use it to decide whether what they are looking at is real.

Precognition LabsPrecognition Labs, from the Seattle area, builds AI agents that investigate a report of a fake account or abuse, collect the evidence and draft the decision for a person to approve.

The tech, explainedTrust and safety investigation↗ Social media Deepfake detection↗ Social media

How it all worksSmart buildingsChillers, lifts, doors, cameras and the software above them.

See how it works →

What's changing

AI now watches the cameras.

A large building has hundreds of cameras, and no guard can watch them all. AI models now watch every camera at once and alert a guard only when something happens, such as a person in a restricted area or a bag left behind.