Mobile World Congress presents a rare opportunity to take in the staggering global scale of startup innovation, all in one place. Startup founders, engineers and technologists from every corner of the world descended upon Barcelona this week seeking customers, investment, partnerships and publicity for each company’s Next Big Thing.

There are hundreds of startups exhibiting across the eight cavernous halls of the Fira Gran Via. We cover U.S. startups all the time, so at MWC this year we spoke to companies from almost every corner of the globe, across the Americas, Europe, Asia and Africa (we didn’t find any startups from Oceania). We couldn’t possibly include every company and country represented at the show, but after scouring the show floor, we’ve put together a diverse collection of some of the most innovative and outside-the-box startups from all over the world.

These tech startups span everything from augmented reality (AR), security and IoT to artificial intelligence, location services, mobile payments and beyond. We even found some startups using technology to help deaf and handicapped users. Check out the slideshow for the most interesting startups we found at MWC.

Mindrockets (Jordan)

According to the World Health Organization, 80 percent of the deaf community cannot read or write. Mindrockets, a startup based in Amman, Jordan, provides assistive technologies for the deaf in voice recording, book readers and YouTube videos. Mindrockets translates speech and text to sign language in real time using a 3D avatar that signs on the screen. Officially launching at the Seedstars Summit in April, the technology is available as a free app for Android, iOS or as a browser extension. According to the company, the app has accrued about 54,000 users over the past year, with 45,000 of those coming from the U.S.

Maxst (South Korea)

Of all the AR companies at the show, Seoul-based MAXST was the one providing the sort of immersive mixed reality experience that most resembled the promise of Magic Leap. The Revelio AR smart glasses (above) have a similar feel to Microsoft HoloLens, and the startup promising an “AR magic spell” at their booth has also built an AR/VR video conferencing platform and a 3-D SDK for headset and smartphone-based AR applications.

Wisesec (Israel)

Kino-mo (United Kingdom)

This London-based advertising media startup, which is backed by investors including Mark Cuban and Richard Branson, developed a 3-D hologram platform called Hypervsn. Designed for retail, entertainment, advertising and events, Hypervsn projects high-res holographic visuals rendered from images you can upload to its cloud-based content management system (CMS). When I walked up to the booth, I came face to face with a spinning futuristic array of holographic hamburgers and Pikachu figures (seen in the image above as blurs, as the camera couldn’t quite process the hologram).

Teach on Mars (France)

Cigo (Spain)

InstaDeep (Tunisia)

Dencrypt (Denmark)

Based in Copehagen, Dencrypt is an end-to-end encryption system that adds an extra layer of security atop AES with an algorithm that dynamically mutates. From an attacker’s perspective, the surface looks different from session to session. The startup has an encrypted messaging app, an encrypted server product and also offers an encrypted voice-over-IP (VoIP) service, which the company is currently implementing in the Danish Department of Defense.

Safe4 (Norway)

The Oslo-based Safe4 Security Group offers a turnkey solution for building smart home apps and IoT devices. What makes Safe4 different from other smart home startups is Onestri, its open IoT gateway (above) combining Wi-Fi, GSM, Bluetooth, thread radio and other connectivity options into a single smart home connectivity hub for building an interoperable IoT system.

Neura (Israel)

Cologne Intelligence (Germany)

Features + Analytics (Belgium)

Based in Nivelles, Belgium, Features + Analytics is a predictive modeling and machine learning firm. The company’s new eyeDES software leverages machine-learning algorithms to give businesses real-time risk management and surveillance data to predict market trends and analyze financial data.

Astrivis (Switzerland)

Technopurple (India)

Based in Mumbai, Technopurple uses GPS tracking in smartphones and vehicles to give managers a real-time productivity monitoring app for employees. Available for Android, iOS and web, Technopurple’s Effy app includes a live monitoring dashboard mapping employee locations integrated with Google Maps if your salespeople are out in the field, and includes analytics and route planning to improve efficiency.

SmartSoft (Mexico)

Telepport (Spain)

Infotech (Turkey)

This Istanbul-based startup offers mobile and location-based technology in vehicle tracking and navigation, and enterprise mobility applications for companies in Turkey, Jordan, Azerbaijan and Georgia. The company partners with Oracle, Ericsson and TomTom in the region on location-based services (LBS) for GSM (global system for mobile communication) providers in those countries.

Sikur (Brazil)

Headquartered in São Paulo, Brazil, Sikur is an endpoint security company offering a secure enterprise communication platform called Sikur Enterprise and consumer-facing Sikur Chat app, which pack encrypted messaging, calls, video chat and file sharing into an Android, iOS or desktop app. The company also has a privacy-focused smartphone called GranitePhone that includes all the base encryption features plus mobile device management (MDM) features.

AccessPal (Greece)

This Athens-based startup is dedicated to a sorely needed service: helping handicapped users navigate cities. The web app includes an accessible route navigator identifying wheelchair ramps and handicap-accessible transportation, plus features like parking violation tools and an urban recommendation engine that offers handicap urban development improvement ideas to local government.

Travis the Translator (The Netherlands)