Billions of devices, lots of opportunityThe predictions are getting a bit lurid \u2013 the Internet of Things will expand to around 20 billion connected devices by 2020, according to Gartner. (Other estimates range as high as ten times that figure.) MarketsandMarkets says that the market will expand from $170 billion last year to over half a trillion dollars by 2022. So who will be the biggest players in this huge and growing market? Find out here. (Note: Companies are listed in alphabetical order.) Amazon Web ServicesImage by AmazonWhen a project is complicated enough, being able to abstract a big subset of details out of it is a great ability to have. Enter Amazon, which has had a range of IoT services available on its AWS IoT platform since 2015. These include a core interconnection layer, sync via AWS Greengrass, analytics and even support for simple IoT based on those Dash buttons you can use to quickly order new dish soap.ARMImage by Getty ImagesAs a major semiconductor manufacturer, a big new wave of computerized devices hitting the market can only be good news for ARM. The company\u2019s also launching a new series of chips, called Project Trillium, designed to offer machine learning capabilities for IoT deployments.AT&TImage by Getty ImagesThe \u201cInternet\u201d part of the IoT is key here, as AT&T and the other major wireless carriers are hoping that their networks will be the home for a large proportion of IoT traffic, particularly those implementations that have a need to communicate over long distances and between multiple sites.AylaImage by Getty ImagesAyla\u2019s a startup, but one that boasts 100 \u201clarge enterprise\u201d customers and that just closed a hefty $60 million Series D round of funding in November. The product is an \u201cagile\u201d IoT platform, a software framework designed to integrate collection, ingestion and analysis of IoT data in way that\u2019s easy for businesses to apply to their existing processes.BoschImage by Getty ImagesBosch was in on the ground floor of the current wave of IoT and was ahead of the curve in a lot of ways on home automation and connected home devices. The company\u2019s IoT Suite is a robust platform for IoT development, and it\u2019s been branching out of late, opening a new IoT HQ in Berlin and looking to move into connected-car projects.CiscoImage by ThinkstockIf it\u2019s on the network, Cisco\u2019s an important component of it, and IoT is no exception. The company\u2019s taking an acquisitions and partnerships approach to the burgeoning field, with an emphasis on connected-car tech and narrow-band IoT, working with mobile service providers around the world to offer a connection backbone for widely distributed IoT implementations.DellImage by Getty ImagesLike many of the biggest names in IT, Dell\u2019s working to add an \u201co\u201d in the middle. The company has had a dedicated IoT division since October 2017, and has pledged to spend $1 billion in research on new IoT products and solutions. Dell\u2019s offerings will likely center on a so-called \u201cdistributed core\u201d model, where compute functionality is pushed out of the data center and onto edge devices.FujitsuImage by ThinkstockFujitsu is primarily an IIoT company these days, partnering with a lengthy roster of tech heavyweights like Microsoft and Cisco to deliver custom implementations to clients. In addition to analysis services for IIoT data, Fujitsu\u2019s trying to address a diverse set of applications \u2013 everything from aviation to agriculture.GEImage by ThinkstockGE got in on the ground floor of the Industrial Internet of Things\/Industry 4.0 movement that focuses on next-generation instrumentation of industrial processes. The company\u2019s Predix product is a purpose-built IIoT platform that can be used as a framework for a huge range of different projects. It\u2019s designed to be a bolt-on solution to automating industrial processes from manufacturing to preventative maintenance and beyond.GoogleImage by ThinkstockGet ready to read this a lot \u2013 Google\u2019s a cloud and services powerhouse that\u2019s working hard to grab its chunk of the oodles of IoT money soon to be swimming around the marketplace. The search giant\u2019s play is centered on its Cloud IoT Core product, a Google-managed software platform designed to serve as a foundation for almost any IoT project.HitachiImage by ThinktstockHitachi did a little rebranding in September \u2013 changing the name \u201cHitachi Data Systems\u201d to \u201cHitachi Vantara\u201d and rolling two other subsidiaries, Insight Group (initially formed as the company\u2019s IoT arm) and Pentaho (a recently acquired data-analysis and visualization firm), into the new company. The idea is to leverage the company\u2019s long-standing industrial and storage expertise into a way to provide intelligent insight into IoT-derived data.HuaweiImage by ThinkstockAs one of the biggest networking vendors out there, Huawei\u2019s got a major role to play in IoT, and the company knows it. It\u2019s been eager to foreground its smart-city tech, like integrated services, communications and video analysis, and the company\u2019s strategy is likely to revolve around dominating the access layer with its wireless and cloud technology.IBMImage by IBMIf you guessed that IBM would press its Watson AI product into the service of its IoT offerings, congratulations! Like Watson playing Jeopardy, you are correct. The idea is to use Watson\u2019s powerful machine learning capabilities to help dredge insights out of the mass of data created by large-scale IoT implementations.IntelImage by ThinkstockIntel\u2019s in a funny spot, as far as IoT is concerned. It\u2019s still the most important silicon vendor in the world, but the market has been moving away from its traditional strengths in desktops and laptops for some time. The company recently said that, while the bulk of its cash flow still comes from the client PC space, it makes $3 billion a year from IoT business.MicrosoftImage by Thinkstock\/AzureFor Microsoft, it\u2019s all about the cloud, and if that cloud is colored Azure, so much the better. The company\u2019s Azure IoT Central product is a SaaS offering, with all the attendant upsides and downsides, designed to let users roll their own IoT software implementations at great scale and high speed.ParticleImage by ThinkstockTrying to build an ecosystem from scratch is a big ask, but startup Particle has a secret weapon \u2013 focus. Having placed the emphasis on the enterprise market from the beginning, the company has a top-to-bottom IoT platform that covers everything from microcontrollers to the cloud.QualcommImage by Getty ImagesQualcomm\u2019s one of the biggest manufacturers of small processors around, and a cornerstone of the global wireless market. Therefore, it\u2019s an important player in the developing world of IoT on several different fronts, from lightweight chips for newly connected devices to edge hardware and IoT-focused routers.SamsungImage by Getty ImagesAgain, stop us if you\u2019ve heard this one before \u2013 as one of the biggest technology companies in the world, Samsung\u2019s thinking big where the IoT is concerned, creating the ARTIK smart-IoT software platform to try and capture a major share of the marketplace. Thanks to its position as a manufacturer of home appliances, the company\u2019s thinking small; building IoT tech into washers, refrigerators and the like.SAPImage by ThinkstockFollowing the pattern of big companies grafting IoT onto what they do well already, SAP has positioned its cloud-based S\/4HANA ERP product as a place to store and analyze the data from connected devices. What\u2019s more, the company\u2019s Leonardo software suite is an IoT-specific toolset for application and product design.SiemensImage by Getty ImagesLike GE, Siemens is a company with deep roots in the world of industry that has moved into industrial IoT in a big way. The company\u2019s MindSphere competes with GE\u2019s Predix, PTC\u2019s ThingWorx and others in the industrial platform space for users trying to deliver tech like predictive analytics to industrial workplaces.